High-Potential Electrocatalytic O2 Reduction with Nitroxyl/NOx Mediators: Implications for Fuel Cells and Aerobic Oxidation Catalysis
Abstract
Efficient reduction of O2 to water is a central challenge in energy conversion and many aerobic oxidation reactions. Here, we show that the electrochemical oxygen reduction reaction (ORR) can be achieved at high potentials by using soluble organic nitroxyl and nitrogen oxide (NOx) mediators. When used alone, neither organic nitroxyls, such as 2,2,6,6-tetramethyl-1-piperidinyl-N-oxyl (TEMPO), nor NOx species, such as sodium nitrite, are effective ORR mediators. The combination of nitroxyl/NOx species, however, mediates sustained O2 reduction with overpotentials as low as 300 mV in acetonitrile containing trifluoroacetic acid. Mechanistic analysis of the coupled redox reactions supports a process in which the nitrogen oxide catalyst drives aerobic oxidation of a nitroxyl mediator to an oxoammonium species, which then is reduced back to the nitroxyl at the cathode. The electrolysis potential is dictated by the oxoammonium/nitroxyl reduction potential. The overpotentials accessible with this ORR system are significantly lower than widely studied molecular metal-macrocycle ORR catalysts and benefit from the mechanism-based specificity for four-electron reduction of oxygen to water mediated by NOx species, together with kinetically efficient reduction of oxidized NOx species by TEMPO and other organic nitroxyls.
- Authors:
-
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Center for Molecular Electrocatalysis (CME)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1194822
- Alternate Identifier(s):
- OSTI ID: 1370628
- Grant/Contract Number:
- AC05-76RL01830
- Resource Type:
- Published Article
- Journal Name:
- ACS Central Science
- Additional Journal Information:
- Journal Name: ACS Central Science Journal Volume: 1 Journal Issue: 5; Journal ID: ISSN 2374-7943
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; catalysis (homogeneous); catalysis (heterogeneous); solar (fuels); bio-inspired; energy storage (including batteries and capacitors); hydrogen and fuel cells; charge transport; materials and chemistry by design; synthesis (novel materials); oxidation reactions; catalysts; redox reactions; oxidation electrodes
Citation Formats
Gerken, James B., and Stahl, Shannon S. High-Potential Electrocatalytic O2 Reduction with Nitroxyl/NOx Mediators: Implications for Fuel Cells and Aerobic Oxidation Catalysis. United States: N. p., 2015.
Web. doi:10.1021/acscentsci.5b00163.
Gerken, James B., & Stahl, Shannon S. High-Potential Electrocatalytic O2 Reduction with Nitroxyl/NOx Mediators: Implications for Fuel Cells and Aerobic Oxidation Catalysis. United States. https://doi.org/10.1021/acscentsci.5b00163
Gerken, James B., and Stahl, Shannon S. Wed .
"High-Potential Electrocatalytic O2 Reduction with Nitroxyl/NOx Mediators: Implications for Fuel Cells and Aerobic Oxidation Catalysis". United States. https://doi.org/10.1021/acscentsci.5b00163.
@article{osti_1194822,
title = {High-Potential Electrocatalytic O2 Reduction with Nitroxyl/NOx Mediators: Implications for Fuel Cells and Aerobic Oxidation Catalysis},
author = {Gerken, James B. and Stahl, Shannon S.},
abstractNote = {Efficient reduction of O2 to water is a central challenge in energy conversion and many aerobic oxidation reactions. Here, we show that the electrochemical oxygen reduction reaction (ORR) can be achieved at high potentials by using soluble organic nitroxyl and nitrogen oxide (NOx) mediators. When used alone, neither organic nitroxyls, such as 2,2,6,6-tetramethyl-1-piperidinyl-N-oxyl (TEMPO), nor NOx species, such as sodium nitrite, are effective ORR mediators. The combination of nitroxyl/NOx species, however, mediates sustained O2 reduction with overpotentials as low as 300 mV in acetonitrile containing trifluoroacetic acid. Mechanistic analysis of the coupled redox reactions supports a process in which the nitrogen oxide catalyst drives aerobic oxidation of a nitroxyl mediator to an oxoammonium species, which then is reduced back to the nitroxyl at the cathode. The electrolysis potential is dictated by the oxoammonium/nitroxyl reduction potential. The overpotentials accessible with this ORR system are significantly lower than widely studied molecular metal-macrocycle ORR catalysts and benefit from the mechanism-based specificity for four-electron reduction of oxygen to water mediated by NOx species, together with kinetically efficient reduction of oxidized NOx species by TEMPO and other organic nitroxyls.},
doi = {10.1021/acscentsci.5b00163},
journal = {ACS Central Science},
number = 5,
volume = 1,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2015},
month = {Wed Jul 15 00:00:00 EDT 2015}
}
https://doi.org/10.1021/acscentsci.5b00163
Web of Science
Works referenced in this record:
Efficient Aerobic Oxidation of Secondary Alcohols at Ambient Temperature with an ABNO/NO x Catalyst System
journal, October 2013
- Lauber, Markus B.; Stahl, Shannon S.
- ACS Catalysis, Vol. 3, Issue 11
Determination of Rate Constants in Second-Order Kinetics Using UV-Visible Spectroscopy
journal, January 2001
- Bijlsma, Sabina; Boelens, Hans F. M.; Smilde, Age K.
- Applied Spectroscopy, Vol. 55, Issue 1
Aerobic oxidation catalysis with stable radicals
journal, January 2014
- Cao, Qun; Dornan, Laura M.; Rogan, Luke
- Chem. Commun., Vol. 50, Issue 35
Spectroscopic and Optimization Modeling Study of Nitrous Acid in Aqueous Solution
journal, February 2005
- Riordan, Eoin; Minogue, Nicholas; Healy, David
- The Journal of Physical Chemistry A, Vol. 109, Issue 5
Mechanistic - Kinetic Scheme of Oxidation/Reduction of TEMPO Involving Hydrogen Bonded Dimer. RDE Probe for Availability of Protons in Reaction Environment
journal, October 2004
- Janiszewska, Anna?Maria; Grzeszczuk, Maria
- Electroanalysis, Vol. 16, Issue 20
Potent catalysis of the electroreduction of oxygen to water by dicobalt porphyrin dimers adsorbed on graphite electrodes
journal, July 1979
- Collman, James P.; Marrocco, Matt; Denisevich, Peter
- Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, Vol. 101, Issue 1
Multicopper Models for the Laccase Active Site: Effect of Nuclearity on Electrocatalytic Oxygen Reduction
journal, July 2014
- Tse, Edmund C. M.; Schilter, David; Gray, Danielle L.
- Inorganic Chemistry, Vol. 53, Issue 16
From Structural Models of Galactose Oxidase to Homogeneous Catalysis: Efficient Aerobic Oxidation of Alcohols
journal, September 1998
- Chaudhuri, Phalguni; Hess, Martina; Flörke, Ulrich
- Angewandte Chemie International Edition, Vol. 37, Issue 16
Electrode catalysis of the four-electron reduction of oxygen to water by dicobalt face-to-face porphyrins
journal, September 1980
- Collman, James P.; Denisevich, Peter; Konai, Yutaka
- Journal of the American Chemical Society, Vol. 102, Issue 19
Role of Proton-Coupled Electron Transfer in O–O Bond Activation
journal, July 2007
- Rosenthal, Joel; Nocera, Daniel G.
- Accounts of Chemical Research, Vol. 40, Issue 7
Isolation of Functionalized Phenolic Monomers through Selective Oxidation and CO Bond Cleavage of the β-O-4 Linkages in Lignin
journal, November 2014
- Lancefield, Christopher S.; Ojo, O. Stephen; Tran, Fanny
- Angewandte Chemie International Edition, Vol. 54, Issue 1
Aerobic Alcohol Oxidations Mediated by Nitric Acid
journal, October 2011
- Aellig, Christof; Girard, Christophe; Hermans, Ive
- Angewandte Chemie International Edition, Vol. 50, Issue 51
Recent advancements and challenges of palladiumII-catalyzed oxidation reactions with molecular oxygen as the sole oxidant
journal, January 2009
- Gligorich, Keith M.; Sigman, Matthew S.
- Chemical Communications, Issue 26
Electronic effects in transition metal porphyrins. 2. The sensitivity of redox and ligand addition reactions in para-substituted tetraphenylporphyrin complexes of cobalt(II)
journal, June 1976
- Walker, F. Ann; Beroiz, D.; Kadish, K. M.
- Journal of the American Chemical Society, Vol. 98, Issue 12
Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs
journal, March 2005
- Gasteiger, Hubert A.; Kocha, Shyam S.; Sompalli, Bhaskar
- Applied Catalysis B: Environmental, Vol. 56, Issue 1-2, p. 9-35
A mechanistic glimpse into the oxidation of alcohols using TEMPO/NOx catalytic systems: towards a greener bifunctional catalyst
journal, January 2013
- Ionita, Petre
- RSC Advances, Vol. 3, Issue 44
Electrocatalytic O 2 Reduction by Covalently Immobilized Mononuclear Copper(I) Complexes: Evidence for a Binuclear Cu 2 O 2 Intermediate
journal, March 2011
- McCrory, Charles C. L.; Devadoss, Anando; Ottenwaelder, Xavier
- Journal of the American Chemical Society, Vol. 133, Issue 11
Analysis of Porphyrines as Catalysts for Electrochemical Reduction of O 2 and Oxidation of H 2 O
journal, January 2014
- Baran, Jakub D.; Grönbeck, Henrik; Hellman, Anders
- Journal of the American Chemical Society, Vol. 136, Issue 4
Catalytic Activity of Biscobalt Porphyrin-Corrole Dyads Toward the Reduction of Dioxygen
journal, March 2009
- Kadish, Karl M.; Frémond, Laurent; Shen, Jing
- Inorganic Chemistry, Vol. 48, Issue 6
Kinetic studies on the single electron transfer reaction between 2, 2, 6, 6-tetramethylpiperidine oxoammonium ions and phenothiazines: the application of Marcus theory
journal, April 1999
- Wu, Longmin; Guo, Xia; Wang, Jun
- Science in China Series B: Chemistry, Vol. 42, Issue 2
Aerobic Oxidation of Pd II to Pd IV by Active Radical Reactants: Direct C–H Nitration and Acylation of Arenes via Oxygenation Process with Molecular Oxygen
journal, February 2015
- Liang, Yu-Feng; Li, Xinyao; Wang, Xiaoyang
- ACS Catalysis, Vol. 5, Issue 3
Anaerobic Nitroxide-Catalyzed Oxidation of Alcohols Using the NO + /NO· Redox Pair
journal, December 2013
- Holan, Martin; Jahn, Ullrich
- Organic Letters, Vol. 16, Issue 1
Oxygen carrier and redox properties of some neutral cobalt chelates. Axial and in-plane ligand effects
journal, January 1974
- Carter, Mark J.; Rillema, D. Paul; Basolo, Fred
- Journal of the American Chemical Society, Vol. 96, Issue 2, p. 392-400
Mechanistic Insight into Aerobic Alcohol Oxidation Using NO x –Nitroxide Catalysis Based on Catalyst Structure–Activity Relationships
journal, October 2014
- Shibuya, Masatoshi; Nagasawa, Shota; Osada, Yuji
- The Journal of Organic Chemistry, Vol. 79, Issue 21
High-Oxidation-State Palladium Catalysis: New Reactivity for Organic Synthesis
journal, October 2009
- Muñiz, Kilian
- Angewandte Chemie International Edition, Vol. 48, Issue 50
Catalytic Oxidation of Organic Substrates by Molecular Oxygen and Hydrogen Peroxide by Multistep Electron Transfer—A Biomimetic Approach
journal, April 2008
- Piera, Julio; Bäckvall, Jan-E.
- Angewandte Chemie International Edition, Vol. 47, Issue 19
Kinetics and mechanism of the comproportionation reaction between oxoammonium cation and hydroxylamine derived from cyclic nitroxides
journal, February 2005
- Israeli, Avner; Patt, Miriam; Oron, Miriam
- Free Radical Biology and Medicine, Vol. 38, Issue 3
Nitrogen Cycle Electrocatalysis
journal, June 2009
- Rosca, Victor; Duca, Matteo; de Groot, Matheus T.
- Chemical Reviews, Vol. 109, Issue 6
Direct Determination of Equilibrium Potentials for Hydrogen Oxidation/Production by Open Circuit Potential Measurements in Acetonitrile
journal, June 2012
- Roberts, John A. S.; Bullock, R. Morris
- Inorganic Chemistry, Vol. 52, Issue 7
Study of the Kinetics of Vanadium Redox Reaction by Rotating Disk Electrode
journal, October 2011
- Wu, Chun-Hsing; Liao, Hsin-Yi; Hsueh, Kan-Lin
- ECS Transactions, Vol. 35, Issue 32
Organic Nitrosonium Salts. II. Stability Studies and Oxidations of Some Indole Derivatives
journal, January 1990
- M. Bobbitt, James; M. Bobbitt, James; Cecile Flores Guttermuth, M.
- HETEROCYCLES, Vol. 30, Issue 2
Mechanistic Study of Alcohol Oxidation by the Pd(OAc) 2 /O 2 /DMSO Catalyst System and Implications for the Development of Improved Aerobic Oxidation Catalysts
journal, February 2002
- Steinhoff, Bradley A.; Fix, Shannon R.; Stahl, Shannon S.
- Journal of the American Chemical Society, Vol. 124, Issue 5
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)/tert-Butyl Nitrite/Oxygen: A Versatile Catalytic Oxidation System
journal, November 2011
- Shen, Zhenlu; Dai, Jialiang; Xiong, Jie
- Advanced Synthesis & Catalysis, Vol. 353, Issue 16
Chemoselective Metal-Free Aerobic Alcohol Oxidation in Lignin
journal, April 2013
- Rahimi, Alireza; Azarpira, Ali; Kim, Hoon
- Journal of the American Chemical Society, Vol. 135, Issue 17, p. 6415-6418
Recommendations on reporting electrode potentials in nonaqueous solvents (Provisional)
journal, January 1982
- Gritzner, G.; Kuta, J.
- Pure and Applied Chemistry, Vol. 54, Issue 8
Reduction Potentials of One‐Electron Couples Involving Free Radicals in Aqueous Solution
journal, October 1989
- Wardman, Peter
- Journal of Physical and Chemical Reference Data, Vol. 18, Issue 4
Mechanistic aspects of the catalytic reduction of dioxygen by cofacial metalloporphyrins
journal, May 1983
- Durand, Richard R.; Bencosme, C. Susana; Collman, James P.
- Journal of the American Chemical Society, Vol. 105, Issue 9
Molecular Oxygen To Regenerate PdII Active Species
journal, October 2006
- Muzart, Jacques
- Chemistry – An Asian Journal, Vol. 1, Issue 4
Aerobic oxidative deprotection of benzyl-type ethers under atmospheric pressure catalyzed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)/tert-butyl nitrite
journal, March 2013
- Shen, Zhenlu; Sheng, Lili; Zhang, Xiaochu
- Tetrahedron Letters, Vol. 54, Issue 12
Highly Efficient Catalytic Aerobic Oxidations of Benzylic Alcohols in Water
journal, January 2005
- Liu, Renhua; Dong, Chunyan; Liang, Xinmiao
- The Journal of Organic Chemistry, Vol. 70, Issue 2
Preparation of 4-Acetylamino-2,2,6,6-Tetramethylpiperidine-1-Oxoammonium Tetrafluoroborate, and the Oxidation of Geraniol to Geranial
journal, January 2005
- Bobbitt, James M.; Merbouh, Nabyl
- Organic Syntheses, Vol. 82, p. 80
Palladium-catalyzed aerobic acetoxylation of benzene using NOx-based redox mediators
journal, September 2015
- Zultanski, Susan L.; Stahl, Shannon S.
- Journal of Organometallic Chemistry, Vol. 793
Hangman Corroles: Efficient Synthesis and Oxygen Reaction Chemistry
journal, January 2011
- Dogutan, Dilek K.; Stoian, Sebastian A.; McGuire, Robert
- Journal of the American Chemical Society, Vol. 133, Issue 1
Combined Redox Couples for Catalytic Oxidation of Methane by Dioxygen at Low Temperatures
journal, December 2006
- An, Zengjian; Pan, Xiulian; Liu, Xiumei
- Journal of the American Chemical Society, Vol. 128, Issue 50
Cobalt(III) Corroles as Electrocatalysts for the Reduction of Dioxygen: Reactivity of a Monocorrole, Biscorroles, and Porphyrin−Corrole Dyads
journal, April 2005
- Kadish, Karl M.; Frémond, Laurent; Ou, Zhongping
- Journal of the American Chemical Society, Vol. 127, Issue 15
Efficient reduction of dioxygen with ferrocene derivatives, catalyzed by metalloporphyrins in the presence of perchloric acid
journal, June 1989
- Fukuzumi, Shunichi; Mochizuki, Seiji; Tanaka, Toshio
- Inorganic Chemistry, Vol. 28, Issue 12
The Aerobic Oxidation of a Pd(II) Dimethyl Complex Leads to Selective Ethane Elimination from a Pd(III) Intermediate
journal, January 2012
- Khusnutdinova, Julia R.; Rath, Nigam P.; Mirica, Liviu M.
- Journal of the American Chemical Society, Vol. 134, Issue 4
Dioxygen activation by an organometallic Pd( ii ) precursor: formation of a Pd( iv )–OH complex and its C–O bond formation reactivity
journal, January 2014
- Qu, Fengrui; Khusnutdinova, Julia R.; Rath, Nigam P.
- Chem. Commun., Vol. 50, Issue 23
Aerobic Palladium-Catalyzed Dioxygenation of Alkenes Enabled by Catalytic Nitrite
journal, November 2014
- Wickens, Zachary K.; Guzmán, Pablo E.; Grubbs, Robert H.
- Angewandte Chemie International Edition, Vol. 54, Issue 1
Biochemistry of nitric oxide and its redox-activated forms
journal, December 1992
- Stamler, J.; Singel, D.; Loscalzo, J.
- Science, Vol. 258, Issue 5090
Molecular Catalysis of Electrochemical Reactions. Mechanistic Aspects
journal, July 2008
- Savéant, Jean-Michel
- Chemical Reviews, Vol. 108, Issue 7, p. 2348-2378
Oxygen Electrochemistry as a Cornerstone for Sustainable Energy Conversion
journal, December 2013
- Katsounaros, Ioannis; Cherevko, Serhiy; Zeradjanin, Aleksandar R.
- Angewandte Chemie International Edition, Vol. 53, Issue 1
Bimetallic Redox Synergy in Oxidative Palladium Catalysis
journal, October 2011
- Powers, David C.; Ritter, Tobias
- Accounts of Chemical Research, Vol. 45, Issue 6
Reactions of Nitric Oxide, Peroxynitrite, and Carbonate Radicals with Nitroxides and Their Corresponding Oxoammonium Cations
journal, February 2004
- Goldstein, Sara; Samuni, Amram; Merenyi, Gabor
- Chemical Research in Toxicology, Vol. 17, Issue 2
Electron transfer between azide and chlorine dioxide: the effect of solvent barrier nonadditivity
journal, May 1993
- Awad, H. H.; Stanbury, D. M.
- Journal of the American Chemical Society, Vol. 115, Issue 9
Palladium Oxidase Catalysis: Selective Oxidation of Organic Chemicals by Direct Dioxygen-Coupled Turnover
journal, June 2004
- Stahl, Shannon S.
- Angewandte Chemie International Edition, Vol. 43, Issue 26
Selective Oxidation of Unsaturated Alcohols Catalyzed by Sodium Nitrite and 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone with Molecular Oxygen under Mild Conditions
journal, December 2011
- Wang, Lianyue; Li, Jun; Yang, Hua
- The Journal of Organic Chemistry, Vol. 77, Issue 1
Redox equilibria of the nitrosonium cation and of its nonbonded complexes
journal, October 1990
- Lee, K. Y.; Kuchynka, D. J.; Kochi, Jay K.
- Inorganic Chemistry, Vol. 29, Issue 21
Electrocatalytic Oxygen Reduction by Iron Tetra-arylporphyrins Bearing Pendant Proton Relays
journal, March 2012
- Carver, Colin T.; Matson, Benjamin D.; Mayer, James M.
- Journal of the American Chemical Society, Vol. 134, Issue 12
Electrocatalysis of oxygen reduction. 5. Oxygen to hydrogen peroxide conversion by cobalt(II) tetrakis(N-methyl-4-pyridyl)porphyrin
journal, November 1985
- Chan, Ray J. H.; Su, Y. Oliver; Kuwana, Theodore
- Inorganic Chemistry, Vol. 24, Issue 23
On the Theory of Electron‐Transfer Reactions. VI. Unified Treatment for Homogeneous and Electrode Reactions
journal, July 1965
- Marcus, R. A.
- The Journal of Chemical Physics, Vol. 43, Issue 2
Novel Multinuclear Catalysts for the Electroreduction of Dioxygen Directly to Water
journal, November 1997
- Anson, Fred C.; Shi, Chunnian; Steiger, Beat
- Accounts of Chemical Research, Vol. 30, Issue 11
Functional Analogues of Cytochrome c Oxidase, Myoglobin, and Hemoglobin
journal, February 2004
- Collman, James P.; Boulatov, Roman; Sunderland, Christopher J.
- Chemical Reviews, Vol. 104, Issue 2
Palladium-Catalyzed Ligand-Directed C−H Functionalization Reactions
journal, February 2010
- Lyons, Thomas W.; Sanford, Melanie S.
- Chemical Reviews, Vol. 110, Issue 2
Sustainable, mild and efficient p-methoxybenzyl ether deprotections utilizing catalytic DDQ
journal, October 2014
- Walsh, Katie; Sneddon, Helen F.; Moody, Christopher J.
- Tetrahedron, Vol. 70, Issue 40
Biphasic Synthesis of Hydrogen Peroxide from Carbon Monoxide, Water, and Oxygen Catalyzed by Palladium Complexes with Bidentate Nitrogen Ligands
journal, March 1999
- Bianchi, Daniele; Bortolo, Rossella; D'Aloisio, Rino
- Angewandte Chemie International Edition, Vol. 38, Issue 5
Electrocatalytic reduction of molecular oxygen using non-planar cobalt tetrakis-(4-sulfonatophenyl)-β-octabromoporphyrin
journal, April 1997
- D'Souza, Francis; Hsieh, Yi-Ying; Deviprasad, G. R.
- Journal of Electroanalytical Chemistry, Vol. 426, Issue 1-2
Efficient Two-Electron Reduction of Dioxygen to Hydrogen Peroxide with One-Electron Reductants with a Small Overpotential Catalyzed by a Cobalt Chlorin Complex
journal, February 2013
- Mase, Kentaro; Ohkubo, Kei; Fukuzumi, Shunichi
- Journal of the American Chemical Society, Vol. 135, Issue 7
Redox catalysis in organic electrosynthesis: basic principles and recent developments
journal, January 2014
- Francke, Robert; Little, R. Daniel
- Chemical Society Reviews, Vol. 43, Issue 8
Pulsradiolytische Beobachtungen über die Reduktion des NO 3 − -Ions und über Bildung und Zerfall der persalpetrigen Säure in wäßriger Lösung
journal, March 1970
- Grätzel, M.; Henglein, A.; Taniguchi, S.
- Berichte der Bunsengesellschaft für physikalische Chemie, Vol. 74, Issue 3
Homogeneous catalysis of the electrochemical reduction of dioxygen by a macrocyclic cobalt(III) complex
journal, December 1981
- Geiger, Thomas; Anson, Fred C.
- Journal of the American Chemical Society, Vol. 103, Issue 25
Dinitrogen trioxide. Part XI. The electronic spectrum of dinitrogen trioxide
journal, January 1972
- Shaw, A. W.; Vosper, A. J.
- Journal of the Chemical Society, Dalton Transactions, Issue 8-9
The NO2 absorption spectrum. I: Absorption cross-sections at ambient temperature in the 300?500 nm region
journal, March 1995
- M�rienne, M. F.; Jenouvrier, A.; Coquart, B.
- Journal of Atmospheric Chemistry, Vol. 20, Issue 3
Accurate Rate Constants for Decomposition of Aqueous Nitrous Acid
journal, January 2012
- Rayson, Mark S.; Mackie, John C.; Kennedy, Eric M.
- Inorganic Chemistry, Vol. 51, Issue 4
Exploration of gas sensing possibilities with edge plane pyrolytic graphite electrodes: nitrogen dioxide detection
journal, January 2005
- Banks, Craig E.; Goodwin, Alexander; Heald, Charles G. R.
- The Analyst, Vol. 130, Issue 3
Nitrate as a redox co-catalyst for the aerobic Pd-catalyzed oxidation of unactivated sp3-C–H bonds
journal, January 2012
- Stowers, Kara J.; Kubota, Asako; Sanford, Melanie S.
- Chemical Science, Vol. 3, Issue 11
The NO2 Absorption Spectrum. IV: The 200–400 nm Region at 220 K
journal, January 1997
- Merienne, M. F.; Jenouvrier, A.; Coquart, B.
- Journal of Atmospheric Chemistry, Vol. 27, Issue 3, p. 219-232
Molecular Catalysts for Multielectron Redox Reactions of Small Molecules: The“Cofacial Metallodiporphyrin” Approach
journal, September 1994
- Collman, James P.; Wagenknecht, Paul S.; Hutchison, James E.
- Angewandte Chemie International Edition in English, Vol. 33, Issue 1516
The NO2 absorption spectrum. II. Absorption cross-sections at low temperatures in the 400?500 nm region
journal, July 1995
- Coquart, B.; Jenouvrier, A.; Merienne, M. F.
- Journal of Atmospheric Chemistry, Vol. 21, Issue 3
The use of cyclic nitroxide radicals as HNO scavengers
journal, January 2013
- Samuni, Yuval; Samuni, Uri; Goldstein, Sara
- Journal of Inorganic Biochemistry, Vol. 118
Electrocatalytic four-electron reduction of oxygen to water by a highly flexible cofacial cobalt bisporphyrin
journal, January 2000
- Chang, Christopher J.; Deng, Yongqi; Nocera, Daniel G.
- Chemical Communications, Issue 15
H 2 Evolution and Molecular Electrocatalysts: Determination of Overpotentials and Effect of Homoconjugation
journal, November 2010
- Fourmond, Vincent; Jacques, Pierre-André; Fontecave, Marc
- Inorganic Chemistry, Vol. 49, Issue 22
Reaction of Cyclic Nitroxides with Nitrogen Dioxide: The Intermediacy of the Oxoammonium Cations
journal, July 2003
- Goldstein, Sara; Samuni, Amram; Russo, Angelo
- Journal of the American Chemical Society, Vol. 125, Issue 27
Highly Efficient, Organocatalytic Aerobic Alcohol Oxidation
journal, May 2011
- Shibuya, Masatoshi; Osada, Yuji; Sasano, Yusuke
- Journal of the American Chemical Society, Vol. 133, Issue 17
Nitroxide-catalyzed transition-metal-free aerobic oxidation processes
journal, January 2013
- Wertz, Sebastian; Studer, Armido
- Green Chemistry, Vol. 15, Issue 11
A chemically regenerative redox fuel cell. II
journal, July 1985
- Kummer, J. T.; Oei, D. -G.
- Journal of Applied Electrochemistry, Vol. 15, Issue 4
Autoxidation kinetics of aqueous nitric oxide
journal, July 1993
- Ford, Peter C.; Wink, David A.; Stanbury, David M.
- FEBS Letters, Vol. 326, Issue 1-3
Solvent dynamical effects on the electron self-exchange rate of the TEMPO˙/TEMPO + couple (TEMPO = 2,2,6,6-tetramethyl-1-piperidinyloxy radical) : Part I. ESR-linebroadening measurements at T = 298 K
journal, January 2002
- Grampp, Guenter; Rasmussen, Kenneth
- Phys. Chem. Chem. Phys., Vol. 4, Issue 22
Electroreduction of oxygen by pillared cobalt(II) cofacial diporphyrin catalysts
journal, May 1984
- Chang, C. K.; Liu, H. Y.; Abdalmuhdi, I.
- Journal of the American Chemical Society, Vol. 106, Issue 9
ON THE THEORY OF OXIDATION—REDUCTION REACTIONS INVOLVING ELECTRON TRANSFER. V. COMPARISON AND PROPERTIES OF ELECTROCHEMICAL AND CHEMICAL RATE CONSTANTS 1
journal, April 1963
- Marcus, R. A.
- The Journal of Physical Chemistry, Vol. 67, Issue 4
Transition-Metal-Free: A Highly Efficient Catalytic Aerobic Alcohol Oxidation Process
journal, April 2004
- Liu, Renhua; Liang, Xinmiao; Dong, Chunyan
- Journal of the American Chemical Society, Vol. 126, Issue 13
Mechanism of Copper(I)/TEMPO-Catalyzed Aerobic Alcohol Oxidation
journal, January 2013
- Hoover, Jessica M.; Ryland, Bradford L.; Stahl, Shannon S.
- Journal of the American Chemical Society, Vol. 135, Issue 6
A Redox Fuel Cell That Operates with Methane as Fuel at 120 C
journal, September 1994
- Bergens, S. H.; Gorman, C. B.; Palmore, G. T. R.
- Science, Vol. 265, Issue 5177
The oxidative coupling of benzylic compounds catalyzed by 2,3-dichloro-5,6-dicyano-benzoquinone and sodium nitrite using molecular oxygen as a co-oxidant
journal, March 2015
- Cheng, Dongping; Yuan, Kun; Xu, Xiaoliang
- Tetrahedron Letters, Vol. 56, Issue 13