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Title: Electrochemical trapping of metastable Mn 3+ ions for activation of MnO 2 oxygen evolution catalysts

Abstract

Electrodeposited manganese oxide films are promising catalysts for promoting the oxygen evolution reaction (OER), especially in acidic solutions. The activity of these catalysts is known to be enhanced by the introduction of Mn 3+ . We present in situ electrochemical and X-ray absorption spectroscopic studies, which reveal that Mn 3+ may be introduced into MnO 2 by an electrochemically induced comproportionation reaction with Mn 2+ and that Mn 3+ persists in OER active films. Extended X-ray absorption fine structure (EXAFS) spectra of the Mn 3+ -activated films indicate a decrease in the Mn–O coordination number, and Raman microspectroscopy reveals the presence of distorted Mn–O environments. Computational studies show that Mn 3+ is kinetically trapped in tetrahedral sites and in a fully oxidized structure, consistent with the reduction of coordination number observed in EXAFS. Although in a reduced state, computation shows that Mn 3+ states are stabilized relative to those of oxygen and that the highest occupied molecular orbital (HOMO) is thus dominated by oxygen states. Furthermore, the Mn 3+ (T d ) induces local strain on the oxide sublattice as observed in Raman spectra and results in a reduced gap between the HOMO and the lowest unoccupied molecular orbital (LUMO).more » The confluence of a reduced HOMO–LUMO gap and oxygen-based HOMO results in the facilitation of OER on the application of anodic potentials to the δ-MnO 2 polymorph incorporating Mn 3+ ions.« less

Authors:
; ; ; ; ; ; ; ; ORCiD logo
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Next Generation of Materials by Design: Incorporating Metastability (CNGMD); SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1438083
Alternate Identifier(s):
OSTI ID: 1458415; OSTI ID: 1485097
Grant/Contract Number:  
AC36-08GO28308; AC02-76SF00515; 1541959; AC02-05CH11231
Resource Type:
Journal Article: Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 115 Journal Issue: 23; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; manganese oxide; polymorph; water splitting; catalysis; renewable energy storage

Citation Formats

Morgan Chan, Zamyla, Kitchaev, Daniil A., Nelson Weker, Johanna, Schnedermann, Christoph, Lim, Kipil, Ceder, Gerbrand, Tumas, William, Toney, Michael F., and Nocera, Daniel G. Electrochemical trapping of metastable Mn 3+ ions for activation of MnO 2 oxygen evolution catalysts. United States: N. p., 2018. Web. doi:10.1073/pnas.1722235115.
Morgan Chan, Zamyla, Kitchaev, Daniil A., Nelson Weker, Johanna, Schnedermann, Christoph, Lim, Kipil, Ceder, Gerbrand, Tumas, William, Toney, Michael F., & Nocera, Daniel G. Electrochemical trapping of metastable Mn 3+ ions for activation of MnO 2 oxygen evolution catalysts. United States. doi:10.1073/pnas.1722235115.
Morgan Chan, Zamyla, Kitchaev, Daniil A., Nelson Weker, Johanna, Schnedermann, Christoph, Lim, Kipil, Ceder, Gerbrand, Tumas, William, Toney, Michael F., and Nocera, Daniel G. Mon . "Electrochemical trapping of metastable Mn 3+ ions for activation of MnO 2 oxygen evolution catalysts". United States. doi:10.1073/pnas.1722235115.
@article{osti_1438083,
title = {Electrochemical trapping of metastable Mn 3+ ions for activation of MnO 2 oxygen evolution catalysts},
author = {Morgan Chan, Zamyla and Kitchaev, Daniil A. and Nelson Weker, Johanna and Schnedermann, Christoph and Lim, Kipil and Ceder, Gerbrand and Tumas, William and Toney, Michael F. and Nocera, Daniel G.},
abstractNote = {Electrodeposited manganese oxide films are promising catalysts for promoting the oxygen evolution reaction (OER), especially in acidic solutions. The activity of these catalysts is known to be enhanced by the introduction of Mn 3+ . We present in situ electrochemical and X-ray absorption spectroscopic studies, which reveal that Mn 3+ may be introduced into MnO 2 by an electrochemically induced comproportionation reaction with Mn 2+ and that Mn 3+ persists in OER active films. Extended X-ray absorption fine structure (EXAFS) spectra of the Mn 3+ -activated films indicate a decrease in the Mn–O coordination number, and Raman microspectroscopy reveals the presence of distorted Mn–O environments. Computational studies show that Mn 3+ is kinetically trapped in tetrahedral sites and in a fully oxidized structure, consistent with the reduction of coordination number observed in EXAFS. Although in a reduced state, computation shows that Mn 3+ states are stabilized relative to those of oxygen and that the highest occupied molecular orbital (HOMO) is thus dominated by oxygen states. Furthermore, the Mn 3+ (T d ) induces local strain on the oxide sublattice as observed in Raman spectra and results in a reduced gap between the HOMO and the lowest unoccupied molecular orbital (LUMO). The confluence of a reduced HOMO–LUMO gap and oxygen-based HOMO results in the facilitation of OER on the application of anodic potentials to the δ-MnO 2 polymorph incorporating Mn 3+ ions.},
doi = {10.1073/pnas.1722235115},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
issn = {0027-8424},
number = 23,
volume = 115,
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1073/pnas.1722235115

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Cited by: 12 works
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Figures / Tables:

Fig. 1 Fig. 1: CVs of a 1-cm2 FTO electrode in 0.5 mM Mn2+ and 0.9 M KNO3 solution at 100-mV/s scan rate showing the first (red line) and second (blue line) cycles for (A) the as-deposited δ-MnO2 and (B) the as-deposited film activated via the incorporation of Mn3+ ions by themore » comproportionation reaction (Eq. 4). A–D indicate the waves discussed in the text.« less

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Works referenced in this record:

Charge self-regulation upon changing the oxidation state of transition metals in insulators
journal, June 2008

  • Raebiger, Hannes; Lany, Stephan; Zunger, Alex
  • Nature, Vol. 453, Issue 7196
  • DOI: 10.1038/nature07009

Reversible anionic redox chemistry in high-capacity layered-oxide electrodes
journal, July 2013

  • Sathiya, M.; Rousse, G.; Ramesha, K.
  • Nature Materials, Vol. 12, Issue 9
  • DOI: 10.1038/nmat3699

ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT
journal, June 2005


Generalized Gradient Approximation Made Simple
journal, October 1996

  • Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
  • Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
  • DOI: 10.1103/PhysRevLett.77.3865

Multielectron, multisubstrate molecular catalysis of electrochemical reactions: Formal kinetic analysis in the total catalysis regime
journal, October 2017

  • Costentin, Cyrille; Nocera, Daniel G.; Brodsky, Casey N.
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 43
  • DOI: 10.1073/pnas.1711129114

Photochemical Water Oxidation by Crystalline Polymorphs of Manganese Oxides: Structural Requirements for Catalysis
journal, February 2013

  • Robinson, David M.; Go, Yong Bok; Mui, Michelle
  • Journal of the American Chemical Society, Vol. 135, Issue 9
  • DOI: 10.1021/ja310286h

Powering the planet: Chemical challenges in solar energy utilization
journal, October 2006

  • Lewis, N. S.; Nocera, D. G.
  • Proceedings of the National Academy of Sciences, Vol. 103, Issue 43, p. 15729-15735
  • DOI: 10.1073/pnas.0603395103

Characterization of Hausmannite Mn[sub 3]O[sub 4] Thin Films by Chemical Bath Deposition
journal, January 2005

  • Xu, HaiYan; Xu, SiLe; Wang, Hao
  • Journal of The Electrochemical Society, Vol. 152, Issue 12
  • DOI: 10.1149/1.2098267

Hybrid functionals based on a screened Coulomb potential
journal, May 2003

  • Heyd, Jochen; Scuseria, Gustavo E.; Ernzerhof, Matthias
  • The Journal of Chemical Physics, Vol. 118, Issue 18
  • DOI: 10.1063/1.1564060

Electrosynthesis, functional, and structural characterization of a water-oxidizing manganese oxide
journal, January 2012

  • Zaharieva, Ivelina; Chernev, Petko; Risch, Marcel
  • Energy & Environmental Science, Vol. 5, Issue 5
  • DOI: 10.1039/c2ee21191b

A pre-edge analysis of Mn K-edge XANES spectra to help determine the speciation of manganese in minerals and glasses
journal, July 2008

  • Chalmin, E.; Farges, F.; Brown, G. E.
  • Contributions to Mineralogy and Petrology, Vol. 157, Issue 1
  • DOI: 10.1007/s00410-008-0323-z

Reversible Mn2+/Mn4+ double redox in lithium-excess cathode materials
journal, April 2018


Nickel-borate oxygen-evolving catalyst that functions under benign conditions
journal, May 2010

  • Dinca, M.; Surendranath, Y.; Nocera, D. G.
  • Proceedings of the National Academy of Sciences, Vol. 107, Issue 23
  • DOI: 10.1073/pnas.1001859107

Tracking Catalyst Redox States and Reaction Dynamics in Ni–Fe Oxyhydroxide Oxygen Evolution Reaction Electrocatalysts: The Role of Catalyst Support and Electrolyte pH
journal, January 2017

  • Görlin, Mikaela; Ferreira de Araújo, Jorge; Schmies, Henrike
  • Journal of the American Chemical Society, Vol. 139, Issue 5
  • DOI: 10.1021/jacs.6b12250

Time-resolved observations of water oxidation intermediates on a cobalt oxide nanoparticle catalyst
journal, February 2014

  • Zhang, Miao; de Respinis, Moreno; Frei, Heinz
  • Nature Chemistry, Vol. 6, Issue 4
  • DOI: 10.1038/nchem.1874

The structural and chemical origin of the oxygen redox activity in layered and cation-disordered Li-excess cathode materials
journal, May 2016

  • Seo, Dong-Hwa; Lee, Jinhyuk; Urban, Alexander
  • Nature Chemistry, Vol. 8, Issue 7
  • DOI: 10.1038/nchem.2524

A Functionally Stable Manganese Oxide Oxygen Evolution Catalyst in Acid
journal, April 2014

  • Huynh, Michael; Bediako, D. Kwabena; Nocera, Daniel G.
  • Journal of the American Chemical Society, Vol. 136, Issue 16
  • DOI: 10.1021/ja413147e

Proton-Coupled Electron Transfer
journal, April 2012

  • Weinberg, David R.; Gagliardi, Christopher J.; Hull, Jonathan F.
  • Chemical Reviews, Vol. 112, Issue 7
  • DOI: 10.1021/cr200177j

From ultrasoft pseudopotentials to the projector augmented-wave method
journal, January 1999


Nano-size layered manganese–calcium oxide as an efficient and biomimetic catalyst for water oxidation under acidic conditions: comparable to platinum
journal, January 2013

  • Najafpour, Mohammad Mahdi; Leonard, Kevin C.; Fan, Fu-Ren F.
  • Dalton Transactions, Vol. 42, Issue 14
  • DOI: 10.1039/c3dt32864c

The intriguing question of anionic redox in high-energy density cathodes for Li-ion batteries
journal, January 2016

  • Saubanère, M.; McCalla, E.; Tarascon, J. -M.
  • Energy & Environmental Science, Vol. 9, Issue 3
  • DOI: 10.1039/C5EE03048J

Electron correlation in semiconductors and insulators: Band gaps and quasiparticle energies
journal, October 1986


Nature of Activated Manganese Oxide for Oxygen Evolution
journal, November 2015

  • Huynh, Michael; Shi, Chenyang; Billinge, Simon J. L.
  • Journal of the American Chemical Society, Vol. 137, Issue 47
  • DOI: 10.1021/jacs.5b06382

Active Mixed-Valent MnO x Water Oxidation Catalysts through Partial Oxidation (Corrosion) of Nanostructured MnO Particles
journal, October 2013

  • Indra, Arindam; Menezes, Prashanth W.; Zaharieva, Ivelina
  • Angewandte Chemie International Edition, Vol. 52, Issue 50
  • DOI: 10.1002/anie.201307543

New developments in the Inorganic Crystal Structure Database (ICSD): accessibility in support of materials research and design
journal, May 2002

  • Belsky, Alec; Hellenbrandt, Mariette; Karen, Vicky Lynn
  • Acta Crystallographica Section B Structural Science, Vol. 58, Issue 3
  • DOI: 10.1107/S0108768102006948

Energetics of MnO 2 polymorphs in density functional theory
journal, January 2016


Layered-to-Spinel Phase Transition in Li[sub x]MnO[sub 2]
journal, January 2001

  • Reed, J.; Ceder, G.; Van Der Ven, A.
  • Electrochemical and Solid-State Letters, Vol. 4, Issue 6
  • DOI: 10.1149/1.1368896

In Situ X-ray Absorption Spectroscopy Investigation of a Bifunctional Manganese Oxide Catalyst with High Activity for Electrochemical Water Oxidation and Oxygen Reduction
journal, June 2013

  • Gorlin, Yelena; Lassalle-Kaiser, Benedikt; Benck, Jesse D.
  • Journal of the American Chemical Society, Vol. 135, Issue 23
  • DOI: 10.1021/ja3104632

In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co2+
journal, August 2008


Opportunities and challenges for a sustainable energy future
journal, August 2012

  • Chu, Steven; Majumdar, Arun
  • Nature, Vol. 488, Issue 7411, p. 294-303
  • DOI: 10.1038/nature11475

Solar Energy Supply and Storage for the Legacy and Nonlegacy Worlds
journal, November 2010

  • Cook, Timothy R.; Dogutan, Dilek K.; Reece, Steven Y.
  • Chemical Reviews, Vol. 110, Issue 11
  • DOI: 10.1021/cr100246c

Phase evolution of an alpha MnO 2 -based electrode for pseudo-capacitors probed by in operando Raman spectroscopy
journal, October 2014


Low pH Electrolytic Water Splitting Using Earth-Abundant Metastable Catalysts That Self-Assemble in Situ
journal, February 2014

  • Bloor, Leanne G.; Molina, Pedro I.; Symes, Mark D.
  • Journal of the American Chemical Society, Vol. 136, Issue 8
  • DOI: 10.1021/ja5003197

Activating lattice oxygen redox reactions in metal oxides to catalyse oxygen evolution
journal, January 2017

  • Grimaud, Alexis; Diaz-Morales, Oscar; Han, Binghong
  • Nature Chemistry, Vol. 9, Issue 5
  • DOI: 10.1038/nchem.2695

Facile synthesis and optical band gap calculation of Mn3O4 nanoparticles
journal, December 2012


Probing the Charge Storage Mechanism of a Pseudocapacitive MnO 2 Electrode Using in Operando Raman Spectroscopy
journal, September 2015


Spectroscopic studies of the local structure in positive electrodes for lithium batteries
journal, July 2002

  • Julien, C.; Massot, M.
  • Physical Chemistry Chemical Physics, Vol. 4, Issue 17
  • DOI: 10.1039/b203361e

Charge-compensation in 3d-transition-metal-oxide intercalation cathodes through the generation of localized electron holes on oxygen
journal, March 2016

  • Luo, Kun; Roberts, Matthew R.; Hao, Rong
  • Nature Chemistry, Vol. 8, Issue 7
  • DOI: 10.1038/nchem.2471

Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
journal, July 1996


Lattice vibrations of manganese oxides
journal, February 2004

  • Julien, C. M.; Massot, M.; Poinsignon, C.
  • Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 60, Issue 3
  • DOI: 10.1016/S1386-1425(03)00279-8

Reversible phase transformation of MnO 2 nanosheets in an electrochemical capacitor investigated by in situRaman spectroscopy
journal, January 2011

  • Hsu, Yu-Kuei; Chen, Ying-Chu; Lin, Yan-Gu
  • Chem. Commun., Vol. 47, Issue 4
  • DOI: 10.1039/C0CC03902K

Mechanisms of pH-Dependent Activity for Water Oxidation to Molecular Oxygen by MnO 2 Electrocatalysts
journal, January 2012

  • Takashima, Toshihiro; Hashimoto, Kazuhito; Nakamura, Ryuhei
  • Journal of the American Chemical Society, Vol. 134, Issue 3
  • DOI: 10.1021/ja206511w

Nucleation and Growth Mechanisms of an Electrodeposited Manganese Oxide Oxygen Evolution Catalyst
journal, April 2014

  • Huynh, Michael; Bediako, D. Kwabena; Liu, Yi
  • The Journal of Physical Chemistry C, Vol. 118, Issue 30
  • DOI: 10.1021/jp501768n

Water Oxidation by Amorphous Cobalt-Based Oxides: Volume Activity and Proton Transfer to Electrolyte Bases
journal, January 2014

  • Klingan, Katharina; Ringleb, Franziska; Zaharieva, Ivelina
  • ChemSusChem, Vol. 7, Issue 5
  • DOI: 10.1002/cssc.201301019

n -type doping of CuIn Se 2 and CuGa Se 2
journal, July 2005


cis,cis -[(bpy) 2 Ru V O] 2 O 4+ Catalyzes Water Oxidation Formally via in Situ Generation of Radicaloid Ru IV −O•
journal, June 2006

  • Yang, Xiaofan; Baik, Mu-Hyun
  • Journal of the American Chemical Society, Vol. 128, Issue 23
  • DOI: 10.1021/ja053710j

Mechanistic Studies of the Oxygen Evolution Reaction by a Cobalt-Phosphate Catalyst at Neutral pH
journal, November 2010

  • Surendranath, Yogesh; Kanan, Matthew W.; Nocera, Daniel G.
  • Journal of the American Chemical Society, Vol. 132, Issue 46
  • DOI: 10.1021/ja106102b

Toward an Active and Stable Catalyst for Oxygen Evolution in Acidic Media: Ti-Stabilized MnO 2
journal, August 2015

  • Frydendal, Rasmus; Paoli, Elisa A.; Chorkendorff, Ib
  • Advanced Energy Materials, Vol. 5, Issue 22
  • DOI: 10.1002/aenm.201500991

Thermodynamics of Phase Selection in MnO 2 Framework Structures through Alkali Intercalation and Hydration
journal, February 2017

  • Kitchaev, Daniil A.; Dacek, Stephen T.; Sun, Wenhao
  • Journal of the American Chemical Society, Vol. 139, Issue 7
  • DOI: 10.1021/jacs.6b11301

A manganese oxide with phenol groups as a promising structural model for water oxidizing complex in Photosystem II: a ‘golden fish’
journal, January 2012

  • Najafpour, Mohammad Mahdi; Tabrizi, Mahmoud Amouzadeh; Haghighi, Behzad
  • Dalton Transactions, Vol. 41, Issue 14
  • DOI: 10.1039/c2dt11672c

Electrolyte-Dependent Electrosynthesis and Activity of Cobalt-Based Water Oxidation Catalysts
journal, February 2009

  • Surendranath, Yogesh; Dincǎ, Mircea; Nocera, Daniel G.
  • Journal of the American Chemical Society, Vol. 131, Issue 7
  • DOI: 10.1021/ja807769r

Electrochemical Synthesis of Photoelectrodes and Catalysts for Use in Solar Water Splitting
journal, August 2015


Band-structure calculations for the 3 d transition metal oxides in G W
journal, February 2013


The Catalysis of the Oxygen Evolution Reaction by Iron Impurities in Thin Film Nickel Oxide Electrodes
journal, January 1987

  • Corrigan, Dennis A.
  • Journal of The Electrochemical Society, Vol. 134, Issue 2
  • DOI: 10.1149/1.2100463

In situ characterization of cofacial Co(IV) centers in Co 4 O 4 cubane: Modeling the high-valent active site in oxygen-evolving catalysts
journal, March 2017

  • Brodsky, Casey N.; Hadt, Ryan G.; Hayes, Dugan
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 15
  • DOI: 10.1073/pnas.1701816114

Mechanistic Investigation of Water Oxidation Catalyzed by Uniform, Assembled MnO Nanoparticles
journal, February 2017

  • Jin, Kyoungsuk; Seo, Hongmin; Hayashi, Toru
  • Journal of the American Chemical Society, Vol. 139, Issue 6
  • DOI: 10.1021/jacs.6b10657

Electrochemical Water Oxidation with Cobalt-Based Electrocatalysts from pH 0–14: The Thermodynamic Basis for Catalyst Structure, Stability, and Activity
journal, August 2011

  • Gerken, James B.; McAlpin, J. Gregory; Chen, Jamie Y. C.
  • Journal of the American Chemical Society, Vol. 133, Issue 36
  • DOI: 10.1021/ja205647m

Theory of Proton-Coupled Electron Transfer in Energy Conversion Processes
journal, December 2009

  • Hammes-Schiffer, Sharon
  • Accounts of Chemical Research, Vol. 42, Issue 12
  • DOI: 10.1021/ar9001284

Nickel–Iron Oxyhydroxide Oxygen-Evolution Electrocatalysts: The Role of Intentional and Incidental Iron Incorporation
journal, April 2014

  • Trotochaud, Lena; Young, Samantha L.; Ranney, James K.
  • Journal of the American Chemical Society, Vol. 136, Issue 18
  • DOI: 10.1021/ja502379c

On the future of global energy
journal, October 2006


The anodic characteristics of massive manganese oxide electrode
journal, April 1979


Inhibition of Charge Disproportionation of MnO 2 Electrocatalysts for Efficient Water Oxidation under Neutral Conditions
journal, October 2012

  • Takashima, Toshihiro; Hashimoto, Kazuhito; Nakamura, Ryuhei
  • Journal of the American Chemical Society, Vol. 134, Issue 44
  • DOI: 10.1021/ja306499n

First row transition metal catalysts for solar-driven water oxidation produced by electrodeposition
journal, January 2016

  • Roger, Isolda; Symes, Mark D.
  • Journal of Materials Chemistry A, Vol. 4, Issue 18
  • DOI: 10.1039/C5TA09423B

Mechanistic Studies of the Oxygen Evolution Reaction Mediated by a Nickel–Borate Thin Film Electrocatalyst
journal, February 2013

  • Bediako, D. Kwabena; Surendranath, Yogesh; Nocera, Daniel G.
  • Journal of the American Chemical Society, Vol. 135, Issue 9
  • DOI: 10.1021/ja3126432

Water Oxidation Mechanism for 3d Transition Metal Oxide Catalysts under Neutral Condition
journal, January 2017

  • Seo, Hongmin; Cho, Kang Hee; Ha, Heonjin
  • Journal of the Korean Ceramic Society, Vol. 54, Issue 1
  • DOI: 10.4191/kcers.2017.54.1.12

On the Mechanism of Crystal Water Insertion during Anomalous Spinel-to- Birnessite Phase Transition
journal, July 2016


Direct-Coupling O 2 Bond Forming a Pathway in Cobalt Oxide Water Oxidation Catalysts
journal, August 2011

  • Wang, Lee-Ping; Van Voorhis, Troy
  • The Journal of Physical Chemistry Letters, Vol. 2, Issue 17
  • DOI: 10.1021/jz201021n

Influence of iron doping on tetravalent nickel content in catalytic oxygen evolving films
journal, January 2017

  • Li, Nancy; Bediako, D. Kwabena; Hadt, Ryan G.
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 7
  • DOI: 10.1073/pnas.1620787114

Parallel Electrochemical Treatment System and Application for Identifying Acid-Stable Oxygen Evolution Electrocatalysts
journal, January 2015

  • Jones, Ryan J. R.; Shinde, Aniketa; Guevarra, Dan
  • ACS Combinatorial Science, Vol. 17, Issue 2
  • DOI: 10.1021/co500148p

Electrochemical Synthesis of Metal Oxides and Hydroxides
journal, May 2000

  • Therese, G. Helen Annal; Kamath, P. Vishnu
  • Chemistry of Materials, Vol. 12, Issue 5
  • DOI: 10.1021/cm990447a

Raman spectra of birnessite manganese dioxides
journal, April 2003


A novel chemical synthesis of interlocked cubes of hausmannite Mn3O4 thin films for supercapacitor application
journal, September 2009


Promoting the Activity of Catalysts for the Oxidation of Water with Bridged Dinuclear Ruthenium Complexes
journal, February 2013

  • Jiang, Yi; Li, Fei; Zhang, Biaobiao
  • Angewandte Chemie International Edition, Vol. 52, Issue 12
  • DOI: 10.1002/anie.201209045

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