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Title: Decoupling the roles of carbon and metal oxides on the electrocatalytic reduction of oxygen on La1-xSrxCoO3-δ perovskite composite electrodes

Journal Article · · Physical Chemistry Chemical Physics. PCCP
DOI:https://doi.org/10.1039/C8CP06268D· OSTI ID:1506782
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [5];  [1]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [2]
  1. Univ. of Texas, Austin, TX (United States). Dept. of Chemistry; Univ. of Texas, Austin, TX (United States). Center for Nano and Molecular Science and Technology
  2. Skolkovo Inst. of Science and Technology, Moscow (Russia). Center for Electrochemical Energy Storage CREI
  3. Univ. of Texas, Austin, TX (United States). Dept. of Chemistry
  4. Univ. of Texas, Austin, TX (United States). Dept. of Chemistry, and Center for Nano and Molecular Science and Technology, Texas Materials Inst.; Exponent Failure Analysis Associates, Natick, MA (United States)
  5. Skolkovo Inst. of Science and Technology, Moscow (Russia). Center for Electrochemical Energy Storage CREI; Univ. of Antwerp, Antwerp (Belgium)
  6. Univ. of Strasbourg, Strasbourg (France). Inst. de Chimie de Strasbourg
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  8. Univ. of Texas, Austin, TX (United States). Center for Nano and Molecular Science and Technology, Texas Materials Inst., and Dept. of Chemical Engineering

Perovskite oxides are active room-temperature bifunctional oxygen electrocatalysts in alkaline media, capable of performing the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) with lower combined overpotentials relative to their precious metal counterparts. However, their semiconducting nature necessitates the use of activated carbons as conductive supports to generate applicably relevant current densities. In efforts to advance the performance and theory of oxide electrocatalysts, the chemical and physical properties of the oxide material often take precedence over contributions from the conductive additive. In this work, we find that carbon plays an important synergistic role in improving the performance of La1-xSrxCoO3-δ (0 ≤ x ≤ 1) electrocatalysts through the activation of O2 and spillover of radical oxygen intermediates, HO2- and O2-, which is further reduced through chemical decomposition of HO2- on the perovskite surface. Here, through a combination of thin-film rotating disk electrochemical characterization of the hydrogen peroxide intermediate reactions (hydrogen peroxide reduction reaction (HPRR), hydrogen peroxide oxidation reaction (HPOR)) and oxygen reduction reaction (ORR), surface chemical analysis, HR-TEM, and microkinetic modeling on La1-xSrxCoO3-δ (0 ≤ x ≤ 1)/carbon (with nitrogen and non-nitrogen doped carbons) composite electrocatalysts, we deconvolute the mechanistic aspects and contributions to reactivity of the oxide and carbon support.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; F-1529; F-1319
OSTI ID:
1506782
Alternate ID(s):
OSTI ID: 1492463
Journal Information:
Physical Chemistry Chemical Physics. PCCP, Vol. 21, Issue 6; ISSN 1463-9076
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

References (55)

Investigation of epitaxial LaNiO3−x thin films by high-energy XPS journal October 2006
Electrocatalytic Activity of Transition Metal Oxide-Carbon Composites for Oxygen Reduction in Alkaline Batteries and Fuel Cells journal January 2013
A Bifunctional Nonprecious Metal Catalyst for Oxygen Reduction and Water Oxidation journal October 2010
Metal–air batteries: from oxygen reduction electrochemistry to cathode catalysts journal January 2012
Dual role of carbon in the catalytic layers of perovskite/carbon composites for the electrocatalytic oxygen reduction reaction journal July 2012
Single-step synthesis of nano-sized perovskite-type oxide/carbon nanotube composites and their electrocatalytic oxygen-reduction activities journal January 2011
Mechanism of oxygen evolution on perovskites journal July 1983
The Electrocatalysis of Oxygen Evolution on Perovskites journal January 1984
A review on air cathodes for zinc–air fuel cells journal March 2010
Electrocatalytic Activities of La0.6Ca0.4CoO3 and La0.6Ca0.4CoO3-Carbon Composites Toward the Oxygen Reduction Reaction in Concentrated Alkaline Electrolytes journal January 2011
Mechanistic studies of oxygen reduction at La0.6Ca0.4CoO3-activated carbon electrodes in a channel flow cell journal November 2000
An overview of metal oxide materials as electrocatalysts and supports for polymer electrolyte fuel cells journal January 2014
Pyridinic N doped graphene: synthesis, electronic structure, and electrocatalytic property journal January 2011
Thermal Treatment of La[sub 0.6]Ca[sub 0.4]CoO[sub 3] Perovskites for Bifunctional Air Electrodes journal January 1997
Superior Bifunctional Electrocatalytic Activity of Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ /Carbon Composite Electrodes: Insight into the Local Electronic Structure journal July 2015
Ammonia-Treated Ordered Mesoporous Carbons as Catalytic Materials for Oxygen Reduction Reaction journal April 2010
Water electrolysis on La1−xSrxCoO3−δ perovskite electrocatalysts journal March 2016
Oxygen Reduction on Platinum Low-Index Single-Crystal Surfaces in Alkaline Solution:  Rotating Ring Disk Pt( hkl ) Studies journal April 1996
Oxygen Reduction Reaction Activity of La-Based Perovskite Oxides in Alkaline Medium: A Thin-Film Rotating Ring-Disk Electrode Study journal February 2012
Composite Electrode Boosts the Activity of Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ Perovskite and Carbon toward Oxygen Reduction in Alkaline Media journal March 2014
Further insights into the role of carbon in manganese oxide/carbon composites in the oxygen reduction reaction in alkaline media journal August 2017
Effect of Nitrogen Concentration on Capacitance, Density of States, Electronic Conductivity, and Morphology of N-Doped Carbon Nanotube Electrodes journal October 2009
Covalent Hybrid of Spinel Manganese–Cobalt Oxide and Graphene as Advanced Oxygen Reduction Electrocatalysts journal February 2012
Oxygen electrocatalysts in metal–air batteries: from aqueous to nonaqueous electrolytes journal January 2014
Oxygen evolution on La1−xSrxMnO3 electrodes in alkaline solutions journal April 1979
Mechanistic Discussion of the Oxygen Reduction Reaction at Nitrogen-Doped Carbon Nanotubes journal September 2011
Low-cost Oxygen Electrode Material journal May 1970
Influence of the nature of the conduction band of transition metal oxides on catalytic activity for oxygen reduction journal October 1977
Synthesis and Activities of Rutile IrO 2 and RuO 2 Nanoparticles for Oxygen Evolution in Acid and Alkaline Solutions journal January 2012
Kinetic studies of the oxygen—peroxide couple on pyrolytic graphite journal June 1970
Chemical Structures and Performance of Perovskite Oxides journal July 2001
On the mechanism of enhanced oxygen reduction reaction in nitrogen-doped graphene nanoribbons journal January 2011
Electrocatalytic Oxygen Reduction Reaction on Perovskite Oxides: Series versus Direct Pathway journal May 2014
Study of Hydrogen Peroxide Reactions on Manganese Oxides as a Tool To Decode the Oxygen Reduction Reaction Mechanism journal August 2016
Catalytic Activity−d-Band Center Correlation for the O 2 Reduction Reaction on Platinum in Alkaline Solutions journal January 2007
Spillover in Heterogeneous Catalysis journal May 1995
Nanocarbon/oxide composite catalysts for bifunctional oxygen reduction and evolution in reversible alkaline fuel cells: A mini review journal January 2018
Electrocatalysis of Perovskites: The Influence of Carbon on the Oxygen Evolution Activity journal January 2015
Synthesis of efficient Vulcan–LaMnO3 perovskite nanocomposite for the oxygen reduction reaction journal January 2015
The Mechanism of Oxygen Reduction at a LaNiO 3 Electrode journal July 1978
Tuning the Electrocatalytic Activity of Perovskites through Active Site Variation and Support Interactions journal June 2014
High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction journal June 2015
Role of the Carbon Support on the Oxygen Reduction and Evolution Activities in LaNiO 3 Composite Electrodes in Alkaline Solution journal March 2018
Co3O4 nanocrystals on graphene as a synergistic catalyst for oxygen reduction reaction journal August 2011
Catalytic activity for electrochemical reduction of oxygen of lanthanum nickel oxide and related oxides journal June 1977
Recent progress and perspectives of bifunctional oxygen reduction/evolution catalyst development for regenerative anion exchange membrane fuel cells journal May 2018
Electrocatalysis of hydrogen peroxide reactions on perovskite oxides: experiment versus kinetic modeling journal January 2014
Oxygen Reduction Activity on Perovskite Oxide Surfaces: A Comparative First-Principles Study of LaMnO 3 , LaFeO 3 , and LaCrO 3 journal January 2013
Oxygen evolution on SrFeO3 electrode journal September 1979
Design principles for oxygen-reduction activity on perovskite oxide catalysts for fuel cells and metal–air batteries journal June 2011
Electrocatalytic properties of transition metal oxides for oxygen evolution reaction journal May 1986
Review of gas diffusion cathodes for alkaline fuel cells journal February 2009
Bi-Functional Oxygen Electrode Using Large Surface Area La[sub 1−x]Ca[sub x]CoO[sub 3] for Rechargeable Metal-Air Battery journal January 1990
Anion charge storage through oxygen intercalation in LaMnO3 perovskite pseudocapacitor electrodes journal June 2014
Ln 1 - x A x CoO 3 (Ln = Er, La; A = Ca, Sr)/Carbon Nanotube Composite Materials Applied for Rechargeable Zn/Air Batteries journal April 2002

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