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Origin of Surface Amorphization and Catalytic Stability of Ca 2–x IrO 4 Nanocrystals for Acidic Oxygen Evolution: Critical Roles of Acid Anions

Journal Article · · ACS Catalysis
 [1];  [2];  [3];  [1];  [1];  [1];  [1];  [1];  [4];  [1]
  1. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
  2. Department of Physics, National University of Singapore, Singapore 117542, Singapore
  3. MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, P. R. China
  4. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Not provided.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
OSTI ID:
2422616
Journal Information:
ACS Catalysis, Vol. 12, Issue 21; ISSN 2155-5435
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

References (27)

A highly active and stable IrO x /SrIrO 3 catalyst for the oxygen evolution reaction journal September 2016
Iridium-based double perovskites for efficient water oxidation in acid media journal August 2016
The stability number as a metric for electrocatalyst stability benchmarking journal June 2018
A unique oxygen ligand environment facilitates water oxidation in hole-doped IrNiOx core–shell electrocatalysts journal October 2018
The Stability Challenges of Oxygen Evolving Catalysts: Towards a Common Fundamental Understanding and Mitigation of Catalyst Degradation journal May 2017
Considerations for the scaling-up of water splitting catalysts journal May 2019
Recent Development of Oxygen Evolution Electrocatalysts in Acidic Environment journal March 2021
Recent Progress in Advanced Electrocatalyst Design for Acidic Oxygen Evolution Reaction journal March 2021
Efficient oxygen evolution electrocatalysis in acid by a perovskite with face-sharing IrO6 octahedral dimers journal December 2018
Exceptionally active iridium evolved from a pseudo-cubic perovskite for oxygen evolution in acid journal February 2019
Dissolution-Induced Surface Roughening and Oxygen Evolution Electrocatalysis of Alkaline-Earth Iridates in Acid journal December 2019
Constant Change: Exploring Dynamic Oxygen Evolution Reaction Catalysis and Material Transformations in Strontium Zinc Iridate Perovskite in Acid journal June 2021
Identification of the Active-Layer Structures for Acidic Oxygen Evolution from 9R-BaIrO3 Electrocatalyst with Enhanced Iridium Mass Activity journal October 2021
Discovery of crystal structure–stability correlation in iridates for oxygen evolution electrocatalysis in acid journal January 2020
Activation of surface oxygen sites on an iridium-based model catalyst for the oxygen evolution reaction journal December 2016
Electron Correlations Engineer Catalytic Activity of Pyrochlore Iridates for Acidic Water Oxidation journal December 2018
Efficient acidic oxygen evolution reaction electrocatalyzed by iridium-based 12L-perovskites comprising trinuclear face-shared IrO6 octahedral strings journal August 2020
A Dissolution/Precipitation Equilibrium on the Surface of Iridium‐Based Perovskites Controls Their Activity as Oxygen Evolution Reaction Catalysts in Acidic Media journal February 2019
Amorphization mechanism of SrIrO 3 electrocatalyst: How oxygen redox initiates ionic diffusion and structural reorganization journal January 2021
Understanding Degradation Mechanisms in SrIrO 3 Oxygen Evolution Electrocatalysts: Chemical and Structural Microscopy at the Nanoscale journal June 2021
Molecular Insight in Structure and Activity of Highly Efficient, Low-Ir Ir–Ni Oxide Catalysts for Electrochemical Water Splitting (OER) journal September 2015
XANES and EXAFS Studies on the Ir-O Bond Covalency in Ionic Iridium Perovskites journal August 1995
Lattice site–dependent metal leaching in perovskites toward a honeycomb-like water oxidation catalyst journal December 2021
The X-ray photoelectron spectra of Ir, IrO 2 and IrCl 3 revisited: The X-ray photoelectron spectra of Ir, IrO 2 and IrCl 3 revisited journal March 2017
Using Surface Segregation To Design Stable Ru-Ir Oxides for the Oxygen Evolution Reaction in Acidic Environments journal October 2014
Synthesis and Activities of Rutile IrO 2 and RuO 2 Nanoparticles for Oxygen Evolution in Acid and Alkaline Solutions journal January 2012
Electrolysis of water on oxide surfaces journal September 2007

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