Ordering and Phase Control in Epitaxial Double-Perovskite Catalysts for the Oxygen Evolution Reaction

ACS Catalysis ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 7029-7037 ◽  
Author(s):  
Felix Gunkel ◽  
Lei Jin ◽  
David N. Mueller ◽  
Clemens Hausner ◽  
Daniel S. Bick ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Perovskite ◽  
Phase Control ◽  
Perovskite Catalysts

scholarly journals Improving the Activity for Oxygen Evolution Reaction by Tailoring Oxygen Defects in Double Perovskite Oxides

2019 ◽  
Vol 29 (34) ◽  
pp. 1901783 ◽  
Author(s):  
Yunmin Zhu ◽  
Lei Zhang ◽  
Bote Zhao ◽  
Huijun Chen ◽  
Xi Liu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Perovskite ◽  
Perovskite Oxides ◽  
Oxygen Defects

Smart Control of Composition for Double Perovskite Electrocatalysts toward Enhanced Oxygen Evolution Reaction

ChemSusChem ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 5111-5116 ◽  
Author(s):  
Hainan Sun ◽  
Xiaomin Xu ◽  
Gao Chen ◽  
Yupeng Zhou ◽  
Hong‐Ji Lin ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Perovskite ◽  
Smart Control

scholarly journals Fe-Doping in Double Perovskite PrBaCo2(1-x)Fe2xO6-δ: Insights into Structural and Electronic Effects to Enhance Oxygen Evolution Catalyst Stability

Catalysts ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 263 ◽  
Author(s):  
Bae-Jung Kim ◽  
Emiliana Fabbri ◽  
Ivano Castelli ◽  
Mario Borlaf ◽  
Thomas Graule ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Perovskite ◽  
Alkaline Media ◽  
Catalyst Stability ◽  
Electronic Effects ◽  
Single Transition ◽  
Charge Stability ◽  
X Ray Absorption

Perovskite oxides have been gaining attention for its capability to be designed as an ideal electrocatalyst for oxygen evolution reaction (OER). Among promising candidates, the layered double perovskite—PrBaCo2O6-δ (PBC)—has been identified as the most active perovskite electrocatalyst for OER in alkaline media. For a single transition metal oxide catalyst, the addition of Fe enhances its electrocatalytic performance towards OER. To understand the role of Fe, herein, Fe is incorporated in PBC in different ratios, which yielded PrBaCo2(1-x)Fe2xCo6-δ (x = 0, 0.2 and 0.5). Fe-doped PBCF’s demonstrate enhanced OER activities and stabilities. Operando X-ray absorption spectroscopy (XAS) revealed that Co is more stable in a lower oxidation state upon Fe incorporation by establishing charge stability. Hence, the degradation of Co is inhibited such that the perovskite structure is prolonged under the OER conditions, which allows it to serve as a platform for the oxy(hydroxide) layer formation. Overall, our findings underline synergetic effects of incorporating Fe into Co-based layered double perovskite in achieving a higher activity and stability during oxygen evolution reaction.

Ultrahigh-performance tungsten-doped perovskites for the oxygen evolution reaction

2018 ◽  
Vol 6 (21) ◽  
pp. 9854-9859 ◽  
Author(s):  
Gao Chen ◽  
Zhiwei Hu ◽  
Yanping Zhu ◽  
Zhi-Gang Chen ◽  
Yijun Zhong ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Perovskite ◽  
Highly Efficient ◽  
Materials Genome

Based on the materials genome strategy, a novel B-site cation ordered double perovskite SrCo0.4Fe0.2W0.4O3−δ has been designed as a highly efficient OER catalyst.

A New Family of Perovskite Catalysts for Oxygen-Evolution Reaction in Alkaline Media: BaNiO3 and BaNi0.83O2.5

2016 ◽  
Vol 138 (10) ◽  
pp. 3541-3547 ◽  
Author(s):  
Jin Goo Lee ◽  
Jeemin Hwang ◽  
Ho Jung Hwang ◽  
Ok Sung Jeon ◽  
Jeongseok Jang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
New Family ◽  
Perovskite Catalysts

scholarly journals Cover Feature: Smart Control of Composition for Double Perovskite Electrocatalysts toward Enhanced Oxygen Evolution Reaction (ChemSusChem 23/2019)

ChemSusChem ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 5061-5061
Author(s):  
Hainan Sun ◽  
Xiaomin Xu ◽  
Gao Chen ◽  
Yupeng Zhou ◽  
Hong‐Ji Lin ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Perovskite ◽  
Smart Control
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