Sequential Electrodeposition of Bifunctional Catalytically Active Structures in MoO 3 /Ni–NiO Composite Electrocatalysts for Selective Hydrogen and Oxygen Evolution

2020 ◽  
Vol 32 (39) ◽  
pp. 2003414 ◽  
Author(s):  
Xiaopeng Li ◽  
Yang Wang ◽  
Jiajun Wang ◽  
Yumin Da ◽  
Jinfeng Zhang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Active Structures ◽  
Catalytically Active

Unified structural motifs of the catalytically active state of Co(oxyhydr)oxides during the electrochemical oxygen evolution reaction

2018 ◽  
Vol 1 (9) ◽  
pp. 711-719 ◽  
Author(s):  
Arno Bergmann ◽  
Travis E. Jones ◽  
Elias Martinez Moreno ◽  
Detre Teschner ◽  
Petko Chernev ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active State ◽  
Structural Motifs ◽  
Catalytically Active ◽  
Electrochemical Oxygen

scholarly journals Direct 3D Printing of Catalytically Active Structures

ACS Catalysis ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 7567-7577 ◽  
Author(s):  
J. Sebastián Manzano ◽  
Zachary B. Weinstein ◽  
Aaron D. Sadow ◽  
Igor I. Slowing
Keyword(s):  
3D Printing ◽  
Active Structures ◽  
Catalytically Active

Activation of Catalytically Active Edge-Sharing Domains in Ca2FeCoO5 for Oxygen Evolution Reaction in Highly Alkaline Media

2019 ◽  
Vol 11 (32) ◽  
pp. 28823-28829 ◽  
Author(s):  
Damian Kowalski ◽  
Hisao Kiuchi ◽  
Teruki Motohashi ◽  
Yoshitaka Aoki ◽  
Hiroki Habazaki
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Active Edge ◽  
Catalytically Active

scholarly journals Reversible amorphization and the catalytically active state of crystalline Co3O4 during oxygen evolution

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Arno Bergmann ◽  
Elias Martinez-Moreno ◽  
Detre Teschner ◽  
Petko Chernev ◽  
Manuel Gliech ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Active State ◽  
Catalytically Active

Catalytically active structures of SiO2-supported Au nanoparticles in low-temperature CO oxidation

2013 ◽  
Vol 3 (3) ◽  
pp. 679-687 ◽  
Author(s):  
Kun Qian ◽  
Liangfeng Luo ◽  
Huizhi Bao ◽  
Qing Hua ◽  
Zhiquan Jiang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Au Nanoparticles ◽  
Active Structures ◽  
Catalytically Active ◽  
Low Temperature Co Oxidation

scholarly journals Modifying redox properties and local bonding of Co3O4 by CeO2 enhances oxygen evolution catalysis in acid

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jinzhen Huang ◽  
Hongyuan Sheng ◽  
R. Dominic Ross ◽  
Jiecai Han ◽  
Xianjie Wang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Redox Properties ◽  
Ex Situ ◽  
Reconstruction Process ◽  
Local Bonding ◽  
Catalytically Active ◽  
Earth Abundant

AbstractDeveloping efficient and stable earth-abundant electrocatalysts for acidic oxygen evolution reaction is the bottleneck for water splitting using proton exchange membrane electrolyzers. Here, we show that nanocrystalline CeO2 in a Co3O4/CeO2 nanocomposite can modify the redox properties of Co3O4 and enhances its intrinsic oxygen evolution reaction activity, and combine electrochemical and structural characterizations including kinetic isotope effect, pH- and temperature-dependence, in situ Raman and ex situ X-ray absorption spectroscopy analyses to understand the origin. The local bonding environment of Co3O4 can be modified after the introduction of nanocrystalline CeO2, which allows the CoIII species to be easily oxidized into catalytically active CoIV species, bypassing the potential-determining surface reconstruction process. Co3O4/CeO2 displays a comparable stability to Co3O4 thus breaks the activity/stability tradeoff. This work not only establishes an efficient earth-abundant catalysts for acidic oxygen evolution reaction, but also provides strategies for designing more active catalysts for other reactions.

Sign in / Sign up

Export Citation Format

Share Document