Microwave-assisted synthesis of a nanoamorphous (Ni0.8,Fe0.2) oxide oxygen-evolving electrocatalyst containing only “fast” sites

2017 ◽  
Vol 5 (23) ◽  
pp. 11661-11670 ◽  
Author(s):  
Joseph M. Barforoush ◽  
Dylan T. Jantz ◽  
Tess E. Seuferling ◽  
Kelly R. Song ◽  
Laura C. Cummings ◽  
...  

Nickel–iron oxyhydroxides (Ni1−xFexOOH) are non-precious metal electrocatalysts for the oxygen evolution reaction (OER) that have high efficiency in alkaline media.

Author(s):  
Alessio Zuliani ◽  
Manuel Cano ◽  
Federica Calsolaro ◽  
Alain R. Puente Santiago ◽  
Juan J. Giner-Casares ◽  
...  

Microwave and ultrasound preparation of highly active OER electrodes derived from pinecones and having a low cobalt content is reported.


2019 ◽  
Vol 7 (21) ◽  
pp. 12974-12978 ◽  
Author(s):  
Munkhbayar Batmunkh ◽  
Munkhshur Myekhlai ◽  
Abdulaziz S. R. Bati ◽  
Susanne Sahlos ◽  
Ashley D. Slattery ◽  
...  

Black phosphorus quantum dots exhibit an impressive catalytic activity for oxygen evolution reaction.


2020 ◽  
Vol 117 (23) ◽  
pp. 12651-12656 ◽  
Author(s):  
Zhaoyu Jin ◽  
Allen J. Bard

We report an electrodeposition protocol for preparing isolated cobalt oxide single molecules (Co1Ox) and clusters (ConOy) on a carbon fiber nanoelectrode. The as-prepared deposits are able to produce well-defined steady-state voltammograms for the oxygen evolution reaction (OER) in alkaline media, where the equivalent radius (rd) is estimated by the limiting current of hydroxide oxidation in accordance with the electrocatalytic amplification model. The size of isolated clusters obtained from the femtomolar Co2+solution through an atom-by-atom technique can reach as small as 0.21 nm (rd) which is approximately the length of Co–O bond in cobalt oxide. Therefore, the deposit was close to that of a Co1Oxsingle molecule with only one cobalt ion, the minimum unit of the cobalt-based oxygen-evolving catalyst. Additionally, the size-dependent catalysis of the OER on ConOydeposits shows a faster relative rate on the smaller cluster in terms of the potential at a given current density, implying the single molecular catalyst shows a superior OER activity.


2019 ◽  
Vol 96 ◽  
pp. 105968 ◽  
Author(s):  
Qiang Li ◽  
Shuihua Tang ◽  
Zheng Tang ◽  
Qian Zhang ◽  
Weixiang Yang

Rare Metals ◽  
2021 ◽  
Vol 40 (5) ◽  
pp. 1048-1055
Author(s):  
Xue Ma ◽  
Xin-Yu Zhang ◽  
Min Yang ◽  
Jing-Yi Xie ◽  
Ren-Qing Lv ◽  
...  

2019 ◽  
Vol 3 (1) ◽  
pp. 237-244 ◽  
Author(s):  
Xueyan Xue ◽  
Feng Yu ◽  
Banghua Peng ◽  
Gang Wang ◽  
Yin Lv ◽  
...  

Layered double hydroxide materials with two-dimensional structures and rich diversity have proved to be very promising candidates for non-precious metal electrocatalysis of the oxygen evolution reaction.


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