NiFeMo alloy inverse-opals on Ni foam as outstanding bifunctional catalysts for electrolytic water splitting of ultra-low cell voltages at high current densities

2020 ◽  
Vol 267 ◽  
pp. 118376 ◽  
Author(s):  
Cheng-Ting Hsieh ◽  
Chun-Lung Huang ◽  
Yu-An Chen ◽  
Shih-Yuan Lu
Keyword(s):  
Water Splitting ◽  
Bifunctional Catalysts ◽  
High Current ◽  
Ni Foam ◽  
Inverse Opals ◽  
Current Densities

scholarly journals CoFe–OH Double Hydroxide Films Electrodeposited on Ni-Foam as Electrocatalyst for the Oxygen Evolution Reaction

2020 ◽  
Vol 234 (5) ◽  
pp. 995-1019 ◽  
Author(s):  
Kirill Sliozberg ◽  
Yauhen Aniskevich ◽  
Ugur Kayran ◽  
Justus Masa ◽  
Wolfgang Schuhmann
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Current ◽  
Ni Foam ◽  
Active Electrode ◽  
Catalyst Film ◽  
Cobalt Iron ◽  
Electrochemically Deposited ◽  
Current Densities ◽  
Double Hydroxide

AbstractCobalt-iron double hydroxide (CoFe–OH) films were electrochemically deposited on 3D Ni foam electrodes for the oxygen evolution reaction (OER). The dependence of the OER activity on film composition and thickness was evaluated, which revealed an optimal Fe:Co ratio of about 1:2.33. The composition of the catalyst film was observed to vary with film thickness. The electrodeposition parameters were carefully controlled to yield microstructured Ni-foam decorated with CoFe–OH films of controlled thickness and composition. The most active electrode exhibited an overpotential as low as 360 mV OER at an industrial scale current density of 400 mA cm−2 that remained stable for at least 320 h. This work contributes towards the fabrication of practical electrodes with the focus on the development of stable electrodes for electrocatalytic oxygen evolution at high current densities.

scholarly journals Photocharged BiVO4 photoanodes for improved solar water splitting

2016 ◽  
Vol 4 (8) ◽  
pp. 2919-2926 ◽  
Author(s):  
Bartek J. Trześniewski ◽  
Wilson A. Smith
Keyword(s):  
Water Splitting ◽  
Open Circuit ◽  
High Current ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Current Densities

Long exposure of BiVO4 photoanodes to light under open circuit conditions (photocharging) results in the record high current densities for undoped and uncatalyzed BiVO4.

Boosting Activity on Co 4 N Porous Nanosheet by Coupling CeO 2 for Efficient Electrochemical Overall Water Splitting at High Current Densities

2020 ◽  
Vol 30 (32) ◽  
pp. 1910596 ◽  
Author(s):  
Hongming Sun ◽  
Caiying Tian ◽  
Guilan Fan ◽  
Jianing Qi ◽  
Ziting Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Current ◽  
Overall Water Splitting ◽  
Current Densities

Layer-structured FeCo bihydroxide as an ultra-stable bifunctional electrocatalyst for water splitting at high current densities

2021 ◽  
Author(s):  
Chaoyang Sun ◽  
Hui Wang ◽  
Shan Ji ◽  
Xuyun Wang ◽  
Vladimir Linkov ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
High Stability ◽  
High Current Density ◽  
High Current ◽  
Bifunctional Electrocatalyst ◽  
Current Densities ◽  
Double Hydroxide

A layered FeCo double hydroxide bifunctional water cracking electrocatalyst with ultra-high stability at high current density was developed.

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