Cobalt and nickel selenide nanowalls anchored on graphene as bifunctional electrocatalysts for overall water splitting

2016 ◽  
Vol 4 (38) ◽  
pp. 14789-14795 ◽  
Author(s):  
Xiao Li ◽  
Li Zhang ◽  
Meirong Huang ◽  
Shuying Wang ◽  
Xinming Li ◽  
...  

Co and Ni based selenide nanowalls have been prepared on a conductive graphene coated nickel mesh substrate and used as electrocatalysts for hydrogen generation and oxygen evolution. The bifunctional nanowalls manifest a low driven voltage and high structural stability for overall water splitting.

Author(s):  
Yi Wei ◽  
Cheol-Hwan Shin ◽  
Gyan Barimah Caleb ◽  
Emmanuel Batsa Tetteh ◽  
Gisang Park ◽  
...  

Searching for low-cost and highly active bifunctional electrocatalysts toward hydrogen/oxygen evolution reactions is a grand challenge for water splitting hydrogen production. Herein, we prepare a trimetallic nickel, iron, and molybdenum...


RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 105814-105819 ◽  
Author(s):  
Julian A. Vigil ◽  
Timothy N. Lambert

Nanostructured cobalt phosphide-based films (Co-PP) were shown to be effective bifunctional electrocatalysts for the hydrogen and oxygen evolution reactions. A symmetrical alkaline electrolysis cell demonstrated low overpotential for water splitting.


2016 ◽  
Vol 4 (19) ◽  
pp. 7245-7250 ◽  
Author(s):  
Xiaolin Zhu ◽  
Cheng Tang ◽  
Hao-Fan Wang ◽  
Bo-Quan Li ◽  
Qiang Zhang ◽  
...  

Fully exposed ternary hydroxides electrodeposited on Ni foam (NiCoFe/NF) exhibited superb oxygen evolution and hydrogen evolution reactivity in alkaline media, and this monolithic-structured electrode further enabled a high-efficiency water electrolyzer.


2018 ◽  
Vol 6 (5) ◽  
pp. 2067-2072 ◽  
Author(s):  
Jia Liu ◽  
Jinsong Wang ◽  
Bao Zhang ◽  
Yunjun Ruan ◽  
Houzhao Wan ◽  
...  

Designing low-cost and highly efficient bifunctional electrocatalysts for compatible integration with the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) for overall water splitting is critical but challenging.


2021 ◽  
Author(s):  
Zewu Zhang ◽  
Shijia Li ◽  
Xiaohai Bu ◽  
Yifan Dai ◽  
Jingxi Wang ◽  
...  

The design and construction of noble-metal free electrocatalysts with high efficiency for both hydrogen and oxygen evolution reactions holds promise for advancing the production of H2 fuel through the overall...


2018 ◽  
Vol 11 (5) ◽  
pp. 1287-1298 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Chakadola Panda ◽  
Stefan Loos ◽  
Florian Bunschei-Bruns ◽  
Carsten Walter ◽  
...  

The mechanistically distinct and synergistic role of phosphite anions in hydrogen evolution and nickel cations in oxygen evolution have been uncovered for active and durable overall water splitting catalysis in nickel phosphite.


Author(s):  
Ziqiang Wang ◽  
Peng Wang ◽  
Hugang Zhang ◽  
Wenjing Tian ◽  
You Xu ◽  
...  

The design of efficient bifunctional catalysts for hydrogen and oxygen evolution reactions is significant for electrochemical water splitting. Here, hierarchical IrTe nanotubes (NTs) with assembled nanosheets have been prepared through...


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