Highly efficient overall water splitting over a porous interconnected network by nickel cobalt oxysulfide interfacial assembled Cu@Cu2S nanowires

2020 ◽  
Vol 8 (29) ◽  
pp. 14746-14756
Author(s):  
Duy Thanh Tran ◽  
Van Hien Hoa ◽  
Huu Tuan Le ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Water Splitting ◽  
Alkaline Medium ◽  
Nanowire Arrays ◽  
Interconnected Network ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Nickel Cobalt

A highly efficient electrocatalyst based on nickel cobalt oxysulfide interfacial assembled Cu@Cu2S nanowire arrays was constructed for simultaneously accelerating HER and OER in alkaline medium.

Self-supported nickel–cobalt nanowires as highly efficient and stable electrocatalysts for overall water splitting

Nanoscale ◽  
2018 ◽  
Vol 10 (39) ◽  
pp. 18767-18773 ◽  
Author(s):  
Hui Xu ◽  
Jingjing Wei ◽  
Min Zhang ◽  
Jin Wang ◽  
Yukihide Shiraishi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Low Voltage ◽  
Water Electrolysis ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Cobalt Nanowires ◽  
Nickel Cobalt

The Ni1Co1O2 NWs//Ni1Co1P NWs couple is highly active and stable for overall water electrolysis with a low voltage of 1.58 V at 10 mA cm−2, showing extraordinary promise for practical overall water splitting electrolysis.

Construction of a hierarchically structured, NiCo-Cu-based trifunctional electrocatalyst for efficient overall water splitting and 5-hydroxymethylfurfural oxidation

2021 ◽  
Author(s):  
Ruijuan Zheng ◽  
Chenhao Zhao ◽  
Jinhua Xiong ◽  
Xue Teng ◽  
Wu-Hua Chen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Three Dimensional ◽  
Nanowire Arrays ◽  
Overall Water Splitting ◽  
Nickel Cobalt ◽  
Double Hydroxide ◽  
Cu Foam

In this study, Cu nanowire arrays grown on a three-dimensional Cu foam substrate are modified by nickel-cobalt layered double hydroxide nanosheets (NiCoNSs/CuNWs), which can be used as a self-supporting trifunctional...

Highly efficient overall water splitting driven by all-inorganic perovskite solar cells and promoted by bifunctional bimetallic phosphide nanowire arrays

2018 ◽  
Vol 6 (41) ◽  
pp. 20076-20082 ◽  
Author(s):  
Lianbo Ma ◽  
Wenjun Zhang ◽  
Peiyang Zhao ◽  
Jia Liang ◽  
Yi Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Splitting ◽  
Perovskite Solar Cells ◽  
Nanowire Arrays ◽  
Inorganic Perovskite ◽  
Highly Efficient ◽  
Overall Water Splitting

Highly efficient overall water splitting promoted by Ni0.5Co0.5P/CP and driven by highly stable all-inorganic perovskite solar cells was realized.

Phosphorization engineering ameliorated the electrocatalytic activity for overall water splitting on Ni3S2 nanosheets

2019 ◽  
Vol 48 (35) ◽  
pp. 13466-13471 ◽  
Author(s):  
Pengyan Wang ◽  
Honglin He ◽  
Zonghua Pu ◽  
Lei Chen ◽  
Chengtian Zhang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Alkaline Medium ◽  
Electrocatalytic Activity ◽  
Highly Efficient ◽  
Overall Water Splitting

Ni3S2–Ni2P heterostructure nanosheets serve as a highly efficient water-splitting electrocatalyst in an alkaline medium.

scholarly journals Graphene/MoS2/FeCoNi(OH)x and Graphene/MoS2/FeCoNiPx multilayer-stacked vertical nanosheets on carbon fibers for highly efficient overall water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xixi Ji ◽  
Yanhong Lin ◽  
Jie Zeng ◽  
Zhonghua Ren ◽  
Zijia Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Fibers ◽  
Graphene Nanosheets ◽  
Water Electrolysis ◽  
Hybrid Structure ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Stable Oxygen ◽  
Excellent Stability

AbstractDevelopment of excellent and cheap electrocatalysts for water electrolysis is of great significance for application of hydrogen energy. Here, we show a highly efficient and stable oxygen evolution reaction (OER) catalyst with multilayer-stacked hybrid structure, in which vertical graphene nanosheets (VGSs), MoS2 nanosheets, and layered FeCoNi hydroxides (FeCoNi(OH)x) are successively grown on carbon fibers (CF/VGSs/MoS2/FeCoNi(OH)x). The catalyst exhibits excellent OER performance with a low overpotential of 225 and 241 mV to attain 500 and 1000 mA cm−2 and small Tafel slope of 29.2 mV dec−1. Theoretical calculation indicates that compositing of FeCoNi(OH)x with MoS2 could generate favorable electronic structure and decrease the OER overpotential, promoting the electrocatalytic activity. An alkaline water electrolyzer is established using CF/VGSs/MoS2/FeCoNi(OH)x anode for overall water splitting, which generates a current density of 100 mA cm−2 at 1.59 V with excellent stability over 100 h. Our highly efficient catalysts have great prospect for water electrolysis.

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