Interfacial nickel nitride/sulfide as a bifunctional electrode for highly efficient overall water/seawater electrolysis

2019 ◽  
Vol 7 (14) ◽  
pp. 8117-8121 ◽  
Author(s):  
Yongqiang Zhao ◽  
Bo Jin ◽  
Anthony Vasileff ◽  
Yan Jiao ◽  
Shi-Zhang Qiao
Keyword(s):  
Hydrogen Production ◽  
Water Electrolysis ◽  
Highly Efficient ◽  
Highly Active ◽  
Bifunctional Electrocatalysts ◽  
Nickel Nitride ◽  
Seawater Electrolysis

Simple methods for fabricating highly active and stable interfacial bifunctional electrocatalysts for water electrolysis are essential for hydrogen production.

Structural, Electronic and Electrocatalytic Evaluation of Spinel Transition Metal Sulfide Supported Reduced Graphene Oxide

2022 ◽  
Author(s):  
Santhosh Kumar Ramasamy ◽  
Ramakrishnan S ◽  
Sampath Prabhakaran ◽  
Ae Kim ◽  
Ranjith Kumar Dharman ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Production ◽  
Transition Metal ◽  
Reduced Graphene Oxide ◽  
Metal Sulfide ◽  
Water Electrolysis ◽  
Vital Role ◽  
Transition Metal Sulfide ◽  
Highly Active ◽  
Reduced Graphene

Development of highly active and durable non-precious spinel transition metal sulfide (STMS)-based electrocatalysts plays a vital role in increasing the efficiency of hydrogen production via water electrolysis. Herein, we have...

Development of Ni–Fe based ternary metal hydroxides as highly efficient oxygen evolution catalysts in AEM water electrolysis for hydrogen production

2020 ◽  
Vol 45 (46) ◽  
pp. 24232-24247 ◽  
Author(s):  
Adeline Loh ◽  
Xiaohong Li ◽  
Oluwadamilola O. Taiwo ◽  
Farid Tariq ◽  
Nigel P. Brandon ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Oxygen Evolution ◽  
Water Electrolysis ◽  
Metal Hydroxides ◽  
Highly Efficient ◽  
Ternary Metal

Efficient hydrogen production by saline water electrolysis at high current densities without the interfering chlorine evolution

2021 ◽  
Author(s):  
Zhipeng Yu ◽  
Junyuan Xu ◽  
Li-jian Meng ◽  
Lifeng Liu
Keyword(s):  
Hydrogen Production ◽  
Saline Water ◽  
Renewable Energy Sources ◽  
Water Electrolysis ◽  
Cost Effective ◽  
High Current ◽  
Chlorine Evolution ◽  
Cost Effective Approach ◽  
Current Densities ◽  
Seawater Electrolysis

Seawater electrolysis powered by renewable energy sources has been proposed to be a potentially cost-effective approach to green hydrogen production. However, the long-standing issue regarding the chlorine evolution reaction (CER)...

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.

General Fabrication of RuM (M=Ni, Co) Nanoclusters for Boosting Hydrogen Evolution Reaction Electrocatalysis

Nanoscale ◽  
2021 ◽  
Author(s):  
Mengyu Yuan ◽  
Cheng Wang ◽  
Yong Wang ◽  
Yuan Wang ◽  
Xiaomei Wang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Rational Design ◽  
Water Electrolysis ◽  
Highly Active

Rational design and fabrication of highly active electrocatalysts toward hydrogen evolution reaction (HER) is of paramount significance in the industrial hydrogen production via water electrolysis. Herein, by taking advantages of...

Positive self-reconstruction in FeNiMo phosphide electrocatalyst for enhanced overall water splitting

2021 ◽  
Author(s):  
Yi Wei ◽  
Cheol-Hwan Shin ◽  
Gyan Barimah Caleb ◽  
Emmanuel Batsa Tetteh ◽  
Gisang Park ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Low Cost ◽  
Grand Challenge ◽  
Nickel Iron ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Bifunctional Electrocatalysts

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...

Nickel/cobalt oxide as a highly efficient OER electrocatalyst in an alkaline polymer electrolyte water electrolyzer

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90397-90400 ◽  
Author(s):  
Jun Chi ◽  
Hongmei Yu ◽  
Guangfu Li ◽  
Li Fu ◽  
Jia Jia ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Polymer Electrolyte ◽  
Cobalt Oxide ◽  
Solid Polymer Electrolyte ◽  
Water Electrolysis ◽  
Solid Polymer ◽  
Highly Efficient ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Alkaline Polymer Electrolyte

Water electrolysis by an alkaline solid polymer electrolyte (APE) water electrolyzer is a promising approach for hydrogen production from water.

scholarly journals Energy-saving hydrogen production by chlorine-free hybrid seawater splitting coupling hydrazine degradation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Fu Sun ◽  
Jingshan Qin ◽  
Zhiyu Wang ◽  
Mengzhou Yu ◽  
Xianhong Wu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Low Voltage ◽  
Neutral Hydrogen ◽  
Water Electrolysis ◽  
High Energy ◽  
Hydrogen Energy ◽  
Scale Production ◽  
Alkaline Water Electrolysis ◽  
Self Powered ◽  
Seawater Electrolysis

AbstractSeawater electrolysis represents a potential solution to grid-scale production of carbon-neutral hydrogen energy without reliance on freshwater. However, it is challenged by high energy costs and detrimental chlorine chemistry in complex chemical environments. Here we demonstrate chlorine-free hydrogen production by hybrid seawater splitting coupling hydrazine degradation. It yields hydrogen at a rate of 9.2 mol h–1 gcat–1 on NiCo/MXene-based electrodes with a low electricity expense of 2.75 kWh per m3 H2 at 500 mA cm–2 and 48% lower energy equivalent input relative to commercial alkaline water electrolysis. Chlorine electrochemistry is avoided by low cell voltages without anode protection regardless Cl– crossover. This electrolyzer meanwhile enables fast hydrazine degradation to ~3 ppb residual. Self-powered hybrid seawater electrolysis is realized by integrating low-voltage direct hydrazine fuel cells or solar cells. These findings enable further opportunities for efficient conversion of ocean resources to hydrogen fuel while removing harmful pollutants.

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