Novel Co–Ni–graphene composite electrodes for hydrogen production

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47398-47407 ◽  
Author(s):  
B. Subramanya ◽  
Y. Ullal ◽  
S. U. Shenoy ◽  
D. K. Bhat ◽  
A. C. Hegde
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Alkaline Medium ◽  
Hydrogen Evolution Reaction ◽  
Composite Electrode ◽  
Composite Electrodes ◽  
Graphene Composite ◽  
Highly Efficient ◽  
Earth Abundant

A novel, highly efficient composite electrode containing earth-abundant elements (Co–Ni) and graphene has been developed for the electrocatalytic hydrogen evolution reaction in an alkaline medium.

Co nanoparticles embedded in a 3D CoO matrix for electrocatalytic hydrogen evolution

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38515-38520 ◽  
Author(s):  
Xiangye Liu ◽  
Chenlong Dong ◽  
Wujie Dong ◽  
Xin Wang ◽  
Xiaotao Yuan ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Highly Efficient ◽  
Earth Abundant ◽  
Co Nanoparticles

Earth-abundant and highly efficient electrocatalysts for the hydrogen evolution reaction (HER) are desired for hydrogen production from water-splitting.

Simultaneous interfacial chemistry and inner Helmholtz plane regulation for superior alkaline hydrogen evolution

2020 ◽  
Vol 13 (9) ◽  
pp. 3007-3013 ◽  
Author(s):  
Bao Zhang ◽  
Lishang Zhang ◽  
Qiuyang Tan ◽  
Jinsong Wang ◽  
Jia Liu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Interfacial Chemistry ◽  
Highly Efficient ◽  
Earth Abundant

Developing highly efficient and durable alkaline hydrogen evolution reaction (HER) electrocatalysts composed of earth-abundant materials is crucial for large-scale electrochemical hydrogen production.

scholarly journals WS(1−x)Sex Nanoparticles Decorated Three-Dimensional Graphene on Nickel Foam: A Robust and Highly Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 929 ◽  
Author(s):  
Sajjad Hussain ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Rana Afzal ◽  
Wooseok Song ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Nickel Foam ◽  
Transition Metal Dichalcogenides ◽  
Three Dimensional ◽  
Cost Effective ◽  
Highly Efficient ◽  
Highly Active ◽  
Earth Abundant

To find an effective alternative to scarce, high-cost noble platinum (Pt) electrocatalyst for hydrogen evolution reaction (HER), researchers are pursuing inexpensive and highly efficient materials as an electrocatalyst for large scale practical application. Layered transition metal dichalcogenides (TMDCs) are promising candidates for durable HER catalysts due to their cost-effective, highly active edges and Earth-abundant elements to replace Pt electrocatalysts. Herein, we design an active, stable earth-abundant TMDCs based catalyst, WS(1−x)Sex nanoparticles-decorated onto a 3D porous graphene/Ni foam. The WS(1−x)Sex/graphene/NF catalyst exhibits fast hydrogen evolution kinetics with a moderate overpotential of ~−93 mV to drive a current density of 10 mA cm−2, a small Tafel slope of ~51 mV dec−1, and a long cycling lifespan more than 20 h in 0.5 M sulfuric acid, which is much better than WS2/NF and WS2/graphene/NF catalysts. Our outcomes enabled a way to utilize the TMDCs decorated graphene and precious-metal-free electrocatalyst as mechanically robust and electrically conductive catalyst materials.

scholarly journals Three-dimensionally ordered macro-/mesoporous Ni as a highly efficient electrocatalyst for the hydrogen evolution reaction

2015 ◽  
Vol 3 (21) ◽  
pp. 11367-11375 ◽  
Author(s):  
Tingting Sun ◽  
Chengwei Zhang ◽  
Jianfeng Chen ◽  
Yushan Yan ◽  
Anvar A. Zakhidov ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Alkaline Medium ◽  
Hydrogen Evolution Reaction ◽  
Highly Efficient

A novel three-dimensionally ordered macro-/mesoporous Ni electrocatalyst is fabricated and shows excellent properties for the hydrogen evolution reaction in alkaline medium.

Well-dispersed ultrasmall VC nanoparticles embedded in N-doped carbon nanotubes as highly efficient electrocatalysts for hydrogen evolution reaction

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14272-14279 ◽  
Author(s):  
Liyun Cao ◽  
Ning Zhang ◽  
Liangliang Feng ◽  
Jianfeng Huang ◽  
Yongqiang Feng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Rational Design ◽  
Catalytic Properties ◽  
Design And Synthesis ◽  
Highly Efficient ◽  
Earth Abundant

The rational design and synthesis of ultrasmall metal-based electrocatalysts using earth-abundant elements are considered as a promising route to improve catalytic properties.

Polyoxometalate-based metal–organic framework loaded with an ultra-low amount of Pt as an efficient electrocatalyst for hydrogen production

CrystEngComm ◽  
2018 ◽  
Vol 20 (36) ◽  
pp. 5387-5394 ◽  
Author(s):  
Haiyue Peng ◽  
Xiaojian Yang ◽  
Yuanyuan Ma ◽  
Jianing Liu ◽  
Yonghui Wang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Metal Organic Framework ◽  
Highly Efficient ◽  
Efficient Performance ◽  
Metal Organic ◽  
Organic Framework

A low-Pt content polyoxometalate-based metal–organic framework (Pt@POMOF-1/KB) displays a highly efficient performance towards the hydrogen evolution reaction.

scholarly journals 2D-Layered Non-Precious Electrocatalysts for Hydrogen Evolution Reaction: Fundamentals to Applications

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 689
Author(s):  
Prasanta Kumar Sahoo ◽  
Soubhagya Ranjan Bisoi ◽  
Yi-June Huang ◽  
Dung-Sheng Tsai ◽  
Chuan-Pei Lee
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Clean Energy ◽  
Layered Materials ◽  
Scale Production ◽  
Highly Efficient ◽  
2D Layered Materials ◽  
Production Of Hydrogen

The production of hydrogen via the water splitting process is one of the most promising technologies for future clean energy requirements, and one of the best related challenges is the choice of the most highly efficient and cost effective electrocatalyst. Conventional electrocatalysts based on precious metals are rare and very-expensive for large-scale production of hydrogen, demanding the exploration for low-cost earth abundant alternatives. In this context, extensive works from both theoretical and experimental investigations have shown that two-dimensional (2D) layered materials have gained considerable attention as highly effective electrocatalytic materials for electrical-driven hydrogen production because of their unique layered structure and exciting electrical properties. This review highlights recent advancements on 2D layered materials, including graphene, transitional metal dichalcogenides (TMDs), layered double hydroxides (LDHs), MXene, and graphitic carbon nitride (g-C3N4) as cost-effective and highly efficient electrocatalysts for hydrogen production. In addition, some fundamental aspects of the hydrogen evolution reaction (HER) process and a wide ranging overview on several strategies to design and synthesize 2D layered material as HER electrocatalysts for commercial applications are introduced. Finally, the conclusion and futuristic prospects and challenges of the advancement of 2D layered materials as non-precious HER electrocatalysts are briefly discussed.

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