scholarly journals Earth-Abundant Metal Pyrites (FeS2, CoS2, NiS2, and Their Alloys) for Highly Efficient Hydrogen Evolution and Polysulfide Reduction Electrocatalysis

2014 ◽  
Vol 118 (37) ◽  
pp. 21347-21356 ◽  
Author(s):  
Matthew S. Faber ◽  
Mark A. Lukowski ◽  
Qi Ding ◽  
Nicholas S. Kaiser ◽  
Song Jin
Keyword(s):  
Hydrogen Evolution ◽  
Highly Efficient ◽  
Earth Abundant

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.

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.

A novel and highly efficient earth-abundant Cu3P with TiO2“P–N” heterojunction nanophotocatalyst for hydrogen evolution from water

Nanoscale ◽  
2016 ◽  
Vol 8 (40) ◽  
pp. 17516-17523 ◽  
Author(s):  
Xinzheng Yue ◽  
Shasha Yi ◽  
Runwei Wang ◽  
Zongtao Zhang ◽  
Shilun Qiu
Keyword(s):  
Hydrogen Evolution ◽  
Highly Efficient ◽  
Earth Abundant

Preparation of Porous CoS2 Nanostructures for Highly Efficient Electrocatalytic Hydrogen Evolution

2019 ◽  
Vol 944 ◽  
pp. 643-649
Author(s):  
Ka Wang ◽  
Hai Zeng Song ◽  
Wei Lan Guo ◽  
Shan Cheng Yan
Keyword(s):  
Hydrogen Evolution ◽  
Low Cost ◽  
Environmental Issues ◽  
Catalytic Performance ◽  
Carbon Cloth ◽  
Facile Hydrothermal Method ◽  
Highly Efficient ◽  
Earth Abundant ◽  
Hydrogen Evolution Reactions ◽  
A Current

In response to global energy and environmental issues, development of efficient and robust earth-abundant electrocatalysts for hydrogen evolution reaction is particularly meaningful. In this study, a facile hydrothermal method is developed to synthesize porous CoS2 nanostructures by using sulfur powder and thiourea as sulfur sources on carbon cloths for highly efficient hydrogen evolution reactions. The huge load of CoS2 on carbon cloth，their unique porous nanostructures equiped CoS2 nanomaterials with excellent electrocatalytic properties. The remarkable HER catalytic performance was achieved with -67 mV at a current density -10 mA cm-2 and the Tafel slope 62 mV dec-1 in 0.5 M H2SO4 solution. The overpotential of HER only lost 2 mV after 1000 cycles with remarkable stability. I think this work opens up a low cost and scalable route to fabricate transition metal-based materials for application in electrocatalysis.

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.

Hierarchical Cu2S hollow nanowire arrays for highly efficient hydrogen evolution reaction

2021 ◽  
Author(s):  
Ning Xie ◽  
Dong-Dong Ma ◽  
Yu-Lin Wu ◽  
Xintao Wu ◽  
Qi-Long Zhu
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Low Cost ◽  
Nanowire Arrays ◽  
Highly Efficient ◽  
Highly Active ◽  
Earth Abundant

Exploiting the highly active and low-cost electrocatalysts based on earth-abundant elements for hydrogen evolution reaction (HER) is an extremely desired but challenging task. Herein, we present a facile and economical...

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.

The synergetic effect of N, S-codoped carbon and CoOx nanodots derived from ZIF-67 as a highly efficient cocatalyst over CdS nanorods

2020 ◽  
Vol 4 (4) ◽  
pp. 1954-1962
Author(s):  
Junmei Wang ◽  
Qinchao Xu ◽  
Manli Liu ◽  
Kefeng Wang ◽  
Zhijian Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Synergetic Effect ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient ◽  
Cds Nanorods ◽  
Earth Abundant

Earth-abundant transition metal cocatalysts are promising rare and noble metal alternatives for efficient photocatalytic hydrogen evolution.

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.

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