scholarly journals Photocorrosion-resistant Sb2Se3photocathodes with earth abundant MoSxhydrogen evolution catalyst

2017 ◽  
Vol 5 (44) ◽  
pp. 23139-23145 ◽  
Author(s):  
Rajiv Ramanujam Prabhakar ◽  
Wilman Septina ◽  
Sebastian Siol ◽  
Thomas Moehl ◽  
René Wick-Joliat ◽  
...  
Keyword(s):  
Acidic Media ◽  
Highly Efficient ◽  
Earth Abundant

A highly efficient Sb2Se3photocathode is resistant to photocorrosion in strongly acidic media without protective overlayers.

Interfacing RuO2 with Pt to induce efficient charge transfer from Pt to RuO2 for highly efficient and stable oxygen evolution under acidic media

2021 ◽  
Author(s):  
Taehyun Kwon ◽  
Heesu Yang ◽  
Minki Jun ◽  
Taekyung Kim ◽  
Jinwhan Joo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Acidic Media ◽  
Highly Efficient ◽  
Efficient Charge ◽  
Stable Oxygen ◽  
The Stability

The oxygen evolution reaction (OER) requires a large overpotential which undermines the stability of electrocatalysts, typically IrOx or RuOx. RuOx is particularly vulnerable to high overpotential in acidic media, due...

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.

In situ synthesis of NiSe@CoP core–shell nanowire arrays on nickel foam as a highly efficient and robust electrode for electrochemical hydrogen generation in both alkaline and acidic media

2018 ◽  
Vol 8 (1) ◽  
pp. 128-133 ◽  
Author(s):  
Yuan-Zi Xu ◽  
Cheng-Zong Yuan ◽  
Zi-Wei Liu ◽  
Xue-Ping Chen
Keyword(s):  
Hydrogen Generation ◽  
Nickel Foam ◽  
In Situ Synthesis ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Acidic Media ◽  
Highly Efficient ◽  
Efficient Generation

The efficient generation of hydrogen through the electro-splitting of water has attracted great attention.

Inside Back Cover: Earth-Abundant Cu2CoSnS4Nanofibers for Highly Efficient H2Evolution at Soft Interfaces (ChemNanoMat 7/2015)

ChemNanoMat ◽  
2015 ◽  
Vol 1 (7) ◽  
pp. 528-528
Author(s):  
Faruk Ozel ◽  
Adem Yar ◽  
Emre Aslan ◽  
Emre Arkan ◽  
Abdalaziz Aljabour ◽  
...  
Keyword(s):  
Back Cover ◽  
Soft Interfaces ◽  
Highly Efficient ◽  
Earth Abundant

Earth-abundant cocatalysts for semiconductor-based photocatalytic water splitting

2014 ◽  
Vol 43 (22) ◽  
pp. 7787-7812 ◽  
Author(s):  
Jingrun Ran ◽  
Jun Zhang ◽  
Jiaguo Yu ◽  
Mietek Jaroniec ◽  
Shi Zhang Qiao
Keyword(s):  
Water Splitting ◽  
Cost Effective ◽  
Photocatalytic Water Splitting ◽  
Highly Efficient ◽  
Earth Abundant

Active and robust cocatalysts constructed from earth-abundant elements greatly contribute to the highly efficient, stable and cost-effective photocatalytic water splitting.

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