Tuning of the electrocatalytic characteristics of PANI/Fe2O3 composite coating for alkaline hydrogen evolution reaction

2020 ◽  
Vol 49 (33) ◽  
pp. 11628-11639 ◽  
Author(s):  
V. S. Sumi ◽  
Liju Elias ◽  
M. J. Deepa ◽  
S. M. A. Shibli
Keyword(s):  
Composite Coating ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Effective Strategy ◽  
Cost Effective Strategy

The paper reports a simple and cost-effective strategy for the development of a stable and reproducible PANI/Fe2O3 composite coating as an efficient electrode for the electrocatalytic alkaline hydrogen evolution reaction (HER).

A cost effective strategy to fabricate STA@PF@Cu2O hierarchical structure on wood surface: aimed at superhydrophobic modification

2021 ◽  
Vol 55 (2) ◽  
pp. 565-583
Author(s):  
Ke Zhan ◽  
Quanxiong Lu ◽  
Sengwei Xia ◽  
Congnan Guo ◽  
Sisi Zhao ◽  
...  
Keyword(s):  
Hierarchical Structure ◽  
Wood Surface ◽  
Cost Effective ◽  
Effective Strategy ◽  
Cost Effective Strategy

Flower-like tungsten-doped Fe–Co phosphides as efficient electrocatalysts for hydrogen evolution reaction

CrystEngComm ◽  
2021 ◽  
Author(s):  
Qian Zhang ◽  
Shuihua Tang ◽  
Lieha Shen ◽  
Weixiang Yang ◽  
Zhen Tang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Adsorption Energy ◽  
High Performance ◽  
Hydrogen Adsorption ◽  
Cost Effective

Developing cost-effective and high-performance electrocatalysts for hydrogen evolution reaction (HER) are imperative thanks to rapid increase of fuel-cell driven vehicles. Tungsten (W) possesses advantages of optimized hydrogen adsorption energy and...

A cost effective strategy for managing GI bleeding secondary to peptic ulcer disease

1995 ◽  
Vol 108 (4) ◽  
pp. A18 ◽  
Author(s):  
I Hussain ◽  
WH Farrar ◽  
EJ Sofian ◽  
TF Bader ◽  
JD Strom ◽  
...  
Keyword(s):  
Peptic Ulcer ◽  
Peptic Ulcer Disease ◽  
Cost Effective ◽  
Effective Strategy ◽  
Gi Bleeding ◽  
Ulcer Disease ◽  
Cost Effective Strategy

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 Scaling-Up the Recognition of Indigenous and Community Land Rights: Opportunities, Costs and Climate Implications

2021 ◽  
Author(s):  
◽  
Keyword(s):  
Indigenous Peoples ◽  
Cost Effective ◽  
Land Rights ◽  
Scaling Up ◽  
Local Communities ◽  
Effective Strategy ◽  
Cost Effective Strategy ◽  
International Funding ◽  
Growing Body ◽  
Alternative Solutions

A growing body of evidence suggests that recognition of the collective tenure rights of Indigenous Peoples, local communities, and Afro-descendants is a powerful and cost-effective strategy for addressing the climate and biodiversity crises. In spite of this, international funding for rights recognition pales in comparison to donor mobilization around alternative solutions to these crises.

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