Pt-like hydrogen evolution on a V2O5/Ni(OH)2 electrocatalyst

2019 ◽  
Vol 7 (26) ◽  
pp. 15794-15800 ◽  
Author(s):  
Abhishek Meena ◽  
Miran Ha ◽  
S. Selva Chandrasekaran ◽  
Siraj Sultan ◽  
Pandiarajan Thangavel ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nickel Foam ◽  
Cost Effective ◽  
Highly Efficient ◽  
Binder Free

We report a highly efficient and cost-effective binder-free catalyst for the hydrogen evolution reaction (HER) using V2O5 particles on nickel foam (NF) (V2O5/Ni(OH)2@NF).

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 Ball Milling-Assisted Synthesis of Ultrasmall Ruthenium Phosphide for Efficient Hydrogen Evolution Reaction

Catalysts ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 240 ◽  
Author(s):  
Xiaofei Liu ◽  
Yanglong Guo ◽  
Wangcheng Zhan ◽  
Tian Jin
Keyword(s):  
Ball Milling ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Cost Effective ◽  
Treatment Method ◽  
Post Treatment ◽  
Practical Applications ◽  
Highly Efficient ◽  
Conventional Solution

The development of scalable hydrogen production technology to produce hydrogen economically and in an environmentally friendly way is particularly important. The hydrogen evolution reaction (HER) is a clean, renewable, and potentially cost-effective pathway to produce hydrogen, but it requires the use of a favorable electrocatalyst which can generate hydrogen with minimal overpotential for practical applications. Up to now, ruthenium phosphide Ru2P has been considered as a high-performance electrocatalyst for the HER. However, a tedious post-treatment method as well as large consumption of solvents in conventional solution-based synthesis still limits the scalable production of Ru2P electrocatalysts in practical applications. In this study, we report a facile and cost-effective strategy to controllably synthesize uniform ultrasmall Ru2P nanoparticles embedded in carbon for highly efficient HER. The key to our success lies in the use of a solid-state ball milling-assisted technique, which overcomes the drawbacks of the complicated post-treatment procedure and large solvent consumption compared with solution-based synthesis. The obtained electrocatalyst exhibits excellent Pt-like HER performance with a small overpotential of 36 mV at current density of 10 mA cm−2 in 1 M KOH, providing new opportunities for the fabrication of highly efficient HER electrocatalysts in real-world applications.

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.

Terephthalic acid induced binder-free NiCoP–carbon nanocomposite for highly efficient electrocatalysis of hydrogen evolution reaction

2019 ◽  
Vol 9 (17) ◽  
pp. 4651-4658 ◽  
Author(s):  
Suchada Sirisomboonchai ◽  
Shasha Li ◽  
Akihiro Yoshida ◽  
Suwadee Kongparakul ◽  
Chanatip Samart ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Terephthalic Acid ◽  
Water Electrolysis ◽  
Electrolysis Process ◽  
Highly Efficient ◽  
Binder Free ◽  
First Time ◽  
Carbon Nanocomposite

NiCoP–carbon nanocomposite based electrocatalyst (NiCoP–C(TPA)/NF) for highly efficient hydrogen production in the water electrolysis process was developed for the first time by a terephthalic acid induced binder-free method.

Phosphorus-Modified Ruthenium-Tellurium Dendritic Nanotubes Outperform Platinum for Alkaline Hydrogen Evolution

2021 ◽  
Author(s):  
Min Liu ◽  
You Xu ◽  
Songliang Liu ◽  
Shuli Yin ◽  
Mengying Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Important Process ◽  
Highly Efficient ◽  
Key Factor ◽  
Electrochemical Water Splitting

Hydrogen evolution reaction (HER) is an important process in electrochemical water splitting, and the key factor for HER technology lies in the development of cost-effective and highly efficient electrocatalysts. Herein,...

Synergistically enhanced alkaline hydrogen evolution reaction by coupling CoFe layered double hydroxide with NiMoO4 prepared by two-step electrodeposition

2021 ◽  
Author(s):  
Jiankang Wang ◽  
Kui Chen ◽  
Rong Peng ◽  
Yajing Wang ◽  
Taiping Xie ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Highly Efficient ◽  
Double Hydroxide

Exploiting cost-effective, highly efficient and stable alkaline electrocatalyst is of great challenges for hydrogen evolution reaction (HER). Herein, NiMoO4 and CoFe layered double hydroxide (CoFe LDH) with poor crystallinity were...

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