Scalable Synthesis of a Ruthenium-Based Electrocatalyst as a Promising Alternative to Pt for Hydrogen Evolution Reaction

2018 ◽  
Vol 10 (38) ◽  
pp. 32171-32179 ◽  
Author(s):  
Zhen Zhang ◽  
Ping Li ◽  
Qi Feng ◽  
Bing Wei ◽  
Chenglong Deng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Promising Alternative ◽  
Scalable Synthesis

scholarly journals Cobalt-Based Metal-Organic Frameworks and Their Derivatives for Hydrogen Evolution Reaction

2020 ◽  
Vol 8 ◽  
Author(s):  
Wenjuan Han ◽  
Minhan Li ◽  
Yuanyuan Ma ◽  
Jianping Yang
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Alternative Energy ◽  
Metal Organic Frameworks ◽  
Electrochemical Performances ◽  
Promising Alternative ◽  
Metal Organic ◽  
Electrochemical Water Splitting

Hydrogen has been considered as a promising alternative energy to replace fossil fuels. Electrochemical water splitting, as a green and renewable method for hydrogen production, has been drawing more and more attention. In order to improve hydrogen production efficiency and lower energy consumption, efficient catalysts are required to drive the hydrogen evolution reaction (HER). Cobalt (Co)-based metal-organic frameworks (MOFs) are porous materials with tunable structure, adjustable pores and large specific surface areas, which has attracted great attention in the field of electrocatalysis. In this review, we focus on the recent progress of Co-based metal-organic frameworks and their derivatives, including their compositions, morphologies, architectures and electrochemical performances. The challenges and development prospects related to Co-based metal-organic frameworks as HER electrocatalysts are also discussed, which might provide some insight in electrochemical water splitting for future development.

Highly active electrocatalyst cobalt-carbide nanoparticles synthesized by wet-chemistry method for hydrogen evolution reaction

2020 ◽  
Vol 34 (07n09) ◽  
pp. 2040022
Author(s):  
Yi-Heng Lin ◽  
Po-Chia Huang ◽  
Sheng-Chang Wang ◽  
Jow-Lay Huang
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alternative Energy ◽  
Noble Metals ◽  
Triethylene Glycol ◽  
Promising Alternative ◽  
Wet Chemistry ◽  
Onset Potential ◽  
Chemistry Method ◽  
Cobalt Carbide

Hydrogen is a promising alternative energy without greenhouse gas emissions. The transition metal carbides (TMCs) are considered a sustainable alternatives to noble metals in catalysis. Among the TMCs, Co[Formula: see text]C ([Formula: see text] = 2, 3) nanoparticles (NPs) act as an excellent electrocatalyst for hydrogen evolution reaction (HER) by water splitting. In our report, Co[Formula: see text]C nanocomposites were synthesized by wet chemistry method using cobalt (II) acetate, sodium hydroxide as precursors and triethylene glycol as solvent. In addition, Co2C NPs were synthesized by similar wet chemistry method using cobalt (II) acetate as precursors and triethylene glycol, oleylamine as solvent. The cobalt carbide NPs exhibited high electrocatalytic activity. Co[Formula: see text]C nanocomposites performed a −0.33 V onset potential and 91 mV/dec Tafel slope, while the Co2C NPs exhibited a better performance of −0.27 V and 60 mV/dec, respectively.

Cobalt phosphosulfide in the tetragonal phase: a highly active and durable catalyst for the hydrogen evolution reaction

2018 ◽  
Vol 6 (26) ◽  
pp. 12353-12360 ◽  
Author(s):  
Jinfa Chang ◽  
Yixin Ouyang ◽  
Junjie Ge ◽  
Jinlan Wang ◽  
Changpeng Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Tetragonal Phase ◽  
Electrochemical Energy Storage ◽  
Alkaline Solutions ◽  
Energy Storage And Conversion ◽  
Promising Alternative ◽  
Highly Active ◽  
Cobalt Phosphosulfide

Sea urchin-like ternary cobalt phosphosulfide nanoneedles in the tetragonal phase were developed. This efficient and robust material exhibits superior hydrogen evolution reaction catalytic activity and durability in both acidic and alkaline solutions, and represents the most promising alternative to a platinum-based catalyst for use in electrochemical energy storage and conversion, and other applications.

Enhanced electrocatalytic performance for the hydrogen evolution reaction through surface enrichment of platinum nanoclusters alloying with ruthenium in situ embedded in carbon

2018 ◽  
Vol 11 (5) ◽  
pp. 1232-1239 ◽  
Author(s):  
Kui Li ◽  
Yang Li ◽  
Yuemin Wang ◽  
Junjie Ge ◽  
Changpeng Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Cost Effective ◽  
Alloy Nanoparticles ◽  
Surface Enrichment ◽  
Promising Alternative ◽  
Pt Nanoclusters ◽  
The Cost ◽  
Platinum Nanoclusters

PtRu alloy nanoparticles, surface-enriched with Pt nanoclusters and partially-embedded in carbon, act as the cost-effective and promising alternative to commercial Pt/C for electrocatalytic hydrogen evolution.

scholarly journals Smart Designs of Mo Based Electrocatalysts for Hydrogen Evolution Reaction

Catalysts ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 2
Author(s):  
Xingyuan Gao ◽  
Huilin Deng ◽  
Qiuping Dai ◽  
Quanlong Zeng ◽  
Shuxian Qiu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Low Cost ◽  
Clean Energy ◽  
Heteroatom Doping ◽  
Promising Alternative ◽  
Noble Metal Catalysts ◽  
Clean Energy Source ◽  
Catalytic Performances

As a sustainable and clean energy source, hydrogen can be generated by electrolytic water splitting (i.e., a hydrogen evolution reaction, HER). Compared with conventional noble metal catalysts (e.g., Pt), Mo based materials have been deemed as a promising alternative, with a relatively low cost and comparable catalytic performances. In this review, we demonstrate a comprehensive summary of various Mo based materials, such as MoO2, MoS2 and Mo2C. Moreover, state of the art designs of the catalyst structures are presented, to improve the activity and stability for hydrogen evolution, including Mo based carbon composites, heteroatom doping and heterostructure construction. The structure–performance relationships relating to the number of active sites, electron/ion conductivity, H/H2O binding and activation energy, as well as hydrophilicity, are discussed in depth. Finally, conclusive remarks and future works are proposed.

Scalable synthesis of Mo2C/CNT networks as highly efficient and stable electrocatalyst for hydrogen evolution reaction

2018 ◽  
Vol 263 ◽  
pp. 192-200 ◽  
Author(s):  
Yang Hu ◽  
Deng-gao Guan ◽  
Bo Yu ◽  
Wenqiang Hou ◽  
Binjie Zheng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Highly Efficient ◽  
Scalable Synthesis
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