نتایج جستجو برای: hydrogen evolution reaction her

تعداد نتایج: 956212  

Journal: :Catalysts 2022

Metal phase molybdenum disulfide (1T-MoS2) is considered a promising electrocatalyst for the hydrogen evolution reaction (HER). In this work, an interface engineering-induced strategy reported to prepare 1T-MoS2/NiS heterostructure. The heterostructure exhibits enhanced HER activity compared with that of 1T-MoS2 in 1.0 M KOH. It achieves overpotential 0.12 V at current density 10 mA cm−2 Tafel ...

Journal: :Carbon energy 2023

Small-molecule electrooxidation-boosted water electrolysis (WE) is an energy-saving method for hydrogen (H2) production. Herein, PdPt bimetallenes (PdPt BMLs) are obtained through the simple galvanic replacement reaction. BMLs reveal 2.93-fold enhancement in intrinsic electroactivity and 4.53-fold mass formate oxidation reaction (FOR) with respect to Pd metallenes (Pd MLs) at 0.50 V potential d...

Journal: :Nanoscale 2016
Mingyu Pi Tianli Wu Dingke Zhang Shijian Chen Shuxia Wang

The design and development of high-efficiency and non-noble metal hydrogen evolution reaction (HER) electrocatalysts with optimized nanostructures for human clean and sustainable energy systems has attracted significant research interest over the past years. Herein, self-supported semimetallic tungsten diphosphide nanowire arrays on carbon cloth (WP2 NWs/CC) were topotactically fabricated by in...

2018
Huifang Wei Qiaoya Xi Xi'an Chen Daying Guo Feng Ding Zhi Yang Shun Wang Juan Li Shaoming Huang

Molybdenum carbide (Mo2C) is recognized as an alternative electrocatalyst to noble metal for the hydrogen evolution reaction (HER). Herein, a facile, low cost, and scalable method is provided for the fabrication of Mo2C-based eletrocatalyst (Mo2C/G-NCS) by a spray-drying, and followed by annealing. As-prepared Mo2C/G-NCS electrocatalyst displays that ultrafine Mo2C nanopartilces are uniformly e...

Journal: :Science China. Materials 2021

Water electrolysis is one of the most promising approaches for producing hydrogen. However, it has been hindered by sluggishness anodic oxygen evolution reaction. In this work, we fabricated Ru-Co-Mn trimetallic alloy nanoparticles on N-doped carbon support (RuCoMn@NC) via pyrolysis-adsorption-pyrolysis process using ZIF-67 as a precursor. The RuCoMn@NC catalyst exhibited excellent electrocatal...

2016
Carlo Santoro Francesca Soavi Catia Arbizzani Alexey Serov Sadia Kabir Kayla Carpenter Orianna Bretschger Plamen Atanassov

In this work, four different supercapacitive microbial fuel cells (SC-MFCs) with carbon brush as the anode and an air-breathing cathode with Fe-Aminoantipyrine (Fe-AAPyr) as the catalyst have been investigated using galvanostatic discharges. The maximum power (Pmax) obtained was in the range from 1.7 mW to 1.9 mW for each SC-MFC. This in-series connection of four SC-MFCs almost quadrupled Pmax ...

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