scholarly journals β-Mo2C Nanoparticles Produced by Carburization of Molybdenum Oxides with Carbon Black under Microwave Irradiation for Electrocatalytic Hydrogen Evolution Reaction

Author(s):  
Junpeng Fan ◽  
Xiuyu Wu ◽  
Alexis Piñeiro-García ◽  
Nicolas Boulanger ◽  
Yesmin Panecatl-Bernal ◽  
...  
2015 ◽  
Vol 24 (5) ◽  
pp. 608-613 ◽  
Author(s):  
Jiayuan Li ◽  
Dunfeng Gao ◽  
Jing Wang ◽  
Shu Miao ◽  
Guoxiong Wang ◽  
...  

2017 ◽  
Vol 19 (31) ◽  
pp. 20861-20866 ◽  
Author(s):  
Ubisha Joshi ◽  
Souradip Malkhandi ◽  
Boon Siang Yeo

An investigation of the catalysis of the electrochemical hydrogen evolution reaction (HER, 2H+ + 2e− → H2) in aqueous 0.5 M H2SO4 electrolyte using composites consisting of gold nanoparticles (AuNP), carbon (Black Pearl 2000) and group 4, 5, and 6 metals is presented.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1313
Author(s):  
Deepti Raj ◽  
Federico Scaglione ◽  
Gianluca Fiore ◽  
Federica Celegato ◽  
Paola Rizzi

Characterized by a large surface area to volume ratio, nanostructured metal oxides possess unique chemical and physical properties with applications in electronics, catalysis, sensors, etc. In this study, Mo3Al8, an intermetallic compound, has been used as a precursor to obtain nanostructured molybdenum oxides. It was prepared into ribbons by arc-melting and melt-spinning techniques. Single and double-step free corrosion of the as-quenched material have been studied in 1 M KOH, 1 M HF and 1.25 M FeCl3 at room temperature. In both cases, nanostructured molybdenum oxides were obtained on a surface layer a few microns thick. Two of the as-prepared samples were tested for their electrocatalytic capability for hydrogen evolution reaction (HER) in 0.5 M H2SO4 giving low onset potential (−50 mV, −45 mV), small Tafel slopes (92 mV dec−1, 9 mV dec−1) and high exchange current densities (0.08 mA cm−2, 0.35 mA cm−2 respectively). The proposed nanostructured molybdenum oxides are cost-effective and sustainable due to the cheap and abundant starting material used and the simple synthetic route, paving the way for their possible application as HER electrocatalysts.


RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 114430-114435 ◽  
Author(s):  
Zhichao Gao ◽  
Qian Gao ◽  
Zhipeng Liu ◽  
Cong Zhang ◽  
Xiaoting Zhang ◽  
...  

Iron phosphide ultrafine nanocrystals supported on carbon black were synthesized via a facile method and used as a highly efficient hydrogen evolution reaction electrocatalyst.


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