scholarly journals Ultrafine α‐Phase Molybdenum Carbide Decorated with Platinum Nanoparticles for Efficient Hydrogen Production in Acidic and Alkaline Media

2019 ◽  
Vol 6 (8) ◽  
pp. 1802135 ◽  
Author(s):  
Hee Jo Song ◽  
Myeong‐Chang Sung ◽  
Hyunseok Yoon ◽  
Bobae Ju ◽  
Dong‐Wan Kim
Keyword(s):  
Hydrogen Production ◽  
Platinum Nanoparticles ◽  
Molybdenum Carbide ◽  
Alkaline Media ◽  
Α Phase ◽  
Acidic And Alkaline Media

In situ O2-emission assisted synthesis of molybdenum carbide nanomaterials as an efficient electrocatalyst for hydrogen production in both acidic and alkaline media

2017 ◽  
Vol 5 (10) ◽  
pp. 5178-5186 ◽  
Author(s):  
Lvlv Ji ◽  
Jianying Wang ◽  
Lixia Guo ◽  
Zuofeng Chen
Keyword(s):  
Hydrogen Production ◽  
Molybdenum Carbide ◽  
Synthesis Method ◽  
Catalytic Performance ◽  
Alkaline Media ◽  
Acidic And Alkaline Media

A unique in situ O2-emission assisted synthesis method was developed to prepare MoxC-based nanomaterials which exhibit outstanding HER catalytic performance.

BCN network-encapsulated multiple phases of molybdenum carbide for efficient hydrogen evolution reactions in acidic and alkaline media

2017 ◽  
Vol 5 (25) ◽  
pp. 13122-13129 ◽  
Author(s):  
Mohsin Ali Raza Anjum ◽  
Min Hee Lee ◽  
Jae Sung Lee
Keyword(s):  
Hydrogen Evolution ◽  
Molybdenum Carbide ◽  
Alkaline Media ◽  
Organometallic Complex ◽  
Ligand Structure ◽  
Hydrogen Evolution Reactions ◽  
Acidic And Alkaline Media ◽  
Five Phases ◽  
Boron Carbon

Five phases of molybdenum carbide encapsulated by a boron–carbon–nitrogen (BCN) network are synthesized by decomposition of a Mo–imidazole-borate organometallic complex with slight variations in the imidazole-borate ligand structure.

Cationic poly-L-amino acid-enhanced selective hydrogen production based on formate decomposition with platinum nanoparticles dispersed by polyvinylpyrrolidone

2021 ◽  
Author(s):  
Yusuke Minami ◽  
Yutaka Amao
Keyword(s):  
Aqueous Solution ◽  
Amino Acid ◽  
Hydrogen Production ◽  
Formic Acid ◽  
Platinum Nanoparticles ◽  
Hydrogen Carrier ◽  
Low Toxicity ◽  
Formate Decomposition

Formate is attracting attention as a hydrogen carrier because of its low toxicity and easy handling in aqueous solution. In order to utilize formic acid as a hydrogen carrier, a...

scholarly journals Superior FexN electrocatalyst derived from 1,1′-diacetylferrocene for oxygen reduction reaction in alkaline and acidic media

2020 ◽  
Vol 9 (1) ◽  
pp. 843-852
Author(s):  
Hunan Jiang ◽  
Jinyang Li ◽  
Mengni Liang ◽  
Hanpeng Deng ◽  
Zuowan Zhou
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Current Density ◽  
Active Sites ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Acidic Media ◽  
Onset Potential ◽  
Acidic And Alkaline Media ◽  
The Stability

AbstractAlthough Fe–N/C catalysts have received increasing attention in recent years for oxygen reduction reaction (ORR), it is still challenging to precisely control the active sites during the preparation. Herein, we report FexN@RGO catalysts with the size of 2–6 nm derived from the pyrolysis of graphene oxide and 1,1′-diacetylferrocene as C and Fe precursors under the NH3/Ar atmosphere as N source. The 1,1′-diacetylferrocene transforms to Fe3O4 at 600°C and transforms to Fe3N and Fe2N at 700°C and 800°C, respectively. The as-prepared FexN@RGO catalysts exhibited superior electrocatalytic activities in acidic and alkaline media compared with the commercial 10% Pt/C, in terms of electrochemical surface area, onset potential, half-wave potential, number of electrons transferred, kinetic current density, and exchange current density. In addition, the stability of FGN-8 also outperformed commercial 10% Pt/C after 10000 cycles, which demonstrates the as-prepared FexN@RGO as durable and active ORR catalysts in acidic media.

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