Insights into catalytic roles of noble-metal-free catalysts CoxSy for reduction of 4-nitrophenol

2018 ◽  
Vol 20 (44) ◽  
pp. 27730-27734 ◽  
Author(s):  
Rongmei Zhou ◽  
Xiaoyan Yang ◽  
Peng Zhang ◽  
Lixia Yang ◽  
Chengwei Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Adsorption Ability ◽  
Metal Free ◽  
Electron Migration

The enhanced catalytic activity of Co9S8 results from the better H adsorption ability and the faster electron-migration efficiency of multivalent Co.

Noble-metal-free NiFe nanoparticles immobilized on nano CeZrO2 solid solutions for highly efficient hydrogen production from hydrous hydrazine

2019 ◽  
Vol 3 (11) ◽  
pp. 3071-3077 ◽  
Author(s):  
Hongtao Zou ◽  
Qilu Yao ◽  
Meiling Huang ◽  
Meihua Zhu ◽  
Fei Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Noble Metal ◽  
Solid Solutions ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
High Catalytic Activity ◽  
Metal Free ◽  
Highly Efficient ◽  
Hydrazine Solution

Noble-metal-free NiFe nanoparticles were successfully immobilized on nano CeZrO2 solid solutions by a simple impregnation–reduction method, exhibiting a high catalytic activity and 100% H2 selectivity for hydrogen generation from hydrazine solution.

scholarly journals Ternary Ni–Co–P nanoparticles as noble-metal-free catalysts to boost the hydrolytic dehydrogenation of ammonia-borane

2017 ◽  
Vol 10 (8) ◽  
pp. 1770-1776 ◽  
Author(s):  
Chun-Chao Hou ◽  
Qiang Li ◽  
Chuan-Jun Wang ◽  
Cheng-Yun Peng ◽  
Qian-Qian Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Electronic Structures ◽  
Marked Improvement ◽  
Ammonia Borane ◽  
Metal Free

Ternary Ni–Co–P nanoparticles with optimized electronic structures strongly interact with ammonia-borane, resulting in the marked improvement of catalytic activity.

scholarly journals Insights into Interface Charge Extraction in a Noble-Metal-Free Doped Z-Scheme NiO@BiOCl Heterojunction

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 958
Author(s):  
Jun Yang ◽  
Quanxi Zhu ◽  
Taiping Xie ◽  
Jiankang Wang ◽  
Yuan Peng ◽  
...  
Keyword(s):  
Noble Metal ◽  
Chemical Potential ◽  
First Principles Calculation ◽  
Time Resolved ◽  
Metal Free ◽  
Interface Charge ◽  
Charge Extraction ◽  
Electron Migration ◽  
And Migration ◽  
Photocatalytic Material

It is of great significance to thoroughly explore the interface charge extraction and migration in heterojunction systems, which could guide us to synthesize higher-efficiency photocatalytic materials. A novel noble-metal-free doped Z-scheme NiO@BiOCl heterojunction was found in this work. The corresponding heterostructure, interface electron extraction, and electron migration were investigated via first-principles calculation. 5,5′-dimethyl-1-pyrroline-N-oxide (DMPO) spin-trapping electron spin resonance (ESR) and time-resolved photoluminescence (TRPL) tests were implemented to confirm the calculation results, which showed that electrons and holes stayed in the NiO (100) facet and BiOCl (110) facet, respectively. Owing to the large chemical potential of 2.40 V (vs ENHE) for the BiOCl valence-band hole, it possessed super activity to oxidize water into hydroxyl radicals or molecular oxygen. We hope this promising multifunctional photocatalytic material, therefore, NiO@BiOCl can be applied in advanced treatment of organic wastewater and oxygen production from photolysis water.

scholarly journals In situ hydrodeoxygenation of vanillin over Ni–Co–P/HAP with formic acid as a hydrogen source

RSC Advances ◽  
2021 ◽  
Vol 11 (18) ◽  
pp. 10996-11003
Author(s):  
Mingxing Duan ◽  
Qingyan Cheng ◽  
Mingming Wang ◽  
Yanji Wang
Keyword(s):  
Catalytic Activity ◽  
Amorphous Alloy ◽  
Formic Acid ◽  
Noble Metal ◽  
Metal Free ◽  
Alloy Catalyst

A new noble metal-free Ni–Co–P/HAP amorphous alloy catalyst was developed, and it showed excellent catalytic activity for in situ hydrodeoxygenation of vanillin to 2-methoxy-4-methylphenol with formic acid as a hydrogen source.

High catalytic activity for water oxidation based on nanostructured nickel phosphide precursors

2015 ◽  
Vol 51 (58) ◽  
pp. 11626-11629 ◽  
Author(s):  
Ali Han ◽  
Huanlin Chen ◽  
Zijun Sun ◽  
Jun Xu ◽  
Pingwu Du
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
High Catalytic Activity ◽  
Nickel Phosphide ◽  
Catalyst Precursor ◽  
Metal Free ◽  
Water Oxidation Catalysis ◽  
First Time

For the first time, noble-metal-free nickel phosphide (Ni2P) was used as an excellent catalyst precursor for water oxidation catalysis.

One-pot synthesis of sulfur doped activated carbon as a superior metal-free catalyst for the adsorption and catalytic oxidation of aqueous organics

2018 ◽  
Vol 6 (9) ◽  
pp. 4055-4067 ◽  
Author(s):  
Yaoping Guo ◽  
Zequan Zeng ◽  
Yongjin Liu ◽  
Zhanggen Huang ◽  
Yan Cui ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Catalytic Oxidation ◽  
Adsorption Ability ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Strong Adsorption

Sulfur doped activated carbon with strong adsorption ability and excellent catalytic activity is successfully synthesized through a one-pot process.

A noble-metal-free nanocatalyst for highly efficient and complete hydrogen evolution from N2H4BH3

2018 ◽  
Vol 6 (10) ◽  
pp. 4386-4393 ◽  
Author(s):  
Qilu Yao ◽  
Zhang-Hui Lu ◽  
Rui Zhang ◽  
Shiliang Zhang ◽  
Xiangshu Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Hydrogen Generation ◽  
Metal Free ◽  
Highly Efficient

A noble-metal-free catalyst has been firstly developed to achieve excellent catalytic activity and 100% H2 selectivity toward hydrogen generation from hydrazine borane.

Tethered sensitizer–catalyst noble-metal-free molecular devices for solar-driven hydrogen generation

2018 ◽  
Vol 47 (44) ◽  
pp. 15633-15645 ◽  
Author(s):  
Geng-Geng Luo ◽  
Zhong-Hua Pan ◽  
Jin-Qing Lin ◽  
Di Sun
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Hydrogen Generation ◽  
Molecular Devices ◽  
Metal Free ◽  
Recent Advances ◽  
Abundant Element

Recent advances in the all-abundant-element molecular devices for solar-driven H2generationviaintramolecular processes are overviewed including their assembly approaches, and structure–catalytic activity relationships.

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