Acceleration of Liquid-Solid Redox Reaction with a Magneto-Catalyzed Method

被引：4

作者：

Liu, Caixing ^{[1
,2
]}

Yang, Yang ^{[1
]}

Bian, Yuecheng ^{[1
,2
]}

Ma, Zongwei ^{[1
]}

Zhou, Chun ^{[1
]}

Chen, Qanwang ^{[1
,2
]}

Sun, Yuping ^{[1
,3
]}

Sheng, Zhigao ^{[1
]}

机构：

[1] Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[3] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2018年 / 122卷 / 37期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

FIELD; ELECTRODEPOSITION; MECHANISMS; KINETICS; IONS;

D O I：

10.1021/acs.jpcc.8b08514

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To accelerate the chemical reaction is a key issue in the studies of catalytic chemistry. Here, by taking liquid solid redox reaction Zn/CuSO4 as a model system, we present a remote and nontouched magneto-catalyzed method that can accelerate the chemical reaction efficiently. The effects from intensity (B) and intensity X gradient (BVB) of applied magnetic field are distinguished, and the dominant role played by the B has been confirmed. With B increasing, the more of Zn-Cu galvanic cells and the bigger area of Cu/Cu2+ interfacial could be realized via a magnetohydrodynamics effect, which were proved by both optical and electron microscopic observations. It was found that 22 times enhancement of reaction rate and 7700 J/mol reduction of activation energy were achieved when an 8.4 T magnetic field was applied. These observations provide a magneto-catalyzed method to modulate the chemical reaction.

引用

页码：21543 / 21547

页数：5

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