Research Progress on Microreactor Technology in oxidation reactions

2021 ◽  
Vol 25 ◽  
Author(s):  
Jian Chen ◽  
Mengjing Zhu ◽  
Fuwei Xianga ◽  
Junfeng Li ◽  
Hongjun Yang ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Heat Transfer Performance ◽  
Structural Characteristics ◽  
Research Progress ◽  
Oxidation Reactions ◽  
Olefin Oxidation ◽  
Precise Control ◽  
Safety Production ◽  
Microreactor Technology ◽  
Mass And Heat Transfer

: In recent years, the development of the chemical industry has been moving in a green, safe and efficient direction. Oxidation reactions are one of the most important types of reaction, and have key applications in food, medicine, and cosmetics, petrochemicals. However, the occurrence of the oxidation reaction is accompanied by a strong exothermic phenomenon, and improper control can easily lead to safety problems and even explosions. The realization of an environmentally friendly oxidation reaction is a key industrial milestone. The unique structural characteristics of microreactors result in good mass and heat transfer performance, precise control of the reaction temperature, reduced risk of explosion, improved safety production and selectivity of products. These unique advantages of the microreactor determine its significant application value in oxidation reactions. In this paper, the research progress of several typical oxidation reactions including alkane oxidation, alcohol oxidation, aldosterone oxidation, aromatics oxidation and olefin oxidation combined with microreactors is reviewed systematically.

Green Application of Phase-Transfer Catalysis in Oxidation: A Comprehensive Review

2020 ◽  
Vol 17 (4) ◽  
pp. 405-411
Author(s):  
Chuan-Hui Wang ◽  
Chen-Fu Liu ◽  
Guo-Wu Rao
Keyword(s):  
Organic Chemistry ◽  
Green Chemistry ◽  
Oxidation Reaction ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Important Application ◽  
Oxidation Reactions ◽  
Comprehensive Review ◽  
Phase Transfer Catalysts ◽  
Onium Salts

Oxidation reactions have emerged as one of the most versatile tools in organic chemistry. Various onium salts such as ammonium, phosphonium, arsonium, bismuthonium, tellurium have been used as phase transfer catalysts in many oxidation reactions. Certainly, considerable catalysts have been widely used in Phase-Transfer Catalysis (PTC). This review focuses on the application of PTC in various oxidation reaction. Furthermore, PTC also conforms to the concept of “Green Chemistry”. <p></p> • Oxidation has become one of the most widely used tools in organic chemistry and phase transfer catalysts has been widely used in oxidation. <p></p> • The application of phase transfer catalysts in oxidation reaction will be summarized. <p></p> • Phase transfer catalysts have important application in various oxidation reaction.

scholarly journals Recent Developments of Antimony-Based Anodes for Sodium- and Potassium-Ion Batteries

2021 ◽  
Author(s):  
Bochao Chen ◽  
Ming Liang ◽  
Qingzhao Wu ◽  
Shan Zhu ◽  
Naiqin Zhao ◽  
...  
Keyword(s):  
Structural Characteristics ◽  
Low Cost ◽  
Potassium Ion ◽  
Research Progress ◽  
Research Directions ◽  
Weak Charge ◽  
Recent Developments ◽  
High Theoretical Capacity ◽  
Further Development ◽  
Sodium And Potassium

AbstractThe development of sodium-ion (SIBs) and potassium-ion batteries (PIBs) has increased rapidly because of the abundant resources and cost-effectiveness of Na and K. Antimony (Sb) plays an important role in SIBs and PIBs because of its high theoretical capacity, proper working voltage, and low cost. However, Sb-based anodes have the drawbacks of large volume changes and weak charge transfer during the charge and discharge processes, thus leading to poor cycling and rapid capacity decay. To address such drawbacks, many strategies and a variety of Sb-based materials have been developed in recent years. This review systematically introduces the recent research progress of a variety of Sb-based anodes for SIBs and PIBs from the perspective of composition selection, preparation technologies, structural characteristics, and energy storage behaviors. Moreover, corresponding examples are presented to illustrate the advantages or disadvantages of these anodes. Finally, we summarize the challenges of the development of Sb-based materials for Na/K-ion batteries and propose potential research directions for their further development.

Trimetallic PtNiCo branched nanocages as efficient and durable bifunctional electrocatalysts towards oxygen reduction and methanol oxidation reactions

2021 ◽  
Author(s):  
hengrui Ma ◽  
Zhiping Zheng ◽  
Hongsheng Zhao ◽  
Cong Shen ◽  
Hanming Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Reduction Reaction ◽  
Great Promise ◽  
Methanol Oxidation Reaction ◽  
Oxidation Reactions ◽  
Bifunctional Electrocatalysts ◽  
Composition And Structure

Engineering the composition and structure of Pt-based alloy electrocatalysts has exhibited great promise for enhancing activity and durability in oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR). However, it...

The effect of a vitamin B12 based catalyst on hydrogen peroxide oxidation reactions and the performance evaluation of a membraneless hydrogen peroxide fuel cell under physiological pH conditions

2020 ◽  
Vol 8 (8) ◽  
pp. 2749-2755 ◽  
Author(s):  
Jungyeon Ji ◽  
Yongjin Chung ◽  
Yongchai Kwon
Keyword(s):  
Hydrogen Peroxide ◽  
Performance Evaluation ◽  
Fuel Cell ◽  
Vitamin B12 ◽  
Oxidation Reaction ◽  
Oxidation Reactions ◽  
Peroxide Oxidation ◽  
Hydrogen Peroxide Oxidation ◽  
Ph Conditions ◽  
Anodic Catalyst

A new anodic catalyst (CNT/VitB12) is introduced for promoting the hydrogen peroxide oxidation reaction (HPOR) and the performance of a membraneless hydrogen peroxide fuel cell (HPFC).

A facile approach to constructing Pd@PCN–Se nano-composite catalysts for selective alcohol oxidation reactions

2019 ◽  
Vol 7 (18) ◽  
pp. 10918-10923 ◽  
Author(s):  
Kuanhong Cao ◽  
Xin Deng ◽  
Tian Chen ◽  
Qitao Zhang ◽  
Lei Yu
Keyword(s):  
Surface Area ◽  
Oxidation Reaction ◽  
Carbon Nitride ◽  
Alcohol Oxidation ◽  
Pd Nanoparticles ◽  
Oxidation Reactions ◽  
Structure Directing Agent ◽  
Nano Composite ◽  
Composite Catalysts ◽  
Polymeric Carbon

By using Se as structure-directing agent, the surface area and total mesoporous volume of polymeric carbon nitride (PCN) could be obviously enhanced. The PCN-Se material was a better support for Pd nanoparticles, which could catalyze the alcohol oxidation reaction with broad substrate scope.

Nickel nanocrystal/nitrogen-doped carbon composites as efficient and carbon monoxide-resistant electrocatalysts for methanol oxidation reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21687-21694 ◽  
Author(s):  
Na Wu ◽  
Meixu Zhai ◽  
Fei Chen ◽  
Xue Zhang ◽  
Ruihong Guo ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Low Cost ◽  
Methanol Oxidation Reaction ◽  
Carbon Composites ◽  
Oxidation Reactions ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Cost Efficient ◽  
Nitrogen Doped Carbon

Owing to its facile synthesis, outstanding activity and high stability, Ni/N–C@500 composite is promising as a low-cost, efficient and CO-resistant electrocatalyst for methanol oxidation reaction (MOR).

Tribocatalytic Enhancement of Methane Oxidation

2005 ◽  
Author(s):  
Tomotaka Abe ◽  
Ken’ichi Hiratsuka ◽  
Czesław Kajdas
Keyword(s):  
Organic Chemistry ◽  
Carbon Monoxide ◽  
Catalytic Activity ◽  
Aluminum Oxide ◽  
Electron Emission ◽  
Oxidation Reaction ◽  
Negative Ion ◽  
Silver Catalyst ◽  
Oxidation Reactions ◽  
Action Mechanism

Oxidation reaction of methane is one of the most fundamental reactions in organic chemistry. This reaction is enhanced by silver catalyst [1]. In this study, we confirmed that the catalytic activity of silver is enhanced more by the friction. This effect is called tribocatalysis. In previous studies about tribocatalysis, we have shown that the oxidation reactions of hydrogen [2], carbon monoxide [3] and ethylene were promoted by the friction. According to NIRAM (negative-ion-radical action mechanism) approach, exo-electron emission triggers the promotion of chemical reactions [4]. Insulator such as aluminum oxide, when it is worn, emits larger number of negative particles including electrons compared with metals [5]. Therefore we expected that the friction of aluminum oxide promotes tribochemical reactions more than metals.

Sign in / Sign up

Export Citation Format

Share Document