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Microfluidic dual loops reactor for conducting a multistep reaction
Si Hyung Jin, Jae-Hoon Jung, Seong-Geun Jeong, Jongmin Kim, Tae Jung Park, Chang-Soo Lee
《化学科学与工程前沿(英文)》 2018年 第12卷 第2期 页码 239-246 doi: 10.1007/s11705-017-1680-9
关键词: microfluidics multistep reaction rotary mixing nanoparticle
瑞德西韦核碱基单元的连续流合成 Article
郭永兴, 刘敏杰, 姜梅芬, 陶媛, 程荡, 陈芬儿
《工程(英文)》 2023年 第21卷 第2期 页码 92-100 doi: 10.1016/j.eng.2021.07.029
本研究通过五步连续流合成了抗病毒药物瑞德西韦的核碱基单元7-溴吡咯[2,1-f][1‒2,4]三嗪-4-胺。采用间歇式合成化学方法,利用广泛可用且廉价的起始原料吡咯,通过顺序流动操作成功生产了7-溴吡咯[2,1-f][1‒2,4]三嗪-4-胺。在最佳流动条件下,7-溴吡咯[2,1-f][1‒2,4]三嗪-4-胺的分离收率为14.1%,总停留时间为79 min,通量为2.96 g∙h−1,总停留时间明显短于批处理程序中消耗的总时间(大于26.5 h)。在流动中,有利地促进了涉及危险和不稳定的中间体的高度放热的Vilsmeier-Haack 和N-胺化反应、氧化液-液双相转化及需要严格低温条件的溴化反应。这种合成方法的显著特点是,通过部署专用设备和分离单元,将后处理程序完全集成到反应序列中,从而形成一个精简的连续流系统,最大限度地提高整个过程的效率。该方法是一种更环保、更可持续的高效、安全地制备核碱基单元的方法。
Multistep conversion of cresols by phenol hydroxylase and 2,3-dihydroxy-biphenyl 1,2-dioxygenase
Shengnan SHI,Fang MA,Tieheng SUN,Ang LI,Jiti ZHOU,Yuanyuan QU
《环境科学与工程前沿(英文)》 2014年 第8卷 第4期 页码 539-546 doi: 10.1007/s11783-013-0616-y
关键词: multistep conversion cresols phenol hydroxylase 2 3-dihydroxybiphenyl 1 2-dioxygenase methylcatechols
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1700-1712 doi: 10.1007/s11705-022-2207-6
关键词: naphtha catalytic pyrolysis reaction pathway equilibrium yield
Heterogeneous reaction mechanism of gaseous HNO
Nan ZHAO,Qingzhu ZHANG,Wenxing WANG
《环境科学与工程前沿(英文)》 2016年 第10卷 第5期 doi: 10.1007/s11783-016-0836-z
关键词: Seasalt particles NaCl HNO3 Heterogeneous reaction Reaction mechanism Density functional theory
Dual-reaction-center catalytic process continues Fenton’s story
Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu
《环境科学与工程前沿(英文)》 2020年 第14卷 第5期 doi: 10.1007/s11783-020-1261-x
关键词: Dual reaction centers Fenton Pollutant utilization Electron transfer
《化学科学与工程前沿(英文)》 2021年 第15卷 第6期 页码 1487-1499 doi: 10.1007/s11705-021-2085-3
关键词: MOF derivative graphene electrocatalyst oxygen reduction reaction oxygen evolution reaction hydrogen evolution reaction
Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG
《农业科学与工程前沿(英文)》 2018年 第5卷 第3期 页码 321-329 doi: 10.15302/J-FASE-2017182
As one of the dominant reactions occurring during thermal treatment of food, the Maillard reaction not only leads to the formation of aroma, browning color and taste compounds, but also contributes to the formation of some unpleasant toxic substances including acrylamide, heterocyclic amines and advanced glycation end products. Polyphenols, one of the most abundant antioxidants in the human diet, are contained in different kinds of foods. In this review, some recent studies on the impact of dietary polyphenols on the formation of acrylamide, heterocyclic amines and advanced glycation end products formed during the Maillard reaction are summarized, including the research work conducted with both chemical model systems and real food model systems; the possible inhibitory mechanisms of different polyphenols are also summarized and discussed in this review. Basically we found that some dietary polyphenols not only scavenge free radicals, but also react with reactive carbonyl species, thus lowering the formation of toxic Maillard reaction products. This review provides a useful theoretical foundation for the application of polyphenols in food safety, and suggests some directions for further study of natural products as inhibitors against the formation of toxic substances in thermally processed food.
关键词: advanced glycation end products acrylamide food safety heterocyclic amine Maillard reaction polyphenols
An overview and recent advances in electrocatalysts for direct seawater splitting
《化学科学与工程前沿(英文)》 2021年 第15卷 第6期 页码 1408-1426 doi: 10.1007/s11705-021-2102-6
关键词: seawater splitting electrocatalysts oxygen evolution reaction hydrogen evolution reaction chlorine chemistry
《化学科学与工程前沿(英文)》 2022年 第16卷 第3期 页码 376-383 doi: 10.1007/s11705-021-2062-x
关键词: interface engineering CoS/CeO2 electrodeposition electrocatalyst oxygen evolution reaction
《化学科学与工程前沿(英文)》 2023年 第17卷 第5期 页码 570-580 doi: 10.1007/s11705-022-2247-y
关键词: bimetallic metal–organic frameworks bifunctional electrocatalyst density functional theory oxygen reduction reaction oxygen evolution reaction
Shenghua Ye, Gaoren Li
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 473-480 doi: 10.1007/s11705-018-1724-9
The polypyrrole(PPy)@NiCo hybrid nanotube arrays have been successfully fabricated as a high performance electrocatalyst for hydrogen evolution reaction (HER) in alkaline solution. The strong electronic interactions between PPy and NiCo alloy are confirmed by X-ray photoelectron spectroscopy and Raman spectra. Because these interations can remarkably reduce the apparent activation energy (Ea) for HER and enhance the turnover frequency of catalysts, the electrocatalytic performance of PPy@NiCo hybrid nanotube arrays are significantly improved. The electrochemical tests show that the PPy@NiCo hybrid catalysts exhibit a low overpotential of ~186 mV at 10.0 mA·cm−2 and a small tafel slope of 88.6 mV·deg−1 for HER in the alkaline solution. The PPy@NiCo hybrid nanotubes also exhibit high catalytic activity and high stability for HER.
关键词: NiCo alloy polypyrrole hybrid nanotube electrocatalyst hydrogen evolution reaction
Shenghua Ye, Gaoren Li
《化学科学与工程前沿(英文)》 2019年 第13卷 第4期 页码 845-845 doi: 10.1007/s11705-019-1879-z
Kinetics of pozzolanic reaction for preparation of flue gas desulfurizer from fly ash and Ca(OH)2
WANG Jingang, HU Jinbang, WANG Daobin, DUAN Zhenya
《化学科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 266-270 doi: 10.1007/s11705-007-0048-y
关键词: comparison calculated pozzolanic reaction precision preparation
标题 作者 时间 类型 操作
Microfluidic dual loops reactor for conducting a multistep reaction
Si Hyung Jin, Jae-Hoon Jung, Seong-Geun Jeong, Jongmin Kim, Tae Jung Park, Chang-Soo Lee
期刊论文
Multistep conversion of cresols by phenol hydroxylase and 2,3-dihydroxy-biphenyl 1,2-dioxygenase
Shengnan SHI,Fang MA,Tieheng SUN,Ang LI,Jiti ZHOU,Yuanyuan QU
期刊论文
Thermodynamic analysis of reaction pathways and equilibrium yields for catalytic pyrolysis of naphtha
期刊论文
Dual-reaction-center catalytic process continues Fenton’s story
Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu
期刊论文
Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional electrocatalysts
期刊论文
Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products
Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG
期刊论文
Interface engineering for enhancing electrocatalytic oxygen evolution reaction of CoS/CeO heterostructures
期刊论文
cluster-based organic frameworks as highly active electrocatalysts for oxygen reduction and oxygen evolution reaction
期刊论文
Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction
Shenghua Ye, Gaoren Li
期刊论文
Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction
Shenghua Ye, Gaoren Li
期刊论文