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Featured researches published by Wei Mao.


RSC Advances | 2016

Atom-economical synthesis of 3,3,3-trifluoropropanal dialkyl acetals through Pd/C catalyzed acetalization of 3,3,3-trifluoropropene

Jianping Kang; Ju-You Lu; Yang Li; Zhixuan Wang; Wei Mao; Jian Lu

A facile and efficient procedure for one-step synthesis of 3,3,3-trifluoropropanal dialkyl acetals from readily available 3,3,3-trifluoropropene (TFP) has been developed. The catalyst can be recycled for 4 times without obvious deactivation. This process provides a novel and atom-economical synthetic strategy for the preparation of functional CF3-containing compounds.


Chemcatchem | 2017

Highly selective dehydrochlorination of 1,1,1,2‐tetrafluoro‐2‐chloropropane to 2,3,3,3‐tetrafluoropropene over alkali metal fluoride modified MgO catalysts

Wei Mao; Yanbo Bai; Wei Wang; Bo Wang; Qiang Xu; Lei Shi; Chen Li; Jian Lu

Gas‐phase selective dehydrochlorination of 1,1,1,2‐tetrafluoro‐2‐chloropropane (HCFC‐244bb) to 2,3,3,3‐tetrafluoropropene was investigated over various K and Cs halides modified MgO catalysts. The reaction proceeded in the absence of additives such as air and HF. High dehydrochlorination selectivity (>97 %) with moderate activity (>14 μmol h−1 m−2) was achieved on KF and CsF modified MgO catalysts, in which the dehydrofluorination process was inhibited. Compared with alkali metal modified MgO, the dehydrofluorination product, 2‐chloro‐3,3,3‐trifluoropropene increased over Zr and Al modified MgO and fluorinated MgO catalysts (sel. of 20–76 %). XRD and energy‐dispersive‐spectrometry results revealed that surface chlorination and fluorination occurred on the MgO‐based catalysts during the reaction. Introducing alkali metal fluorides into the catalyst can reduce the fluorination of MgO and the deposition of chlorine species, thus improving the dehydrochlorination activity and stability of MgO. The NH3 temperature‐programmed desorption (TPD) results show that decreasing the surface acidity of catalyst benefits the dehydrochlorination of HCFC‐244bb, whereas the relationship between the basicity of the catalyst and its dehydrohalogenation behavior is complicated as shown by the CO2 TPD results. According to the hard–soft acid–base principle, the dehydrohalogenation selectivity can be correlated with the surface chemical hardness of the catalyst.


Journal of Chemical & Engineering Data | 2014

Experimental Study of Saturated Pressure Measurements for 2,3,3,3-Tetrafluoropropene (HFO-1234yf) and 2-Chloro-1,1,1,2-Tetrafluoropropane (HCFC-244bb)

Zhi-qiang Yang; Liangang Kou; Wei Mao; Jing Lu; Wei Zhang; Jian Lu


Applied Catalysis A-general | 2015

Catalytic gas-phase fluorination of 1,1,2,3-tetrachloropropene to 2-chloro-3,3,3-trifluoropropene over the fluorinated Cr2O3-based catalysts

Wei Mao; Liangang Kou; Bo Wang; Yanbo Bai; Wei Wang; Jian Lu


Catalysis Communications | 2014

Selective gas-phase catalytic fluorination of 1,1,2,3-tetrachloropropene to 2-chloro-3,3,3-trifluoropropene

Wei Mao; Bo Wang; Yangbo Ma; Wei Zhang; Yongmei Du; Yue Qin; Jianping Kang; Jian Lu


Applied Catalysis B-environmental | 2017

A facile sol-gel synthesis of highly active nano α-aluminum fluoride catalyst for dehydrofluorination of hydrofluorocarbons

Wei Mao; Yanbo Bai; Bo Wang; Wei Wang; Hui Ma; Yue Qin; Chen Li; Jian Lu; Zhong-Wen Liu


Fluid Phase Equilibria | 2016

Isothermal vapor–liquid equilibria measurements for binary systems of 2,3,3,3-tetrafluoropropene (HFO-1234yf) + 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) + 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb)

Zhi-qiang Yang; Liangang Kou; Jing Lu; Wei Zhang; Wei Mao; Jian Lu


Fluid Phase Equilibria | 2016

Vapor-liquid equilibria of 2,3,3,3-tetrafluoropropene (HFO-1234yf) + 1,1,1,2,2-pentafluoropropane (HFC-245cb) system

Zhi-qiang Yang; Liangang Kou; Sheng Han; Chen Li; Zhijun Hao; Wei Mao; Wei Zhang; Jian Lu


Archive | 2012

Preparation method for 3,3,3-trifluoropropionaldehyde dimethoxyethane

Jianping Kang; Jian Lv; Yongmei Du; Jijun Zeng; Wei Mao; Wei Zhang; Yujie Gu


Journal of Chemical & Engineering Data | 2015

Isothermal Vapor–Liquid Equilibrium for the Binary System of 2,3,3,3-Tetrafluoropropene and 2-Chloro-1,1,1,2-tetrafluoropropane

Zhi-qiang Yang; Liangang Kou; Wei Mao; Jing Lu; Wei Zhang; Jian Lu

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Jian Lu

Shaanxi Normal University

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Wei Wang

Southeast University

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Yang Li

Shaanxi Normal University

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Zhong-Wen Liu

Shaanxi Normal University

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