Wang Chunzheng(Associate professor)

Published:2022-10-24Author:王兆兴Number of Visits:38

  


  Name:

Wang   Chunzheng


Academic Title:

Associate professor


Advisor Type:

Master supervisor


Department:

Department of Chemical Engineering


Research Interests:

Energy chemical engineering; Green   chemistry; Catalytic new material


E-Mail:

czwang@upc.edu.cn


Telephone:

455898418(QQ)


 

 

 


◎Educational Background


2012-2017, East China Normal University,College of Chemistry and Molecular   Engineering,Physical Chemistry,Doctor of Science

2007-2012, China University of Petroleum (East China),College of   Chemistry and Chemical Engineering,Chemical Engineering and Technology,Bachelor of Engineering






 

 

 

 


◎Work Experience


2017-2019, China University of Petroleum (East China),College of   Chemical Engineering,Postdoctor

2019-2021, China University of Petroleum (East China),College of   Chemical Engineering,Lecturer

2021-, China University of Petroleum (East China),College of   Chemistry and Chemical Engineering,Associate professor





 

 

 

 


◎Research Direction


[1] Highly active Pd containing EMT zeolite catalyst for indirect   oxidative carbonylation of methanol to dimethyl carbonate

Green and sustainable manufacture of valuable commercial chemicals based   on C1 chemistry   via one-carbon feedstocks from abundant carbon   resources such as shale gas and coal, is an emerging alternative to the   petroleum routes. Dimethyl carbonate (DMC) is a green, versatile compound which   can be used as a methylating and methoxycarbonylating agent, fuel additive,   electrolyte liquid carrier for lithium-ion batteries, as well as for polycarbonate and isocyanate syntheses.

Palladium containing EMT zeolite catalyst (Pd/EMT) was prepared and   used for the indirect oxidative carbonylation of methanol to dimethyl   carbonate (DMC). The EMT zeolite was employed as a new catalyst support and   compared with the conventional Pd containing FAU zeolite catalyst (Pd/FAU).   The Pd/EMT in contrast to the Pd/FAU catalyst exhibited high intrinsic   activity with the turnover frequency of 0.25 s-1vs. 0.11 s-1. The Pd/EMT catalyst showed high CO conversion   of 82% and DMC selectivity of 79%, that maintained for at least 130 h, while   the activity of the Pd/FAU catalyst rapidly deteriorated within 12 h. The   enhanced interactions between Pd and EMT zeolite inhibited the sintering of   palladium clusters and maintained the Pd2+ active sites in the   Pd/EMT catalyst. The stabilization of the mono-dispersed Pd clusters within   the EMT zeolite is paramount to the excellent performance of the catalyst for   the indirect oxidative carbonylation of methanol to DMC.

J. Energy Chem. 52 (2021) 191-201(IF=9.7)

https://www.sciencedirect.com/science/article/pii/S2095495620302849?via%3Dihub

[2]Mechanical pressure-mediated Pd active   sites formation in NaY zeolite catalysts for indirect oxidative carbonylation   of methanol to dimethyl carbonate

The structural transformation of metal-containing zeolite catalysts   subjected to mechanical compression is often disregarded in the preparation of   catalysts. Herein, the impact of the mechanical compression on the catalytic   active sites of Pd/NaY catalysts responsible for the indirect oxidative   carbonylation of methanol to dimethyl carbonate (DMC) has been disclosed. The DMC selectivity of the catalysts was found to   strongly depend on the mechanical-pressure applied, as the mechanical   pressure controlled the ratio of Pd(2+d)+ and Pdd+ species (0 <d£ 2) in the   catalysts. The mono-dispersed   Pd clusters (1.3 nm) in the Pd/NaY catalyst were   obtained under mechanical treatment of 300 MPa. This catalyst showed   high CO conversion of 89% and DMC selectivity of 83%, that maintained for at   least 150 h.Combining experimental and density functional   theory studies, we revealed that the Pdd+ rather than   the Pd(2+d)+ species   enhanced the adsorption of CO and CH3ONO   reactants and inhibited the decomposition of CH3ONO   reactant into byproducts, and thus enhanced the DMC selectivity.The mechanical pressure applied had a noticeable   effect on the structural features of the metal-containing zeolite catalysts,   but despite its importance, this aspect has been poorly considered in   the field of heterogenous catalysis.

J. Catal., 396 (2021) 269-280(IF=7.9)

https://www.sciencedirect.com/science/article/pii/S0021951721001135?via%3Dihub#s0070






 

 

 

 


◎Research Project


The research was supported by the Natural Science Foundation of China   (21908246, 21975285,U1862118), China Postdoctoral Science Foundation (2017M622311),   Fundamental Research Funds for the Central Universities (18CX02148A) and the   Sino-French International Laboratory (LIA) “Zeolites”.





 

 

 

 


◎Representative Papers and Patents


1. Paper

Ø     C. Wang, N. Xu, T.   Liu, W. Xu, H. Guo, Y. Li, P. Bai, X. Wu*, X. Gong, X. Liu*, S. Mintova*, Mechanical pressure-mediated Pd active sites   formation in NaY zeolite catalysts for indirect oxidative carbonylation of   methanol to dimethyl carbonate, J.   Catal., 2021, 396: 269-280.

Ø     C. Wang, W. Xu, Z.   Qin, H. Guo, X. Liu*, S. Mintova*, Highly active Pd containing EMT zeolite catalyst for indirect oxidative   carbonylation of methanol to dimethyl   carbonate, J. Energy Chem., 2021, 52: 191-201.

Ø     C. Wang, P. Chen, Y.   Li, G. Zhao, Y. Liu, Y. Lu*, In situ DRIFTS study of CO coupling to dimethyl oxalate over structured Al-fiber@ns-AlOOH@Pd catalyst,   J. Catal., 2016, 344: 173-183.

Ø     C. Wang, L. Han, P.   Chen, G. Zhao, Y. Liu, Y. Lu*, High-performance, low Pd-loading microfibrous-structured   Al-fiber@ns-AlOOH@Pd catalyst for CO coupling to dimethyl oxalate, J. Catal., 2016, 337: 145-156.

Ø     C. Wang*, W. Xu, Z.   Qin, X. Liu, S. Mintova, Low-temperature synthesis of α-alumina nanosheets on   microfibrous-structured Al-fibers for Pd-catalyzed CO oxidative coupling to dimethyl oxalate, Catal. Today, 2020,   354: 158-166.

Ø     C. Wang, Y. Jia, Z.   Zhang, G. Zhao*, Y. Liu, Y. Lu*, Role of PdCx species in Pd@PdCx/AlOOH/Al-fiber catalyst for   the CO oxidative coupling to dimethyl   oxalate, Appl. Surf. Sci., 2019, 478: 840-845.

Ø     C. Wang*, W. Xu, Z.   Qin, S. Mintova, Spontaneous galvanic deposition of nanoporous Pd on   microfibrous-structured Al-fibers for CO oxidative coupling to dimethyl oxalate, Catal. Commun.,   2019, 119: 39-41.

Ø     C. Wang, J. Ding, G.   Zhao, T. Deng, Y. Liu, Y. Lu*, Microfibrous-structured Pd/AlOOH/Al-fiber for CO coupling to dimethyl oxalate: Effect of   morphology of AlOOH nanosheet endogenously grown on Al-fiber, ACS Appl.   Mater. Interfaces, 2017, 9: 9795-9804.

Ø     C. Wang, L. Han, Q.   Zhang, Y. Li, G. Zhao, Y. Liu, Y. Lu*, Endogenous growth of 2D AlOOH nanosheets on a 3D Al-fiber network via   steam-only oxidation in application for forming structured catalysts, Green   Chem., 2015, 17: 3762-3765.





 

 

 

 


◎Representative Works


None




 

 

 

 


◎Awards and Honors


None





 

 

 

 


◎Courses Offered


Undergraduate:《Chemical reaction engineering》, 《Reactor design》





 

 

 

 


◎Student Training


1 PhD, 4   Master.




 

 

 

 


◎Part-time Academic Job


None