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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) | |||||
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◎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 | ||||||
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◎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 | ||||||
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◎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 | ||||||
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◎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”. | ||||||
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◎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. | ||||||
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◎Representative Works | ||||||
None | ||||||
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◎Awards and Honors | ||||||
None | ||||||
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◎Courses Offered | ||||||
Undergraduate:《Chemical reaction engineering》, 《Reactor design》 | ||||||
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◎Student Training | ||||||
1 PhD, 4 Master. | ||||||
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◎Part-time Academic Job | ||||||
None | ||||||
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