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您的检索式：作者名="Xuefei Weng"
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| 1 | Propane dehydrogenation catalyzed by in-situ partially reduced zinc cations confined in zeolites显示文摘Propane dehydrogenation(PDH), employing Pt-or Cr-based catalysts, represents an emerging industrial route for propylene production. Due to the scarcity of platinum and the toxicity of chromium, alternative PDH catalysts are being pursued. Herein, we report the construction of Zn-containing zeolite catalysts,namely Zn@S-1, for PDH reaction. Well-isolated zinc cations are successfully trapped and stabilized by the Si-OH groups in S-1 zeolites via in-situ hydrothermal synthesis. The as-prepared Zn@S-1 catalysts exhibit good dehydrogenation activity, high propylene selectivity, and regeneration capability in PDH reaction under employed conditions. The in-situ partial reduction of zinc species is observed and the partially reduced zinc cations are definitely identified as the active sites for PDH reaction. | Linjun Xie Rui Wang Yuchao Chai Xuefei Weng Naijia Guan Landong Li | 2021 | Journal of Energy Chemistry2021，30，12： | 4 |
| 2 | Estimation of the relationship between remotely sensed anthropogenic heat discharge and building energy use显示文摘 | Yuyu Zhou Qihao Weng Kevin R. Gurney Yanmin Shuai Xuefei Hu | 2011 | ISPRS Journal of Photogrammetry and Remote Sensing2011，，： | 1 |
| 3 | Exploring the phase transformation in ZnO/Cu(111) model catalysts in CO_(2) hydrogenation显示文摘Sustainable methanol production via CO_(2) hydrogenation leads to increased interest in the understanding of active phase of Cu/ZnO/Al_(2)O_(3)(CZA) catalyst. Model catalysts of ZnO/Cu(111) with structures varied from two-dimensional planar to three-dimensional nanoparticles were prepared by atomic layer deposition(ALD) method. By combing scanning tunneling microscopy(STM) and X-ray photoelectron spectroscopy(XPS) at near-ambient pressure of CO_(2) hydrogenation, we reveal that the submonolayer ZnO/Cu(111) transformed into Cu-Zn alloy under 10 mbar CO_(2)/H_(2) at 493 K, and underwent a partial reoxidation during evacuation. The dynamic phase transformation of ZnO/Cu(111) may partly explain the existence of differences and apparently contradictory theories to account for the origin of active phase in CZA catalysts. | Rui Wang Hengwei Wang Xuefei Weng Jiuxiang Dai Zhongmiao Gong Changbao Zhao Junling Lu Yi Cui Xinhe Bao | 2021 | Journal of Energy Chemistry2021，30，9： | 0 |
| 4 | The study of the active surface for CO oxidation over supported Pd catalysts显示文摘CO oxidation was investigated on various powder oxide supported Pd catalysts by temperature-programmed reaction.The pre-reduced catalysts show significantly higher activities than the pre-oxidized ones.Model studies were performed to better understand the oxidation state,reactivities and stabilities of partially oxidized Pd surfaces under CO oxidation reaction conditions using an in situ infrared reflection absorption spectrometer(IRAS).Three O/Pd(100)model surfaces,chemisorbed oxygen covered surface,surface oxide and bulk-like surface oxide,were prepared and characterized by low-energy electron diffraction(LEED)and Auger electron spectroscopy(AES).The present work demonstrates that the oxidized palladium surface is less active for CO oxidation than the metallic surface,and is unstable under the reaction conditions with sufficient CO. | Xuefei Weng Xiang Yuan Huan Li Xiaokun Li Mingshu Chen Huilin Wan | 2015 | Science China Chemistry2015，58，1： | 0 |
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