Boosting methylcyclohexane dehydrogenation over Pt-based structured catalysts by internal electric heating

作     者：Wenhan Wang Guoqing Cui Cunji Yan Xuejie Wang Yang Yang Chunming Xu Guiyuan Jiang Wenhan Wang;Guoqing Cui;Cunji Yan;Xuejie Wang;Yang Yang;Chunming Xu;Guiyuan Jiang

作者机构：State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(Beijing)Beijing 102249China Institute of Electrical EngineeringChinese Academy of SciencesBeijing 100190China Haihe Laboratory of Sustainable Chemical TransformationsTianjin 300192China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第10期

页      面：12215-12222页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(Nos.22225807,21961132026,21878331,22021004,and 22109177) the National Key Research and Development Program(Nos.2020YFA0210903 and 2021YFA1501304) the PetroChina research institute of petroleum processing program(Nos.PRIKY21057 and PRIKY 21199) the Fundamental Research Funds for the Central Universities(No.2462020BJRC008) the support of Energy Internet Research Center,China University of Petroleum(Beijing),Haihe Laboratory of Sustainable Chemical Transformations(No.CYZC202105) the Beijing Synchrotron Radiation Facility(BSRF) Shanghai Synchrotron Radiation Facility(SSRF)during the XAFS measurements at the beamline of 1W1B,1W2B,and BL11B 

主　　题：Pt/Al2O_(3)/Fe foam(FF)structured catalyst internal electrical heating hydrogen methylcyclohexane dehydrogenation heat transfer 

摘      要：Methylcyclohexane(MCH)serves as an ideal hydrogen carrier in hydrogen storage and transportation *** the continuous production of hydrogen from MCH dehydrogenation,the rational design of energy-efficient catalytic way with good performance remains an enormous ***,an internal electric heating(IEH)assisted mode was designed and proposed by the directly electrical-driven catalyst using the resistive heating *** Pt/Al2O_(3)on Fe foam(Pt/Al2O_(3)/FF)with unique threedimensional network structure was *** catalysts were studied in a comprehensive way including X-ray diffraction(XRD),scanning electron microscopy(SEM)-mapping,in situ extended X-ray absorption fine structure(EXAFS),and in situ COFourier transform infrared(FTIR)*** was found that the hydrogen evolution rate in IEH mode can reach up to above 2060 mmol·gPt^(−1)·min^(−1),which is 2–5 times higher than that of reported Pt based catalysts under similar reaction conditions in conventional heating(CH)*** combination with measurements from high-resolution infrared thermometer,the equations of heat transfer rate,and reaction heat analysis results,the Pt/Al2O_(3)/FF not only has high mass and heat transfer ability to promote catalytic performance,but also behaves as the heating component with a low thermal resistance and heat capacity offering a fast temperature response in IEH *** addition,the chemical adsorption and activation of MCH molecules can be efficiently facilitated by IEH mode,proved by the operando MCH-FTIR ***,the as-developed IEH mode can efficiently reduce the heat and mass transfer limitations and prominently boost the dehydrogenation performance,which has a broad application potential in hydrogen storage and other catalytic reaction processes.