在电场中，甲烷在TiO/ZSM-5核壳颗粒上转化为碳和碳氢化合物。
Conversion of methane to C and C hydrocarbons over TiO/ZSM-5 core-shell particles in an electric field.
作者信息
Han Qiao, Tanaka Atsuhiro, Matsumoto Masayuki, Endo Akira, Kubota Yoshihiro, Inagaki Satoshi
机构信息
Division of Materials Science and Chemical Engineering, Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi Tsukuba 305-8565 Japan.
出版信息
RSC Adv. 2019 Oct 29;9(60):34793-34803. doi: 10.1039/c9ra06927e. eCollection 2019 Oct 28.
Catalytic conversion of methane (CH) to light olefins is motivated by increasing recoverable reserves of methane resources, abundantly available in natural gas, shale gas, and gas hydrates. The development of effective processes for conversion of CH to light olefins is still a great challenge. The interface of ZSM-5 zeolite and TiO nanoparticles is successfully constructed in their core-shell particles mechanochemical treatment with high shear stress. The oxidative coupling of methane at a low temperature under application of an electric field may be induced by the O activation electrons running through the surface of TiO located at the interface of TiO and zeolite particles. Moreover, CH was also produced by the ethylene to propylene (ETP) reaction catalyzed by Brønsted acid sites in the ZSM-5 zeolite within core-shell particles.
甲烷（CH₄）向轻质烯烃的催化转化受到天然气、页岩气和天然气水合物中甲烷资源可采储量不断增加的推动。开发将CH₄转化为轻质烯烃的有效工艺仍然是一个巨大的挑战。通过高剪切应力的机械化学处理，在其核壳颗粒中成功构建了ZSM-5沸石与TiO₂纳米颗粒的界面。在电场作用下，位于TiO₂与沸石颗粒界面处的TiO₂表面上运行的电子对O的活化可能会引发低温下的甲烷氧化偶联反应。此外，核壳颗粒内ZSM-5沸石中的布朗斯台德酸位点催化的乙烯制丙烯（ETP）反应也生成了CH₄。
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