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积炭是催化剂在催化反应过程中普遍发生的现象,尤其是在乙苯直接脱氢体系中,反应物乙苯分子在金属氧化物催化剂表面很容易快速的产生积炭,导致催化剂的失活。近期,中科院金属所沈阳材料科学国家(联合)实验室催化材料研究部刘洪阳副研究员和苏党生研究员,利用乙苯直接脱氢过程反应中的积炭过程,巧妙的设计了一种钯/碳复合催化剂(Pd/C)。该催化剂和传统的商业纳米碳管负载钯催化剂(Pd/CNT)相比,在催化性能和催化剂的抗烧结能力上有很大幅度的提升。
Coke deposition is a common phenomenon during the catalytic reaction. Especially in the direct dehydrogenation of ethylbenzene, the ethylbenzene reactant can easily and quickly deposit on the surface of the metal oxide catalyst, resulting in the deactivation of the catalyst. Recently, the Chinese Academy of Sciences Institute of Metals Shenyang Materials Science (Catalysis Laboratory) catalytic materials Liu Hongyang associate researcher and researcher Su Dangsheng, the use of ethylbenzene direct dehydrogenation reaction in the process of carbon deposition, clever design of a palladium / carbon Composite catalyst (Pd / C). Compared with the traditional commercial carbon nanotube-supported palladium catalyst (Pd / CNT), the catalyst has a great improvement on the catalytic performance and the anti-sintering ability of the catalyst.