Xu Yuebing, Chen Mengyao, Liu Bing, Jiang Feng, Liu Xiaohao
School of Chemical and Material Engineering, Jiangnan University, 214122 Wuxi, China.
Chem Commun (Camb). 2020 Apr 25;56(32):4396-4399. doi: 10.1039/d0cc01345e. Epub 2020 Mar 27.
The different chemical states and locations of Ni species in HZSM-5 result in different directions of CH reaction. Supported Ni clusters caused complete CH decomposition, while Ni-exchanged sites anchored at Brønsted acid sites, can appropriately activate CH into CH species which are important precursors to produce aromatics. This study suggests a catalyst construction strategy for selective conversion of CH towards value-added chemicals by placing active metal at specific sites.
HZSM-5中镍物种的不同化学状态和位置导致了CH反应的不同方向。负载型镍簇导致CH完全分解，而锚定在布朗斯台德酸位点上的镍交换位点能将CH适度活化成CH物种，这些物种是生产芳烃的重要前体。本研究提出了一种通过将活性金属置于特定位点来实现CH向增值化学品选择性转化的催化剂构建策略。
