文献类型：期刊文献

英文题名：Acetylene carbonylation over Ni-containing catalysts: role of surface structure and active site distribution

作者：Xie, Hao[1];Lin, Tiejun[1];Shi, Li[1];Meng, Xuan[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：6

期号：99

起止页码：97285

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20164302936275);WOS:【SCI-EXPANDED(收录号:WOS:000386242500103)】；

基金：We are grateful for financial support from the Young Scientific Talents Sail Plan of Shanghai City [15YF1403000] and Special Fund of Fundamental Research and Exploration [22A201514014].

语种：英文

外文关键词：Inductively coupled plasma - Carboxylic acids - Lighting - Acetylene - Catalyst activity - Carbonylation - Atomic emission spectroscopy - Surface structure

摘要：Heterogenization of homogeneous catalyst for acetylene carbonylation was carried out by preparing a series of Ni-modified catalysts (Ni-ZSM-5, Ni-IM-5 and Ni-MCM-41). Several important properties of the heterogeneous catalysts were determined by inductively coupled plasma atomic emission spectroscopy (ICP-AES), XPS, XRD, N-2 adsorption, pyridine-FTIR, SEM and TGA. Moreover, we used various activity criteria to dissipate perturbing factors, when we focused on the influence of surface structure and active site distribution. The result that Ni-IM-5 had the greatest TOFNi = 5107 g acrylic acid per g Ni per h showed that the surface structure of samples did not influence the catalyst performance significantly. In addition, the highest ratio of nickel sites/acid sites in Ni-MCM-41 represented the best active site distribution. Thus, Ni-MCM-41 has the highest TOFcat = 70.6 g acrylic acid per g cat. per h. Furthermore, stability testing of the catalysts showed the Ni-MCM-41 could be used four times, while others only twice.