文献类型：期刊文献

英文题名：Efficient Methanol-to-Olefins Conversion Via Photothermal Effect Over TiN/SAPO-34 Catalyst

作者：Tao, Lei Zhang, Xueliang Song, Lizhu Hu, Huilin Liu, Lequan Ye, Jinhua Wang, Defa

第一作者：Tao, Lei

通信作者：Wang, DF[1]

机构：[1]Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, TJU NIMS Int Collaborat Lab,Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol,Minist Educ, 92 Weijin Rd, Tianjin 300072, Peoples R China;[2]Guizhou Inst Technol, Sch Mat & Met Engn, 1 Caiguan Rd, Guiyang 550003, Peoples R China;[3]Natl Inst Mat Sci NIMS, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

第一机构：Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, TJU NIMS Int Collaborat Lab,Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol,Minist Educ, 92 Weijin Rd, Tianjin 300072, Peoples R China

通信机构：corresponding author), Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, TJU NIMS Int Collaborat Lab,Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol,Minist Educ, 92 Weijin Rd, Tianjin 300072, Peoples R China.

年份：2022

卷号：152

期号：6

起止页码：1651-1659

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20213110712253);Scopus(收录号：2-s2.0-85111541869);WOS:【SCI-EXPANDED(收录号:WOS:000679270800001)】；

基金：This work was supported by the National Natural Science Foundation of China (51572191, 21633004).

语种：英文

外文关键词：MTO; Photothermal effect; Titanium nitride; SAPO-34; Bronsted acid sites

摘要：As one of the most promising routes for production of low-carbon olefins (e.g., ethene and propene etc.), methanol-to-olefins (MTO) reaction is influenced largely by the temperature. Noble metal (e.g., Au, Ag, etc.) nanoparticles are known to exhibit the localized surface plasmon resonance (LSPR) effect, which has been applied in photothermal reactions. Owing to the increased light absorption ability in near-infrared region, titanium nitride (TiN) nanoparticles exhibit a superior LSPR effect over noble metals. Herein, we report on the MTO reaction via photothermal effect over a series of TiN(x)/SAPO-34 (x = 0.5, 0.75, 1, 2, 5, 10, 13 wt%) catalysts prepared by a simple mechanical grinding method. The MTO reaction over TiN(x)/SAPO-34 was carried out under a 300 W xenon lamp irradiation. The MTO reactivity of TiN(x)/SAPO-34 was influenced by both the photothermal temperature from the LSPR effect of TiN nanoparticles and the Bronsted acid sites on SAPO-34, both of which were dependent on the loading amount of TiN nanopartiles. The synergistic effect of high photothermal temperature, sufficient Bronsted acid sites and moderate BET surface area gave rise to the optimal catalytic performance of MTO reaction over TiN(10)/SAPO-34, which exhibited a methanol conversion of 73.1% and an ethene selectivity of 62.5%.