TY - JOUR
T1 - A General Strategy for Fabricating Isolated Single Metal Atomic Site Catalysts in y Zeolite
AU - Liu, Yiwei
AU - Li, Zhi
AU - Yu, Qiuying
AU - Chen, Yanfei
AU - Chai, Ziwei
AU - Zhao, Guofeng
AU - Liu, Shoujie
AU - Cheong, Weng Chon
AU - Pan, Yuan
AU - Zhang, Qinghua
AU - Gu, Lin
AU - Zheng, Lirong
AU - Wang, Yu
AU - Lu, Yong
AU - Wang, Dingsheng
AU - Chen, Chen
AU - Peng, Qing
AU - Liu, Yunqi
AU - Liu, Limin
AU - Chen, Jiesheng
AU - Li, Yadong
N1 - Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/6/12
Y1 - 2019/6/12
N2 - Exploring high-performance zeolite-supported metal catalysts is of great significance. Herein, we develop a strategy for fabricating isolated single metal atomic site catalysts in Y zeolite (M-ISAS@Y, M = Pt, Pd, Ru, Rh, Co, Ni, Cu) by in situ separating and confining a metal-ethanediamine complex into β-cages during the crystallization process followed by thermal treatment. The M-ISAS are stabilized by skeletal oxygens of Y zeolite, and the crystallinity, porosity, and large surface area are well inherited in M-ISAS@Y. As a demonstration, acidic Pt-ISAS@Y is used for n-hexane isomerization involving consecutive catalytic dehydrogenation/hydrogenation on Pt-ISAS and isomerization on Brønsted acid sites. The turnover frequency value of Pt-ISAS reaches 727 h-1, 5 times more than Pt nanoparticles (∼3.5 nm), with a total isomer selectivity of more than 98%. This strategy provides a convenient route to fabricate promising zeolite-based M-ISAS catalysts for industrial applications.
AB - Exploring high-performance zeolite-supported metal catalysts is of great significance. Herein, we develop a strategy for fabricating isolated single metal atomic site catalysts in Y zeolite (M-ISAS@Y, M = Pt, Pd, Ru, Rh, Co, Ni, Cu) by in situ separating and confining a metal-ethanediamine complex into β-cages during the crystallization process followed by thermal treatment. The M-ISAS are stabilized by skeletal oxygens of Y zeolite, and the crystallinity, porosity, and large surface area are well inherited in M-ISAS@Y. As a demonstration, acidic Pt-ISAS@Y is used for n-hexane isomerization involving consecutive catalytic dehydrogenation/hydrogenation on Pt-ISAS and isomerization on Brønsted acid sites. The turnover frequency value of Pt-ISAS reaches 727 h-1, 5 times more than Pt nanoparticles (∼3.5 nm), with a total isomer selectivity of more than 98%. This strategy provides a convenient route to fabricate promising zeolite-based M-ISAS catalysts for industrial applications.
UR - https://www.scopus.com/pages/publications/85067029672
U2 - 10.1021/jacs.9b02936
DO - 10.1021/jacs.9b02936
M3 - 文章
C2 - 31117651
AN - SCOPUS:85067029672
SN - 0002-7863
VL - 141
SP - 9305
EP - 9311
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 23
ER -