Single-atom catalysts(SACs)have attracted extensive attention in the field of heterogeneous catalysis.However,the fabrication of SACs with high loading and hightemperature stability remains a grand challenge,especiall...Single-atom catalysts(SACs)have attracted extensive attention in the field of heterogeneous catalysis.However,the fabrication of SACs with high loading and hightemperature stability remains a grand challenge,especially on oxide supports.In this work,we have demonstrated that through strong covalent metal-support interaction,highloading and thermally stable single-atom Pt catalysts can be readily prepared by using Fe modified spinel as support.Better catalytic performance in N_(2)O decomposition reaction is obtained on such SACs than their nanocatalyst counterpart and low-surface-area Fe_(2)O_(3)supported Pt SACs.This work provides a strategy for the fabrication of high-loading and thermally stable SACs for applications at high temperatures.展开更多
基金supported by the National Key Projects for Fundamental Research and Development of China(2016YFA0202801)the National Natural Science Foundation of China(21673226+3 种基金91645203 and 21590792)the“Transformational Technologies for Clean Energy and Demonstration”the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA21040200 and XDB17000000)supported by the Tsinghua Xuetang Talents Program
文摘Single-atom catalysts(SACs)have attracted extensive attention in the field of heterogeneous catalysis.However,the fabrication of SACs with high loading and hightemperature stability remains a grand challenge,especially on oxide supports.In this work,we have demonstrated that through strong covalent metal-support interaction,highloading and thermally stable single-atom Pt catalysts can be readily prepared by using Fe modified spinel as support.Better catalytic performance in N_(2)O decomposition reaction is obtained on such SACs than their nanocatalyst counterpart and low-surface-area Fe_(2)O_(3)supported Pt SACs.This work provides a strategy for the fabrication of high-loading and thermally stable SACs for applications at high temperatures.
