文献类型：期刊文献

英文题名：Precisely deposited Pd on ZnO (002) facets derived from complex reduction strategy for methanol steam reforming

作者：Chen, Yue[1];Dai, Qiguang[1];Zhang, Qiyao[1];Huang, Yongmin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：47

期号：33

起止页码：14869

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20221311852319);WOS:【SCI-EXPANDED(收录号:WOS:000793522800008)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 21476071) and Research Centre of Analysis and Test of ECUST.

语种：英文

外文关键词：Methanol steam reforming; ZnO faceting; Complex reduction; Size controlling; PdZn alloy

摘要：Pd/ZnO catalysts are promising for onboard hydrogen production through methanol steam reforming (MSR), but their selectivity still requires improving. In this research, a flower-like spherical ZnO material with mainly exposed (002) facet was prepared through surfactantassisted hydrothermal method. The surfactant tartaric groups also serve as coordinating groups to adsorb Pd2 thorn to form a complex, which is further reduced to metallic Pd. By virtue of preferential adsorption of the surfactant on (002) facet, Pd particles are confined to (002) facet. The calcined PdO-ZnO-T-X catalyst shows highly dispersed PdO nanoparticles. Characterization results suggest that strong interaction between ZnO (002) facet and small PdO particles can facilitate complete PdO reduction and PdZn formation, and can effectively retard PdZn decomposition under oxidizing atmosphere. This research discloses structure-performance relationship of Pd/ZnO catalysts and provides a novel strategy for further improving their MSR performance. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.