期刊
MATERIALS LETTERS
卷 237, 期 -, 页码 126-129出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.11.094
关键词
Hierarchical structure; Hollow Co3O4 nanofibers; Double walls; CO oxidation
资金
- National Natural Science Foundation of China [21473027]
- Opening Fund of State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
Tailoring morphology of the support is considered to be an effective way to tune the physicochemical properties of the catalysts. Herein, we have developed a rational strategy combining of electrospinning, hydrothermal and annealing method for the first time to design well-defined hierarchical double-walled Co3O4 hollow nanofibers (CHNFs). This special tailored complicated wall structure leads to a large specific surface area, increased substrate adsorption, and improved mass transfer of reactive species, which can be employed as an ideal support for loading high-dispersed ultrafine Pt nanoparticles (PtNPs). Such a PtNPs/CHNFs catalyst exhibits an excellent catalytic activity and stability toward CO oxidation. (C) 2018 The Authors. Published by Elsevier B.V.
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