Formaldehyde Oxidation on Pd/TiO(2)Catalysts at Room Temperature: The Effects of Surface Oxygen Vacancies

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	Formaldehyde Oxidation on Pd/TiO(2)Catalysts at Room Temperature: The Effects of Surface Oxygen Vacancies
	Li, Yaobin; Wang, Chunying; Zhang, Changbin; He, Hong
刊名	TOPICS IN CATALYSIS
	2020-09
卷号	63 期号:9-10 页码:810-816
关键词	Oxygen vacancies Dispersion High temperature reduction Formaldehyde Catalytic oxidation
ISSN号	1022-5528
英文摘要	High reduction temperature generally induces the agglomeration of supported noble metals. Howerve, we found that high temperature reduction did not induce Pd particles sintering but improved Pd dispersion. Multiple methods were further carried out to illuminate the abnormal phenomenon. The results indicated more surface oxygen defects and diffusion of Pd particles were simultaneously induced by high temperature reduction. During diffusion process of Pd particles, they were trapped by the oxygen defects because of the strong metal-support interaction, which led to improvement of Pd dispersion on the Pd/TiO2-450R catalyst. In addition, more surface oxygen vacancies on the Pd/TiO2-450R catalyst resulted in more active sites of H2O activation to form abundant surface OH groups which further enhanced adsorbed O(2)activation and mobility, and then opening a more effective pathway for HCHO oxidation, which result in its high activity of Pd/TiO2-450R for ambient HCHO oxidation.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45077]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Li, Yaobin,Wang, Chunying,Zhang, Changbin,et al. Formaldehyde Oxidation on Pd/TiO(2)Catalysts at Room Temperature: The Effects of Surface Oxygen Vacancies[J]. TOPICS IN CATALYSIS,2020,63(9-10):810-816.
APA	Li, Yaobin,Wang, Chunying,Zhang, Changbin,&He, Hong.(2020).Formaldehyde Oxidation on Pd/TiO(2)Catalysts at Room Temperature: The Effects of Surface Oxygen Vacancies.TOPICS IN CATALYSIS,63(9-10),810-816.
MLA	Li, Yaobin,et al."Formaldehyde Oxidation on Pd/TiO(2)Catalysts at Room Temperature: The Effects of Surface Oxygen Vacancies".TOPICS IN CATALYSIS 63.9-10(2020):810-816.