Palladium-ytterbium bimetallic electrocatalysts supported on carbon black, titanium suboxide, or poly(diallyldimethylammonium chloride)-functionalized titanium suboxide towards methanol oxidation in alkaline media

doi:10.1007/s11581-018-2506-6

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Palladium-ytterbium bimetallic electrocatalysts supported on carbon black, titanium suboxide, or poly(diallyldimethylammonium chloride)-functionalized titanium suboxide towards methanol oxidation in alkaline media
	Gong, Yafeng 2,3; He, Yinghua 1; Li, An 4; Wang, Yi 3; Liu, Jiehua 2; Qi, Tao 3
刊名	IONICS
	2018-10
卷号	24 期号:10 页码:3085-3094
关键词	Pd-Yb/C Electrocatalysts Methanol oxidation Titaniumsuboxide Poly(diallyldimethylammonium chloride)
ISSN号	0947-7047
DOI	10.1007/s11581-018-2506-6
英文摘要	Palladium-ytterbium (Pd-Yb) bimetallic catalysts with different Pd/Yb ratios supported on carbon black (20%Pd-x%Yb/C, x = 0, 1, 5, 10, and 15) were prepared by a sodium borohydride reduction method. The 20%Pd-5%Yb/C catalyst exhibited the best electrocatalytic activity towards methanol oxidation in alkaline media. The improved electrocatalytic activity and stability of 20%Pd-5%Yb/C can be explained by a bi-functional mechanism. In addition, the higher content of metallic palladium caused by the addition of ytterbium also contributes to the better catalytic activity of the 20%Pd+5%Yb/C catalyst. In view of the good electrocatalytic performance of 20%Pd+5%Yb/C, the 20%Pd+5%Yb catalyst supported on titanium suboxide (20%Pd+5%Yb/Ti4O7) was prepared. However, the Pd-Yb particles supported on Ti4O7 were seriously agglomerated. To improve the dispersion status of alloy particles, the Ti4O7 was functionalized with poly(diallyldimethylammonium chloride) (Ti4O7-PDDA). Electrochemical characterizations showed that no matter Ti4O7 or Ti4O7-PDDA as supports, Pd-Yb catalysts exhibited better catalytic activity than 20%Pd-5%Yb/C. The improvement mainly results from the further increase of metallic Pd due to the presence of Ti4O7.
资助项目	973 Program[2015CB251303]
WOS研究方向	Chemistry ; Electrochemistry ; Physics
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000445155700017
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32440]
专题	石油化工学院
通讯作者	Wang, Yi; Liu, Jiehua
作者单位	1.Beijing Normal Univ, Expt High Sch, Beijing 100032, Peoples R China 2.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 4.Lanzhou Univ Technol, Dept Chem Engn, Coll Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Gong, Yafeng,He, Yinghua,Li, An,et al. Palladium-ytterbium bimetallic electrocatalysts supported on carbon black, titanium suboxide, or poly(diallyldimethylammonium chloride)-functionalized titanium suboxide towards methanol oxidation in alkaline media[J]. IONICS,2018,24(10):3085-3094.
APA	Gong, Yafeng,He, Yinghua,Li, An,Wang, Yi,Liu, Jiehua,&Qi, Tao.(2018).Palladium-ytterbium bimetallic electrocatalysts supported on carbon black, titanium suboxide, or poly(diallyldimethylammonium chloride)-functionalized titanium suboxide towards methanol oxidation in alkaline media.IONICS,24(10),3085-3094.
MLA	Gong, Yafeng,et al."Palladium-ytterbium bimetallic electrocatalysts supported on carbon black, titanium suboxide, or poly(diallyldimethylammonium chloride)-functionalized titanium suboxide towards methanol oxidation in alkaline media".IONICS 24.10(2018):3085-3094.