STUDY ON INTERMEDIATES AND MECHANISM FOR OXIDATION OF FORMIC ACID ON   PLATINUM ANODE

doi:10.3866/PKU.WHXB19880106

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	STUDY ON INTERMEDIATES AND MECHANISM FOR OXIDATION OF FORMIC ACID ON PLATINUM ANODE
	Zhang Huixin ; Wu Caiming ; Chen Xin ; Wu Shijie ; Li Zuojun
刊名	物理化学学报
	1988
DOI	10.3866/PKU.WHXB19880106
英文摘要	(1) The effect of pH on the cyclic voltammogram of platinum in HClO4 containing HCOOH and HCOONa mixture was observed, The results show that the shape of the cyclic voltammogram of platinum is similar in all eases, but the peak potentials decrease with the increase of pH (see Fig,), In addition, the oxidation peak for cathodic sweep consists of two sub-oxidation peaks which overlap each other and their current curves are coadjacent(see Fig.4). (2) The experiment suggested by Hazer' and Pletcher tol for the comparison between the rates of the electrooxidation of HCOOH and DCOOH on platinum was repeated, The results are coincident essentially, that is, there is a noticeable isotopic effect (see Fig.5), (3) The experiment of pre-adsorption of formic acid in situ shown in the PTS in Fig.6 was programmed. It appears that the peak current for the first oxidation peak in i-B profile increases after pre-adsorption, but decreases with the increase of pre-adsorbed time. (4) According to the facts mentioned above, we suggest that a dissociative adsorption of formic acid on platinum surface takes place by cleaving a 0-11 bond, and an adsorbed intermediate HCOOed which behaves as the multiple adsorbed states is formed. The ordinary oxidation of formic acid(i.e, making no mention of formation and oxidation for the strongly adsorbed intermedites) on platinum anode proceeds via the reaction seguence(3).; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207571200006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); 1; ARTICLE; 1; 27-31; 4
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/312892]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang Huixin,Wu Caiming,Chen Xin,et al. STUDY ON INTERMEDIATES AND MECHANISM FOR OXIDATION OF FORMIC ACID ON PLATINUM ANODE[J]. 物理化学学报,1988.
APA	Zhang Huixin,Wu Caiming,Chen Xin,Wu Shijie,&Li Zuojun.(1988).STUDY ON INTERMEDIATES AND MECHANISM FOR OXIDATION OF FORMIC ACID ON PLATINUM ANODE.物理化学学报.
MLA	Zhang Huixin,et al."STUDY ON INTERMEDIATES AND MECHANISM FOR OXIDATION OF FORMIC ACID ON PLATINUM ANODE".物理化学学报 (1988).