Size and Substrate Effects Modulating Thermodynamics Properties of Hydrogenation in Pd/Au(111) Studied by Electrochemical PCT Isotherm

doi:10.1149/2.0651809jes

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	Size and Substrate Effects Modulating Thermodynamics Properties of Hydrogenation in Pd/Au(111) Studied by Electrochemical PCT Isotherm
	Wang, Liang1,2 ; Kang, Shuai1,2 ; Tu, Shu 3
刊名	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
	2018
卷号	165 期号:9 页码:A1626-A1629
ISSN号	0013-4651
DOI	10.1149/2.0651809jes
英文摘要	To study the thermodynamic properties of Pd nanofilm grown on the specific substrates is an appropriate and pivotal method for understanding the reaction mechanisms of Pd-H system. Here, thermodynamics of hydrogen in Pd/Au(111) nanofilms are investigated firstly by electrochemical pressure-composition-temperature (PCT) isotherm measurements followed by Van't Hoff plotting, through which the enthalpy (Delta H) and entropy (Delta S) are determined well. The results show layer dependent thermodynamic properties of them. Pd nanofilms with thickness lower than 53 monolayers are less affinity to hydrogen because of substrate and size effects. However, the hydrides formed on them are stable at room temperature with the stability lower than that of bulk Pd, which indicates Pd nanofilms with appropriate and dominated orientation surface can be the viable coats of the hydrogen storage materials for intaking and releasing hydrogen efficiently, and also enlarging the duration of them. (C) 2018 The Electrochemical Society.
资助项目	Program of Hundreds talents of Chinese Academy of Science[R52A261Z10] ; Fundamental and advanced technology Research Funds of Chongqing[cstc2015jcyjBX0103]
WOS研究方向	Electrochemistry ; Materials Science
语种	英语
出版者	ELECTROCHEMICAL SOC INC
WOS记录号	WOS:000440924800006
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6554]
专题	微纳制造与系统集成研究中心
通讯作者	Wang, Liang
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China 3.Southwest Univ, High Sch, Chongqing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Liang,Kang, Shuai,Tu, Shu. Size and Substrate Effects Modulating Thermodynamics Properties of Hydrogenation in Pd/Au(111) Studied by Electrochemical PCT Isotherm[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2018,165(9):A1626-A1629.
APA	Wang, Liang,Kang, Shuai,&Tu, Shu.(2018).Size and Substrate Effects Modulating Thermodynamics Properties of Hydrogenation in Pd/Au(111) Studied by Electrochemical PCT Isotherm.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,165(9),A1626-A1629.
MLA	Wang, Liang,et al."Size and Substrate Effects Modulating Thermodynamics Properties of Hydrogenation in Pd/Au(111) Studied by Electrochemical PCT Isotherm".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 165.9(2018):A1626-A1629.