Site-specific reactivity of molecules with surface defects-the case of H-2 dissociation on Pt

doi:10.1126/science.aau6716

GSTDTAP > 地球科学

DOI	10.1126/science.aau6716
	Site-specific reactivity of molecules with surface defects-the case of H-2 dissociation on Pt
	van Lent, Richard 1,2; Auras, Sabine V.1; Cao, Kun 1; Walsh, Anton J.2; Gleeson, Michael A.2; Juurlink, Ludo B. F.1
	2019-01-11
发表期刊	SCIENCE
ISSN	0036-8075
EISSN	1095-9203
出版年	2019
卷号	363 期号:6423 页码:155-+
文章类型	Article
语种	英语
国家	Netherlands
英文摘要	The classic system that describes weakly activated dissociation in heterogeneous catalysis has been explained by two dynamical models that are fundamentally at odds. Whereas one model for hydrogen dissociation on platinum(111) invokes a preequilibrium and diffusion toward defects, the other is based on direct and local reaction. We resolve this dispute by quantifying site-specific reactivity using a curved platinum single-crystal surface. Reactivity is step-type dependent and varies linearly with step density. Only the model that relies on localized dissociation is consistent with our results. Our approach provides absolute, site-specific reaction cross sections.
领域	地球科学 ; 气候变化 ; 资源环境
收录类别	SCI-E
WOS记录号	WOS:000455320600045
WOS关键词	BEAM ; DEPENDENCE ; D-2 ; SCATTERING ; DYNAMICS ; PT(111) ; STEPS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/200508
专题	地球科学资源环境科学气候变化
作者单位	1.Leiden Univ, Leiden Inst Chem, Einsteinweg 55, NL-2333 CC Leiden, Netherlands; 2.Dutch Inst Fundamental Energy Res, Zaale 20, NL-5612 AJ Eindhoven, Netherlands
推荐引用方式 GB/T 7714	van Lent, Richard,Auras, Sabine V.,Cao, Kun,et al. Site-specific reactivity of molecules with surface defects-the case of H-2 dissociation on Pt[J]. SCIENCE,2019,363(6423):155-+.
APA	van Lent, Richard,Auras, Sabine V.,Cao, Kun,Walsh, Anton J.,Gleeson, Michael A.,&Juurlink, Ludo B. F..(2019).Site-specific reactivity of molecules with surface defects-the case of H-2 dissociation on Pt.SCIENCE,363(6423),155-+.
MLA	van Lent, Richard,et al."Site-specific reactivity of molecules with surface defects-the case of H-2 dissociation on Pt".SCIENCE 363.6423(2019):155-+.