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甲酸根吸附热与其电子性质之间的关联:第一性密度泛函理论研究
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作者 玛宏罹 王贵昌 +1 位作者 morikawa yoshitada NAKAMURA Junji 《中国科学(B辑)》 CSCD 北大核心 2009年第9期993-993,共1页
采用第一性密度泛函理论(DFT-GGA)研究了甲酸根(HCOO)在一系列金属表面的吸附.研究表明,HCOO的最稳定吸附位置是短桥位,吸附热顺序为Au(110)〈Ag(110)〈Cu(110)〈Pd(110)〈Pt(110)〈Ni(110)〈Rh(110)〈Fe(100)... 采用第一性密度泛函理论(DFT-GGA)研究了甲酸根(HCOO)在一系列金属表面的吸附.研究表明,HCOO的最稳定吸附位置是短桥位,吸附热顺序为Au(110)〈Ag(110)〈Cu(110)〈Pd(110)〈Pt(110)〈Ni(110)〈Rh(110)〈Fe(100)〈Mo(100).HCOO吸附热可以很好地与相应的金属氧化物生成热关联.另外还发现,过渡金属的吸附热与金属的小带中心有很好地关联,第1B金属吸附热可以用耦合矩阵平方来解释. 展开更多
关键词 甲酸根 金属 DFT-GGA平板模型 吸附热 d带中心
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The relationship between formate adsorption energy and electronic properties: A first principles density functional theory study
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作者 morikawa yoshitada NAKAMURA Junji 《Science China Chemistry》 SCIE EI CAS 2009年第9期1427-1433,共7页
First principles density functional theory calculations have been performed for the chemisorption of formate adsorption on some metal surfaces. For the most stable adsorption site of short-bridge, the calculated forma... First principles density functional theory calculations have been performed for the chemisorption of formate adsorption on some metal surfaces. For the most stable adsorption site of short-bridge, the calculated formate adsorption energy follows the order of Au(110) < Ag(110) < Cu(110) < Pd(110) < Pt(110) < Ni(110) < Rh(110) < Fe(100) < Mo(100), and a clear linear correlation exists between the adsorption energy and the corresponding heat of formation of metal oxides. Moreover, it has been found that the formate adsorption energy for the transition metals can be correlated well with its d-band center (εd), and the IB Group metals can be described by the coupling matrix element square (Vad2). 展开更多
关键词 FORMATE metal DFT-GGA SLAB model adsorption energy d-band CENTER
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