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	Carbon Monoxide-Assisted Synthesis of Single-Crystalline Pd Tetrapod Nanocrystals through Hydride Formation
	Yan Dai ; Dai Y(代燕) ; Xiaoliang Mu ; Mu XL(穆晓亮) ; Yueming Tan ; Tan YM(谭月明) ; Kaiqiang Lin ; Zhilin Yang ; Gang Fu ; Lin KQ(林揩强) ; Yang ZL(杨志林) ; Zheng NF(郑南峰) ; Fu G(傅刚) ; Nanfeng Zheng
	2012-04-25
关键词	SHAPE-CONTROLLED SYNTHESIS NOBLE-METAL NANOPARTICLES SUM-FREQUENCY GENERATION AUGMENTED-WAVE METHOD CO ADSORPTION HIGH-PRESSURE TRANSITION-METALS ULTRAHIGH-VACUUM ONE-POT SURFACE
英文摘要	通讯作者地址: Zheng, NF (通讯作者),Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 地址: 1. Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 2. Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 3. Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China 电子邮件地址: nfzheng@xmu.edu.cn; gfu@xmu.edu.cn; Carbon monoxide can adsorb specifically on Pd(111) to induce the formation of unique Pd nanostructures. In the copresence of CO and H-2 single-crystalline Pd tetrapod nanocrystals have now been successfully prepared. The Pd tetrapods are enclosed by (111) surfaces and are yielded through hydride formation. Density functional theory calculations revealed that the formation of PdHx in the presence of H, reduces the binding energy of CO on Pd and thus helps to decrease the CO coverage during the synthesis, which is essential to the formation of the PdHx tetrapod nanocrystals. In addition to tetrapod nanocrystals, tetrahedral nanocrystals were also produced in the copresence of CO and H-2 when the reaction temperature was ramped to further lower the CO coverage. Upon aging in air, the as-prepared PdHx nanocrystals exhibited a shape-dependent hydrogen releasing behavior. The conversion rate of PdHx tetrapod nanocrystals into metallic Pd was faster than that of tetrahedral nanocrystals.; MOST of China 2011CB932403 2009CB930703 NSFC 21131005 21021061 20925103 20973139 21133004 Fok Ying Tung Education Foundation 121011 Fundamental Research Funds for the Central Universities
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/12667]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Yan Dai,Dai Y,Xiaoliang Mu,et al. Carbon Monoxide-Assisted Synthesis of Single-Crystalline Pd Tetrapod Nanocrystals through Hydride Formation[J],2012.
APA	Yan Dai.,代燕.,Xiaoliang Mu.,穆晓亮.,Yueming Tan.,...&Nanfeng Zheng.(2012).Carbon Monoxide-Assisted Synthesis of Single-Crystalline Pd Tetrapod Nanocrystals through Hydride Formation..
MLA	Yan Dai,et al."Carbon Monoxide-Assisted Synthesis of Single-Crystalline Pd Tetrapod Nanocrystals through Hydride Formation".(2012).

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