Solution-Phase Synthesis of Heteroatom-Substituted Carbon Scaffolds for   Hydrogen Storage

doi:10.1021/ja105428d

CORC > 北京大学 > 化学与分子工程学院

	Solution-Phase Synthesis of Heteroatom-Substituted Carbon Scaffolds for Hydrogen Storage
	Jin, Zhong ; Sun, Zhengzong ; Simpson, Lin J. ; O&apos ; Parilla, Philip A. ; Li, Yan ; Stadie, Nicholas P. ; Ahn, Channing C. ; Kittrell, Carter ; Tour, James M. ; Neill, Kevin J.
刊名	journal of the american chemical society
	2010
关键词	ACTIVATED CARBONS ADSORPTION NANOTUBES TEMPERATURE CAPACITY EQUATION HEAT BC3
DOI	10.1021/ja105428d
英文摘要	This paper reports a bottom-up solution-phase process for the preparation of pristine and heteroatom (boron, phosphorus, or nitrogen)-substituted carbon scaffolds that show good surface areas and enhanced hydrogen adsorption capacities and binding energies. The synthesis method involves heating chlorine-containing small organic molecules with metallic sodium at reflux in high-boiling solvents. For heteroatom incorporation, heteroatomic electrophiles are added to the reaction mixture. Under the reaction conditions, micrometer-sized graphitic sheets assembled by 3-5 nm-sized domains of graphene nanoflakes are formed, and when they are heteroatom-substituted, the heteroatoms are uniformly distributed. The substituted carbon scaffolds enriched with heteroatoms (boron similar to 7.3%, phosphorus similar to 8.1%, and nitrogen similar to 28.1%) had surface areas as high as 900 m(2) g(-1) and enhanced reversible hydrogen physisorption capacities relative to pristine carbon scaffolds or common carbonaceous materials. In addition, the binding energies of the substituted carbon scaffolds, as measured by adsorption isotherms, were 8.6, 8.3, and 5.6 kJ mol(-1) for the boron-, phosphorus-, and nitrogen-enriched carbon scaffolds, respectively.; Chemistry, Multidisciplinary; SCI(E); EI; 19; ARTICLE; 43; 15246-15251; 132
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/241812]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Jin, Zhong,Sun, Zhengzong,Simpson, Lin J.,et al. Solution-Phase Synthesis of Heteroatom-Substituted Carbon Scaffolds for Hydrogen Storage[J]. journal of the american chemical society,2010.
APA	Jin, Zhong.,Sun, Zhengzong.,Simpson, Lin J..,O&apos.,Parilla, Philip A..,...&Neill, Kevin J..(2010).Solution-Phase Synthesis of Heteroatom-Substituted Carbon Scaffolds for Hydrogen Storage.journal of the american chemical society.
MLA	Jin, Zhong,et al."Solution-Phase Synthesis of Heteroatom-Substituted Carbon Scaffolds for Hydrogen Storage".journal of the american chemical society (2010).