Formation mechanism for oxidation synthesis of carbon nanomaterials and detonation process for core-shell structure

doi:10.1016/j.carbon.2017.10.081

	Formation mechanism for oxidation synthesis of carbon nanomaterials and detonation process for core-shell structure
	Liu, Boyang 1; Ke, Shuyu 1; Shao, Yingfeng 2; Jia, Dechang 3; Fan, Chunhua 1; Zhang, Fuhua 1; Fan, Runhua 1
刊名	Carbon
	2018
卷号	127 页码:21-30
ISSN号	00086223
DOI	10.1016/j.carbon.2017.10.081
英文摘要	A novel formation mechanism according to the oxidative dehydrogenation of organics has been proposed for the low-temperature preparation of carbon-based nanomaterials. Several typical organics including ethanol, 1-butanol, p-cymene and liquid paraffin are used as precursors to react with ammonium persulfate (APS) in an autoclave, and carbon particles are obtained as a validation. The reaction characteristics are comprehensively investigated by the differential scanning calorimetric and thermogravimetric analysis. The strongly exothermic oxidation reaction below 200 °C is a common feature during the process. The organic molecules are cleaved into small carbon species and further transform to amorphous carbon. When the organometallic compound is used as a reactant instead, such as magnesocene and allyltriphenyltin, carbon encapsulated MgO and SnS nanocrystals with core-shell structure are synthesized, respectively. A detonation introduced by the violent reaction occurs in the process with a very rapid liberation of heat and large quantities of thermally expanding gases. The large amounts of free atomic/radical species and reactive intermediates are generated as sources for the core-shell structure. It is a common strategy for the large scale production of carbon encapsulated oxide/sulfide nanocrystals by means of the moderate detonation process of the organometallic compound and APS in an autoclave. © 2017 Elsevier Ltd
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25224]
专题	中国科学院上海硅酸盐研究所
作者单位	1.College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai; 201306, China; 2.State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Beijing; 100190, China; 3.Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin; 150001, China
推荐引用方式 GB/T 7714	Liu, Boyang,Ke, Shuyu,Shao, Yingfeng,et al. Formation mechanism for oxidation synthesis of carbon nanomaterials and detonation process for core-shell structure[J]. Carbon,2018,127:21-30.
APA	Liu, Boyang.,Ke, Shuyu.,Shao, Yingfeng.,Jia, Dechang.,Fan, Chunhua.,...&Fan, Runhua.(2018).Formation mechanism for oxidation synthesis of carbon nanomaterials and detonation process for core-shell structure.Carbon,127,21-30.
MLA	Liu, Boyang,et al."Formation mechanism for oxidation synthesis of carbon nanomaterials and detonation process for core-shell structure".Carbon 127(2018):21-30.