Formation mechanism for oxidation synthesis of carbon nanomaterials and detonation process for core-shell structure | |
Liu, Boyang1; Ke, Shuyu1; Shao, Yingfeng2; Jia, Dechang3; Fan, Chunhua1; Zhang, Fuhua1; Fan, Runhua1 | |
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. |
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