Carbon nanotubes production from catalytic pyrolysis of polyethylene over nickel-based catalysts: The influence of support materials
文献类型：期刊论文
| 作者 | Li, Qing-Lin1,2,3,4,5; Shan, Rui1,3,4,5; Wang, Shu-Xiao1,3,4,5; Yuan, Hao-Ran1,3,4,5; Chen, Yong1,3,4,5 |
| 刊名 | FUEL
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 343页码:11 |
| 关键词 | Polyethylene Waste Catalytic pyrolysis Support materials Carbon nanotubes |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2023.127966 |
| 通讯作者 | Yuan, Hao-Ran(yuanhr@ms.giec.ac.cn) |
| 英文摘要 | To understand the influence of support materials on the reactivity of catalysts, four nickel-based catalysts supported on different materials (ZrO2, TiO2, Nb2O5, and Al2O3) were developed and investigated in the carbon nanotubes production from catalytic pyrolysis of polyethylene using two-stage fixed bed reactor. The results showed that the Ni/Al2O3 catalyst generated the highest carbon material yield of 36.5 wt%, while the order of carbon material yield was Ni/Al2O3 > Ni/TiO2 > Ni/ZrO2 > Ni/Nb2O5. To explore the correlation between catalysts properties and carbon products, the essential structural characteristics of fresh catalyst and reacted catalyst were analyzed by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (TEM), temperature program oxidation (TPO), nitrogen adsorption measure-ments and Raman spectroscopy. The Ni/Al2O3 catalyst with the highest surface area, abundant pore structure, and moderate metal-support interaction promoted the decomposition of pyrolysis volatiles to produce carbon nanomaterials, which were consist of carbon nanotubes (CNTs). CNTs are the main component of carbon ma-terials produced, accounting for a relatively high proportion. In comparison, the large metal active particles and weak metal-support interaction of Ni/TiO2 catalyst had a negative impact on the formation of CNTs, generating many fishbone like carbon nanofibers (CNFs). Moreover, the poor pore structure and larger metal active particles for Ni/ZrO2 and Ni/Nb2O5 catalyst led to a low carbon deposition yield and poor quality of CNTs. The results provide valuable data and theoretical support for the research on the preparation of valuable carbon nanotubes from waste plastics. |
| WOS关键词 | WASTE PLASTICS ; HYDROGEN ; POLYPROPYLENE ; COPRODUCTION ; GASIFICATION ; DECOMPOSITION ; CONVERSION ; FEEDSTOCK ; METHANE |
| 资助项目 | Science and Technology Program of Guangdong Province, China[2021B1515020068] ; Science and Tech- nology Program of Guangdong Province, China[202002030365] ; Science and Technology Program of Guangzhou, China[2017YT05N093] ; Yangfan Plan Innovation Team of Guangdong Province[2021A1515012263] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001008887700001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Science and Technology Program of Guangdong Province, China ; Science and Tech- nology Program of Guangdong Province, China ; Science and Technology Program of Guangzhou, China ; Yangfan Plan Innovation Team of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39487]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Yuan, Hao-Ran |
| 作者单位 | 1.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Sch Engn Sci, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 5.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qing-Lin,Shan, Rui,Wang, Shu-Xiao,et al. Carbon nanotubes production from catalytic pyrolysis of polyethylene over nickel-based catalysts: The influence of support materials[J]. FUEL,2023,343:11. |
| APA | Li, Qing-Lin,Shan, Rui,Wang, Shu-Xiao,Yuan, Hao-Ran,&Chen, Yong.(2023).Carbon nanotubes production from catalytic pyrolysis of polyethylene over nickel-based catalysts: The influence of support materials.FUEL,343,11. |
| MLA | Li, Qing-Lin,et al."Carbon nanotubes production from catalytic pyrolysis of polyethylene over nickel-based catalysts: The influence of support materials".FUEL 343(2023):11. |
入库方式： OAI收割
来源：广州能源研究所
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