Dopant Site Engineering on 2D Co3O4 Enables Enhanced Toluene Oxidation in a Wide Temperature Range
文献类型：期刊论文
| 作者 | Li, Rong3,4,5; Huang, Yu4,5; Shi, Xianjin3,4,5; Wang, Liqin4,5; Li, Zhiyu3,4,5; Zhu, Dandan4,5; Liang, Xiaoliang1 ; Cao, Junji6; Xiong, Yujie2
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2023-08-24 |
| 卷号 | 57期号:35页码:13236-13246 |
| 关键词 | 2D Co3O4 molten salt method metal doping tandem design toluene oxidation mechanism |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.3c03617 |
| 英文摘要 | Development of cost-effective oxide catalysts holds the key to the removal of toluene, one of the most important volatile organic compounds. However, the catalysts follow varied working mechanisms at different reaction temperatures, posing a challenge to achieving efficient toluene removal over a wide temperature range. Here we report an agitation-assisted molten salt method, which achieves the rational doping on a two-dimensional Co3O4 catalyst and forms two different structures of active sites to enhance catalytic oxidation of toluene in specific temperature intervals, enabling a facile tandem design for working in a wide temperature range. Specifically, Co3O4 is doped with Cu at the octahedral site (Cu-Co3O4) and Zn at the tetrahedral site (ZnCo3O4) to form Cu-Oh-O-Co-Te and Zn-Te-O-Co-Oh structures on the surface, respectively. Mechanistic studies reveal the different working mechanisms of these two active sites toward remarkable performance enhancement at specific temperature intervals, and the improved performance derived from accelerated consumption of intermediates adsorbed on the catalyst surface. Taken together, Cu-Co3O4 and Zn-Co3O4 achieve excellent toluene purification performance over a wide temperature range. This work provides insights into the mechanism-oriented design of active sites at the atomic level. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001062282300001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74819]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Huang, Yu; Xiong, Yujie |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China 6.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Rong,Huang, Yu,Shi, Xianjin,et al. Dopant Site Engineering on 2D Co3O4 Enables Enhanced Toluene Oxidation in a Wide Temperature Range[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023,57(35):13236-13246. |
| APA | Li, Rong.,Huang, Yu.,Shi, Xianjin.,Wang, Liqin.,Li, Zhiyu.,...&Xiong, Yujie.(2023).Dopant Site Engineering on 2D Co3O4 Enables Enhanced Toluene Oxidation in a Wide Temperature Range.ENVIRONMENTAL SCIENCE & TECHNOLOGY,57(35),13236-13246. |
| MLA | Li, Rong,et al."Dopant Site Engineering on 2D Co3O4 Enables Enhanced Toluene Oxidation in a Wide Temperature Range".ENVIRONMENTAL SCIENCE & TECHNOLOGY 57.35(2023):13236-13246. |
入库方式： OAI收割
来源：广州地球化学研究所
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