Self-Templating Synthesis of 3D Hierarchical NiCo2O4@NiO Nanocage from Hydrotalcites for Toluene Oxidation
文献类型：期刊论文
| 作者 | Wang, Dongdong1,2; Li, Shuangde1; Du, Yingchao1,2; Wu, Xiaofeng1; Chen, Yunfa1,2,3
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| 刊名 | CATALYSTS
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| 出版日期 | 2019-04-01 |
| 卷号 | 9期号:4页码:15 |
| 关键词 | hierarchical nanocage high surface area toluene oxidation lattice defect |
| ISSN号 | 2073-4344 |
| DOI | 10.3390/catal9040352 |
| 英文摘要 | Rational design LDHs (layered double hydroxides) with 3D hierarchical hollow structures have generated widespread interest for catalytic oxidation due to the high complexity in shell architecture and composition. Herein, we reported a handy two-step method to construct a 3D hierarchical NiCo2O4/NiO nanocage. This synthetic strategy contains a partial in situ transformation of ZIF-67 (zeolitic imidazolate framework-67) into Co-NiLDH yolk-shelled structures following ethanol etching, and a structure-preserved transformation from Co-NiLDH@ZIF-67 to a biphase nanocage following calcination. CoNi-yh-T (varied reaction time and calcination temperature) nanocages were investigated systematically by Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), H-2- temperature-programmed reduction (TPR), NH3-temperature-programmed desorption (TPD) and studied for toluene oxidation. The CoNi-6h-350 sample showed much higher activity with 90% toluene conversion (T-90) at 229 degrees C at a high space velocity (SV = 60,000 mL g(-1) h(-1)) than other catalysts (T-90 >240 degrees C). Abundant surface high valence Co ions caused by the novel hierarchical nanostructures, together with adsorbed oxygen species and abundant medium-strength surface acid sites, played a key role for catalytic activities. |
| WOS关键词 | SELECTIVE CATALYTIC-REDUCTION ; LAYERED-DOUBLE-HYDROXIDES ; MIXED-METAL OXIDES ; HIGH-PERFORMANCE ; SCALABLE SYNTHESIS ; SPINEL CATALYSTS ; MESOPOROUS CO3O4 ; NICKEL-COBALT ; CO ; NI |
| 资助项目 | National Key R&D Program of China[2017YFC0211503] ; National Key R&D Program of China[2016YFC0207100] ; National Natural Science Foundation of China[21401200] ; National Natural Science Foundation of China[51672273] ; Open Research Fund of State Key Laboratory of Multi-phase Complex Systems[MPCS-2017-D-06] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000467315600051 |
| 出版者 | MDPI |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Open Research Fund of State Key Laboratory of Multi-phase Complex Systems |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28254]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Shuangde; Chen, Yunfa |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Dongdong,Li, Shuangde,Du, Yingchao,et al. Self-Templating Synthesis of 3D Hierarchical NiCo2O4@NiO Nanocage from Hydrotalcites for Toluene Oxidation[J]. CATALYSTS,2019,9(4):15. |
| APA | Wang, Dongdong,Li, Shuangde,Du, Yingchao,Wu, Xiaofeng,&Chen, Yunfa.(2019).Self-Templating Synthesis of 3D Hierarchical NiCo2O4@NiO Nanocage from Hydrotalcites for Toluene Oxidation.CATALYSTS,9(4),15. |
| MLA | Wang, Dongdong,et al."Self-Templating Synthesis of 3D Hierarchical NiCo2O4@NiO Nanocage from Hydrotalcites for Toluene Oxidation".CATALYSTS 9.4(2019):15. |
入库方式： OAI收割
来源：过程工程研究所
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