Influence of support on the performance of copper catalysts for the effective hydrogenation of ethylene carbonate to synthesize ethylene glycol and methanol
文献类型：期刊论文
| 作者 | Li, Fengjiao1,2 ; Wang, Liguo1; Han, Xiao1; He, Peng1; Cao, Yan1; Li, Huiquan1
|
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:51页码:45894-45906 |
| ISSN号 | 2046-2069 |
| 英文摘要 | Hydrogenation of ethylene carbonate (EC) is an attractive and promising approach for indirect hydrogenation of CO2 to co-produce ethylene glycol (EG) and methanol (MeOH). In this work, thermodynamics of EC hydrogenation was firstly calculated, and the results disclosed that EC hydrogenation is exothermic (Delta H-r(m)theta = -71.59 kJ mol(-1)) and thermodynamically favorable (Delta(r)G(m)(theta) = -25.62 kJ mol(-1)). The mesoporous silica supported copper catalysts were successfully prepared by facile ammonia evaporation method using KIT-6, MCM-41 and SBA-15 as support materials. The asprepared Cu/KIT-6, Cu/MCM-41 and Cu/SBA-15 were thoroughly characterized by N-2 physisorption, ICP-AES, N2O titration, FT-IR, XRD, H-2-TPR, TEM, XPS and XAES. It was found that copper nanoparticles were well dispersed on these supports. Interestingly, a larger metallic Cu surface area with higher dispersion was obtained on SBA-15 when compared with KIT-6 and MCM-41. Furthermore, Cu-0 and Cu+ species in various ratios were verified to co-exist on the surfaces of the three catalysts, which originated from CuO and copper phyllosilicate, respectively. The catalytic performances showed that Cu/SBA-15 exhibited a superior catalytic activity with a TON of 22.0 and 11.4 (mol mol(-1)) towards EG and MeOH, respectively. Importantly, 100% of EC conversion, 94.7% of EG yield and 62.3% of MeOH yield were achieved within a short reaction time of 4 h over Cu/SBA-15 under optimized conditions. The synergetic effect between Cu-0 and Cu+ species, in which it was proposed that Cu-0 species dissociated H-2, while Cu+ species absorbed the carbonyl group of EC, was responsible for the higher catalytic activity of Cu/SBA-15. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | DIMETHYL OXALATE ; MESOPOROUS SILICA ; CYCLIC CARBONATES ; CU/SIO2 CATALYSTS ; SBA-15 ; COPOLYMER ; TRIBLOCK ; DIOXIDE ; HYDROGENOLYSIS ; EFFICIENT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376120100110 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/21078]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Fengjiao,Wang, Liguo,Han, Xiao,et al. Influence of support on the performance of copper catalysts for the effective hydrogenation of ethylene carbonate to synthesize ethylene glycol and methanol[J]. RSC ADVANCES,2016,6(51):45894-45906. |
| APA | Li, Fengjiao,Wang, Liguo,Han, Xiao,He, Peng,Cao, Yan,&Li, Huiquan.(2016).Influence of support on the performance of copper catalysts for the effective hydrogenation of ethylene carbonate to synthesize ethylene glycol and methanol.RSC ADVANCES,6(51),45894-45906. |
| MLA | Li, Fengjiao,et al."Influence of support on the performance of copper catalysts for the effective hydrogenation of ethylene carbonate to synthesize ethylene glycol and methanol".RSC ADVANCES 6.51(2016):45894-45906. |
入库方式： OAI收割
来源：过程工程研究所
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