p Pd-promoted heteropolyacid on mesoporous zirconia as a stable and bifunctional catalyst for oxidation of thiophenes
文献类型：期刊论文
| 作者 | Ullah, Latif1,2; Zhao, Guoying1; Ma, Jian-Xin2; Usman, Muhammad3; Khan, Rashid4; Hedin, Niklas1,5 |
| 刊名 | FUEL
 |
| 出版日期 | 2022-02-15 |
| 卷号 | 310页码:11 |
| ISSN号 | 0016-2361 |
| 关键词 | Oxidative deep-desulfurization Bifunctional catalyst Porous zirconia Palladium Nanoparticles Molybdovanadophosphoric acid |
| DOI | 10.1016/j.fuel.2021.122462 |
| 英文摘要 | Sulfur-containing compounds are undesirable in fossil fuels, thus stringent regulations are in place to curb their atmospheric emissions. In this context, we hypothesized and showed that acid catalysis promoted by metal particles could be used to oxidize dibenzothiophene (DBT) and benzothiophene (BT) into sulfones that, in principle, can be subsequently removed. In specific, we studied the oxidative step of catalytic oxidative desulfurization (CODS) processes using a new bifunctional catalyst based on Pd-promoted molybdovanadophosphoric acid (Pd-PMV) supported on mesoporous zirconia (Pd-PMV/mZrO2). The PMV was supported on zirconia using a one-pot sol-gel method, and the Pd nanoparticles were deposited in a subsequent step. The activity of catalyst was excellent, with high conversions >99% and a turnover frequency (TOF) value of 384 h-1 for DBT, using catalyst Pd-15PMV/mZrO2, which had 15-wt% loading of PMV. tert-butyl hydrogen peroxide (tBHP) was used as an oxidant under relatively mild reaction conditions. The catalyst had both Bronsted and Lewis acid sites, and the Pd nanoparticles enhanced its synergistic catalytic performance. Up to a threshold level loading of PMV, the thermal stability of the catalysts was higher than the underlying mZrO2 support. A high catalytic activity was maintained with only a minor loss over 10 cycles, making the catalyst promising for oxidative deepdesulfurization of liquid hydrocarbon fuels. |
| WOS关键词 | PHOSPHOTUNGSTIC ACID ; DIESEL FUEL ; MODEL FUEL ; N-HEXANE ; DESULFURIZATION ; PERFORMANCE ; MOLYBDENUM ; SALTS ; OIL ; ADSORPTION |
| 资助项目 | Science Fund for Creative Research Groups[21921005] ; National Natural Science Foundation of China[21878303] ; National Natural Science Foundation of China[21776290] ; Chinese Academy of Sciences Visiting Professorship for Senior International Scientists[2018VSA0002] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000741390500006 |
| 资助机构 | Science Fund for Creative Research Groups ; National Natural Science Foundation of China ; Chinese Academy of Sciences Visiting Professorship for Senior International Scientists |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/51703]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhao, Guoying; Hedin, Niklas |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100190, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 3.King Fahd Univ Petr & Minerals, Ctr Res Excellence Nanotechnol, Dhahran 3126, Saudi Arabia 4.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China 5.Stockholm Univ, Dept Mat & Environm Chem, Stockholm, Sweden |
| 推荐引用方式 GB/T 7714 | Ullah, Latif,Zhao, Guoying,Ma, Jian-Xin,et al. p Pd-promoted heteropolyacid on mesoporous zirconia as a stable and bifunctional catalyst for oxidation of thiophenes[J]. FUEL,2022,310:11. |
| APA | Ullah, Latif,Zhao, Guoying,Ma, Jian-Xin,Usman, Muhammad,Khan, Rashid,&Hedin, Niklas.(2022).p Pd-promoted heteropolyacid on mesoporous zirconia as a stable and bifunctional catalyst for oxidation of thiophenes.FUEL,310,11. |
| MLA | Ullah, Latif,et al."p Pd-promoted heteropolyacid on mesoporous zirconia as a stable and bifunctional catalyst for oxidation of thiophenes".FUEL 310(2022):11. |
入库方式： OAI收割
来源：过程工程研究所
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