{"title":"掺杂 Co 可诱导 CoxP-Ni2P 双金属位点和酸协同效应，从而实现高效氢氧化作用","authors":"SI Minghao, WANG Shuai, GOU Xiaomei, SONG Hua","doi":"10.1016/S1872-5813(24)60477-9","DOIUrl":null,"url":null,"abstract":"<div><p>The development of highly efficient hydrodeoxidation (HDO) catalyst is the key to upgrade the quality of bio-oil. Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-<em>y</em> catalysts (<em>y</em> is the initial P/(Ni+Co) molar ratio) comprised of Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P bimetallic sites and acidic site were prepared by doping Co into Ni<sub>2</sub>P active phase using mesoporous SiO<sub>2</sub> as the support. The structure and chemical properties of the catalyst were characterized by XRD, BET, XPS, H<sub>2</sub>-TPR, NH<sub>3</sub>-TPD, Py-FTIR and TEM methods. The effects of Co doping and P/M molar ratio on the HDO performance of Ni<sub>2</sub>P/SiO<sub>2</sub> catalyst were investigated taking <em>m</em>-cresol as the model compound. The results show that Co doping not only creates new Co<sub><em>x</em></sub>P active sites, but also optimizes the electronic structure of Ni<sub>2</sub>P, thus improving the HDO activity of the catalyst. Among the Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-<em>y</em> catalysts, Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-0.5 with P/M molar ratio of 0.5 exhibits the best catalytic performance, with the <em>m</em>-cresol conversion of 98.7% and selectivity to the deoxidized product methylcyclohexane (MCH) of 95.6% at 275 °C, 2 MPa and 1 h. The HDO of <em>m</em>-cresol over the Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-<em>y</em> catalyst mainly proceeded through hydrogenation-deoxygenation (HYD) pathway.</p></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"52 9","pages":"Pages 1327-1335"},"PeriodicalIF":0.0000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1872581324604779/pdf?md5=d1e854b459da1bf0f1000fe4f33b920e&pid=1-s2.0-S1872581324604779-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Co doping induces CoxP-Ni2P bimetallic site and acid synergistic effect to achieve efficient hydrodeoxidation\",\"authors\":\"SI Minghao, WANG Shuai, GOU Xiaomei, SONG Hua\",\"doi\":\"10.1016/S1872-5813(24)60477-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The development of highly efficient hydrodeoxidation (HDO) catalyst is the key to upgrade the quality of bio-oil. Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-<em>y</em> catalysts (<em>y</em> is the initial P/(Ni+Co) molar ratio) comprised of Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P bimetallic sites and acidic site were prepared by doping Co into Ni<sub>2</sub>P active phase using mesoporous SiO<sub>2</sub> as the support. The structure and chemical properties of the catalyst were characterized by XRD, BET, XPS, H<sub>2</sub>-TPR, NH<sub>3</sub>-TPD, Py-FTIR and TEM methods. The effects of Co doping and P/M molar ratio on the HDO performance of Ni<sub>2</sub>P/SiO<sub>2</sub> catalyst were investigated taking <em>m</em>-cresol as the model compound. The results show that Co doping not only creates new Co<sub><em>x</em></sub>P active sites, but also optimizes the electronic structure of Ni<sub>2</sub>P, thus improving the HDO activity of the catalyst. Among the Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-<em>y</em> catalysts, Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-0.5 with P/M molar ratio of 0.5 exhibits the best catalytic performance, with the <em>m</em>-cresol conversion of 98.7% and selectivity to the deoxidized product methylcyclohexane (MCH) of 95.6% at 275 °C, 2 MPa and 1 h. The HDO of <em>m</em>-cresol over the Co<sub><em>x</em></sub>P-Ni<sub>2</sub>P/SiO<sub>2</sub>-<em>y</em> catalyst mainly proceeded through hydrogenation-deoxygenation (HYD) pathway.</p></div>\",\"PeriodicalId\":15956,\"journal\":{\"name\":\"燃料化学学报\",\"volume\":\"52 9\",\"pages\":\"Pages 1327-1335\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1872581324604779/pdf?md5=d1e854b459da1bf0f1000fe4f33b920e&pid=1-s2.0-S1872581324604779-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"燃料化学学报\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1872581324604779\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Energy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"燃料化学学报","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1872581324604779","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Energy","Score":null,"Total":0}
Co doping induces CoxP-Ni2P bimetallic site and acid synergistic effect to achieve efficient hydrodeoxidation
The development of highly efficient hydrodeoxidation (HDO) catalyst is the key to upgrade the quality of bio-oil. CoxP-Ni2P/SiO2-y catalysts (y is the initial P/(Ni+Co) molar ratio) comprised of CoxP-Ni2P bimetallic sites and acidic site were prepared by doping Co into Ni2P active phase using mesoporous SiO2 as the support. The structure and chemical properties of the catalyst were characterized by XRD, BET, XPS, H2-TPR, NH3-TPD, Py-FTIR and TEM methods. The effects of Co doping and P/M molar ratio on the HDO performance of Ni2P/SiO2 catalyst were investigated taking m-cresol as the model compound. The results show that Co doping not only creates new CoxP active sites, but also optimizes the electronic structure of Ni2P, thus improving the HDO activity of the catalyst. Among the CoxP-Ni2P/SiO2-y catalysts, CoxP-Ni2P/SiO2-0.5 with P/M molar ratio of 0.5 exhibits the best catalytic performance, with the m-cresol conversion of 98.7% and selectivity to the deoxidized product methylcyclohexane (MCH) of 95.6% at 275 °C, 2 MPa and 1 h. The HDO of m-cresol over the CoxP-Ni2P/SiO2-y catalyst mainly proceeded through hydrogenation-deoxygenation (HYD) pathway.
期刊介绍：
Journal of Fuel Chemistry and Technology (Ranliao Huaxue Xuebao) is a Chinese Academy of Sciences(CAS) journal started in 1956, sponsored by the Chinese Chemical Society and the Institute of Coal Chemistry, Chinese Academy of Sciences(CAS). The journal is published bimonthly by Science Press in China and widely distributed in about 20 countries. Journal of Fuel Chemistry and Technology publishes reports of both basic and applied research in the chemistry and chemical engineering of many energy sources, including that involved in the nature, processing and utilization of coal, petroleum, oil shale, natural gas, biomass and synfuels, as well as related subjects of increasing interest such as C1 chemistry, pollutions control and new catalytic materials. Types of publications include original research articles, short communications, research notes and reviews. Both domestic and international contributors are welcome. Manuscripts written in Chinese or English will be accepted. Additional English titles, abstracts and key words should be included in Chinese manuscripts. All manuscripts are subject to critical review by the editorial committee, which is composed of about 10 foreign and 50 Chinese experts in fuel science. Journal of Fuel Chemistry and Technology has been a source of primary research work in fuel chemistry as a Chinese core scientific periodical.
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