Ce助剂对V/SiO2催化CO2氧化乙苯脱氢性能的影响
通过N2吸附、X射线衍射（XRD）、X射线光电子能谱（XPS）、H2程序升温还原（H2-TPR）、CO2程序升温脱附（CO2-TPD）和热重分析（TGA）等多种表征手段和催化反应性能评价，研究了铈助剂的添加对V/SiO2催化CO2氧化乙苯脱氢性能的影响. 结果表明，Ce助剂不仅提高了催化剂活性组分分散性和氧化还原性能，抑制了钒物种的深度还原，而且增强了催化剂碱性和CO2吸附能力，减缓了积炭生成，从而显著提高了V-Ce/SiO2对CO2氧化乙苯脱氢反应的催化活性和稳定性. 在本实验中，V（0.8）-Ce（0.25）/SiO2催化剂表现出最佳的催化性能，苯乙烯（ST）收率可达55.6%，选择性为9...
Saved in:
| Published in | 物理化学学报 Vol. 30; no. 2; pp. 351 - 358 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
太原理工大学化学化工学院,太原,030024%太原理工大学化学化工学院，太原030024
2014
中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001%太原理工大学精细化工研究所,太原,030024%中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201312021 |
Cover
| Abstract | 通过N2吸附、X射线衍射（XRD）、X射线光电子能谱（XPS）、H2程序升温还原（H2-TPR）、CO2程序升温脱附（CO2-TPD）和热重分析（TGA）等多种表征手段和催化反应性能评价，研究了铈助剂的添加对V/SiO2催化CO2氧化乙苯脱氢性能的影响. 结果表明，Ce助剂不仅提高了催化剂活性组分分散性和氧化还原性能，抑制了钒物种的深度还原，而且增强了催化剂碱性和CO2吸附能力，减缓了积炭生成，从而显著提高了V-Ce/SiO2对CO2氧化乙苯脱氢反应的催化活性和稳定性. 在本实验中，V（0.8）-Ce（0.25）/SiO2催化剂表现出最佳的催化性能，苯乙烯（ST）收率可达55.6%，选择性为98.5%，反应12 h 后，催化剂活性基本不变，与惰性N2气氛比较，CO2明显促进了乙苯脱氢反应，归因于CO2能保持催化剂表面钒物种的高价态. |
|---|---|
| AbstractList | O643; 通过N2吸附、X射线衍射(XRD)、X射线光电子能谱(XPS)、H2程序升温还原(H2-TPR)、CO2程序升温脱附(CO2-TPD)和热重分析(TGA)等多种表征手段和催化反应性能评价，研究了铈助剂的添加对V/SiO2催化CO2氧化乙苯脱氢性能的影响.结果表明， Ce助剂不仅提高了催化剂活性组分分散性和氧化还原性能，抑制了钒物种的深度还原，而且增强了催化剂碱性和CO2吸附能力，减缓了积炭生成，从而显著提高了V-Ce/SiO2对CO2氧化乙苯脱氢反应的催化活性和稳定性.在本实验中， V(0.8)-Ce(0.25)/SiO2催化剂表现出最佳的催化性能，苯乙烯(ST)收率可达55.6%，选择性为98.5%，反应12 h后，催化剂活性基本不变，与惰性N2气氛比较， CO2明显促进了乙苯脱氢反应，归因于CO2能保持催化剂表面钒物种的高价态. 通过N2吸附、X射线衍射（XRD）、X射线光电子能谱（XPS）、H2程序升温还原（H2-TPR）、CO2程序升温脱附（CO2-TPD）和热重分析（TGA）等多种表征手段和催化反应性能评价，研究了铈助剂的添加对V/SiO2催化CO2氧化乙苯脱氢性能的影响. 结果表明，Ce助剂不仅提高了催化剂活性组分分散性和氧化还原性能，抑制了钒物种的深度还原，而且增强了催化剂碱性和CO2吸附能力，减缓了积炭生成，从而显著提高了V-Ce/SiO2对CO2氧化乙苯脱氢反应的催化活性和稳定性. 在本实验中，V（0.8）-Ce（0.25）/SiO2催化剂表现出最佳的催化性能，苯乙烯（ST）收率可达55.6%，选择性为98.5%，反应12 h 后，催化剂活性基本不变，与惰性N2气氛比较，CO2明显促进了乙苯脱氢反应，归因于CO2能保持催化剂表面钒物种的高价态. |
| Abstract_FL | The effect of a Ce promoter on the catalytic properties of V/SiO2 was investigated for the oxidative dehydrogenation of ethylbenzene (EB) to styrene (ST) with CO2 (CO2-ODEB). The catalysts were characterized by nitrogen adsorption, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), H2 temperature-programmed reduction (H2-TPR), CO2 temperature-programmed desorption (CO2-TPD), and thermogravimetric analyses (TGA). It was found that incorporation of Ce into V/SiO2 increased the dispersion of active V species, enhanced the redox properties of the system, and inhibited deep V reduction of V5+ to V3+. The Ce promoter also improves the basicity of V/SiO2 and CO2 adsorption on the catalyst, and suppresses coke formation. The addition of a Ce promoter greatly improves the catalytic activity and stability of V/SiO2 towards CO2-ODEB. The ST yield and selectivity reach 55.6% and 98.5%, respectively, for CO2-ODEB over the most efficient catalyst, V(0.8)Ce(0.25)/SiO2, at 550 ° C, and a CO2/EB molar ratio of 20. Moreover, after reaction for 12 h, the V(0.8)Ce(0.25)/SiO2 stil shows stable catalytic activity. The ST yield in CO2 is higher than that in an inert N2 atmosphere, showing the significant promoting effect of CO2 on EB dehydrogenation;this is because CO2 is a soft oxidant and can effectively keep/regain the high valence of V for high activity with CO2-ODEB. |
| Author | 张海新 陈树伟 崔杏雨 潘大海 秦张峰 王建国 |
| AuthorAffiliation | 太原理工大学化学化工学院,太原030024 中国科学院山西煤炭化学研究所,煤转化国家重点实验室,太原030001 太原理工大学精细化工研究所,太原030024 |
| AuthorAffiliation_xml | – name: 太原理工大学化学化工学院,太原,030024%太原理工大学化学化工学院，太原030024; 中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001%太原理工大学精细化工研究所,太原,030024%中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001 |
| Author_FL | ZHANG Hai-Xin CHEN Shu-Wei CUI Xing-Yu WANG Jian-Guo QIN Zhang-Feng PAN Da-Hai |
| Author_FL_xml | – sequence: 1 fullname: ZHANG Hai-Xin – sequence: 2 fullname: CHEN Shu-Wei – sequence: 3 fullname: CUI Xing-Yu – sequence: 4 fullname: PAN Da-Hai – sequence: 5 fullname: QIN Zhang-Feng – sequence: 6 fullname: WANG Jian-Guo |
| Author_xml | – sequence: 1 fullname: 张海新 陈树伟 崔杏雨 潘大海 秦张峰 王建国 |
| BookMark | eNotj7tOAkEYhafAREQewNLKamH-mdmZIVa6UTGSYCJeOrKXGViDi-6GgJ1BGm-ViYmWNsTEBCgpeBsHeQw3weqc4ss5-dZQJmpHCqENwAUqOS8eH50WzssXuwQDBYIJZFAWMMYWlyBXUT5JQg9jAGwTLrNo21Hm8cs89M1oelY8CavE9L_N85tTJfPxMC0_0_fF02gxmMzHn_O74eJ-9vsxMLOJeX1ZRyvabSUq_585VNvfqzllq1I9OHR2KpZvS2ox5fPAV4IpzwtYSZYUF9i3PUkFBymU1iIggtlKM8CaS6qkJiAEJxBQYROaQ1vL2a4baTdq1C_bnThKD-vdVrPX81JThlNTmpKbS9JvtqPGTZiy13F45ca3dSZtwoAI-gf34WXI |
| ClassificationCodes | O643 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| Copyright_xml | – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| DBID | 2RA 92L CQIGP ~WA 2B. 4A8 92I 93N PSX TCJ |
| DOI | 10.3866/PKU.WHXB201312021 |
| DatabaseName | 维普期刊资源整合服务平台 中文科技期刊数据库-CALIS站点 维普中文期刊数据库 中文科技期刊数据库- 镜像站点 Wanfang Data Journals - Hong Kong WANFANG Data Centre Wanfang Data Journals 万方数据期刊 - 香港版 China Online Journals (COJ) China Online Journals (COJ) |
| DatabaseTitleList | |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Chemistry |
| DocumentTitleAlternate | Effect of Ce Promoter on Catalytic Performance of V/SiO2 in Oxidative Dehydrogenation of Ethylbenzene with Carbon Dioxide |
| DocumentTitle_FL | Effect of Ce Promoter on Catalytic Performance of V/SiO2 in Oxidative Dehydrogenation of Ethylbenzene with Carbon Dioxide |
| EndPage | 358 |
| ExternalDocumentID | wlhxxb201402023 48524127 |
| GrantInformation_xml | – fundername: The project was supported by the National Natural Science Foundation of China; Science and Technology Project of Shanxi Province, China; Foundation of State Key Laboratory of Coal Conversion, China; Shanxi Province Science Foundation for Youths, China (2012021006-2)@@@@国家自然科学基金; 山西省科技攻关项目; 煤转化国家重点实验室开放课题基金; 山西省自然科学(青年)基金 funderid: (51172154); (20130313001-3); (J12-13-603); (51172154); (20130313001-3); (J12-13-603); (2012021006-2) |
| GroupedDBID | -02 2B. 2C. 2RA 5XA 5XC 92E 92I 92L ACGFS AENEX ALMA_UNASSIGNED_HOLDINGS CCEZO CDRFL CQIGP CW9 EBS EJD FIJ OK1 P2P RIG TCJ TGP U1G U5L ~WA 4A8 93N AAXUO AAYWO ADMLS FDB M41 PSX ROL UY8 |
| ID | FETCH-LOGICAL-c583-4ec6dce74ebbd4989e670c5b8376187eff7d2745ef410f683e8f2177621d37523 |
| ISSN | 1000-6818 |
| IngestDate | Thu May 29 03:54:35 EDT 2025 Wed Feb 14 10:38:40 EST 2024 |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 2 |
| Keywords | 苯乙烯 Carbon dioxide Styrene 氧化铈 负载型钒催化剂 Cerium oxide 二氧化碳 Ethylbenzene dehydrogenation 乙苯脱氢 Supported vanadium oxide catalyst |
| Language | Chinese |
| LinkModel | OpenURL |
| MergedId | FETCHMERGED-LOGICAL-c583-4ec6dce74ebbd4989e670c5b8376187eff7d2745ef410f683e8f2177621d37523 |
| Notes | 11-1892/06 The effect of a Ce promoter on the catalytic properties of V/SiO2 was investigated for the oxidative dehydrogenation of ethylbenzene （EB） to styrene （ST） with CO2 （CO2-ODEB）. The catalysts were characterized by nitrogen adsorption, X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, H2 temperature-programmed reduction （H2-TPR）, CO2 temperature-programmed desorption （CO2-TPD）, and thermogravimetric analyses （TGA）. It was found that incorporation of Ce into V/SiO2 increased the dispersion of active V species, enhanced the redox properties of the system, and inhibited deep V reduction of V^5＋ to V^3＋. The Ce promoter also improves the basicity of V/SiO2 and CO2 adsorption on the catalyst, and suppresses coke formation. The addition of a Ce promoter greatly improves the catalytic activity and stability of V/SiO2 towards CO2-ODEB. The ST yield and selectivity reach 55.6% and 98.5%, respectively, for CO2-ODEB over the most efficient catalyst, V（0.8）Ce（0.25）/SiO2, at 550 ℃, and a COJEB molar r |
| PageCount | 8 |
| ParticipantIDs | wanfang_journals_wlhxxb201402023 chongqing_primary_48524127 |
| PublicationCentury | 2000 |
| PublicationDate | 2014 |
| PublicationDateYYYYMMDD | 2014-01-01 |
| PublicationDate_xml | – year: 2014 text: 2014 |
| PublicationDecade | 2010 |
| PublicationTitle | 物理化学学报 |
| PublicationTitleAlternate | Acta Physico-Chimica Sinica |
| PublicationTitle_FL | Acta Physico-Chimica Sinica |
| PublicationYear | 2014 |
| Publisher | 太原理工大学化学化工学院,太原,030024%太原理工大学化学化工学院，太原030024 中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001%太原理工大学精细化工研究所,太原,030024%中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001 |
| Publisher_xml | – name: 中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001%太原理工大学精细化工研究所,太原,030024%中国科学院山西煤炭化学研究所，煤转化国家重点实验室，太原030001 – name: 太原理工大学化学化工学院,太原,030024%太原理工大学化学化工学院，太原030024 |
| SSID | ssib001105268 ssj0030168 ssib024507715 ssib002258135 ssib051374152 ssib057925156 |
| Score | 2.0125575 |
| Snippet | 通过N2吸附、X射线衍射（XRD）、X射线光电子能谱（XPS）、H2程序升温还原（H2-TPR）、CO2程序升温脱附（CO2-TPD）和热重分析（TGA）等多种表征手段和催化反应性能评价，研究了铈助剂的添加对V/SiO2催化CO2氧化乙苯脱氢性能的影响.... O643; 通过N2吸附、X射线衍射(XRD)、X射线光电子能谱(XPS)、H2程序升温还原(H2-TPR)、CO2程序升温脱附(CO2-TPD)和热重分析(TGA)等多种表征手段和催化反应性能评价，研究了铈助剂的添加对V/SiO2催化CO2氧化乙苯脱氢性能的影响.结果表明，... |
| SourceID | wanfang chongqing |
| SourceType | Aggregation Database Publisher |
| StartPage | 351 |
| SubjectTerms | 乙苯脱氢 二氧化碳 氧化铈 苯乙烯 负载型钒催化剂 |
| Title | Ce助剂对V/SiO2催化CO2氧化乙苯脱氢性能的影响 |
| URI | http://lib.cqvip.com/qk/92644X/201402/48524127.html https://d.wanfangdata.com.cn/periodical/wlhxxb201402023 |
| Volume | 30 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwvV1Lb9QwELZKOcAF8RQtD_WAj9smflucstldlSIeh7b0ttokTouEtjxaUfWESi-8TkhIcORSISG1PfbQf0NKfwA_gLGTTVK6Eo8Dl2gyHo9nPIn92bEdhG6QKEoFFXHDg-QG417U0NQzjZ5KBetFVGr3xfTOXTE9x2YW-MLIiR-1VUurK9FkvD50X8m_RBV4EFe7S_YvIlsqBQbQEF-4QoTh-kcxDg1uc6wCHGhHaKyIJYIObup5-5H04T3HAHYQOiLEWoSWKXDTw4EsmbjNIBPWoElh1bQ6LAFMfyDscqk8FyRR3GzhtsQ6sGKgB26tMMeaYtWqw14rBtZZM0Hew0rUygV7WzioE8L5xAcPg9Md4sBzhgAtLaGtUZWIM10pmwKC2nf-QAGdI1oY1sxlbmHVcZnAU1WJCOuEVs4W5hwtSqzPjvjVvOhAMHD-tKG4Ix6CpQGvKau5etz5klPlypOca1D7JBxSHAmhAQUIhAn_r8a0O7Z61RCTcntqvZ09VkCoqgMs5yHy3owWZwGb4k4N63OpEnb65_7tuckH0wtNYg9wIh7xK4BRLvt8_mhpbS2yYYJBCqEn0EkipW8X4nZuzVQg3ndnENVAJld-BeoJNCg21-Ce-9Si4hKkc6kBs9sTonI8Bj1YsSG2cDZf22DNnjpmtD1hZWm5v_gEcKPbxtdPe_3FGuKcPYvOFEPFiSB_78-hkfWl8-hUOPhD4wV0MzTZ6y_Zq41se29-yr7r2cbX7O0HeL8PdraA-Lb38fDN9uHm7sHO54MXW4cv979_2sz2d7P37y6i2U57NpxuFD9DacRc0QYzsUhiI5mJooRppY2QXswjBQDBV9KkqUyIZNykzPdSoahRKfElQB0_oZITegmN9pf75jKaoET3UmiilUkSFkckMhrGVCzRXo8mJOqNofGyDrqP8zNvukxxwPpEjqGJolK6RUP4rPtLWMd_L3IFnbZ0PpV5FY2uPF011wDcr0TX3bPwEyHDsls |
| linkProvider | Ingenta |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Ce%E5%8A%A9%E5%89%82%E5%AF%B9V%2FSiO2%E5%82%AC%E5%8C%96CO2%E6%B0%A7%E5%8C%96%E4%B9%99%E8%8B%AF%E8%84%B1%E6%B0%A2%E6%80%A7%E8%83%BD%E7%9A%84%E5%BD%B1%E5%93%8D&rft.jtitle=%E7%89%A9%E7%90%86%E5%8C%96%E5%AD%A6%E5%AD%A6%E6%8A%A5&rft.au=%E5%BC%A0%E6%B5%B7%E6%96%B0&rft.au=%E9%99%88%E6%A0%91%E4%BC%9F&rft.au=%E5%B4%94%E6%9D%8F%E9%9B%A8&rft.au=%E6%BD%98%E5%A4%A7%E6%B5%B7&rft.date=2014&rft.pub=%E5%A4%AA%E5%8E%9F%E7%90%86%E5%B7%A5%E5%A4%A7%E5%AD%A6%E5%8C%96%E5%AD%A6%E5%8C%96%E5%B7%A5%E5%AD%A6%E9%99%A2%2C%E5%A4%AA%E5%8E%9F%2C030024%25%E5%A4%AA%E5%8E%9F%E7%90%86%E5%B7%A5%E5%A4%A7%E5%AD%A6%E5%8C%96%E5%AD%A6%E5%8C%96%E5%B7%A5%E5%AD%A6%E9%99%A2%EF%BC%8C%E5%A4%AA%E5%8E%9F030024&rft.issn=1000-6818&rft.issue=2&rft.spage=351&rft.epage=358&rft_id=info:doi/10.3866%2FPKU.WHXB201312021&rft.externalDocID=wlhxxb201402023 |
| thumbnail_s | http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fimage.cqvip.com%2Fvip1000%2Fqk%2F92644X%2F92644X.jpg http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fwlhxxb%2Fwlhxxb.jpg |