Ana Paula C. Ribeiro , Emmanuele Fontolan , Elisabete C.B.A. Alegria , Maximilian N. Kopylovich , Roberta Bertani , Armando J.L. Pombeiro
{"title":"多壁碳纳米管和氧化石墨烯添加剂对三维金属催化剂对1-苯乙醇氧化活性的影响","authors":"Ana Paula C. Ribeiro , Emmanuele Fontolan , Elisabete C.B.A. Alegria , Maximilian N. Kopylovich , Roberta Bertani , Armando J.L. Pombeiro","doi":"10.1016/j.molcata.2016.07.015","DOIUrl":null,"url":null,"abstract":"<div><p>3<em>d</em> metal (Cu, Fe, Co, V) containing composite catalysts for the solvent-free microwave-assisted transformation of 1-phenylethanol to acetophenone with <em>tert</em>-butyl hydroperoxide (TBHP) as oxidant were prepared by ball milling. The influence of multiwalled carbon nanotubes (CNTs) and graphene oxide (GO) additives on the catalytic activity of the catalysts was studied. CNTs or GO were mixed by ball milling with the metal salts (CoCl<sub>2</sub>), oxides (CuO, Fe<sub>2</sub>O<sub>3</sub>, V<sub>2</sub>O<sub>5</sub>) or binary systems (Fe<sub>2</sub>O<sub>3</sub>-CoCl<sub>2,</sub> CoCl<sub>2</sub>-V<sub>2</sub>O<sub>5</sub>, CuO-Fe<sub>2</sub>O<sub>3</sub>). For CoCl<sub>2</sub>-based catalytic systems, addition of small amounts (0.1–5%) of CNTs or GO leads to significant improvement in catalytic activity, e.g. 1% of the CNTs additive allows to rise yields from 28 to 77%, under the same catalytic conditions. The CoCl<sub>2</sub>-5%CNTs composite is the most active among the studied ones with 85% yield and TON of 43 after 1<!--> <!-->h.</p></div>","PeriodicalId":370,"journal":{"name":"Journal of Molecular Catalysis A: Chemical","volume":"426 ","pages":"Pages 557-563"},"PeriodicalIF":5.0620,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.molcata.2016.07.015","citationCount":"13","resultStr":"{\"title\":\"The influence of multiwalled carbon nanotubes and graphene oxide additives on the catalytic activity of 3d metal catalysts towards 1-phenylethanol oxidation\",\"authors\":\"Ana Paula C. Ribeiro , Emmanuele Fontolan , Elisabete C.B.A. Alegria , Maximilian N. Kopylovich , Roberta Bertani , Armando J.L. Pombeiro\",\"doi\":\"10.1016/j.molcata.2016.07.015\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>3<em>d</em> metal (Cu, Fe, Co, V) containing composite catalysts for the solvent-free microwave-assisted transformation of 1-phenylethanol to acetophenone with <em>tert</em>-butyl hydroperoxide (TBHP) as oxidant were prepared by ball milling. The influence of multiwalled carbon nanotubes (CNTs) and graphene oxide (GO) additives on the catalytic activity of the catalysts was studied. CNTs or GO were mixed by ball milling with the metal salts (CoCl<sub>2</sub>), oxides (CuO, Fe<sub>2</sub>O<sub>3</sub>, V<sub>2</sub>O<sub>5</sub>) or binary systems (Fe<sub>2</sub>O<sub>3</sub>-CoCl<sub>2,</sub> CoCl<sub>2</sub>-V<sub>2</sub>O<sub>5</sub>, CuO-Fe<sub>2</sub>O<sub>3</sub>). For CoCl<sub>2</sub>-based catalytic systems, addition of small amounts (0.1–5%) of CNTs or GO leads to significant improvement in catalytic activity, e.g. 1% of the CNTs additive allows to rise yields from 28 to 77%, under the same catalytic conditions. The CoCl<sub>2</sub>-5%CNTs composite is the most active among the studied ones with 85% yield and TON of 43 after 1<!--> <!-->h.</p></div>\",\"PeriodicalId\":370,\"journal\":{\"name\":\"Journal of Molecular Catalysis A: Chemical\",\"volume\":\"426 \",\"pages\":\"Pages 557-563\"},\"PeriodicalIF\":5.0620,\"publicationDate\":\"2017-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.molcata.2016.07.015\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Molecular Catalysis A: Chemical\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1381116916302655\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Molecular Catalysis A: Chemical","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1381116916302655","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The influence of multiwalled carbon nanotubes and graphene oxide additives on the catalytic activity of 3d metal catalysts towards 1-phenylethanol oxidation
3d metal (Cu, Fe, Co, V) containing composite catalysts for the solvent-free microwave-assisted transformation of 1-phenylethanol to acetophenone with tert-butyl hydroperoxide (TBHP) as oxidant were prepared by ball milling. The influence of multiwalled carbon nanotubes (CNTs) and graphene oxide (GO) additives on the catalytic activity of the catalysts was studied. CNTs or GO were mixed by ball milling with the metal salts (CoCl2), oxides (CuO, Fe2O3, V2O5) or binary systems (Fe2O3-CoCl2, CoCl2-V2O5, CuO-Fe2O3). For CoCl2-based catalytic systems, addition of small amounts (0.1–5%) of CNTs or GO leads to significant improvement in catalytic activity, e.g. 1% of the CNTs additive allows to rise yields from 28 to 77%, under the same catalytic conditions. The CoCl2-5%CNTs composite is the most active among the studied ones with 85% yield and TON of 43 after 1 h.
期刊介绍：
The Journal of Molecular Catalysis A: Chemical publishes original, rigorous, and scholarly full papers that examine the molecular and atomic aspects of catalytic activation and reaction mechanisms in homogeneous catalysis, heterogeneous catalysis (including supported organometallic catalysis), and computational catalysis.
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