L. A. Polevoi, E. A. Kozlova, A. V. Zhurenok, E. Yu. Gerasimov, A. A. Saraev, M. V. Golikova, A. E. Baranchikov
{"title":"Epoxide-Assisted Synthesis of Photocatalytically Active TiO2 and Pt/TiO2 Aerogels","authors":"L. A. Polevoi, E. A. Kozlova, A. V. Zhurenok, E. Yu. Gerasimov, A. A. Saraev, M. V. Golikova, A. E. Baranchikov","doi":"10.1134/S0023158424601980","DOIUrl":null,"url":null,"abstract":"<p>For the first time, amorphous TiO<sub>2</sub> aerogels with a high specific surface area (420 m<sup>2</sup>/g) and low geometric density (~0.1 g/cm<sup>3</sup>) were obtained using epoxide-induced gelation in <i>N</i>,<i>N</i>-dimethylformamide. Impregnation of the resulting aerogels with aqueous solutions of H<sub>2</sub>PtCl<sub>6</sub> and NaBH<sub>4</sub> followed by thermal annealing made it possible to obtain Pt/TiO<sub>2</sub> photocatalysts, which showed very high activity for titanium dioxide–based aerogels in the generation of hydrogen from aqueous alcohol solutions (~5 <span>\\({\\text{mmo}}{{{\\text{l}}}_{{{{{\\text{H}}}_{{\\text{2}}}}}}}\\)</span> h<sup>–1</sup> g<sup>–1</sup>).</p>","PeriodicalId":682,"journal":{"name":"Kinetics and Catalysis","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kinetics and Catalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0023158424601980","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
For the first time, amorphous TiO2 aerogels with a high specific surface area (420 m2/g) and low geometric density (~0.1 g/cm3) were obtained using epoxide-induced gelation in N,N-dimethylformamide. Impregnation of the resulting aerogels with aqueous solutions of H2PtCl6 and NaBH4 followed by thermal annealing made it possible to obtain Pt/TiO2 photocatalysts, which showed very high activity for titanium dioxide–based aerogels in the generation of hydrogen from aqueous alcohol solutions (~5 \({\text{mmo}}{{{\text{l}}}_{{{{{\text{H}}}_{{\text{2}}}}}}}\) h–1 g–1).
期刊介绍:
Kinetics and Catalysis Russian is a periodical that publishes theoretical and experimental works on homogeneous and heterogeneous kinetics and catalysis. Other topics include the mechanism and kinetics of noncatalytic processes in gaseous, liquid, and solid phases, quantum chemical calculations in kinetics and catalysis, methods of studying catalytic processes and catalysts, the chemistry of catalysts and adsorbent surfaces, the structure and physicochemical properties of catalysts, preparation and poisoning of catalysts, macrokinetics, and computer simulations in catalysis. The journal also publishes review articles on contemporary problems in kinetics and catalysis. The journal welcomes manuscripts from all countries in the English or Russian language.