{"title":"新型铂催化剂的合成及其在光活化氢硅烷化反应中的应用","authors":"Weifu Zhang, Guo Jiang, Kai Liao","doi":"10.1007/s12633-024-03103-8","DOIUrl":null,"url":null,"abstract":"<div><p>Photocatalyzed hydrosilication has the advantages of high reaction efficiency and environmental friendliness. However, the cost of photosensitive platinum catalysts is very high, hindering their applications. In this work, a novel and cost-effective photosensitive platinum catalyst is synthesized and can effectively catalyze the hydrosilylation reaction under ultraviolet light. It is found that Pt catalysts exhibit catalytic activity under ultraviolet light when the ratio of Platinum chloride bonding and cyclopentadienyl (Pt-Cl:Cp) is higher than 1:1.2. The cost is reduced by 50%. The structure of this platinum catalyst is characterized using FTIR and NMR techniques. Under ultraviolet light, the new photosensitive platinum catalyst’s catalytic efficiency increases from approximately 5% to 60%. The viscosity of prepared silicone rubber was measured. Results show that the prepared silicone rubber has a storing time of over 30 days in shaded environments, and can be completely cured within 2 min under ultraviolet light. The thermal decomposition residual mass of photocured silicone rubber products is as high as 70%, having good thermal stability. As the content of the platinum catalyst increases from 20 to 100 ppm, the reaction conversion rate of the hydrosilylation reaction increases from 43 to 60%. The hardness of the silicone rubber also increases from the initial 11 degrees to 20 degrees. This novel photosensitive platinum catalyst has potential applications in 3D printing and electronic packaging.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of a Novel Platinum Catalyst and Its Application in the Photoactivated Hydrosilylation Reaction\",\"authors\":\"Weifu Zhang, Guo Jiang, Kai Liao\",\"doi\":\"10.1007/s12633-024-03103-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Photocatalyzed hydrosilication has the advantages of high reaction efficiency and environmental friendliness. However, the cost of photosensitive platinum catalysts is very high, hindering their applications. In this work, a novel and cost-effective photosensitive platinum catalyst is synthesized and can effectively catalyze the hydrosilylation reaction under ultraviolet light. It is found that Pt catalysts exhibit catalytic activity under ultraviolet light when the ratio of Platinum chloride bonding and cyclopentadienyl (Pt-Cl:Cp) is higher than 1:1.2. The cost is reduced by 50%. The structure of this platinum catalyst is characterized using FTIR and NMR techniques. Under ultraviolet light, the new photosensitive platinum catalyst’s catalytic efficiency increases from approximately 5% to 60%. The viscosity of prepared silicone rubber was measured. Results show that the prepared silicone rubber has a storing time of over 30 days in shaded environments, and can be completely cured within 2 min under ultraviolet light. The thermal decomposition residual mass of photocured silicone rubber products is as high as 70%, having good thermal stability. As the content of the platinum catalyst increases from 20 to 100 ppm, the reaction conversion rate of the hydrosilylation reaction increases from 43 to 60%. The hardness of the silicone rubber also increases from the initial 11 degrees to 20 degrees. This novel photosensitive platinum catalyst has potential applications in 3D printing and electronic packaging.</p></div>\",\"PeriodicalId\":776,\"journal\":{\"name\":\"Silicon\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Silicon\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12633-024-03103-8\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Silicon","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12633-024-03103-8","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synthesis of a Novel Platinum Catalyst and Its Application in the Photoactivated Hydrosilylation Reaction
Photocatalyzed hydrosilication has the advantages of high reaction efficiency and environmental friendliness. However, the cost of photosensitive platinum catalysts is very high, hindering their applications. In this work, a novel and cost-effective photosensitive platinum catalyst is synthesized and can effectively catalyze the hydrosilylation reaction under ultraviolet light. It is found that Pt catalysts exhibit catalytic activity under ultraviolet light when the ratio of Platinum chloride bonding and cyclopentadienyl (Pt-Cl:Cp) is higher than 1:1.2. The cost is reduced by 50%. The structure of this platinum catalyst is characterized using FTIR and NMR techniques. Under ultraviolet light, the new photosensitive platinum catalyst’s catalytic efficiency increases from approximately 5% to 60%. The viscosity of prepared silicone rubber was measured. Results show that the prepared silicone rubber has a storing time of over 30 days in shaded environments, and can be completely cured within 2 min under ultraviolet light. The thermal decomposition residual mass of photocured silicone rubber products is as high as 70%, having good thermal stability. As the content of the platinum catalyst increases from 20 to 100 ppm, the reaction conversion rate of the hydrosilylation reaction increases from 43 to 60%. The hardness of the silicone rubber also increases from the initial 11 degrees to 20 degrees. This novel photosensitive platinum catalyst has potential applications in 3D printing and electronic packaging.
期刊介绍:
The journal Silicon is intended to serve all those involved in studying the role of silicon as an enabling element in materials science. There are no restrictions on disciplinary boundaries provided the focus is on silicon-based materials or adds significantly to the understanding of such materials. Accordingly, such contributions are welcome in the areas of inorganic and organic chemistry, physics, biology, engineering, nanoscience, environmental science, electronics and optoelectronics, and modeling and theory. Relevant silicon-based materials include, but are not limited to, semiconductors, polymers, composites, ceramics, glasses, coatings, resins, composites, small molecules, and thin films.