{"title":"尿素醇解催化合成碳酸甘油：金属盐价态与氨吸附动力学的相互作用","authors":"Dongxia Wang, Kai Wang, Wenbo Zhao, Zhiyong Xu","doi":"10.1007/s10562-025-05046-0","DOIUrl":null,"url":null,"abstract":"<div><p>A series of transition metal sulfates and rare earth metal sulfates were synthesized and employed as catalysts for the catalytic alcoholysis reaction of glycerol with urea to produce glyceryl carbonate. The optimal catalytic conditions were explored and the catalytic performance of various metal sulfates were compared. Compared with bivalent metal salts, trivalent metal sulfates showed higher catalytic activity, with La<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> demonstrating the highest catalytic performance in particular. By analyzing the ammonia absorption capacity of divalent metal salts and the thermal decomposition performance of metal coordination compounds, it was found that ZnSO<sub>4</sub> exhibited the highest ammonia absorption capacity, consistent with the catalytic activity of ZnSO<sub>4</sub>. The activation energy for the decomposition of Cu(NH<sub>3</sub>)<sub>4</sub>SO<sub>4</sub>·H<sub>2</sub>O to Cu(NH<sub>3</sub>)SO<sub>4</sub>·H<sub>2</sub>O was lower than that of Ni(NH<sub>3</sub>)<sub>6</sub>SO<sub>4</sub> to Ni(NH<sub>3</sub>)<sub>2</sub>SO<sub>4</sub>, indicating that Cu<sup>2+</sup> is more easily separated from –NH<sub>2</sub> group in urea during the catalysis process. This finding aligns with the observed catalytic activity of the metal salts.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Catalytic Synthesis of Glycerol Carbonate via Urea Alcoholysis: Interplay of Metal Salt Valence States and Ammonia Adsorption Dynamics\",\"authors\":\"Dongxia Wang, Kai Wang, Wenbo Zhao, Zhiyong Xu\",\"doi\":\"10.1007/s10562-025-05046-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A series of transition metal sulfates and rare earth metal sulfates were synthesized and employed as catalysts for the catalytic alcoholysis reaction of glycerol with urea to produce glyceryl carbonate. The optimal catalytic conditions were explored and the catalytic performance of various metal sulfates were compared. Compared with bivalent metal salts, trivalent metal sulfates showed higher catalytic activity, with La<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> demonstrating the highest catalytic performance in particular. By analyzing the ammonia absorption capacity of divalent metal salts and the thermal decomposition performance of metal coordination compounds, it was found that ZnSO<sub>4</sub> exhibited the highest ammonia absorption capacity, consistent with the catalytic activity of ZnSO<sub>4</sub>. The activation energy for the decomposition of Cu(NH<sub>3</sub>)<sub>4</sub>SO<sub>4</sub>·H<sub>2</sub>O to Cu(NH<sub>3</sub>)SO<sub>4</sub>·H<sub>2</sub>O was lower than that of Ni(NH<sub>3</sub>)<sub>6</sub>SO<sub>4</sub> to Ni(NH<sub>3</sub>)<sub>2</sub>SO<sub>4</sub>, indicating that Cu<sup>2+</sup> is more easily separated from –NH<sub>2</sub> group in urea during the catalysis process. This finding aligns with the observed catalytic activity of the metal salts.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":508,\"journal\":{\"name\":\"Catalysis Letters\",\"volume\":\"155 6\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10562-025-05046-0\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-025-05046-0","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Catalytic Synthesis of Glycerol Carbonate via Urea Alcoholysis: Interplay of Metal Salt Valence States and Ammonia Adsorption Dynamics
A series of transition metal sulfates and rare earth metal sulfates were synthesized and employed as catalysts for the catalytic alcoholysis reaction of glycerol with urea to produce glyceryl carbonate. The optimal catalytic conditions were explored and the catalytic performance of various metal sulfates were compared. Compared with bivalent metal salts, trivalent metal sulfates showed higher catalytic activity, with La2(SO4)3 demonstrating the highest catalytic performance in particular. By analyzing the ammonia absorption capacity of divalent metal salts and the thermal decomposition performance of metal coordination compounds, it was found that ZnSO4 exhibited the highest ammonia absorption capacity, consistent with the catalytic activity of ZnSO4. The activation energy for the decomposition of Cu(NH3)4SO4·H2O to Cu(NH3)SO4·H2O was lower than that of Ni(NH3)6SO4 to Ni(NH3)2SO4, indicating that Cu2+ is more easily separated from –NH2 group in urea during the catalysis process. This finding aligns with the observed catalytic activity of the metal salts.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
