纳米氧化锆异相结限域双金属铂-铜催化剂构筑及室温高效净化甲醛研究  

Nano Zirconia Phase-junction with Confi ned Pt-Cu Metal Catalysts:Construction and Mechanistic Insight on Effi cient Purifi cation of Formaldehyde at Room Temperature

作　　者：邱云星 燕维文 刘一萱 韦雨心 张宇飞 Qiu Yunxing;Yan Weiwen;Liu Yixuan;Wei Yuxin;Zhang Yufei(School of Environment&Municipal Engineering,Xi'an University of Architecture&Technology,Shaanxi,710055)

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西710055

出　　处：《当代化工研究》2025年第2期109-111,共3页Modern Chemical Research

基　　金：国家自然科学基金委面上项目“纳米孪晶异相结限域双金属催化剂构筑及光热协同降解臭氧关键前体物机理”(项目编号:52370119);中国科学院黄土与第四纪地质国家重点实验室开放基金“纳米异相结限域过渡金属催化剂构筑及其室温甲醛净化机制”(项目编号:SKLLQG2301)。

摘　　要：常温催化氧化技术被认为是一种高效、绿色、环境友好的HCHO消除技术。采用碱性醇热还原法可控合成了双金属铂-铜(Pt-Cu)负载的四方单斜氧化锆(TMZ)常温催化剂Pt-Cu/TMZ,Cu^(2+)与亚纳米团簇Pt0的协同作用,进一步提升了Pt-Cu/TMZ常温催化HCHO的稳定性;Cu^(2+)引入后,Pt-Cu/TMZ的介孔结构发生坍塌,阻碍了HCHO和H_(2)O的吸附传输;Pt0与TMZ异相结界面强关联作用促进了表面晶格氧活化,促进HCHO的高效室温净化。The catalytic oxidation at room temperature is considered to be an efficient,green and environmentally friendly HCHO elimina-tion technology.Supporting by bimetallic Pt-Cu by alkaline alcohol thermal reduction method on tetragonal-monoclinic zirconia(TMZ).The results show that the synergistic effect with sub-nanocluster Pt0 and Cu^(2+)improves the stability of HCHO catalyzed by Pt-Cu/TMZ at room temperature.After the introduction of Cu^(2+),the mesoporous structure of Pt-Cu/TMZ,hindering the adsorption and transport of HCHO and H_(2)O.The strong correlation between Pt0 and TMZ promoted the surface lattice oxygen activation,and caused the efficient purification of HCHO at room temperature.

关 键 词：甲醛 催化氧化 异相结 亚纳米团簇 

分 类 号：TQ426.6[化学工程]