铂合金催化网及其在氨氧化法中的应用和研究进展  

Progress in research and application of platinum alloy catalyst gauzes for ammonia oxidation process

作　　者：罗仙慧 谭志龙 黎玉盛 秦庆彦 王兴宇 巫小飞 LUO Xianhui;TAN Zhilong;LI Yusheng;QIN Qingyan;WANG Xingyu;WU Xiaofei(Yunnan Precious Metals New Materials Holding Group Co.Ltd.,Yunnan Precious Metal Laboratory Co.Ltd.,Kunming 650106,China)

机构地区：[1]云南省贵金属新材料控股集团股份有限公司,云南贵金属实验室公司,昆明650106

出　　处：《贵金属》2024年第2期88-95,共8页Precious Metals

基　　金：云南省贵金属实验室产业化技术攻关项目(2022050203);云南省贵金属实验室重点研发计划(2023050210);云南省院士专家工作站(202305AF150170)。

摘　　要：铂合金催化网具有化学稳定性好、催化活性和目标物选择性高、使用寿命长等优点,在氨氧化法制备硝酸和氢氰酸等化工原料中难以替代。本文概述了铂合金催化网从合金化到网面编织的制备加工技术,并分别介绍了氨氧化法合成硝酸和氢氰酸的反应机理和反应诱导催化网表面变化的研究进展,最后探讨了氨氧化法及铂合金催化网的未来发展趋势。Owing to good chemical stability,high catalytic activity and selectivity for target products as well as long service life,platinum alloy gauzes are irreplaceable catalysts for the synthesis of nitric acid,hydrocyanic acid and other chemicals via the ammonia oxidation process.In this paper,the preparation and processing of platinum alloy catalyst gauzes were briefly summarized from alloying to knitting.And then the mechanism of ammonia oxidation involved in the production of nitric acid and hydrocyanic acid was explored and the recent progress in the reaction-induced surface reconstruction was also introduced.Finally,the future development trends for the catalyst gauzes and ammonia oxidation method were proposed.

关 键 词：铂合金 催化网 氨氧化 HNO3制备 HCN制备 

分 类 号：TG146.3[一般工业技术—材料科学与工程]