Effects of hierarchical structure on the performance of tin oxide-supported platinum catalyst for room-temperature formaldehyde oxidation

作     者：段媛媛 宋少青 程蓓 余家国 姜传佳 Yuanyuan Duan;Shaoqing Song;Bei Cheng;Jiaguo Yu;Chuanjia Jiang

作者机构：武汉理工大学材料复合新技术国家重点实验室湖北武汉430070 东华理工大学放射性地质与勘探技术国防重点学科实验室江西南昌330013 沙特阿卜杜勒阿齐兹国王大学科学部物理系 

基　　金：supported by the National Natural Science Foundation of China (51320105001, 51372190, 21573170, 51272199, 21433007) the National Basic Research Program of China (973 program, 2013CB632402) the Natural Science Foundation of Hubei Province (2015CFA001) the Fundamental Research Funds for the Central Universities (WUT: 2015-Ⅲ-034) Innovative Research Funds of SKLWUT (2015-ZD-1)~~ 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2017年第38卷第2期

页      码：199-206页

摘      要：Flower-like tin oxide-supported platinum（Pt/SnOx） with a hierarchical structure was synthesized by a hydrothermal method and characterized by XRD,SEM,TEM,high resolution TEM,XPS and nitrogen *** flower-like Pt/SnOx microspheres of 1 μm in diameter were composed of staggered petal-like nanosheets with a thickness of 20 *** nanoparticles（NPs） of 2-3 nm were well dispersed on the SnOx *** catalyst was tested in the catalytic oxidation of gaseous formaldehyde（HCHO） at room temperature,and exhibited enhanced activity compared to Pt NPs supported on commercial SnO and ground *** removal of 87%was achieved over the hierarchical Pt/SnOx after 1 h of reaction,which was 1.5 times that over the ground SnOx-supported Pt（Pt/g-SnOx）,and the high activity was maintained after six recycles,showing the high stability of this *** decomposition kinetics was modeled as a second order *** reaction rate constant for Pt/SnOx was 5.6 times higher than Pt/*** hierarchical pore structure was beneficial for the diffusion and adsorption of HCHO molecules,and the highly dispersed Pt NPs on the SnOx nanosheets were the active sites for the oxidative decomposition of HCHO into CO2 and *** study provided a promising approach for designing efficient catalysts for indoor HCHO removal at ambient temperature.

主 题 词：Formaldehyde catalytic oxidation Room temperature Tin oxide Platinum Hierarchical structure Flower-like 

学科分类：081705[081705] 0817[工学-轻工类] 08[工学] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/S1872-2067(16)62551-2

馆 藏 号：203216273...