Effects of method of loading on properties of carbon ]aerogels supported Pt catalyst

YUAN Xianxia; DU Juan; CHAO Yajun; MA Zifeng

您当前的位置：

首页 >

文章列表页 >

Effects of method of loading on properties of carbon ]aerogels supported Pt catalyst

更新时间：2025-12-10

- Effects of method of loading on properties of carbon ]aerogels supported Pt catalyst
- CIESC Journal Issue 10, Pages: 2519-2523(2007)
- 作者机构：
  
  上海交通大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 October 2007，
  
  Published：05 October 2007
- 稿件说明：
移动端阅览
YUAN Xianxia, DU Juan, CHAO Yajun, et al. Effects of method of loading on properties of carbon ]aerogels supported Pt catalyst[J]. CIESC Journal, 2007, (10): 2519-2523.
DOI：

YUAN Xianxia, DU Juan, CHAO Yajun, et al. Effects of method of loading on properties of carbon ]aerogels supported Pt catalyst[J]. CIESC Journal, 2007, (10): 2519-2523. DOI：

摘要

选择孔隙率高、孔隙尺寸小、比表面积大、电导率高、孔径大小及分布可控的新型炭材料炭气凝胶(CAs)为载体，通过在成品CAs表面负载和在CAs制备过程中同步负载两种途径制备了CAs负载的Pt催化剂，利用XRD、TEM、ICP及电化学循环伏安测试等手段对比讨论了负载途径对CAs载Pt催化剂物化性能及甲醇氧化催化活性的影响。结果表明，同步负载虽然可以简化制备工艺，但所制得的催化剂样品中催化活性组分Pt颗粒大、团聚严重、分散性差、负载量低，而且有许多Pt颗粒被包裹在CAs内部，因而导致了催化剂的有效利用率和催化性能降低。相反，通过在成品CAs表面负载的方法可以制得Pt颗粒小、分散均匀、实际负载量接近理论设计的高性能催化剂。

Abstract

Carbon aerogels (CAs) supported Pt catalysts were prepared separately by directly loading of Pt on the surface of CAs and simultaneously loading of Pt during the synthesis of CAs respectivelyXRD

TEM

ICP and electrochemical cyclic voltammograms were used to evaluate and comparatively discuss the effects of method of loading on the properties of CAs supported Pt catalystThe results showed that simultaneous loading led to large Pt particle size

poor Pt dispersion and low Pt loading quantity

resulting in poor catalytic performance for methanol oxidationOn the contrary

high performance CAs supported catalyst with well dispersed small Pt particle size could be obtained via direct loading.

关键词

Keywords

references

Views

138

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

喷雾干燥成型温度对浆态床合成甲醇CuO/ZnO/Al2O3催化剂活性及稳定性的影响

Preparation of λ-MnO2 catalyst from spent LiMn2O4-based lithium-ion battery

Mechanism of PCDD/Fs formation from PAHs catalyzed by metal compounds

Direct synthesis of W-SBA-15 catalysts and their catalytic performance for metathesis of ethylene and 2-butene to propylene

Modeling of macro kinetics of methanol oxidation in porous Pt-Ru anode for DMFC

Related Author

刘岩

郭启海

张小兵

李忠

WANG Qiang

ZHOU Chenxu

YANG Zeheng

MA Shichuang

Related Institution

1太原理工大学煤科学与技术教育部重点实验室，2太原煤气化公司技术中心

合肥工业大学化工学院

能源清洁利用国家重点实验室（浙江大学）

中国石油大学（北京）重质油国家重点实验室

太原理工大学洁净化工研究所

⁰