碳载体对PtRu/C催化剂性能的影响研究

Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 3

Abstract

本文采用水热方法合成不同粒径和形貌的碳球,并将其作为载体,采用化学镀的方法制备PtRu/C催化剂;应用XRD、SEM和TEM对碳球及催化剂的结构和形貌进行表征。采用电化学方法测试不同形貌碳球的比表面积以及碳球担载催化剂的催化活性,结果表明,水热反应条件对碳球的粒径及形貌影响显著,三种碳球担载催化剂的活性按照以下顺序衰减:多孔的粒径约为100 nm的碳球担载PtRu催化剂优于连体碳球优于直径约500 nm的单分散碳球担载催化剂。TEM分析结果表明,在碳球表面化学镀的PtRu纳米颗粒均匀分散在碳载体表面,其平均粒径约为3 nm。电化学测试表明粒径为100 nm的多孔碳球的电化学比表面积较大,以这种碳球为载体的PtRu/C催化剂对甲醇氧化的催化性能较高。

Authors and Affiliations

ZHU Jing CHEN Jun

Keywords

Related Articles

Advancements in studies on energy budget of abalone

Parameters in energy budget equation of abalone are introduced, the study methods and status quo are explained comprehensively in this paper.

Malyngamides类海洋天然产物合成研究进展

从蓝藻中分离的malyngamides类化合物因其独特的化学结构和良好的生物活性,吸引了有机化学家极大的关注,笔者一直致力于malyngamides类海洋天然产物的全合成研究,完成了其中几类代表性分子的全合成。笔者根据结构上的不同将malyngamides...

2-丁烯液态临氢异构制1-丁烯热力学分析

本文利用文献数据和Aspen Plus软件计算相结合的方法,在313.15~363.15 K的温度和0.7~1.6 MPa的压力范围内,研究2-丁烯液态临氢异构制1-丁烯体系的反应热力学特征。结果表明,双键异构反应为吸热反应,顺反异构反应为放热反应,但热效应不...

A fast arc detection method for scanned line-drawing recognition based on discrete curvature

This paper presents a fast arc detection method which is used for scanned line-drawing graphics recognition. It is a kind of method which is from arc supposition to arc verification. Firstly extract the skeleton of the l...

Study on corrosion mechanism of RH immersion tube castable

Corrosion mechanism of RH immersion tube castable is yet to be revealed due to few studies on the reactions between RH immersion tube castable and molten slag. In this paper, according to the phase equilibrium theory and...

Download PDF file
  • EP ID EP96747
  • DOI -
  • Views 145
  • Downloads 0

How To Cite

ZHU Jing CHEN Jun (2008). 碳载体对PtRu/C催化剂性能的影响研究. Science Paper Online, 3(3), 209-213. https://europub.co.uk/articles/-A-96747