最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
Au-Pt雙金屬納米粒子的制備及其電催化性質(zhì)
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

江蘇省普通高校自然科學研究計劃(08KJB150007)；江蘇省貴金屬深加工技術(shù)及其應用重點建設(shè)實驗室開放研究課題基金(SYGK0712)；江蘇技術(shù)師范學院青年基金(KYZ08023)；江蘇省高校自然科學重大基礎(chǔ)研究(06KJA61019)資助


Preparation and Electrocatalysis Properties of Gold-Platinum Bimetallic Nanoparticles
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    在PEG10000/Vc/HAuCl4體系中，用Vc還原HAuCl4制備金納米粒子，以所制備的金納米粒子為晶種，通過控制HAuCl4與H2PtCl6的質(zhì)量比，制備不同Pt/Au比的雙金屬納米粒子，并進一步研究其對H2O2電化學氧化的催化作用。紫外-可見光譜(Uv-vis)、透射電子顯微鏡(TEM)、選區(qū)電子衍射(SAED)、X射線粉末衍射(XRD)等實驗結(jié)果表明：Au-Pt雙金屬納米粒子為面心立方結(jié)構(gòu)的合金。用循環(huán)伏安法對Au-Pt雙金屬納米粒子修飾的玻碳電極的電化學性能進行測試，結(jié)果表明：Au-Pt雙金屬納米粒子對H2O2電化學氧化有一定的催化作用。催化效率隨Au-Pt雙金屬粒子中Pt含量的增加而增加。

    Abstract:

    Gold nanoparticles were prepared in PEG10000/Vc/HAuCl4 system with Vc as the reducing agent. Then gold-platinum bimetallic nanoparticles with different Pt/Au ratio were formed using a simple gold seed-mediated growth method by controlling the mass ratio of HAuCl4/H2PtCl6. Their electrocatalysis effects on H2O-2 electrochemical oxidation were studied. Results of Uv-visible spectra (Uv-vis), transmission electronic microscopy (TEM), X-ray diffraction (XRD) and selected area electron diffraction (SAED) show that Au-Pt bimetallic nanoparticles are of face-centered cubic structure. The electrochemical performance of Au-Pt/glassy carbon (GC) electrode was investigated by cyclic voltammetry method. The result indicates that the Au-Pt/GC electrode has good electrocatalytic activity for H2O2 oxidation. The catalytic efficiency is increased with more Pt content in Au-Pt alloys.

    參考文獻
    相似文獻
    引證文獻
引用本文

李中春,劉 燕,尚通明,周全法. Au-Pt雙金屬納米粒子的制備及其電催化性質(zhì)[J].稀有金屬材料與工程,2011,40(2):343~346.[Li Zhongchun, Liu Yan, Shang Tongming, Zhou Quanfa. Preparation and Electrocatalysis Properties of Gold-Platinum Bimetallic Nanoparticles[J]. Rare Metal Materials and Engineering,2011,40(2):343~346.]
DOI：[doi]

復制
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2010-03-06
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: