期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

Role of Bridge-bonded Formate in Formic Acid Dehydration to CO at Pt Electrode： Electrochemial in-situ Infrared Spectroscopic Study 被引量：1

电化学红外光谱研究铂电极上甲酸分解成C0的反应中桥式吸附甲酸根的作用
下载PDF
导出
摘要 Formic acid （HCOOH） decomposition at Pt film electrode has been studied by electrochem- ical in situ FTIR spectroscopy under attenuated-total-reflection configuration, in order to clarify whether bridge-bonded formate （HCOOD） is the reactive intermediate for COad for-mation from HCOOH molecules. When switching from HCOOH-free solution to HCOOH- containing solution at constant potential （E=0.4 V vs. RHE）, we found that immediately upon solution switch COad formation rate is the highest, while surface coverage of formate is zero, then after COad formation rate decreases, while formate coverage reaches a steady state coverage quickly within ca. 1 s. Potential step experiment from E=0.75 V to 0.35 V, reveals that formate band intensity drops immediately right after the potential step, while the COad signal develops slowly with time. Both facts indicate that formate is not the reactive intermediate for formic acid dehydration to CO.
作者 张尊彪 徐杰 康婧 陈艳霞
机构地区 中国科学技术大学化学物理系
出处 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2013年第4期471-476,J0002,共7页 化学物理学报（英文）
关键词 Mechanism for formic acid dehydration Formate intermediate CO pathway Pt electrode Infrared spectroscopic studies under attenuated total reflection configuration 甲酸脱水机理 CO路径 铂电极 甲酸根中间物
分类号 O [理学]
  • 相关文献

参考文献35

  • 1A. Hamnett, Accomplishments and Challenges, Interra- cial Electrochemistry, New York: Marcel Dekker Inc., 843 (1999).
  • 2M. W. Breiter, J. Electroanal. Chem. 14, 407 (1967).
  • 3A. Capon and R. Parsons, J. Electroanal. Chem. 45, 205 (1973).
  • 4T. D. Jarvi and E. M. Stuve, Electrocatalysis, New York: Wiley-VCH, 75 (1998).
  • 5S. G. Sun, Studying Electrocatalytic Oxidation of Small Organic Molecules With In-Situ Infrared Spectroscopy, in: J. Lipkowski, P. N. Ross, Eds. Electrocatalysis, New York: Wiley-VCH, 243 (1998).
  • 6B. Beden, J. M. Leger, and C. Lamy, Modern Aspects of Electrochemistry, New York: Plenum, 97 (1992).
  • 7E. Herrero and J. Feliu, Encyclopedia Electrochemistry Interracial Kinetics and Mass Transport, Weinheim, Germany: Wiley-VCH, 443 (2003).
  • 8P. Waszczuk, A. Crown, S. Mitrovski, and A. Wieck- owski, Electrocatalysis, Handbook of Fuel Cells, Chich- ester, the UK: John Wiley Sons, 635 (2003).
  • 9G. Samjeske and M. Osawa, Angew. Chem. Int. Ed. 44, 5694 (2005).
  • 10A. Kutschker and W. Vielstich, Electrochim. Acta 8, 985 (1963).

同被引文献51

  • 1Capon A, Parsons R. Oxidation of formic-acid at noble-metal electrodes. 1. Review of previews work[J]. Journal of Electroanalytical Chemistry, 1973, 44(1): 1-7.
  • 2Feliu J M, Herrero E. Fuel cell electrocatalysis//[M] Vielstich W, Lamm A, Gasteiger H A. (Eds.), Handbook of fuel cells: Fundamentals, technology, applications, chichester. John Wiley and Sons Ltd., 2003: 625.
  • 3Breiter M W. A study of intermediates adsobed on platinized-platinum during steady-state oxidation of methanol formic acid and formaldehyde[J]. Journal of Electroanalytical Chemistry, 1967, 14(4): 407-413.
  • 4Parsons R, VanderNoot T. The oxidation of small organic molecules. A survey of recent fuel cell related research[J]. Journal of Electroanalytical Chemistry, 1988, 257(1/2): 9-45.
  • 5Bockris J O M, Conway B E, White R E(Eds.). Modern aspects of electrochemistry[M]. New York: Kluwer Adcademic/Plenum Publishers, 1992: 97-263.
  • 6Jarvi T D, Stuve E M. Fundamental aspects of vacuum and electrocatalytic reactions of methanol and formic acid on platinum surfaces//[C]. Lipkowski J, Ross P N (Eds.), Electrocatalysis, New York: Wiley-VCH, 1998: 75.
  • 7Sun S G. Studying electrocatalytic oxidation of small organic molecules with in-situ infrared spectroscopy//[C]. Lipkowski J, Ross P N (Eds.), Electrocatalysis, New York: Wiley-VCH, 1998: 243-291.
  • 8Hamnett A. Accomplishments and challenges[M]. New York: Marcel Dekker Inc., 1999: 843-883.
  • 9Herrero E, Feliu J. Electrocatalysis: interfacial kinetics and mass transport//[C]. Bard A J, Stratmann M (Eds.), Encyclopedia of Electrochemistry, Weinheim. Germany: Wiley-VCH, 2003: 443-465.
  • 10Waszczuk P, Crown A, Mitrovski S, et al. Electrocatalysis//[C]. Vielstich W, Lamm A, Gasteiger H A. (Eds.), Handbook of fuel cells: Fundamentals, technology, applications, Chichester, UK, John Wiley & Sons, 2003: 635-651.

引证文献1

二级引证文献3

Chinese Journal of Chemical Physics
2013年 第4期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部