Adsorption and oxidation of ethanol on colloid-based Pt/C, PtRu/C and Pt3Sn/C catalysts: In situ FTIR spectroscopy and on-line DEMS studies
文献类型：期刊论文
| 作者 | Wang, Q.; Sun, G. Q.; Jiang, L. H.; Xin, Q.; Sun, S. G.; Jiang, Y. X.; Chen, S. P.; Jusys, Z.; Behm, R. J. |
| 刊名 | physical chemistry chemical physics
 |
| 出版日期 | 2007-06-07 |
| 卷号 | 9期号:21页码:2686-2696 |
| 英文摘要 | the interaction of colloid-based, carbon supported pt/c (40 wt%), ptru/c (45 wt%) and pt3sn/ c (24 wt%) catalysts with ethanol and their performance for ethanol electrooxidation were investigated in model studies by electrochemical, in situ infrared spectroscopy and on-line differential electrochemical mass spectrometry measurements. the combined application of in situ spectroscopic techniques on realistic catalysts and under realistic reaction (dems, ir) and transport conditions (dems) yields new insight on mechanistic details of the reaction on these catalysts under the above reaction and transport conditions. based on these results, the addition of sri or ru, though beneficial for the overall activity for ethanol oxidation, does not enhance the activity for c-c bond breaking. dissociative adsorption of ethanol to form co2 is more facile on the pt/c catalyst than on ptru/c and pt3sn/c catalysts within the potential range of technical interests (< 0.6 v), but pt/c is rapidly blocked by an inhibiting co adlayer. in all cases acetaldehyde and acetic acid are dominant products, co2 formation contributes less than 2% to the total current. the higher ethanol oxidation current density on the pt3sn/c catalyst at these potentials results from higher yields of c2 products, not from an improved complete ethanol oxidation to co2. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical ; physics, atomic, molecular & chemical |
| 研究领域[WOS] | chemistry ; physics |
| 关键词[WOS] | sulfuric-acid-solutions ; scale thin-films ; fuel-cell catalysts ; co adsorption ; electrocatalytic oxidation ; methanol electrooxidation ; reflectance spectroscopy ; platinum-electrodes ; carbon nanotubes ; anode catalysts |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247314000015 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140481]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Univ Ulm, Inst Surface Chem & Catalysis, D-89069 Ulm, Germany 4.Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Q.,Sun, G. Q.,Jiang, L. H.,et al. Adsorption and oxidation of ethanol on colloid-based Pt/C, PtRu/C and Pt3Sn/C catalysts: In situ FTIR spectroscopy and on-line DEMS studies[J]. physical chemistry chemical physics,2007,9(21):2686-2696. |
| APA | Wang, Q..,Sun, G. Q..,Jiang, L. H..,Xin, Q..,Sun, S. G..,...&Behm, R. J..(2007).Adsorption and oxidation of ethanol on colloid-based Pt/C, PtRu/C and Pt3Sn/C catalysts: In situ FTIR spectroscopy and on-line DEMS studies.physical chemistry chemical physics,9(21),2686-2696. |
| MLA | Wang, Q.,et al."Adsorption and oxidation of ethanol on colloid-based Pt/C, PtRu/C and Pt3Sn/C catalysts: In situ FTIR spectroscopy and on-line DEMS studies".physical chemistry chemical physics 9.21(2007):2686-2696. |
入库方式： OAI收割
来源：大连化学物理研究所
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