全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电化学  2014 

脉冲电沉积Pd-Ni合金纳米颗粒及其甲酸电催化氧化

DOI: 10.13208/j.electrochem.121205, PP. 5-11

Keywords: 钯镍合金,纳米颗粒,甲酸,氧化,电催化

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用方波脉冲方法,在钯镍合金电解液中成功地电化学沉积出镍原子含量分别为12.0%、16.4%和22.6%的钯镍合金纳米颗粒.钯镍合金纳米颗粒为球状,粒径50~80nm.随钯镍合金生长电位负移,合金的镍含量提高,其纳米颗粒大小基本相似但纳米颗粒数目增多,交联度提高和真实活性面积增大.钯镍合金纳米颗粒镍含量提高,在硫酸溶液中其氢弱吸附峰电流增大.钯镍合金纳米颗粒电极的甲酸电催化氧化活性较好,随合金纳米颗粒的镍含量提高和交联度增加,合金纳米颗粒电极的甲酸电催化氧化稳定性更高.

References

[1]  Capon A, Parsons R. The oxidation of formic acid at noble metal electrodes: Part III. Intermediates and mechanism on platinum electrodes[J]. Journal of Electroanalytical Chemistry, 1973, 45: 205-231.
[2]  Chen W, Kim J, Sun S, et al. Composition effects of FePt alloy nanoparticles on the electro-oxidation of formic acid[J]. Langmuir, 2007, 23(22): 11303-11310.
[3]  Tripkovic A V, Popovic K D, Stevanovic R M, et al. Activity of a PtBi alloy in the electrochemical oxidation of formic acid[J]. Electrochemistry Communications, 2006, 8(9): 1492-1498.
[4]  Huang J, Hou H, You T. Highly efficient electrocatalytic oxidation of formic acid by electrospun carbon nanofiber-supported PtxAu100-x bimetallic electrocatalyst[J]. Electrochemistry Communications, 2009, 11(6): 1281-1284.
[5]  Liu W, Huang J. Electro-oxidation of formic acid on carbon supported Pt-Os catalyst[J]. Journal of Power Sources, 2009, 189(2): 1012-1015.
[6]  Huang Y, Zhou X, Liao J, et al. Synthesis of Pd/C catalysts with designed lattice constants for the electro-oxidation of formic acid[J]. Electrochemistry Communications, 2008, 10(8): 1155-1157.
[7]  Zhu Y, Kang Y, Zou Z, et al. A facile preparation of carbon-supported Pd nanoparticles for electrocatalytic oxidation of formic acid[J]. Electrochemistry Communications, 2008, 10(5): 802-805.
[8]  Wang R, Liao S, Ji S. High performance Pd-based catalysts for oxidation of formic acid[J]. Journal of Power Sources, 2008, 180(1): 205-208.
[9]  Yang G X (杨改秀),Chen T T (陈婷婷),Tang Y W (唐亚文),et al. Electrocatalytic performance of silicotungstic acid modified carbon supported Pd catalyst for oxidation of fomic acid[J]. Acta Physico-Chimica Sinica (物理化学学报),2009, 25(12): 2450-2454.
[10]  Arenz M, Stamenkovic V, Schmidt T J, et al. The electro-oxidation of formic acid on Pt-Pd single crystal bimetallic surfaces[J]. Physical Chemistry Chemical Physics, 2003, 5(19): 4242-4251.
[11]  Zhang H X, Wang C, Wang J Y, et al. Carbon-supported Pd-Pt nanoalloy with low Pt content and superior catalysis for formic acid electro-oxidation[J]. Journal of Physical Chemistry C, 2010, 114(14): 6446-6451.
[12]  Yang L J (杨莉君), Su H N (苏华能), Shu T (舒婷), et al. Enhanced electro-oxidation of formic acid by PdPt bimetallic catalyst with CeO2-modified carbon support[J]. Scientia Sinica Chimica (中国科学:化学), 2011, 41(12): 1817-1825.
[13]  Zhang S, Qing M, Zhang H, et al. Electrocatalytic oxidation of formic acid on functional MWCNTs supported nanostructured Pd-Au catalyst[J]. Electrochemistry Communications, 2009, 11(11): 2249-2252.
[14]  Du C, Chen M, Wang W, et al. Electrodeposited PdNi2 alloy with novelly enhanced catalytic activity for electrooxidation of formic acid[J]. Electrochemistry Communications, 2010, 12(6): 843-846.
[15]  Lim B, Jiang M, Tao J, et al. Shape-controlled synthesis of Pd nanocrystals in aqueous solutions[J]. Advanced Functional Materials, 2009, 19(2): 189-200.
[16]  Chen J, Lim B, Lee E, et al. Shape-controlled synthesis of platinum nanocrystals for catalytic and electrocatalytic applications[J]. Nano Today, 2009, 4(1): 81-95.
[17]  Tian N, Zhou Z Y, Sun S G, et al. Synthesis of tetrahexahedral platinum nanocrystals with high-index facets and high electro-oxidation activity[J]. Science, 2007, 316(5825): 732-735.
[18]  Yue J P (岳俊培), Yang F Z (杨防祖), Tian Z Q (田中群), et al. Electrocrystallization of Pd-Ni alloys on glassy carbon electrode[J]. Acta Physico-Chimica Sinica (物理化学学报), 2011, 27(6): 1446-1450.
[19]  Tian N, Zhou Z Y, Yu N F, et al. Direct electrodeposition of tetrahexahedral Pd nanocrystals with high-index facets and high catalytic activity for ethanol electrooxidation[J]. Journal of the American Chemical Society, 2010, 132(22): 7580-7581.
[20]  Li H Z (李焕芝), Shen J Z (沈娟章), Yang G X (杨改秀), et al. Anodic Pd catalyst in direct formic acid fuel cell and its electrocatalytic stability[J]. Chemical Journal of Chinese Universities (高等学校化学学报), 2011, 32(7): 1445-1450.
[21]  Yue J P, Yang F Z, Tian Z Q, et al. Effects of nickel ion contents on electrodeposition, composition, structure and properties of palladium-nickel alloys[J]. Transactions of the Institute of Metal Finishing, 2011, 89 (5): 249-254.
[22]  Meng H, Sun S, Masse J P, et al. Electrosynthesis of Pd single-crystal nanothorns and their application in the oxidation of formic acid[J]. Chemistry of Materials, 2008, 20(22): 6998-7002.
[23]  Liu H, Song C, Zhang L, et al. A review of anode catalysis in the direct methanol fuel cell[J]. Journal of Power Sources, 2006, 155(2), 95-110.
[24]  Rhee Y. Crossover of formic acid through Nafion? membranes[J]. Journal of Power Sources, 2003, 117(1/2): 35-38.
[25]  Demirci U. Direct liquid-feed fuel cells: Thermodynamic and environmental concerns[J]. Journal of Power Sources, 2007, 169(2): 239-246.
[26]  Rice C, Ha R I, Masel R I, et al. Direct formic acid fuel cells[J]. Journal of Power Sources, 2002, 111(1): 83-89.
[27]  Rice C. Catalysts for direct formic acid fuel cells[J]. Journal of Power Sources, 2003, 115(2): 229-235.
[28]  Zhu Y M, Ha S Y, Masel R I. High power density direct formic acid fuel cells[J]. Journal of Power Sources, 2004, 130(1/2): 8-14.
[29]  Capon A, Parson R. The oxidation of formic acid at noble metal electrodes: I. Review of previous work[J]. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1973, 44: 1-7.
[30]  Hong Y J (洪玉洁), Shen J Z (沈娟章), Li H Z (李焕芝), et al. Effect of electrolyte on electrocatalytic performance of carbon supported Pd catalyst for formic acid oxidation[J]. Chinese Journal of Inorganic Chemistry (无机化学学报), 2011, 27(7): 1383-1387.
[31]  Xi C M (奚彩明), Shi Y (施毅), Zhao J Y (赵佳越), et al. Electrocatalytic oxidation of formic acid on the carbon supported Pd-Ni alloy nanoparticles[J]. Chemical Journal of Chinese Universities (高等学校化学学报), 2011, 32(6): 1349-1353.
[32]  Demirci U B. Theoretical means for searching bimetallic alloys as anode electrocatalysts for direct liquid-feed fuel cells[J]. Journal of Power Sources, 2007, 173(1): 11-18.
[33]  Hammer B, N?rskov J K. Theoretical surface science and catalysis—calculations and concepts[J]. Advances in Catalysis, 2000, 45, 71-129.
[34]  Tominaka S, Momma T, Osaka T. Electrodeposited Pd-Co catalyst for direct methanol fuel cell electrodes: Preparation and characterization[J]. Electrochimica Acta, 2008, 53(14): 4679-4686.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133