Ultrafine FePd Nanoalloys Decorated Multiwalled Cabon Nanotubes toward Enhanced Ethanol Oxidation Reaction

ACS Applied Materials and Interfaces

Volumn 7, Issue 43, 2015, Pages 23920-23931

  Wang, Yiran ^a   He, Qingliang ^a   Guo, Jiang ^a   Wang, Jinmin ^b   Luo, Zhiping ^d   Shen, Tong D ^e   Ding, Keqiang ^f   Khasanov, Airat ^g   Wei, Suying ^c   Guo, Zhanhu ^a  

^a University of Tennessee   (United States)

^b SHANGHAI SECOND POLYTECHNIC UNIVERSITY   (China)

^c LAMAR UNIVERSITY   (United States)

^d FAYETTEVILLE STATE UNIVERSITY   (United States)

^e YANSHAN UNIVERSITY   (China)

^f HEBEI NORMAL UNIVERSITY   (China)

^g UNIVERSITY OF NORTH CAROLINA AT ASHEVILLE   (United States)

Author keywords

carbon nanotubes; ethanol oxidation reaction; gamma phased iron oxide; iron palladium alloy; palladium based catalysts

Indexed keywords

CARBON; CARBON NANOTUBES; CHARGE TRANSFER; CHRONOAMPEROMETRY; CYCLIC VOLTAMMETRY; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; ETHANOL; IRON; IRON ALLOYS; NANOTUBES; OXIDATION; PALLADIUM ALLOYS; YARN;

CARBOXYL MULTI-WALLED CARBON NANOTUBES; CHARGE TRANSFER RESISTANCE; ETHANOL OXIDATION REACTION; IRON-PALLADIUM ALLOYS; OXYGEN-CONTAINING SPECIES; PALLADIUM ACETYLACETONATE; PALLADIUM BASED CATALYSTS; PEAK CURRENT DENSITY;

MULTIWALLED CARBON NANOTUBES (MWCN);

EID: 84946426706     PISSN: 19448244     EISSN: 19448252     Source Type: Journal    
DOI: 10.1021/acsami.5b06194     Document Type: Article

References (70)

1. Liu, J.; Peng, X.; Sun, W.; Zhao, Y.; Xia, C. Magnetically Separable Pd Catalyst for Carbonylative Sonogashira Coupling Reactions for the Synthesis of α,β-Alkynyl Ketones Org. Lett. 2008, 10 (18) 3933-3936 10.1021/ol801478y
2. Urbano, F. J.; Marinas, J. M. Hydrogenolysis of Organohalogen Compounds over Palladium Supported Catalysts J. Mol. Catal. A: Chem. 2001, 173 (1-2) 329-345 10.1016/S1381-1169(01)00157-1
3. Guin, D.; Baruwati, B.; Manorama, S. V. Pd on Amine-Terminated Ferrite Nanoparticles: A Complete Magnetically Recoverable Facile Catalyst for Hydrogenation Reactions† Org. Lett. 2007, 9 (7) 1419-1421 10.1021/ol070290p
4. Pan, X.; Fan, Z.; Chen, W.; Ding, Y.; Luo, H.; Bao, X. Enhanced Ethanol Production inside Carbon-Nanotube Reactors Containing Catalytic Particles Nat. Mater. 2007, 6 (7) 507-511 10.1038/nmat1916
5. Postole, G.; Bonnetot, B.; Gervasini, A.; Guimon, C.; Auroux, A.; Ionescu, N. I.; Caldararu, M. Characterisation of BN-Supported Palladium Oxide Catalyst Used for Hydrocarbon Oxidation Appl. Catal., A 2007, 316 (2) 250-258 10.1016/j.apcata.2006.09.026
6. Skotak, M.; Karpiński, Z.; Juszczyk, W.; Pielaszek, J.; Kepiński, L.; Kazachkin, D. V.; Kovalchuk, V. I.; d'Itri, J. L. Characterization and Catalytic Activity of Differently Pretreated Pd/Al2O3 Catalysts: the Role of Acid Sites and of Palladium-Alumina Interactions J. Catal. 2004, 227 (1) 11-25 10.1016/j.jcat.2004.06.007
7. Haneda, M.; Kintaichi, Y.; Nakamura, I.; Fujitani, T.; Hamada, H. Effect of Surface Structure of Supported Palladium Catalysts on the Activity for Direct Decomposition of Nitrogen Monoxide J. Catal. 2003, 218 (2) 405-410 10.1016/S0021-9517(03)00158-1
8. Li, Y. S.; Zhao, T. S.; Liang, Z. X. Performance of Alkaline Electrolyte-Membrane-Based Direct Ethanol Fuel Cells J. Power Sources 2009, 187 (2) 387-392 10.1016/j.jpowsour.2008.10.132
9. Vigier, F.; Coutanceau, C.; Perrard, A.; Belgsir, E. M.; Lamy, C. Development of Anode Catalysts for a Direct Ethanol Fuel Cell J. Appl. Electrochem. 2004, 34 (4) 439-446 10.1023/B:JACH.0000016629.98535.ad
10. Xu, C. W.; Wang, H.; Shen, P. K.; Jiang, S. P. Highly Ordered Pd Nanowire Arrays as Effective Electrocatalysts for Ethanol Oxidation in Direct Alcohol Fuel Cells Adv. Mater. 2007, 19 (23) 4256-4259 10.1002/adma.200602911
11. Meng, H.; Sun, S.; Masse, J.-P.; Dodelet, J.-P. Electrosynthesis of Pd Single-Crystal Nanothorns and Their Application in the Oxidation of Formic Acid Chem. Mater. 2008, 20 (22) 6998-7002 10.1021/cm8014513
12. Hu, F.; Cui, X.; Chen, W. Ultralong-CNTA-Supported Pd-Based Anodes for Ethanol Oxidation J. Phys. Chem. C 2010, 114 (47) 20284-20289 10.1021/jp109480p
13. Xu, C.; Cheng, L.; Shen, P.; Liu, Y. Methanol and Ethanol Electrooxidation on Pt and Pd Supported on Carbon Microspheres in Alkaline Media Electrochem. Commun. 2007, 9 (5) 997-1001 10.1016/j.elecom.2006.12.003
14. Zhu, C.; Guo, S.; Dong, S. PdM (M = Pt, Au) Bimetallic Alloy Nanowires with Enhanced Electrocatalytic Activity for Electro-oxidation of Small Molecules Adv. Mater. 2012, 24 (17) 2326-2331 10.1002/adma.201104951
15. Wang, Y.; He, Q.; Guo, J.; Wei, H.; Ding, K.; Lin, H.; Bhana, S.; Huang, X.; Luo, Z.; Shen, T. D.; Wei, S.; Guo, Z. Carboxyl Multiwalled Carbon-Nanotube-Stabilized Palladium Nanocatalysts toward Improved Methanol Oxidation Reaction ChemElectroChem 2015, 2 (4) 559-570 10.1002/celc.201402378
16. Chen, X.; Wu, G.; Chen, J.; Chen, X.; Xie, Z.; Wang, X. Synthesis of "clean" and Well-Dispersive Pd Nanoparticles with Excellent Electrocatalytic Property on Graphene Oxide J. Am. Chem. Soc. 2011, 133 (11) 3693-3695 10.1021/ja110313d
17. Son, S. U.; Jang, Y.; Yoon, K. Y.; Kang, E.; Hyeon, T. Facile Synthesis of Various Phosphine-Stabilized Monodisperse Palladium Nanoparticles through the Understanding of Coordination Chemistry of the Nanoparticles Nano Lett. 2004, 4 (6) 1147-1151 10.1021/nl049519+
18. Mazumder, V.; Sun, S. Oleylamine-Mediated Synthesis of Pd Nanoparticles for Catalytic Formic Acid Oxidation J. Am. Chem. Soc. 2009, 131 (13) 4588-4589 10.1021/ja9004915
19. Jana, N. R.; Wang, Z. L.; Pal, T. Redox Catalytic Properties of Palladium Nanoparticles: Surfactant and Electron Donor-Acceptor Effects Langmuir 2000, 16 (6) 2457-2463 10.1021/la990507r
20. Fernández, J. L.; Walsh, D. A.; Bard, A. J. Thermodynamic Guidelines for the Design of Bimetallic Catalysts for Oxygen Electroreduction and Rapid Screening by Scanning Electrochemical Microscopy. M-Co (M: Pd, Ag, Au) J. Am. Chem. Soc. 2005, 127 (1) 357-365 10.1021/ja0449729
21. Zhang, Z.; Ge, J.; Ma, L.; Liao, J.; Lu, T.; Xing, W. Highly Active Carbon-Supported PdSn Catalysts for Formic Acid Electrooxidation Fuel Cells 2009, 9 (2) 114-120 10.1002/fuce.200800074
22. Wang, W.; Zheng, D.; Du, C.; Zou, Z.; Zhang, X.; Xia, B.; Yang, H.; Akins, D. L. Carbon-Supported Pd-Co Bimetallic Nanoparticles as Electrocatalysts for the Oxygen Reduction Reaction J. Power Sources 2007, 167 (2) 243-249 10.1016/j.jpowsour.2007.02.013
23. Chen, L.; Guo, H.; Fujita, T.; Hirata, A.; Zhang, W.; Inoue, A.; Chen, M. Nanoporous PdNi Bimetallic Catalyst with Enhanced Electrocatalytic Performances for Electro-oxidation and Oxygen Reduction Reactions Adv. Funct. Mater. 2011, 21 (22) 4364-4370 10.1002/adfm.201101227
24. Cheng, F.; Dai, X.; Wang, H.; Jiang, S. P.; Zhang, M.; Xu, C. Synergistic Effect of Pd-Au Bimetallic Surfaces in Au-Covered Pd Nanowires Studied for Ethanol Oxidation Electrochim. Acta 2010, 55 (7) 2295-2298 10.1016/j.electacta.2009.11.076
25. Yang, J.; Zhou, W.; Cheng, C. H.; Lee, J. Y.; Liu, Z. Pt-Decorated PdFe Nanoparticles as Methanol-Tolerant Oxygen Reduction Electrocatalyst ACS Appl. Mater. Interfaces 2010, 2 (1) 119-126 10.1021/am900623e
26. Li, W.; Haldar, P. Supportless PdFe Nanorods as Highly Active Electrocatalyst for Proton Exchange Membrane Fuel Cell Electrochem. Commun. 2009, 11 (6) 1195-1198 10.1016/j.elecom.2009.03.046
27. Wang, W.; Wang, R.; Ji, S.; Feng, H.; Wang, H.; Lei, Z. Pt Overgrowth on Carbon Supported PdFe Seeds in the Preparation of Core-Shell Electrocatalysts for the Oxygen Reduction Reaction J. Power Sources 2010, 195 (11) 3498-3503 10.1016/j.jpowsour.2009.12.015
28. Zhang, Z.; More, K. L.; Sun, K.; Wu, Z.; Li, W. Preparation and Characterization of PdFe Nanoleaves as Electrocatalysts for Oxygen Reduction Reaction Chem. Mater. 2011, 23 (6) 1570-1577 10.1021/cm1034134
29. Guo, S.; Zhang, S.; Sun, X.; Sun, S. Synthesis of Ultrathin FePtPd Nanowires and Their Use as Catalysts for Methanol Oxidation Reaction J. Am. Chem. Soc. 2011, 133 (39) 15354-15357 10.1021/ja207308b
30. Kolmakov, A.; Klenov, D. O.; Lilach, Y.; Stemmer, S.; Moskovits, M. Enhanced Gas Sensing by Individual SnO2 Nanowires and Nanobelts Functionalized with Pd Catalyst Particles Nano Lett. 2005, 5 (4) 667-673 10.1021/nl050082v
31. Ye, M.; Gong, J.; Lai, Y.; Lin, C.; Lin, Z. High-Efficiency Photoelectrocatalytic Hydrogen Generation Enabled by Palladium Quantum Dots-Sensitized TiO2 Nanotube Arrays J. Am. Chem. Soc. 2012, 134 (38) 15720-15723 10.1021/ja307449z
32. Tan, H. T.; Chen, Y.; Zhou, C.; Jia, X.; Zhu, J.; Chen, J.; Rui, X.; Yan, Q.; Yang, Y. Palladium Nanoparticles Supported on Manganese Oxide-CNT Composites for Solvent-Free Aerobic Oxidation of Alcohols: Tuning the Properties of Pd Active Sites Using MnOx Appl. Catal., B 2012, 119-120 (0) 166-174 10.1016/j.apcatb.2012.02.024
33. Jiao, Y.; Jiang, H.; Chen, F. RuO2/TiO2/Pt Ternary Photocatalysts with Epitaxial Heterojunction and Their Application in CO Oxidation ACS Catal. 2014, 4 (7) 2249-2257 10.1021/cs5001174
34. Chen, S.; Si, R.; Taylor, E.; Janzen, J.; Chen, J. Synthesis of Pd/Fe3O4 Hybrid Nanocatalysts with Controllable Interface and Enhanced Catalytic Activities for CO Oxidation J. Phys. Chem. C 2012, 116 (23) 12969-12976 10.1021/jp3036204
35. Xu, C.; Tian, Z.; Shen, P.; Jiang, S. P. Oxide (CeO2, NiO, Co3O4 and Mn3O4)-Promoted Pd/C Electrocatalysts for Alcohol Electrooxidation in Alkaline Media Electrochim. Acta 2008, 53 (5) 2610-2618 10.1016/j.electacta.2007.10.036
36. Itoh, H.; Sugimoto, T. Systematic Control of Size, Shape, Structure, and Magnetic Properties of Uniform Magnetite and Maghemite Particles J. Colloid Interface Sci. 2003, 265 (2) 283-295 10.1016/S0021-9797(03)00511-3
37. Cheng, J. P.; Yu, J.; Shi, D.; Wang, D. S.; Liu, Y. F.; Liu, F.; Zhang, X. B.; Li, J. G. Controllable One-Step Synthesis of Magnetite/Carbon Nanotubes Composite and Its Electrochemical Properties Appl. Phys. A: Mater. Sci. Process. 2012, 106 (4) 837-842 10.1007/s00339-012-6786-9
38. He, Q.; Yuan, T.; Wei, S.; Haldolaarachchige, N.; Luo, Z.; Young, D. P.; Khasanov, A.; Guo, Z. Morphology- and Phase-Controlled Iron Oxide Nanoparticles Stabilized with Maleic Anhydride Grafted Polypropylene Angew. Chem. 2012, 124 (35) 8972-8975 10.1002/ange.201203347
39. Astinchap, B.; Moradian, R.; Ardu, A.; Cannas, C.; Varvaro, G.; Capobianchi, A. Bifunctional FePt@MWCNTs/Ru Nanoarchitectures: Synthesis and Characterization Chem. Mater. 2012, 24 (17) 3393-3400 10.1021/cm3015447
40. He, Q.; Yuan, T.; Zhang, X.; Yan, X.; Guo, J.; Ding, D.; Khan, M. A.; Young, D. P.; Khasanov, A.; Luo, Z.; Liu, J.; Shen, T. D.; Liu, X.; Wei, S.; Guo, Z. Electromagnetic Field Absorbing Polypropylene Nanocomposites with Tuned Permittivity and Permeability by Nanoiron and Carbon Nanotubes J. Phys. Chem. C 2014, 118 (42) 24784-24796 10.1021/jp507975r
41. Wu, C. T.; Yu, K. M. K.; Liao, F.; Young, N.; Nellist, P.; Dent, A.; Kroner, A.; Tsang, S. C. E. A Non-Syn-Gas Catalytic Route to Methanol Production Nat. Commun. 2012, 3, 1050 10.1038/ncomms2053
42. Singh, R. N.; Awasthi, R. Graphene Support for Enhanced Electrocatalytic Activity of Pd for Alcohol Oxidation Catal. Sci. Technol. 2011, 1 (5) 778-783 10.1039/c1cy00021g
43. Yang, J.; Tian, C.; Wang, L.; Fu, H. An Effective Strategy for Small-Sized and Highly-Dispersed Palladium Nanoparticles Supported on Graphene with Excellent Performance for Formic Acid Oxidation J. Mater. Chem. 2011, 21 (10) 3384-3390 10.1039/c0jm03361h
44. Guo, Q.; Liu, D.; Huang, J.; Hou, H.; You, T. A Composite Made from Palladium Nanoparticles and Carbon Nanofibers for Superior Electrocatalytic Oxidation of Formic Acid Microchim. Acta 2014, 181 (7) 797-803 10.1007/s00604-014-1159-z
45. Schlotterbeck, U.; Aymonier, C.; Thomann, R.; Hofmeister, H.; Tromp, M.; Richtering, W.; Mecking, S. Shape-Selective Synthesis of Palladium Nanoparticles Stabilized by Highly Branched Amphiphilic Polymers Adv. Funct. Mater. 2004, 14 (10) 999-1004 10.1002/adfm.200400053
46. Guo, X.; Brault, P.; Zhi, G.; Caillard, A.; Jin, G.; Guo, X. Structural Evolution of Plasma-Sputtered Core-Shell Nanoparticles for Catalytic Combustion of Methane J. Phys. Chem. C 2011, 115 (49) 24164-24171 10.1021/jp206606r
47. Sato, K.; Kovács, A.; Hirotsu, Y. Order-Disorder Transformation in Fe-Pd Alloy Nanoparticles Studied by In Situ Transmission Electron Microscopy Thin Solid Films 2011, 519 (10) 3305-3311 10.1016/j.tsf.2010.12.246
48. Castellanos-Rubio, I.; Insausti, M.; de Muro, I. G.; Arias-Duque, D. C.; Hernández-Garrido, J.; Rojo, T.; Lezama, L. The Impact of the Chemical Synthesis on the Magnetic Properties of Intermetallic PdFe Nanoparticles J. Nanopart. Res. 2015, 17 (5) 229 10.1007/s11051-015-3042-1
49. Zhang, X.; Zhang, P.; Yu, H.; Ma, Z.; Zhou, S. Mesoporous KIT-6 Supported Pd-M x O y (M = Ni, Co, Fe) Catalysts with Enhanced Selectivity for p-Chloronitrobenzene Hydrogenation Catal. Lett. 2015, 145 (3) 784-793 10.1007/s10562-015-1480-0
50. Zhu, J.; Wei, S.; Gu, H.; Rapole, S. B.; Wang, Q.; Luo, Z.; Haldolaarachchige, N.; Young, D. P.; Guo, Z. One-Pot Synthesis of Magnetic Graphene Nanocomposites Decorated with Core@Double-shell Nanoparticles for Fast Chromium Removal Environ. Sci. Technol. 2012, 46 (2) 977-985 10.1021/es2014133
51. Kim, J. Y.; Park, K.; Bae, S. Y.; Kim, G. C.; Lee, S.; Choi, H. C. Preparation, Characterization and Catalytic Properties of Pd-Decorated Carbon Nanotubes Possessing Different Linkers J. Mater. Chem. 2011, 21 (16) 5999-6005 10.1039/c0jm03467c
52. Bhuvaneswari, S.; Pratheeksha, P. M.; Anandan, S.; Rangappa, D.; Gopalan, R.; Rao, T. N. Efficient Reduced Graphene Oxide Grafted Porous Fe3O4 Composite as a High Performance Anode Material for Li-ion Batteries Phys. Chem. Chem. Phys. 2014, 16 (11) 5284-5294 10.1039/c3cp54778g
53. Han, Q.; Liu; Xu; Chen; Wang; Zhang, H. Growth and Properties of Single-Crystalline γ-Fe2O3 Nanowires J. Phys. Chem. C 2007, 111 (13) 5034-5038 10.1021/jp067837m
54. Lu, J.; Jiao, X.; Chen, D.; Li, W. Solvothermal Synthesis and Characterization of Fe3O4 and γ-Fe2O3 Nanoplates J. Phys. Chem. C 2009, 113 (10) 4012-4017 10.1021/jp810583e
55. Kim, I. T.; Nunnery, G. A.; Jacob, K.; Schwartz, J.; Liu, X.; Tannenbaum, R. Synthesis, Characterization, and Alignment of Magnetic Carbon Nanotubes Tethered with Maghemite Nanoparticles J. Phys. Chem. C 2010, 114 (15) 6944-6951 10.1021/jp9118925
56. Pillo, T.; Zimmermann, R.; Steiner, P.; Hüfner, S. The Electronic Structure of PdO Found by Photoemission (UPS and XPS) and Inverse Photoemission (BIS) J. Phys.: Condens. Matter 1997, 9 (19) 3987 10.1088/0953-8984/9/19/018
57. Noack, K.; Zbinden, H.; Schlögl, R. Identification of the State of Palladium in Various Hydrogenation Catalysts by XPS Catal. Lett. 1990, 4 (2) 145-155 10.1007/BF00765697
58. Zhang, S. L.; Zhang, J. R. Photoemission and Mössbauer Effect Studies of Sputter-Deposited Fe-Pd Alloys Phys. Status Solidi B 1994, 182 (2) 421-427 10.1002/pssb.2221820219
59. Felicissimo, M. P.; Martyanov, O. N.; Risse, T.; Freund, H. J. Characterization of a Pd-Fe Bimetallic Model Catalyst Surf. Sci. 2007, 601 (10) 2105-2116 10.1016/j.susc.2007.02.023
60. Du, C.; Chen, M.; Wang, W.; Yin, G. Nanoporous PdNi Alloy Nanowires As Highly Active Catalysts for the Electro-Oxidation of Formic Acid ACS Appl. Mater. Interfaces 2011, 3 (2) 105-109 10.1021/am100803d
61. Huang, H.; Wang, X. Pd Nanoparticles Supported on Low-Defect Graphene Sheets: for Use as High-Performance Electrocatalysts for Formic Acid and Methanol Oxidation J. Mater. Chem. 2012, 22 (42) 22533-22541 10.1039/c2jm33727d
62. Wang, Y.; He, Q.; Ding, K.; Wei, H.; Guo, J.; Wang, Q.; O'Connor, R.; Huang, X.; Luo, Z.; Shen, T. D.; Wei, S.; Guo, Z. Multiwalled Carbon Nanotubes Composited with Palladium Nanocatalysts for Highly Efficient Ethanol Oxidation J. Electrochem. Soc. 2015, 162 (7) F755-F763 10.1149/2.0751507jes
63. Wang, J.; Zhou, H.; Fan, D.; Zhao, D.; Xu, C. A Glassy Carbon Electrode Modified with Nanoporous PdFe Alloy for Highly Sensitive Continuous Determination of Nitrite Microchim. Acta 2015, 182 (5-6) 1055-1061 10.1007/s00604-014-1432-1
64. Wang, J. J.; Yin, G. P.; Zhang, J.; Wang, Z. B.; Gao, Y. Z. High Utilization Platinum Deposition on Single-Walled Carbon Nanotubes as Catalysts for Direct Methanol Fuel Cell Electrochim. Acta 2007, 52 (24) 7042-7050 10.1016/j.electacta.2007.05.038
65. Wang, P.; Lai, B.; Li, H.; Du, Z. Deposition of Fe on Graphite Felt by Thermal Decomposition of Fe(CO)5 for Effective Cathodic Preparation of Microbial Fuel Cells Bioresour. Technol. 2013, 134 (0) 30-35 10.1016/j.biortech.2013.01.153
66. Wang, J.; Winans, R. E.; Anderson, S. L.; Seifert, S.; Lee, B.; Chupas, P. J.; Ren, Y.; Lee, S.; Liu, Y. In Situ Small-Angle X-ray Scattering from Pd Nanoparticles Formed by Thermal Decomposition of Organo-Pd Catalyst Precursors Dissolved in Hydrocarbons J. Phys. Chem. C 2013, 117 (44) 22627-22635 10.1021/jp402513z
67. Liao, F.; Lo, T. W. B.; Sexton, D.; Qu, J.; Wu, C.-T.; Tsang, S. C. E. PdFe Nanoparticles as Selective Catalysts for C-C Cleavage in Hydrogenolysis of Vicinal Diol Units in Biomass-Derived Chemicals Catal. Sci. Technol. 2015, 5 (2) 887-896 10.1039/C4CY01159G
68. Matanović, I.; Garzon, F. H.; Henson, N. J. Theoretical Study of Electrochemical Processes on Pt-Ni Alloys J. Phys. Chem. C 2011, 115 (21) 10640-10650 10.1021/jp111930w
69. Xu, C.; Shen, P. k.; Liu, Y. Ethanol Electrooxidation on Pt/C and Pd/C Catalysts Promoted with Oxide J. Power Sources 2007, 164 (2) 527-531 10.1016/j.jpowsour.2006.10.071
70. Wen, Z.; Yang, S.; Liang, Y.; He, W.; Tong, H.; Hao, L.; Zhang, X.; Song, Q. The Improved Electrocatalytic Activity of Palladium/Graphene Nanosheets towards Ethanol Oxidation by Tin Oxide Electrochim. Acta 2010, 56 (1) 139-144 10.1016/j.electacta.2010.09.032