Preparation of Pt/H-TiO₂ Catalyst with Improved Catalytic Performance for Methanol Electrooxidation

Authors

Jin HAN, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
Zhi-you ZHOU, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;Follow
Qiang WANG, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
Miao-qiang LV, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
Chi CHEN, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
Shi-gang SUN, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;

Corresponding Author

Zhi-you ZHOU(zhouzy@xmu.edu.cn)

Abstract

White TiO₂ nanorods were synthesized by hydrothermal method with TiCl4 as a precursor. As-synthesized TiO₂ nanorods were further subjected to high-temperature (550 ^oC) heat treatment for 2 h under H2 atmosphere to prepare gray black hydrogen-treated TiO₂ (H-TiO₂) nanorods with oxygen vacancies and Ti³⁺ interstitial atoms. The Pt nanoparticles of 1.9 nm were supported on these two types of TiO₂ nanorods to form Pt/TiO2 and Pt/H-TiO₂ catalysts. XRD data indicates that the crystal structure of TiO₂ was still reserved as rutile after hydrogen treatment, but the surface was covered by some Ti-OH species, as evidenced by XPS test. Electrochemical tests demonstrate that the oxygen vacancies of H-TiO₂ can enhance the adsorption/desorption of oxygen on Pt nanoparticles, which promotes the electrocatalytic activity of H-TiO₂ towards methanol oxidation. As a result, the peak current density of methanol oxidation on Pt/H-TiO₂ was 1.6 and 2.1 times those of methanol oxidation on Pt/TiO₂ and Pt/C, respectively.

Graphical Abstract

Keywords

platinum nanoparticles, TiO2 nanorods, hydrogen treatment, methanol electrooxidation, oxygen vacancy, Ti3+ interstitial atom

DOI Link

https://doi.org/10.13208/j.electrochem.130418

Publication Date

2014-04-28

Online Available Date

2014-04-17

Revised Date

2013-05-16

Received Date

2013-04-17

Recommended Citation

Jin HAN, Zhi-you ZHOU, Qiang WANG, Miao-qiang LV, Chi CHEN, Shi-gang SUN. Preparation of Pt/H-TiO₂ Catalyst with Improved Catalytic Performance for Methanol Electrooxidation[J]. Journal of Electrochemistry, 2014 , 20(2): 110-115.
DOI: 10.13208/j.electrochem.130418
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss2/4

References

[1] Kim D B, Chun H J, Lee Y K, et al. Preparation of Pt/NiO-C electrocatalyst and heat-treatment effect on its electrocatalytic performance for methanol oxidation[J]. International Journal of Hydrogen Energy, 2010, 35(1): 313-320.
[2] Basri S, Kamarudin S K, Daud W R W, et al. Nanocatalyst for direct methanol fuel cell (DMFC)[J]. International Journal of Hydrogen Energy, 2010, 35(15): 7957-7970.
[3] Dillon R, Srinivasan S, Aricò A S, et al. International activities in DMFC R&D: Status of technologies and potential applications[J]. Journal of Power Sources, 2004, 127(1/2): 112-126.
[4] Abida B, Chirchi L, Baranton S, et al. Preparation and characterization of Pt/TiO2 nanotubes catalyst for methanol electro-oxidation[J]. Applied Catalysis B: Environmental, 2011, 106(3/4): 609-615.
[5] Kim H J, Kim D Y, Han H, et al. PtRu/C-Au/TiO2 electrocatalyst for a direct methanol fuel cell[J]. Journal of Power Sources, 2006, 159(1): 484-490.
[6] Ji M B, Wei Z D, Chen S G, et al. A novel anode for preventing liquid sealing effect in DMFC[J]. International Journal of Hydrogen Energy, 2009, 34(6): 2765-2770.
[7] Knights S D, Colbow K M, St-Pierre J, et al. Aging mechanisms and lifetime of PEFC and DMFC[J]. Journal of Power Sources, 2004, 127(1/2): 127-134.
[8] Paoletti C, Cemmi A, Giorgi L, et al. Electro-deposition on carbon black and carbon nanotubes of Pt nanostructured catalysts for methanol oxidation[J]. Journal of Power Sources, 2008, 183(1): 84-91.
[9] Yu X, Ye S. Recent advances in activity and durability enhancement of Pt/C catalytic cathode in PEMFC: Part II: Degradation mechanism and durability enhancement of carbon supported platinum catalyst[J]. Journal of Power Sources, 2007, 172(1): 145-154.
[10] Lee E P, Peng Z, Chen W, et al. Electrocatalytic properties of Pt nanorods supported on Pt and W gauzes[J]. ACS Nano, 2008, 2(10): 2167-2173.
[11] Halder A, Sharma S, Hegde M S, et al. Controlled attachment of ultrafine platinum nanoparticles on functionalized carbon nanotubes with high electrocatalytic activity for methanol oxidation[J]. The Journal of Physical Chemistry C, 2009, 113(4): 1466-1473.
[12] Gan L, Lv R, Du H, et al. High loading of Pt-Ru nanocatalysts by pentagon defects introduced in a bamboo-shaped carbon nanotube support for high performance anode of direct methanol fuel cells[J]. Electrochemistry Communications, 2009, 11(2): 355-358.
[13] Liu Z L, Ling X Y, Su X D, et al. Preparation and characterization of Pt/C and Pt-Ru/C electrocatalysts for direct ethanol fuel cells[J]. Journal of Power Sources, 2005, 149:1-7.
[14] Vogel W. Size contraction in Pt/C and PtRu/C commercial E-TEK electrocatalysts: An in Situ X-ray diffraction study[J]. The Journal of Physical Chemistry C, 2008, 112(35): 13475-13482.
[15] Shanmugam S, Gedanken A. Carbon-coated anatase TiO2 nanocomposite as a high-performance electrocatalyst support[J]. Small, 2007, 3(7): 1189-1193.
[16] Saha M S, Li R Y, Sun X L. Composite of Pt-Ru supported SnO2 nanorods grown on carbon paper for electrocatalytic oxidation of methanol[J]. Electrochemistry Communications, 2007, 9(9): 2229-2234.
[17] Mattos L V, Noronha E. Hydrogen production for fuel cell applications by ethanol partial oxidation on Pt/CeO2 catalysts: The effect of the reaction conditions and reaction mechanism[J]. Journal of Catalysis, 2005, 233(2): 453-463.
[18] Bonanni S, A?t-Mansour K, Harbich W, et al. Effect of the TiO2 reduction state on the catalytic CO oxidation on deposited size-selected Pt clusters[J]. Journal of the American Chemical Society, 2012, 134(7): 3445-3450.
[19] Chen X, Liu L, Yu P Y, et al. Increasing solar absorption for photocatalysis with black hydrogenated titanium dioxide nanocrystals[J]. Science, 2011, 331(6018): 746-750.
[20] Wang G, Wang H, Ling Y, et al. Hydrogen-treated TiO2 nanorod arrays for photoelectrochemical water splitting[J]. Nano Letters, 2011, 11(7): 3026-3033.
[21] Naldoni A, Allieta M, Santangelo S, et al. Effect of nature and location of defects on bandgap narrowing in black TiO2 nanoparticles[J]. Journal of the American Chemical Society, 2012, 134(18): 7600-7603.
[22] Morris D, Dou Y, Rebane J, et al. Photoemission and STM study of the electronic structure of Nb-doped TiO2 [J]. Physical Review B, 2000, 61(20): 13445-13457.
[23] Bartholomew R F, Frankl D R. Electrical properties of some titanium oxides[J]. Physical Review, 1969, 187(3): 828-833.
[24] Park K W, Seol K S. Nb-TiO2 supported Pt cathode catalyst for polymer electrolyte membrane fuel cells[J]. Electrochemistry Communications, 2007, 9(9): 2256-2260.
[25] Wang Y J, Wilkinson D P, Zhang J. Synthesis of conductive rutile-phased Nb0.06Ti0.94O2 and its supported Pt electrocatalysts (Pt/Nb0.06Ti0.94O2) for the oxygen reduction reaction[J]. Dalton Transactions, 2012, 41(4): 1187-1194.
[26] Kumar A, Madaria A R, Zhou C. Growth of aligned single-crystalline rutile TiO2 nanorods on arbitrary substrates and their application in dye-sensitized solar cells[J]. The Journal of Physical Chemistry C, 2010, 114(17): 7787-7792.
[27] McCafferty E, Wightman J P. Determination of the concentration of surface hydroxyl groups on metal oxide films by a quantitative XPS method[J]. Surface and Interface Analysis, 1998, 26(8): 549-564.
[28] Solla-Gullon J, Rodriguez P, Herrero E, et al. Surface characterization of platinum electrodes[J]. Physical Chemistry Chemical Physics, 2008, 10(10): 1359-1373.
[29] Trasatti S, Petrii O A. Real surface area measurements in electrochemistry[J]. Pure and applied chemistry, 1991, 63(5): 711-734.