Pt/H-TiO2催化剂制备及其甲醇电催化氧化性能

doi:10.13208/j.electrochem.130418

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (2): 110-115. doi: 10.13208/j.electrochem.130418

Pt/H-TiO₂催化剂制备及其甲醇电催化氧化性能

韩金¹，周志有^1*，汪强¹，吕妙强¹，陈驰^1,2，孙世刚¹

1. 厦门大学固体表面物理化学国家重点实验室，化学化工学院化学系，福建厦门 361005；2. 华东理工大学化学工程国家重点实验室，上海 200237

收稿日期:2013-04-17 修回日期:2013-05-16 出版日期:2014-04-28 发布日期:2014-04-17
通讯作者: 周志有 E-mail:zhouzy@xmu.edu.cn
基金资助:
国家自然科学基金项目（No. 20933004）资助

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

HAN Jin¹, ZHOU Zhi-you^1*, WANG Qiang¹, LV Miao-qiang¹, CHEN Chi^1,2, SUN Shi-gang¹

1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China; 2. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2013-04-17 Revised:2013-05-16 Published:2014-04-28 Online:2014-04-17
Contact: ZHOU Zhi-you E-mail:zhouzy@xmu.edu.cn

摘要/Abstract

摘要： 以四氯化钛为前驱体，采用水热法合成二氧化钛纳米棒（TiO₂，白色），在纯H₂气氛，将其550 ^oC热处理2 h，即得有氧缺陷和Ti³⁺填隙原子的二氧化钛纳米棒（H-TiO₂，灰黑色）. 将Pt纳米粒子（~ 1.9 nm）负载于此两种二氧化钛纳米棒上，制得Pt/TiO₂和Pt/H-TiO₂催化剂. XRD和XPS测试表明，氢处理TiO₂晶型没有变化，仍属金红石型，但增加了Ti-OH表面物种. 电化学测试表明，H-TiO₂载体能够增强氧在Pt表面的吸脱附能力，从而提高其甲醇电催化氧化活性，Pt/H-TiO₂电极甲醇氧化峰电流密度为Pt/TiO₂电极的1.6倍、Pt/C电极的2.1倍.

关键词: 铂纳米粒子, TiO₂纳米棒, 氢处理, 甲醇电氧化, 氧缺陷, Ti³⁺填隙原子

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.

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

中图分类号:

O646

韩金，周志有*，汪强，吕妙强，陈驰，孙世刚. Pt/H-TiO₂催化剂制备及其甲醇电催化氧化性能[J]. 电化学（中英文）, 2014, 20(2): 110-115.

HAN Jin, ZHOU Zhi-you*, WANG Qiang, LV Miao-qiang, CHEN Chi, SUN Shi-gang. Preparation of Pt/H-TiO₂ Catalyst with Improved Catalytic Performance for Methanol Electrooxidation[J]. Journal of Electrochemistry, 2014, 20(2): 110-115.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.130418

https://electrochem.xmu.edu.cn/CN/Y2014/V20/I2/110

参考文献

[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.

Pt/H-TiO₂催化剂制备及其甲醇电催化氧化性能

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

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 8

Metrics

[1]	张生雅, 姚敏, 王泽, 刘天娇, 张蓉芳, 叶慧琴, 冯彦俊, 卢小泉. 通过扫描光电化学显微镜研究超分子光敏剂-二氧化钛薄膜系统的光诱导电子转移[J]. 电化学（中英文）, 2023, 29(6): 2218005-.
[2]	张月凤, 刘建军, 危增曦, 田欣欣, 马建民. 单层含氧缺陷δ-MnO₂用于二氧化碳还原[J]. 电化学（中英文）, 2019, 25(4): 477-485.
[3]	廉思甜, 吕建帅, 于强, 胡光武, 陈卓, 周亮, 麦立强. 二氧化钛基钠离子电池负极材料研究进展[J]. 电化学（中英文）, 2019, 25(1): 31-44.
[4]	黄龙，詹梅，王宇成，林燕芬，刘硕，袁婷，杨辉，孙世刚. 碳纸负载高指数晶面铂纳米粒子的制备及其在直接甲酸燃料电池中的催化性能研究[J]. 电化学（中英文）, 2016, 22(2): 123-128.
[5]	马静华, 王睿翔, 谭一良, 王珊珊, 张艳勤, 樊友军. Pt/PMo₁₂/PEDOT/GC电极的制备及其甲醇电氧化性能[J]. 电化学（中英文）, 2013, 19(2): 164-168.
[6]	程前, 姜艳霞, 曾冬梅, 孙世刚, . 铂纳米粒子电极上NO吸附和还原的CV及原位FTIR研究[J]. 电化学（中英文）, 2009, 15(4): 392-396.
[7]	郭勋, 郭道军, 邱新平, 陈立泉, 朱文涛, . 高利用率多壁碳纳米管负载金铂合金纳米粒子催化剂在碱性溶液中的甲醇电催化氧化性能研究[J]. 电化学（中英文）, 2009, 15(1): 38-42.
[8]	褚道葆,冯德香,张金花,李晓华. Ti基纳米TiO_2-CNT-Pt复合电极制备、表征及电化学性能[J]. 电化学（中英文）, 2005, 11(2): 219-223.