Effect of Modification Factors of MWCNTs Support on Electrocatalytic Performance of Pt Nanoparticles

doi:10.15541/jim20140581

Abstract

Abstract:

A simple and green method of modified multi-wall carbon nanotubes (MWCNTs) by methylene blue under ultraviolet irradiation was reported. The irradiation time, methylene blue dosage and ultraviolet wavelength were considered as the three main factors. The different factors of functionalized MWCNTs and their catalytic performance were systematically studied. TEM was used to indicate the catalyst morphology. Cyclic voltammetric and chronoamperometric experiments were used to study catalytic activity and stability for methanol in alkaline solution. The results showed that the optimal conditions of irradiation time, methylene blue dosage and ultraviolet wavelength are 6 h, 10 mg and 254 nm, respectively. Under these conditions, catalyst has the best dispersion of Pt nanoparticles on the surface of functionalized MWCNTs, realizing the best catalytic performance, with catalytic activity at 2-fold of that of the commercial Pt/C catalyst. This modification of MWCNTs provides a new way for achieving anode catalysts with high activity and low cost in the fuel cells.

Key words: MWCNTs modification, ultraviolet irradiation, methylene blue, methanol oxidation, Pt nanoparticles

CLC Number:

TQ174

XU Ming-Li, DUAN Ben, ZHANG Ying-Jie, YANG Guo-Tao, DONG Peng, XIA Shu-Biao, YANG Xian-Wan. Effect of Modification Factors of MWCNTs Support on Electrocatalytic Performance of Pt Nanoparticles[J]. Journal of Inorganic Materials, 2015, 30(9): 931-936.

Figures/Tables 6

Fig. 1 UV-Vis absorption spectra of Pt precursor solution after ultraviolet irradiation

Fig. 2 TEM images of the Pt/fx-MWCNTs at different irradiation time (a) 2 h; (b) 4 h; (c) 6 h; (d) 8 h

Fig. 3 TEM images of the Pt/fx-MWCNTs at different methylene blue dosages (a) 5 mg; (b)10 mg, (c) 15 mg; (d) 20 mg

Fig. 4 TEM images and XRD pattern of the Pt/fx-MWCNTs at different ultraviolet wavelengths (a) 254 nm; (b) 300 nm; (c) 365 nm; (d) XRD pattern of the Pt/fx-MWCNTs catalyst

Fig. 5 Cyclic voltammograms of the Pt/fx-MWCNTs under different functional conditions (a) Irradiation time; (b) Methylene blue dosage; (c) Ultraviolet wavelength

Fig. 6 Chronoamperograms of the Pt/fx-MWCNTs at different functional condition (a) Irradiation time; (b) Methylene blue dosage; (c) Ultraviolet wavelength

References 14

[1]	ZHANG MING-BO, YAN TING, GU JIN-GUANG.Maximum power point tracking control of direct methanol fuel cells.Journal of Power Sources, 2014, 247: 1005-1010.
[2]	YUAN WEI, ZHOU BO, DENG JUN, et al.Overview on the developments of vapor-feed direct methanol fuel cells.International Journal of Hydrogen Energy, 2014, 39(12): 6689-6704.
[3]	GUZMAN C, OROZCO G, VERDE Y, et al.Hydrogen peroxide sensor based on modified vitreous carbon with multiwall carbon nanotubes and composites of Pt nanoparticles-dopamine.Electrochimica Acta, 2009, 54(6): 1728-1732.
[4]	CHENG YI, JIANG SAN-PING.Highly effective and CO-tolerant PtRu electrocatalysts supported on poly(ethyleneimine) functionalized carbon nanotubes for direct methanol fuel cells.Electrochimica Acta, 2013, 99: 124-132.
[5]	YANG GUO-TAO, YANG XI-KUN, XU MINGLI.Multi-walled carbon nanotube modified with methylene blue under ultraviolet irradiation as a platinum catalyst support for methanol oxidation.Journal of Power Sources, 2013, 222: 340-343.
[6]	HARADA M, SAIJO K, SAKAMOTO N.Characterization of metal nanoparticles prepared by photoreduction in aqueous solutions of various surfactants using UV-Vis, EXAFS and SAXS. Colloids and Surfaces. A, 2009, 349(1/2/3): 176-188.
[7]	KUNDU S, LIANG H.Shape-selective formation and characterization of catalytically active iridium nanoparticles.Journal of Colloid and Interface Science, 2011, 354(2): 597-606.
[8]	COUSINS B, DAS A, SHARMA R, et al.Enzyme-activated surfactants for dispersion of carbon nanotubes.Small, 2009, 5(5): 587-590.
[9]	AI LUN-HONG, ZHANG CHUN-YING, LIAO FANG, et al.Removal of methylene blue from aqueous solution with magnetite loaded multi-wall carbon nanotube: kinetic, isotherm and mechanism analysis. Journal of Hazarddous Materials 2011, 198: 282-290.
[10]	KOJIMA M, CHIBA T, NIISHIMA J, et al.Dispersion of single- walled carbon nanotubes modified with poly-l-tyrosine in water.Nanoscale Researsh Letters, 2011, 6(1): 128-133.
[11]	LATIF-UR R, RUMANA Q, MUHAMMAD M Y, et al.Synthesis and spectroscopic characterization of Ag-Cu alloy nanoparticles prepared in various ratios.Comptes Rendus Chimie, 2012, 15(6): 533-538.
[12]	WANG LIANG, GUO SHAO-JUN, ZJAI JUN-FENG, et al.Facile synthesis of platinum nanoelectrocatalyst with urchinlike morphology.The Journal of Physical Chemistry C, 2008, 112(35): 13372-13377.
[13]	HUANG YI-YIN, CAI JIN-DI, GUO YONG-LANG.Roles of Pb and MnOx in PtPb/MnOx-CNTs catalyst for methanol electro- oxidation.International Journal of Hydrogen Energy, 2012, 37(2): 1263-1271.
[14]	YE FENG, LIU HUI, FENG YAN, et al.A solvent approach to the size-controllable synthesis of ultrafine Pt catalysts for methanol oxidation in direct methanol fuel cells.Electrochimica Acta, 2014, 117: 480-485.

[1]	CHI Congcong, QU Panpan, REN Chaonan, XU Xin, BAI Feifei, ZHANG Danjie. Preparation of SiO₂@Ag@SiO₂@TiO₂ Core-shell Structure and Its Photocatalytic Degradation Property [J]. Journal of Inorganic Materials, 2022, 37(7): 750-756.
[2]	ZHOU Fan, BI Hui, HUANG Fuqiang. Ultra-large Specific Surface Area Activated Carbon Synthesized from Rice Husk with High Adsorption Capacity for Methylene Blue [J]. Journal of Inorganic Materials, 2021, 36(8): 893-903.
[3]	LYU Ziye, TANG Yiping, CAO Huazhen, ZHENG Guoqu, HOU Guangya. Effect of V Doping on Electrocatalytic Performance of Ni-Co-S on Bacterial Cellulose-derived Carbon Aerogel [J]. Journal of Inorganic Materials, 2020, 35(10): 1142-1148.
[4]	ZHANG Xiao-Feng,ZHANG Guan-Hua,MENG Yue,XUE Ji-Long,XIA Sheng-Jie,NI Zhe-Ming. Photocatalytic Degradation of Methylene Blue by Schiff-base Cobalt Modified CoCr Layered Double Hydroxides [J]. Journal of Inorganic Materials, 2019, 34(9): 974-982.
[5]	SUI Li-Li, WANG Run, ZHAO Dan, SHEN Shu-Chang, SUN Li, XU Ying-Ming, CHENG Xiao-Li, HUO Li-Hua. Construction of Hierarchical α-MoO₃ Hollow Microspheres and Its High Adsorption Performance towards Organic Dyes [J]. Journal of Inorganic Materials, 2019, 34(2): 193-200.
[6]	ZHAO Hai-Bing, XU Hai-Feng, YANG Ke-Wei, LIN Chen-Xue, FENG Miao, YU Yan. Enhanced Photoreversible Color Switching of Methylene Blue Catalyzed by Magnesium-doped TiO₂ Nanocrystals [J]. Journal of Inorganic Materials, 2018, 33(10): 1124-1130.
[7]	YU Yang, TONG Ming-Xing, HE Yu-Lan, CHEN Hui, GAO Jing, LI Guo-Hua. Preparation and Visible-light Photocatalytic Performance of Mesoporous Hollow TiO₂/WO₃ Spheres [J]. Journal of Inorganic Materials, 2017, 32(4): 365-371.
[8]	LI Hang, LU Song-Tao, QIN Wei, WU Xiao-Hong. Current Density on Microstructure and Thermal Control Performances of MgO-ZnO Ceramic Coatings [J]. Journal of Inorganic Materials, 2017, 32(12): 1292-1298.
[9]	PENG Dan, ZHENG Xue-Jun, XIE Shu-Fan, LUO Xiao-Ju, WANG Ding. Fabrication and Photocatalytic Performance of GaN/ZnO Composites [J]. Journal of Inorganic Materials, 2014, 29(9): 956-960.
[10]	ZHANG Tao, XU Zhi-Mou, WU Xing-Hui, LIU Bin-Bing. Deposition of Amorphous Zinc Oxide Thin Film at Room Temperature and Its Resistive Switching Characteristics [J]. Journal of Inorganic Materials, 2014, 29(11): 1161-1166.
[11]	CHEN Yuan, ZHOU Ke-Chao, HUANG Su-Ping, LI Zhi-You, LIU Guo-Cong. Preparation and Photocatalytic Activity of Cu-doped BiVO₄ Photocatalysts Fabricated by Hydrothermal Method [J]. Journal of Inorganic Materials, 2012, 27(1): 19-25.
[12]	LIU Guo-Cong, LI Hai-Bin, DONG Hui. Ultrasonic-hydrothermal Synthesis and Photocatalytic Activities of La-doped Mesoporous TiO₂ Microspheres [J]. Journal of Inorganic Materials, 2011, 26(7): 739-746.
[13]	SHU Huo-Ming, XIE Ji-Min, XU Hui, LI Hua-Ming, XU Yuan-Guo, GU Zheng. Characterization and Photocatalytic Activity of ZnO/AgNbO₃ [J]. Journal of Inorganic Materials, 2010, 25(9): 935-941.
[14]	ZENG Xin,YUAN Xian-Xia,XIA Xiao-Yun,DU Juan,ZHANG Hui-Juan,MA Zi-Feng. Effects of Microwavesynthesizing Parameters on Structure and Electrocatalytic Activity of Pt₂Mo/C towards Methanol Oxidation [J]. Journal of Inorganic Materials, 2010, 25(4): 359-364.
[15]	CHEN Yi,SHI Li-Yi,YUAN Shuai,WU Jun,ZHANG Mei-Hong,FANG Jian-Hui. Photoelectrocatalytic Degradation of Methylene Blue by TiO₂ Nanotube Array Prepared by Anodic Oxidation [J]. Journal of Inorganic Materials, 2009, 24(4): 680-684.