Synthesis of Ti0.7Mo0.3O2 supported-Pt nanodendrites and their catalytic activity and stability for oxygen reduction reaction

Nguyen, Trung Thanh; Ho, Van Thi Thanh; Pan, Chun‐Jern; Liu, Jyong-Yue; Chou, Hung‐Lung; Rick, John; Su, Wei‐Nien; Hwang, Bing‐Joe

doi:10.1016/j.apcatb.2014.02.018

Cited by 40 publications

(18 citation statements)

References 47 publications

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“…Recently, the combination of highly stable TiO 2 with MoO x , noted for its high electronic conductivity and relative stability in acid solutions, was used for the preparation of multifunctional Ti 0.7 Mo 0.3 O 2 support material for Pt-based catalyst and was successfully applied in the oxygen reduction reaction (ORR) [20,21]. Due to their enhanced CO tolerance Pt/WO x electrocatalysts have been considered as potential candidates for the PEMFC anode [22,23].…”

Section: Introductionmentioning

confidence: 99%

Preparation of CO-tolerant anode electrocatalysts for polymer electrolyte membrane fuel cells

Gubán

Tompos

Bakos

et al. 2017

International Journal of Hydrogen Energy

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The preparation and the thorough characterization of 40 wt% Pt electrocatalysts supported on Ti (1-x) M x O 2-C (M= W, Mo; x= 0.3-0.4) composite materials with enhanced stability and efficiency is presented. W-containing composite supported catalyst with different structural characteristics were compared in order to explore the influence of the nature of the W species on the electrocatalytic performance. The assessment of the electrochemical properties of the novel catalysts revealed a correlation between the degree of W incorporation, the hydrogen spillover effect and the stability against initial leaching which influences the activity and CO tolerance of the catalysts. A preparation route for Ti 0.7 Mo 0.3 O 2-C composite with high extent of Mo incorporation was developed. No significant difference was observed in the activity, stability and CO tolerance of the W-or Mo-containing composite supported Pt catalysts with almost complete incorporation of the oxophilic dopant. Better performance of the Pt/Ti 0.7 M 0.3 O 2-C (M= W, Mo) electrocatalysts in a single cell test device using hydrogen containing 100 ppm CO compared to the reference Pt/C and PtRu/C (Quintech) catalysts was also demonstrated.

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Section: Introductionmentioning

confidence: 99%

Preparation of CO-tolerant anode electrocatalysts for polymer electrolyte membrane fuel cells

Gubán

Tompos

Bakos

et al. 2017

International Journal of Hydrogen Energy

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“…6A, a fast equilibrium was obtained after short adsorption time of around 20 min for Ag/ARHA materials, proving that it is a promising adsorbent for environmental applications. This can be attributed to the chemical adsorption and the strong interaction support metal (SISM) with charged silver surface [20,21]. As known, the SISM is created from the interaction between metal and support (e.g.…”

Section: Adsorption Of Chloride Into Ag/arha Nanomaterialsmentioning

confidence: 99%

Activated rice husk ash-supported silver nanoparticles as a novel adsorbent toward chloride removal

Nguyễn¹,

Padungthon²,

Huy³

2019

Desalination and Water Treatment

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Chloride contamination of water from climate change and salty waste water is known as a serious issue of water and wastewater treatment. In this study, Ag/ARHA (activated rice husk ash) material was designed and fabricated as a novel adsorbent for chloride removal in aqueous solution. The deposition of Ag on ARHA material was done by a facile precipitation method using AgNO 3 as precursor and NaBH 4 as reductant. The material was then characterized by Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and Brunauer-Emmett-Teller analyses. In chloride removal test, the Ag/ARHA adsorbent showed high chloride capacity of 7.9 mgCl-/g Ag with good durability after at least ten cycles of adsorption-desorption. This high capacity could be due to the strong interaction between the ARHA support and Ag metal as well as the chemical adsorption of chloride onto silver nanoparticle surface on ARHA support with high surface area. Additionally, H 2 O 2 was proven as an effective solution for regeneration of the used Ag/ARHA adsorbent. Since the selectivity of Ag/ARHA for chloride removal was very high and seemly not affected by other anions, this novel adsorbent has a great potential for chloride contaminated water and wastewater treatment applications.

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“…However, the corrosion of carbon-support materials by electrochemical oxidation in fuel cell operating environments and the loss of ECSA due to catalyst aggregation, in addition to the separation of the catalyst from the catalyst support, thereby causing a degradation in performance, have been extensively reported. 3,[9][10][11][12] Recently, much attention has been centered on the development of materials that exhibit corrosion resistance and high conductivity, such as carbon nanobers, 13 carbon nanotubes, 14,15 graphene 16 or N-doped graphene, 17 and highly stable conducting metal oxides, 18,19 which can greatly slow down the corrosion support or introduce a synergistic co-catalytic effect between Pt and the support, such as highly CO-tolerant and electrocatalytic activity for hydrogen oxidation and ORR. Thus, support materials with high corrosion resistance and desired conductivity are promising, and it is necessary to explore alternatives to replace carbon-support materials to improve the durability of PEMFCs.…”

Section: Introductionmentioning

confidence: 99%

Hollow and porous titanium nitride nanotubes as high-performance catalyst supports for oxygen reduction reaction

Pan

Xiao

et al. 2014

J. Mater. Chem. A

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Synthesis of Ti0.7Mo0.3O2 supported-Pt nanodendrites and their catalytic activity and stability for oxygen reduction reaction

Cited by 40 publications

References 47 publications

Preparation of CO-tolerant anode electrocatalysts for polymer electrolyte membrane fuel cells

Preparation of CO-tolerant anode electrocatalysts for polymer electrolyte membrane fuel cells

Activated rice husk ash-supported silver nanoparticles as a novel adsorbent toward chloride removal

Hollow and porous titanium nitride nanotubes as high-performance catalyst supports for oxygen reduction reaction

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