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Meng Wang
University of Science and Technology Beijing
CatalysisInorganic chemistryChemistryDirect methanol fuel cellCathode
19Publications
9H-index
190Citations
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Publications 17
Newest
#1Zhaoyi Yang (USTB: University of Science and Technology Beijing)H-Index: 3
#2Meng Wang (USTB: University of Science and Technology Beijing)H-Index: 9
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 8 authors...
Herein, the pulse temperature is provided during the nucleation period of the nanoparticles to shorten the nucleation time for Pt-based nanoparticle growth. Herein, 3-nm-sized Pt-Ni alloy octahedral catalysts were prepared by pulse-like hydrothermal method. The influence of the pulse on nucleation is demonstrated by comparing the morphology obtained from the conditions of constant temperature and pulse temperature. It has been found that pulse temperature could decrease the nucleation time, and ...
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#1Zhaoyi Yang (USTB: University of Science and Technology Beijing)H-Index: 3
#2Ming Chen (USTB: University of Science and Technology Beijing)H-Index: 20
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 5 authors...
Abstract In order to inhibit the corrosion of carbon support and agglomeration of Pt nanoparticles in conventional Pt/XC-72 catalyst, the conventional Pt/C catalyst was modified by in-situ deposition of amorphous tungsten carbide (WC) at the catalyst/support interface. The results show that proper amount of WC can improve the performance and durability of catalyst, and excessive addition of W element will combine with oxygen and transform into WO3, thus covering Pt nanoparticles and reducing the...
1 CitationsSource
#1Meng Wang (USTB: University of Science and Technology Beijing)H-Index: 9
#2Ming Chen (USTB: University of Science and Technology Beijing)H-Index: 20
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 7 authors...
Abstract This paper mainly focuses on the optimization and design of cathode catalyst layer structure for low-Pt loading membrane assembly electrode. When Pt loading at cathode increased from 0.025 mg cm−2 to 0.4 mg cm−2, the apparent current density of electrode increases gradually, while the electrochemical active surface area (ECSA) and the utilization rate of catalyst show a downward trend. As Pt loading at cathode keeps at 0.1 mg cm−2, commercial Vulcan XC-72 carbon are doped into the conve...
1 CitationsSource
#1Ming Chen (USTB: University of Science and Technology Beijing)H-Index: 20
#2Meng Wang (USTB: University of Science and Technology Beijing)H-Index: 9
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 5 authors...
Abstract This paper focuses on the gradual performance and durability degradation behaviors of a direct methanol fuel cell (DMFC) with more than 3000 h lifetime. This work adopted a new DMFC test strategy and the entire lifetime test consisted of No.1-No.166 single operation. Stage-failure phenomenon occurred in the lifetime test, which indicated the existence of recoverable and non-recoverable degradations during the entire operation process. In-situ electrochemical tests were applied to the DM...
3 CitationsSource
#1Meng Wang (USTB: University of Science and Technology Beijing)H-Index: 9
#2Ming Chen (USTB: University of Science and Technology Beijing)H-Index: 20
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 8 authors...
Abstract Hydrogen peroxide is added into the anode methanol fuel as a pro-oxygenic agent to improve the electro-oxidation reaction rate of methanol in low-temperature direct methanol fuel cell. Cyclic voltammetry, electrochemical impedance spectroscopy and steady-state polarization with three-electrode system are used to test the catalytic efficiency with different concentrations of hydrogen peroxide additive. The mechanism of pro-oxygenic activity is revealed by cyclic voltammetry method. The r...
4 CitationsSource
#1Peipeng Li (USTB: University of Science and Technology Beijing)H-Index: 1
#2Xianan Ding (USTB: University of Science and Technology Beijing)H-Index: 7
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 6 authors...
This article reported the electrochemical deposition of polyaniline (PANI) on 316-L stainless steel (316LSS) to improve the anti-corrosion performance as PEMFC metal bipolar plates. The results indicate that PANI can increase the corrosion potential of 316LSS by more than 410.57 mV and effectively decrease the corrosion current density by four orders of magnitude in comparison with the uncoated 316LSS. The experimental results showed that the PANI increased the open-circuit potential of the stee...
3 CitationsSource
#1Wenbing Liu (USTB: University of Science and Technology Beijing)H-Index: 1
#2Liang Li (USTB: University of Science and Technology Beijing)H-Index: 1
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 7 authors...
The performance of Organic-inorganic hybrid perovskite solar cells strongly depend on the quality of perovskite layer. Features of perovskite layer such as grain size, shape, orientation and coverage are mainly determined by the earlier stages of nucleation and growth, which can be controlled by the deposition conditions. Thus, detailed knowledge of such correlations is helpful to optimize thin film quality with regard to controll the deposition parameters. In this work, based on AFM and SEM stu...
12 CitationsSource
#1Guicheng Liu (KIST: Korea Institute of Science and Technology)H-Index: 15
#2Xinyang Li (CAS: Chinese Academy of Sciences)H-Index: 7
Last. Joong Kee Lee (KIST: Korea Institute of Science and Technology)H-Index: 33
view all 8 authors...
Abstract To optimize mass transfer property and electronic conductivity for direct methanol fuel cells with high discharge current density, in this paper, the influence of the modified components in anode diffusion layer on fuel cell performance has been investigated systematically. The modifications include binder type, carbon powder loading and sintering treatment in microporous layer, and surficial decoration of supporting layer. The fuel cell based on the hydrophilic diffusion layer which co...
15 CitationsSource
#1Yituo Wang (USTB: University of Science and Technology Beijing)H-Index: 8
#2Le Zheng (USTB: University of Science and Technology Beijing)H-Index: 1
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 7 authors...
Abstract The effect of hydrophilic treatment within the anode diffusion layer for direct methanol fuel cell (DMFC) has been investigated. By nitrated treatment, the surface structure and wettability of diffusion layer can be tuned. The anode micro-porous surface of carbon paper with hydrophilic adhesive after nitrated treatment presents more multi-hole structures with about 30 μm large pores and about 5 μm small pores, which were significantly larger than commercial carbon cloth and carbon paper...
14 CitationsSource
#1Yituo Wang (USTB: University of Science and Technology Beijing)H-Index: 8
#2Guimei HanH-Index: 2
Last. Xindong Wang (USTB: University of Science and Technology Beijing)H-Index: 18
view all 6 authors...
Bentonite (BOT) has excellent hygroscopicity and large specific surface, so it is chosen as a dopant of Nafion® membranes in this paper. By using the sol–gel method, bentonite has been modified by dodecylamine and fixed to the Nafion 212 membrane to prepare a Nafion/SiO2/m-BOT composite membrane. The results of SEM and FT-IR shows that m-BOT is successfully synthesized and bound well with the Nafion 212 membrane. The limiting current density of cathode methanol oxidation indicates that the metha...
9 CitationsSource
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