Gongquan Sun

Dalian Institute of Chemical Physics

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Luhua Jiang

Qingdao University of Science and Technology

Suli Wang

Chinese Academy of Sciences

Qin Xin

Chinese Academy of Sciences

Zhangxun Xia

Chinese Academy of Sciences

Huanqiao Li

Dalian Institute of Chemical Physics

Erdong Wang

Chinese Academy of Sciences

Hai Sun

Chinese Academy of Sciences

Zhenhua Zhou

Nanfang Hospital

Xiaoming Zhang

Chinese Academy of Sciences

Qiwen Tang

Sir Run Run Shaw Hospital

Cooperative Institutions

Chinese Academy of Sciences

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University of Chinese Academy of Sciences

Dalian Institute of Chemical Physics

Dalian National Laboratory for Clean Energy

Dalian University

Dalian University of Technology

University of Science and Technology of China

Central South University

Changchun Institute of Applied Chemistry

Shanghai Jiao Tong University

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Influencing Factors on the Stability of Direct Methanol Fuel Cells

Fuel Cells (2019)

Fenning Jing Rongchuan Sun S. Wang Y. Li Changjiang Yang

Abstract This work investigated the influencing factors on the stability of direct methanol fuel cells via testing a single‐cell, which was conducted at 60 °C under 100 mA cm −2 for 3,009 h. To completely uncover and interpret the performance degradation mechanism, electrochemical method (such as polarization curve, electrochemical impedance spectra, anode polarization voltammetry, methanol crossover and cyclic voltammetry tests), electron microscopy technique (SEM, TEM and EDX) and XRD spectroscopy were coherently performed in this work. The degradation rate in the whole test process is relatively steady, in which the cell voltage decreases 29% and the maximum power density decreases 35%. However, there is obviously an irreversible degradation when the cell runs at about 1,600 h. According to our analysis, the irreversible degradation of the cell is mainly caused by the increase of resistance and decrease of catalytic activity. Further, the increase of the resistance might be due to the increase of the interface resistance between cathode and Nafion ® membrane according to SEM results. In addition, the decrease of catalytic activity is mostly caused by Ru loss from anode side to cathode side and the agglomeration of catalyst particles in both electrodes.

Nafion

Methanol fuel

10.1002/fuce.201900024

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Citations (12)

Nitrogen/sulfur co-doping assisted chemical activation for synthesis of hierarchical porous carbon as an efficient electrode material for supercapacitors

Electrochimica Acta (2017)

Fulai Qi Zhangxun Xia Wei Wei Hai Sun Suli Wang

Carbon fibers

Specific surface area

Gravimetric analysis

10.1016/j.electacta.2017.05.192

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Citations (48)

Rational design of a highly efficient Pt/graphene–Nafion® composite fuel cell electrode architecture

Journal of Materials Chemistry A (2014)

Zhangxun Xia Suli Wang Luhua Jiang Hai Sun Fulai Qi

Newly designed electrode architecture based on Pt/graphene–Nafion® composite macroporous scaffold demonstrating ultra-high Pt utilization and superior fuel cell performance is presented.

Nafion

Rational design

10.1039/c4ta05399k

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Citations (31)

Effect of Addition of Fe to Pt/C Cathode Catalyst in Direct Methanol Fuel Cell

Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) (2006)

Wenzhen Li Gongquan Sun Qin Xin Yushan Yan

Abstract not Available.

10.1149/ma2006-01/33/1110

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Atomically dispersed Fe-N-C derived from dual metal-organic frameworks as efficient oxygen reduction electrocatalysts in direct methanol fuel cells

Applied Catalysis B Environment and Energy (2019)

Xinlong Xu Zhangxun Xia Xiaoming Zhang Ruili Sun Xuejing Sun

Methanol fuel

Rational design

10.1016/j.apcatb.2019.118042

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Citations (105)

Comparison of alkaline stability of quaternary ammonium- and 1,2-methylimidazolium-based alkaline anion exchange membranes

Journal of Membrane Science (2015)

Congrong Yang Suli Wang Wenjia Ma Luhua Jiang Gongquan Sun

Alkaline fuel cell

10.1016/j.memsci.2015.03.067

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Citations (45)

Multi-wall carbon nanotube supported Pt–Sn nanoparticles as an anode catalyst for the direct ethanol fuel cell

Carbon (2004)

Xinsheng Zhao Wenzhen Li Luhua Jiang Weijiang Zhou Qin Xin

Carbon fibers

Direct-ethanol fuel cell

10.1016/j.carbon.2004.07.031

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Citations (68)

A novel method for analysis and prediction of methanol mass transfer in direct methanol fuel cell

Energy Conversion and Management (2017)

Feng Ji Linlin Yang Hai Sun Suli Wang Huanqiao Li

Dimensionless quantity

Mass transfer coefficient

Methanol fuel

10.1016/j.enconman.2017.10.083

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Citations (13)

Yolk–shell structured iron carbide/N-doped carbon composite as highly efficient and stable oxygen reduction reaction electrocatalyst

Carbon (2014)

Lingzheng Gu Luhua Jiang Jutao Jin Jing Liu Gongquan Sun

Carbon fibers

Polypyrrole

10.1016/j.carbon.2014.11.010

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Citations (56)

Coupling Effect Between Cobalt Oxides And Carbon For Oxygen Reduction Reaction

ChemSusChem (2012)

Jing Liu Luhua Jiang Qiwen Tang Bingsen Zhang Dang Sheng Su

Same selectivity hides different pathways: The same apparent 4-electron process for the oxygen-reduction-reaction hides different pathways over carbon-supported cobalt oxide catalysts depending on the potential. At low overpotentials, the ORR intermediate HO2− preferably disproportionates to oxygen, whereas at high overpotentials the disproportionation and reduction reaction occur in parallel. Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Carbon fibers

Cobalt oxide

10.1002/cssc.201200563

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Citations (47)