Research of AC Impedance of Dynamic Behavior of Direct Methanol Fuel Cell

Chem. J. Chinese Universities

• 研究论文 • Previous Articles Next Articles

Research of AC Impedance of Dynamic Behavior of Direct Methanol Fuel Cell

LI Jia-Chun^1,2, XIE Xiao-Feng²*, GUO Jian-Wei², QI Liang², ZHOU Tao¹*

1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;
2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

Received:2007-07-16 Revised:1900-01-01 Online:2008-03-10 Published:2008-03-10
Contact: XIE Xiao-Feng, ZHOU Tao

Abstract

Abstract: Electrochemical Impedance Spectrum (EIS) was employed to investigate the dynamic behavior and interior mechanism of direct methanol fuel cell(DMFC) in working states. The spectrums were simulated through the equivalent circuit of L₁R₁[QR₂(L₂R₃)], and the results show that the high inductance L₁ was only related to the EIS measurement process. Meanwhile, the system resistance R₁ and charge transfer resistance R₂ was shown to decrease gradually but was affected by mass transfer at high discharging current. Both the low inductance L₂ and low frequency resistance R₃ in circuit reflected the adsorption/desorption balance of intermediate species originating form methanol oxidation reaction, which decreased with the discharge current increasing. The constant phase elements(CPE) Q in this circuit was mainly influenced by the driving forces of both reactions and mass transfer, and indicated that there existed a transition process from ideal capacitance to the charge transfer with the discharging current increasing.

Key words: Direct methanol fuel cell(DMFC), AC Impedance, Inductance, Resistance, Mass transfer

CLC Number:

O646.54

TrendMD:

LI Jia-Chun^1,2, XIE Xiao-Feng²*, GUO Jian-Wei², QI Liang², ZHOU Tao¹*. Research of AC Impedance of Dynamic Behavior of Direct Methanol Fuel Cell[J]. Chem. J. Chinese Universities, doi: .

[1]	XIA Tian, WAN Jiawei, YU Ranbo. Progress of the Structure-property Correlation of Heteroatomic Coordination Structured Carbon-based Single-atom Electrocatalysts [J]. Chem. J. Chinese Universities, 2022, 43(5): 20220162.
[2]	ZHANG Jie, YIN Bo, LIU Weixin, LIU Xingping, LIAN Wenxian, TANG Shaokun. Fabrication of Boehmite Fiber-reinforced Silica Aerogels and Their Performances [J]. Chem. J. Chinese Universities, 2022, 43(11): 20220483.
[3]	QIAO Zhenghua, FAN Qi, HAO Jingcheng. Silicone Surfactant-enhanced Dual Networks and High Temperature Resistance Porous Silicone Elastomers [J]. Chem. J. Chinese Universities, 2022, 43(10): 20220384.
[4]	LIU Yang, LI Qingbo, SUN Jie, ZHAO Xian. Direct Synthesis of Graphene on AlN Substrates via Ga Remote Catalyzation [J]. Chem. J. Chinese Universities, 2021, 42(7): 2271.
[5]	WU Tao, FANG Yuting, DONG Jie, ZHAO Xin, ZHANG Qinghua. Synthesis and Properties of Polyimide Resin Containing Acetylene and Benzoxazine Double Crosslinking Moieties [J]. Chem. J. Chinese Universities, 2021, 42(6): 1978.
[6]	WU Yingfei,LI Hongyu,CAI Lei,HE Aihua. Structure and Properties of NBR/TBIR Composites with High Abrasion Resistance and Low Heat Built-up ^† [J]. Chem. J. Chinese Universities, 2020, 41(3): 565.
[7]	LI Chong,CHENG Zhongjun,AN Maozhong. Fabrication of Robust Underwater Superoleophobic Copper Mesh with Tunable Oil Adhesion ^† [J]. Chem. J. Chinese Universities, 2020, 41(1): 125.
[8]	ZHANG Xinping, ZHANG Jianping, CAI Lei, ZONG Xin, HE Aihua. Structure and Properties of Damping Materials with Super Fatigue Resistance Based on Chloroprene Rubber^† [J]. Chem. J. Chinese Universities, 2019, 40(7): 1571.
[9]	SUN Mengmeng,CHANG Chunrui,ZHANG Zhiming,AN Libao. Preparation and Electrical Contact Properties of Palladium-doped Multi-walled Carbon Nanotubes^† [J]. Chem. J. Chinese Universities, 2019, 40(1): 11.
[10]	SHI Yue,MAO Qing,XIAO Cheng,JING Weiyun,ZHANG Xueyuan. Nonlinear Spectroscopy Analysis for Electrocatalytic Oxidation of Methanol on PtRu/C Surface^† [J]. Chem. J. Chinese Universities, 2018, 39(9): 2017.
[11]	YANG Jiarui, WANG Yifu, WANG Jilin, WANG Lulu, FENG Ruijiang. In situ Initiation, Polymerization and Construction of Cationic Active Sites of Gemini Molecules in Polysulfone Substrates^† [J]. Chem. J. Chinese Universities, 2018, 39(8): 1829.
[12]	FAN Ye, ZHENG Yizhou, FANG Yun, XIA Yongmei, GAO Di, WANG Jie. Vesiculation of Sodium Conjugated Linoleate in Alkaline Conditions Induced by Oligomerization^† [J]. Chem. J. Chinese Universities, 2018, 39(7): 1483.
[13]	LONG Shijun,CHEN Mingmin,ZHAO Youjiao,WANG Xiaotao,LI Xuefeng,LIAO Yonggui. Regulation of Gemini Surfactant on Photochromic Behavior of PVA Dispersed Spiropyran Organogel Thin Film^† [J]. Chem. J. Chinese Universities, 2018, 39(5): 1078.
[14]	YU Ze, GAO He, ZHENG Kai, LIANG Daxin, LIU Zhiming, PANG Guangsheng, FANG Zhenxing. Preparation and Properties of Surface Functionalized Wood by Nanoscale Manganese Oxide^† [J]. Chem. J. Chinese Universities, 2017, 38(9): 1518.
[15]	WANG Hao, ZHANG Jianping, MA Yunsheng, WANG Riguo, HE Aihua. Modification of SSBR/BR with Trans-1,4-Polyisoprene Alloy Rubber for High Performance Passenger Car Radical Tire Tread Stock^† [J]. Chem. J. Chinese Universities, 2017, 38(11): 2095.

Research of AC Impedance of Dynamic Behavior of Direct Methanol Fuel Cell

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments