Characterization of an electrochemical hydrogen pump with internal humidifier and dead-end anode channel

Yan Ming Hao; Hironori Nakajima; Hiroshi Yoshizumi; Akiko Inada; Kazunari Sasaki; Kohei Ito

doi:10.1016/j.ijhydene.2016.05.160

Characterization of an electrochemical hydrogen pump with internal humidifier and dead-end anode channel

Yan Ming Hao, Hironori Nakajima, Hiroshi Yoshizumi, Akiko Inada, Kazunari Sasaki, Kohei Ito

Hydrogen Utilization Engineering

Research output: Contribution to journal › Article

8 Citations (Scopus)

Abstract

Electrochemical hydrogen pump (EHP) with an internal humidifier is reported. The internal humidifier contains liquid water stored in a vessel built in the cathode end plate, and the water directly wets a polymer electrolyte membrane (PEM). By using the internal humidifier, conductivity of the PEM is higher than that using a conventional vapor humidifier. A modeling of water transport is built to discuss the water balance in the membrane. Electrochemical impedance spectroscopy (EIS) is employed for analyzing the resistance components included in the EHP. In particular, the effects of compression ratio on resistance components are investigated.

Original language	English
Pages (from-to)	13879-13887
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	41
Issue number	32
DOIs	https://doi.org/10.1016/j.ijhydene.2016.05.160
Publication status	Published - Aug 24 2016

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All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

Cite this

Hao, Y. M., Nakajima, H., Yoshizumi, H., Inada, A., Sasaki, K., & Ito, K. (2016). Characterization of an electrochemical hydrogen pump with internal humidifier and dead-end anode channel. International Journal of Hydrogen Energy, 41(32), 13879-13887. https://doi.org/10.1016/j.ijhydene.2016.05.160

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AU - Ito, Kohei

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10.1016/j.ijhydene.2016.05.160