Electrochemical characterization of hydrogen pump with internal humidifier and dead-end anode channel

Kohei Ito; Yang Ming Hao; Hironori Nakajima; Hiroshi Yoshizumi; Kazunari Sasaki

doi:10.1149/05801.0681ecst

Electrochemical characterization of hydrogen pump with internal humidifier and dead-end anode channel

Kohei Ito, Yang Ming Hao, Hironori Nakajima, Hiroshi Yoshizumi, Kazunari Sasaki

Hydrogen Utilization Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Hydrogen gas is compressed with a new electrochemical pump, where internal humidifier is built in, and dead-end at anode is considered for a practical situation. Both the voltage and current efficiency of the hydrogen pump is evaluated experimentally. The pump is operated up to 2 MPaG under the temperature condition of 293 and 333 K. The voltage efficiency indicates nearly 50% at most and the maximum current efficiency is 96%. Overpotentials inherently involved in the pump are discussed with electrochemical impedance spectroscopy.

Original language	English
Pages (from-to)	681-691
Number of pages	11
Journal	ECS Transactions
Volume	58
Issue number	1
DOIs	https://doi.org/10.1149/05801.0681ecst
Publication status	Published - 2013

All Science Journal Classification (ASJC) codes

Engineering(all)

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abstract = "Hydrogen gas is compressed with a new electrochemical pump, where internal humidifier is built in, and dead-end at anode is considered for a practical situation. Both the voltage and current efficiency of the hydrogen pump is evaluated experimentally. The pump is operated up to 2 MPaG under the temperature condition of 293 and 333 K. The voltage efficiency indicates nearly 50% at most and the maximum current efficiency is 96%. Overpotentials inherently involved in the pump are discussed with electrochemical impedance spectroscopy.",

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AU - Hao, Yang Ming

AU - Nakajima, Hironori

AU - Yoshizumi, Hiroshi

AU - Sasaki, Kazunari

PY - 2013

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AB - Hydrogen gas is compressed with a new electrochemical pump, where internal humidifier is built in, and dead-end at anode is considered for a practical situation. Both the voltage and current efficiency of the hydrogen pump is evaluated experimentally. The pump is operated up to 2 MPaG under the temperature condition of 293 and 333 K. The voltage efficiency indicates nearly 50% at most and the maximum current efficiency is 96%. Overpotentials inherently involved in the pump are discussed with electrochemical impedance spectroscopy.

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Electrochemical characterization of hydrogen pump with internal humidifier and dead-end anode channel

Abstract

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