Characteristics of Pt/Nafion® electrodes prepared by an impregnation-reduction method in sensing hydrogen

B. J. Hwang; Y. C. Liu; W. C. Hsu

Characteristics of Pt/Nafion® electrodes prepared by an impregnation-reduction method in sensing hydrogen

B. J. Hwang, Y. C. Liu, W. C. Hsu

研究成果: 雜誌貢獻 › 文章 › 同行評審

摘要

The influences of reductant concentration and platinum loading on the response, recovery time and sensitivity of Pt/Nafion® electrodes prepared by an impregnation-reduction method for detecting hydrogen were investigated. Electrodes with a Pt loading of 4.99 mg cm^-2 obtained using 0.0107 M Pt(NH₃)₄Cl₂ and 0.06 M NaBH₄, showed a maximum sensitivity of 0.0744 μA ppm^-1 in the H₂ concentration range of 0∼4508 ppm. However, electrodes with a Pt loading of 7.40 mg cm^-2 made using 0.015 M Pt(NH₃)₄Cl₂ and 0.06 M NaBH₄ showed the fastest response and recovery. Generally, both the response and the recovery time decreased with increasing hydrogen concentration. A model is proposed to illustrate the sensing phenomenon.

原文	英語
頁（從 - 到）	69-75
頁數	7
期刊	Journal of New Materials for Electrochemical Systems
卷	4
發行號	2
出版狀態	已發佈 - 2001
對外發佈	是

ASJC Scopus subject areas

一般材料科學
電化學
可再生能源、永續發展與環境

UN SDG

此研究成果有助於以下永續發展目標

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title = "Characteristics of Pt/Nafion{\textregistered} electrodes prepared by an impregnation-reduction method in sensing hydrogen",

abstract = "The influences of reductant concentration and platinum loading on the response, recovery time and sensitivity of Pt/Nafion{\textregistered} electrodes prepared by an impregnation-reduction method for detecting hydrogen were investigated. Electrodes with a Pt loading of 4.99 mg cm-2 obtained using 0.0107 M Pt(NH3)4Cl2 and 0.06 M NaBH4, showed a maximum sensitivity of 0.0744 μA ppm-1 in the H2 concentration range of 0∼4508 ppm. However, electrodes with a Pt loading of 7.40 mg cm-2 made using 0.015 M Pt(NH3)4Cl2 and 0.06 M NaBH4 showed the fastest response and recovery. Generally, both the response and the recovery time decreased with increasing hydrogen concentration. A model is proposed to illustrate the sensing phenomenon.",

keywords = "Impregnation-reduction method, Pt/Nafion{\textregistered}, Response and recovery time, Sensitivity",

author = "Hwang, {B. J.} and Liu, {Y. C.} and Hsu, {W. C.}",

year = "2001",

language = "English",

volume = "4",

pages = "69--75",

journal = "Journal of New Materials for Electrochemical Systems",

issn = "1480-2422",

publisher = "Ecole Polytechnique de Montreal",

number = "2",

}

TY - JOUR

T1 - Characteristics of Pt/Nafion® electrodes prepared by an impregnation-reduction method in sensing hydrogen

AU - Hwang, B. J.

AU - Liu, Y. C.

AU - Hsu, W. C.

PY - 2001

Y1 - 2001

N2 - The influences of reductant concentration and platinum loading on the response, recovery time and sensitivity of Pt/Nafion® electrodes prepared by an impregnation-reduction method for detecting hydrogen were investigated. Electrodes with a Pt loading of 4.99 mg cm-2 obtained using 0.0107 M Pt(NH3)4Cl2 and 0.06 M NaBH4, showed a maximum sensitivity of 0.0744 μA ppm-1 in the H2 concentration range of 0∼4508 ppm. However, electrodes with a Pt loading of 7.40 mg cm-2 made using 0.015 M Pt(NH3)4Cl2 and 0.06 M NaBH4 showed the fastest response and recovery. Generally, both the response and the recovery time decreased with increasing hydrogen concentration. A model is proposed to illustrate the sensing phenomenon.

AB - The influences of reductant concentration and platinum loading on the response, recovery time and sensitivity of Pt/Nafion® electrodes prepared by an impregnation-reduction method for detecting hydrogen were investigated. Electrodes with a Pt loading of 4.99 mg cm-2 obtained using 0.0107 M Pt(NH3)4Cl2 and 0.06 M NaBH4, showed a maximum sensitivity of 0.0744 μA ppm-1 in the H2 concentration range of 0∼4508 ppm. However, electrodes with a Pt loading of 7.40 mg cm-2 made using 0.015 M Pt(NH3)4Cl2 and 0.06 M NaBH4 showed the fastest response and recovery. Generally, both the response and the recovery time decreased with increasing hydrogen concentration. A model is proposed to illustrate the sensing phenomenon.

KW - Impregnation-reduction method

KW - Pt/Nafion®

KW - Response and recovery time

KW - Sensitivity

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M3 - Article

AN - SCOPUS:0011253858

SN - 1480-2422

VL - 4

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EP - 75

JO - Journal of New Materials for Electrochemical Systems

JF - Journal of New Materials for Electrochemical Systems

IS - 2

ER -

Characteristics of Pt/Nafion® electrodes prepared by an impregnation-reduction method in sensing hydrogen

摘要

ASJC Scopus subject areas

UN SDG

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