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

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

Abstract

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.

Original language	English
Pages (from-to)	69-75
Number of pages	7
Journal	Journal of New Materials for Electrochemical Systems
Volume	4
Issue number	2
Publication status	Published - 2001
Externally published	Yes

Keywords

Impregnation-reduction method
Pt/Nafion®
Response and recovery time
Sensitivity

ASJC Scopus subject areas

General Materials Science
Electrochemistry
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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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 = "International Information and Engineering Technology Association",

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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UR - http://www.scopus.com/inward/citedby.url?scp=0011253858&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0011253858

SN - 1480-2422

VL - 4

SP - 69

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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