Amperometric hydrogen sensor for high-temperature water

被引：13

作者：

Kriksunov, LB

Macdonald, DD

机构：

[1] Center for Advanced Materials, Pennsylvania State University, 517 Deike Building, University Park

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1996年 / 32卷 / 01期

关键词：

amperometric sensors; high-temperature water; hydrogen sensors;

D O I：

10.1016/0925-4005(96)80109-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An amperometric sensor is described for monitoring hydrogen in situ in high-temperature high-pressure aqueous solutions (T<300 degrees C). For a constant cell voltage, the current is found to vary linearly with the square root of the hydrogen concentration in the water. This dependence may be rationalized by assuming that the rate-determining step is the oxidation of atomic hydrogen on the platinum surface. A modification of this sensor is suggested to permit the monitoring of hydrogen at temperatures above 300 degrees C.

引用

页码：57 / 60

页数：4

共 8 条

[1] SOLID-STATE SENSORS FOR TRACE HYDROGEN GAS-DETECTION
CHRISTOFIDES, C
MANDELIS, A
[J]. JOURNAL OF APPLIED PHYSICS, 1990, 68 (06) : R1 - R30
[2] STRUCTURAL CONCEPTS IN INORGANIC PROTON CONDUCTORS
CLEARFIELD, A
[J]. SOLID STATE IONICS, 1991, 46 (1-2) : 35 - 43
[3] DING K, 1995, IN PRESS J CHEM SOC
[4] KRIKSUNOV LB, 1995, P 1 INT S SUP WAT OX
[5] LIU C, 1995, IN PRESS J SUPERCRIT
[6] CONTINUOUS INSITU METHOD FOR THE MEASUREMENT OF DISSOLVED HYDROGEN IN HIGH-TEMPERATURE AQUEOUS SYSTEMS
MACDONALD, DD
MCKUBRE, MCH
SCOTT, AC
WENTRCEK, PR
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1981, 20 (03): : 290 - 297
[7] MILLETT P, 1995, PHYSICAL CHEM AQUEOU, P393
[8] Naumov G.B., 1974, Handbook of thermodynamic data

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