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Title: Hydrocarbon sensors and materials therefor

Abstract

An electrochemical hydrocarbon sensor and materials for use in sensors. A suitable proton conducting electrolyte and catalytic materials have been found for specific application in the detection and measurement of non-methane hydrocarbons. The sensor comprises a proton conducting electrolyte sandwiched between two electrodes. At least one of the electrodes is covered with a hydrocarbon decomposition catalyst. Two different modes of operation for the hydrocarbon sensors can be used: equilibrium versus non-equilibrium measurements and differential catalytic. The sensor has particular application for on-board monitoring of automobile exhaust gases to evaluate the performance of catalytic converters. In addition, the sensor can be utilized in monitoring any process where hydrocarbons are exhausted, for instance, industrial power plants. The sensor is low cost, rugged, sensitive, simple to fabricate, miniature, and does not suffer cross sensitivities.

Inventors:
 [1];  [2]
  1. San Jose, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873155
Patent Number(s):
6103080
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hydrocarbon; sensors; materials; electrochemical; sensor; suitable; proton; conducting; electrolyte; catalytic; found; specific; application; detection; measurement; non-methane; hydrocarbons; comprises; sandwiched; electrodes; covered; decomposition; catalyst; modes; operation; equilibrium; versus; non-equilibrium; measurements; differential; particular; on-board; monitoring; automobile; exhaust; gases; evaluate; performance; converters; addition; utilized; process; exhausted; instance; industrial; power; plants; cost; rugged; sensitive; simple; fabricate; miniature; suffer; sensitivities; catalytic converter; conducting electrolyte; proton conducting; power plants; particular application; exhaust gases; power plant; exhaust gas; sensor comprises; specific application; catalytic material; catalytic materials; electrolyte sandwiched; decomposition catalyst; /204/205/

Citation Formats

Pham, Ai Quoc, and Glass, Robert S. Hydrocarbon sensors and materials therefor. United States: N. p., 2000. Web.
Pham, Ai Quoc, & Glass, Robert S. Hydrocarbon sensors and materials therefor. United States.
Pham, Ai Quoc, and Glass, Robert S. Sat . "Hydrocarbon sensors and materials therefor". United States. https://www.osti.gov/servlets/purl/873155.
@article{osti_873155,
title = {Hydrocarbon sensors and materials therefor},
author = {Pham, Ai Quoc and Glass, Robert S},
abstractNote = {An electrochemical hydrocarbon sensor and materials for use in sensors. A suitable proton conducting electrolyte and catalytic materials have been found for specific application in the detection and measurement of non-methane hydrocarbons. The sensor comprises a proton conducting electrolyte sandwiched between two electrodes. At least one of the electrodes is covered with a hydrocarbon decomposition catalyst. Two different modes of operation for the hydrocarbon sensors can be used: equilibrium versus non-equilibrium measurements and differential catalytic. The sensor has particular application for on-board monitoring of automobile exhaust gases to evaluate the performance of catalytic converters. In addition, the sensor can be utilized in monitoring any process where hydrocarbons are exhausted, for instance, industrial power plants. The sensor is low cost, rugged, sensitive, simple to fabricate, miniature, and does not suffer cross sensitivities.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}