2025 SMSI Bannerklein

P1.8.13 Peat as an alternative material for use in ammonia sensors

Event
14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany
Chapter
P1.8 Sensors Based on New Materials
Author(s)
N. Ribeiro - Instituto Federal de Mato Grosso (Brazil), N. Pereira - Insituto de Química da Universidade de Brasíli (Brazil), H. Guimarães, G. Sandri, A. Ceschin - Departamento de Engenharia Elétrica da Universidade de Brasília (Brazil)
Pages
1148 - 1150
DOI
10.5162/IMCS2012/P1.8.13
ISBN
978-3-9813484-2-2
Price
free

Abstract

This work consists in a study of an alternative material to be use for the development of ammonia sensors. The humin is extracted from peat with centrifugation of KOH or NaOH solutions. The humin consists basically of carbon. The powder of humin is a porous material, similar to zeolita, and it is partly solubilized in water. The solubilized humin is deposited on a flexible polyester substrate and dried in an oven at 80ºC for 20 minutes. The samples'sensitivity to ammonia vapor was measured using the standard two-temperature method.

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