2007
DOI: 10.1590/s0100-40422007000800035
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Cério: propriedades catalíticas, aplicações tecnológicas e ambientais

Abstract: Recebido em 13/11/06; aceito em 2/3/07; publicado na web em 25/10/07 CERIUM: CATALYTIC PROPERTIES, TECHNOLOGICAL AND ENVIRONMENTAL APPLICATIONS. Cerium based-compounds have great importance in a wide range of technological applications, such as: fuel cell devices development; metallurgic processes, petroleum refining; glass and ceramic production. Recently, its catalytic properties have been also explored for environmental applications, especially those to prevent or to control atmospheric and water pollution.… Show more

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Cited by 20 publications
(12 citation statements)
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“…(b) We have selected Ce 3+ as the metallic node because (i) [Ce 2 (pydc) 3 (H 2 O) 2 ]22b is a secondary phase that appears in the preparation of microporous [Ce 2 (pydc) 2 (Hpydc)(H 2 O) 2 ]Cl · (9 + y )H 2 O18g and, more importantly, (ii) Ce 3+ compounds find countless technological applications in photoluminescent materials, fuel cells, glass, the ceramic and metallurgic industries, catalytic materials, and several others 24…”
Section: Resultsmentioning
confidence: 99%
“…(b) We have selected Ce 3+ as the metallic node because (i) [Ce 2 (pydc) 3 (H 2 O) 2 ]22b is a secondary phase that appears in the preparation of microporous [Ce 2 (pydc) 2 (Hpydc)(H 2 O) 2 ]Cl · (9 + y )H 2 O18g and, more importantly, (ii) Ce 3+ compounds find countless technological applications in photoluminescent materials, fuel cells, glass, the ceramic and metallurgic industries, catalytic materials, and several others 24…”
Section: Resultsmentioning
confidence: 99%
“…The synthesis of the nanorods was performed using the hydrothermal method, according to studies. 18,20,31,32 In this synthesis, cerium nitrate(III) hexahydrate (Ce(NO 3 ) 3 .6H 2 O) was used as a metallic precursor and sodium hydroxide as an oxidizing agent in a ratio of 1:5. Thus, 4.125 g of Ce(NO 3 ) 3 .6H 2 O and 19.2 g of NaOH were dissolved in 40 mL of deionized water, with constant stirring for 30 min.…”
Section: Preparation Of the Electrocatalystsmentioning
confidence: 99%
“…Tem se tornado bastante comum a combinação de diversos óxidos visando à modificação de alguma propriedade específica de interesse para determinada aplicação tecnológica, sendo que esses compostos adicionados podem atuar como promotores texturais ou estruturais. O óxido de cério tem mostrado atividade em um grande número de reações catalíticas, assim como os óxidos de ferro, onde se destacam as reações em sistemas de depuração de gases de exaustão em automóveis e em reações fotocatalíticas [2]. Neste contexto, mostra-se interessante avaliar as propriedades texturais e estruturais de hematitas, quando são adicionados à sua estrutura, diferentes teores de cério visando avaliar suas potenciais aplicações em diversas reações catalíticas.…”
Section: Introductionunclassified