1996
DOI: 10.1016/0926-3373(95)00051-8
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Silver-promoted catalyst for removal of nitrogen oxides from emission of diesel engines

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Cited by 92 publications
(29 citation statements)
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“…3,13,18,19 Recently, a considerable number of studies have explored the catalytic properties of silver-zeolite catalysts for the SCR of NOx by hydrocarbons [20][21][22] or alcohols. [23][24][25] Our research group reported that silver-exchanged Na-mordenite catalysts were active and selective in the removal of nitrogen oxides using butane or toluene as reducing agents. 26 In the same way, these materials were able to trap hydrocarbons like toluene at low temperature and to retain them up to 250 °C.…”
Section: Introductionmentioning
confidence: 99%
“…3,13,18,19 Recently, a considerable number of studies have explored the catalytic properties of silver-zeolite catalysts for the SCR of NOx by hydrocarbons [20][21][22] or alcohols. [23][24][25] Our research group reported that silver-exchanged Na-mordenite catalysts were active and selective in the removal of nitrogen oxides using butane or toluene as reducing agents. 26 In the same way, these materials were able to trap hydrocarbons like toluene at low temperature and to retain them up to 250 °C.…”
Section: Introductionmentioning
confidence: 99%
“…Esses últimos são equipados com um sensor de O 2 que opera próximo às condições estequiométricas, oxidando CO e HC e reduzindo os NO X 9,10 , o que não é possível de ocorrer na exaustão diesel, que é sempre oxidante 33,34 . Existem estudos para o desenvolvimento de catalisadores para a redução de NO X na presença de alta concentração de oxigênio ("lean NO X catalysts"), os quais oferecem um meio de reduzir os NO X a N 2 [57][58][59][60][61][62][63][64][65][66] . Entretanto, esses catalisadores apresentam uma estabilidade muito baixa, de cerca de poucas horas, na presença de vapor d'água e SO 2 .…”
Section: Redução Da Emissão De Particulados Diesel Pelo Uso De Tecnolunclassified
“…Silver catalysts, including Ag-mordenite, are found to be active in NO removing from automotive exhausts, a source of serious environmental problems [1,2]. It has been shown that introduction of silver in mordenite leads to formation of silver clusters characterized by absorption bands at 285 and 320 nm [3].…”
mentioning
confidence: 99%