Temperature-programmed desorption of NO adsorbed on Mn2O3 and Mn3O4

Optimization of the combustion synthesis towards efficient LaMnO3+y catalysts in methane oxidation

“…The profiles clearly show that lanthanum manganites can desorb different oxygen species at a temperature ranging from 90 to almost 900 • C. A small desorption due to very mobile oxygen species is observed from 90 to 350 • C for all the samples. Increasing the temperature, three main areas of oxygen loss can be distinguished, with onset desorption temperature at about 400-430 • C, 520-580 • C and 700 • C. As thoroughly discussed in many other works [30][31][32][33][34][35][36][37][38][39][40][41], these regions are generally referred to as being from the so-called ␣-and ␤-oxygen. According to Royer et al [33] two subgroups of ␣-species were noted.…”

Shape-controlled synthesis of Mn3O4 nanocrystals and their catalysis of the degradation of methylene blue

“…Mn 3 O 4 , one of the most stable oxides of manganese, has tremendous potential in a large number of applications, such as catalysis [1][2][3][4][5][6], electrode materials [7,8], and magnetic storage devices [9]. In particular, materials fabricated on a nanoscale can exhibit better phonic, optical, magnetic, thermal, and electrical properties than bulk materials.…”

Catalytic activities and surface properties of zeolite-supported molybdenum nitrides for NO reduction with H2

“…One of the approaches is to convert NO x to nonpoisonous N 2 via catalytic decomposition and/or reduction [1,2]. There are recent reports on the development of a new generation of catalysts [3,4]. Due to the catalytic properties being similar to those of Group VIII metals, early transition metal nitrides have been tested for a number of catalytic reactions [5][6][7][8][9][10][11][12][13] and some have demonstrated strong potential use in catalytic NO x decomposition and reduction processes [14][15][16][17][18].…”