| Автор | Yen Quach, Thi Hoang |
| Автор | Nguyet Tran, Thi Minh |
| Автор | Chi Tran, Que |
| Автор | Trung Nguyen, Quoc |
| Автор | Toan Nguyen, Thi |
| Автор | Khuong Le, Dang |
| Дата выпуска | 2011-12-01 |
| dc.description | Perovskite-type oxides La<sub>0.9</sub>M<sub>0.1</sub>CoO<sub>3</sub> (M=K/Na/Li) were prepared by a citrate sol–gel method. These oxides were characterized by x-ray diffraction analysis (XRD), a scanning electron microscope (SEM) and the N<sub>2</sub> physisorption Brunauer–Emmitt–Teller (BET) method. Their catalytic activity was studied by a constant microflow method for CO- and C<sub>3</sub>H<sub>6</sub>-oxidation and by thermal decomposition of diesel soot. The results show that the obtained perovskite materials have a sphere shape, particles size of about 40–50 nm and surface area from 12.0 to 14.9 m<sup>2</sup> g<sup>−1</sup>. They have high catalytic activities decreasing in the sequence K > Na > Li on conversion CO, C<sub>3</sub>H<sub>6</sub> and diesel soot. The total conversion temperature of CO, C<sub>3</sub>H<sub>6</sub> and diesel soot is 325 °C, 340 °C and 430 °C, respectively. Thus, these catalysts have high applicability in the removal of exhaust gas, especially from diesel engines. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2011 Vietnam Academy of Science & Technology |
| Название | The influence of alkali metal cations in substituted nanostructured LaCoO<sub>3</sub> on oxidation catalytic activity |
| Тип | paper |
| DOI | 10.1088/2043-6262/2/4/045007 |
| Electronic ISSN | 2043-6262 |
| Print ISSN | 2043-6254 |
| Журнал | Advances in Natural Sciences: Nanoscience and Nanotechnology |
| Том | 2 |
| Первая страница | 45007 |
| Последняя страница | 45010 |
| Аффилиация | Yen Quach, Thi Hoang; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam |
| Аффилиация | Nguyet Tran, Thi Minh; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam |
| Аффилиация | Chi Tran, Que; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam |
| Аффилиация | Trung Nguyen, Quoc; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam |
| Аффилиация | Toan Nguyen, Thi; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam |
| Аффилиация | Khuong Le, Dang; Hanoi National University of Education, 136 Xuan Thuy Street, Cau Giay District, Hanoi, Vietnam |
| Выпуск | 4 |
