РОССИЙСКАЯ АКАДЕМИЯ НАУК

УРАЛЬСКОЕ ОТДЕЛЕНИЕ

ИНСТИТУТ ХИМИИ TBEPДОГО ТЕЛА
   
| | | | |
| | | |
 07.02.2011   Карта сайта     Language По-русски По-английски
Новые материалы
Экология
Электротехника и обработка материалов
Медицина
Статистика публикаци


07.02.2011





Improve the catalytic activity of α-Fe2O3 particles in decomposition of ammonium perchlorate by coating amorphous carbon on their surface


Yifu Zhanga, Xinghai Liub, Corresponding Author Contact Information, E-mail The Corresponding Author, Jiaorong Niec, Lei Yua, Yalan Zhonga and Chi Huanga, Corresponding Author Contact Information, E-mail The Corresponding Author



a Engineering Research Center of Organosilicon Compound and Material, Ministry of Education of China, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China


b School of Printing and Packaging, Wuhan University, Wuhan 430079, PR China


c Jianghe Chemical Factory of CSSG, Yuan'an 444200, PR China




Received 25 July 2010; 


revised 24 November 2010; 


accepted 1 December 2010. 


Available online 7 December 2010.









Abstract



Sphere- and pod-like α-Fe2O3 particles have been selectively synthesized using NH3·H2O and NaOH solution to adjust the pH value of the designed synthetic system, respectively. The sphere-like α-Fe2O3 particles with diameter about 25 nm on average were encapsulated into carbon shells to fabricate a novel core–shell composite (α-Fe2O3@C) through the coating experiments. The catalytic performance of the products on the thermal decomposition of ammonium perchlorate (AP) was investigated by thermal gravimetric analyzer (TG) and differential thermal analysis (DTA). The thermal decomposition temperatures of AP in the presence of pod-like α-Fe2O3, sphere-like α-Fe2O3 and α-Fe2O3@C are reduced by 72, 81 and 109 °C, respectively, which show that α-Fe2O3@C core–shell composites have higher catalytic activity than that of α-Fe2O3.









Graphical abstract



The catalytic performance of pod-like α-Fe2O3, sphere-like α-Fe2O3 and α-Fe2O3@C on the thermal decomposition of ammonium perchlorate (AP).

Full-size image




Research highlights



► Sphere- and pod-like α-Fe2O3 particles have been selectively synthesized using NH3·H2O and NaOH solution to adjust the pH value. ► A novel core–shell composite (α-Fe2O3@C core–shell structured composite) has been successfully synthesized using sphere-like α-Fe2O3 particles as the cores and glucose as the source of carbon. ► The thermal decomposition temperatures of AP in the presence of pod-like α-Fe2O3, sphere-like α-Fe2O3 and α-Fe2O3@C are reduced by 72, 81 and 109 °C, respectively, which shows that these materials have high catalytic activity.





Дизайн и программирование N-Studio 
А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я
  • Chen Wev .  honorary member of ISSC science council

  • Harton Vladislav Vadim  honorary member of ISSC science council

  • Lichtenstain Alexandr Iosif  honorary member of ISSC science council

  • Novikov Dimirtii Leonid  honorary member of ISSC science council

  • Yakushev Mikhail Vasilii  honorary member of ISSC science council

  • © 2004-2019 ИХТТ УрО РАН
    беременность, мода, красота, здоровье, диеты, женский журнал, здоровье детей, здоровье ребенка, красота и здоровье, жизнь и здоровье, секреты красоты, воспитание ребенка рождение ребенка,пол ребенка,воспитание ребенка,ребенок дошкольного возраста, дети дошкольного возраста,грудной ребенок,обучение ребенка,родить ребенка,загадки для детей,здоровье ребенка,зачатие ребенка,второй ребенок,определение пола ребенка,будущий ребенок медицина, клиники и больницы, болезни, врач, лечение, доктор, наркология, спид, вич, алкоголизм православные знакомства, православный сайт творчeства, православные рассказы, плохие мысли, православные психологи рождение ребенка,пол ребенка,воспитание ребенка,ребенок дошкольного возраста, дети дошкольного возраста,грудной ребенок,обучение ребенка,родить ребенка,загадки для детей,здоровье ребенка,зачатие ребенка,второй ребенок,определение пола ребенка,будущий ребенок