期刊
MATERIALS RESEARCH EXPRESS
卷 5, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/aab4e7
关键词
Porous MgCo2O4; oxalate precursor; ammonium perchlorate; catalytic performances
资金
- National Natural Science Foundation of China [51104121, 51374174]
- Scientific and Technological Research Program of Chongqing Municipal Education Commission [KJ1600926]
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2016jcyjA0438, cstc2014jcyjA20008]
- China Postdoctoral Science Foundation [2016M592637, 2017T100676]
- Postdoctoral Science Special Foundation of Chongqing [Xm2016072]
- Scientific Research Foundation of Chongqing University of Technology [2015ZD24, 2015XH21]
In this paper, porous MgCo2O4 with rod-like morphology was successfully synthesized through the thermal treatment of metal oxalates precursor originated by the reaction of metal sulfates and oxalic acid, without the addition of other additives. The porous rod-like MgCo2O4, with a diameter of several hundred nanometers and a length of several micrometers, was formed through the agglomeration of numerous crystalline grains sized in 10-25 nm. Its catalytic effect on ammonium perchlorate (AP) thermal decomposition was evaluated using differential scanning calorimetry (DSC) techniques. It was found that the pyrolysis temperature of AP reduced by 129 degrees C and the heat release increased more than 3.19-fold with a 2 wt% addition of MgCo2O4. Meanwhile, the addition of MgCo2O4 resulted in an AP decomposition activation energy reduction from 216 kJ mol(-1) to 155 kJ mol(-1), calculated using the Kissinger correlation. This study provides new insights into the design and development of high performance catalysts for AP thermal decomposition.
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