Complex thermal kinetic study of calcium phosphate biomaterial CaHPO4 using the asymmetric deconvolution approach

Hazzat, Mouatamid El; Sifou, Aicha; Arsalane, Saı̈d

doi:10.1007/s10973-022-11229-3

Cited by 5 publications

(7 citation statements)

References 58 publications

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“…In this application, “deconvolution” refers to the resolution of overlapping rate peaks into individual rate peaks that may be assumed to reflect individual response steps [44] . The shoulder peak in AP, AP+BCC, and AP+BCC/rGO was deconvoluted and the average activation energy of the decomposition of various compositions is reported in Figure 10 [45] . The conversion of decomposition of pure AP and NTO was completed within temperatures 571–698 K and 537–549 K, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…[44] The shoulder peak in AP, AP + BCC, and AP + BCC/rGO was deconvoluted and the average activation energy of the decomposition of various compositions is reported in Figure 10. [45] The conversion of decomposition of pure AP and NTO was completed within temperatures 571-698 K and 537-549 K, respectively. Compared to the conversion of pure AP and NTO the conversion of the decomposition of NTO + BCC, NTO + BCC/rGO, AP + BCC, and AP + BCC/rGO was completed at a lower temperature which was also evident from TG analysis.…”

Section: Kinetic Investigationmentioning

confidence: 99%

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Effects of Barium‐Copper‐Cobalt oxide composites supported on reduced graphene oxide in the thermolysis of ammonium perchlorate and 3‐nitro‐1,2,4‐triazol‐5‐one

Dave

Sirach

2023

ChemistrySelect

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Synthesis method of nanocrystalline Barium‐Copper‐Cobalt oxide (BCC) and its composite with reduced graphene oxide (rGO) was provided. The size of nanocrystalline (∼13 nm) materials (BCC and BCC/rGO) was confirmed using powder X‐ray diffraction patterns. The effect of rGO, BCC, and BCC/rGO on the thermal decomposition of 3‐Nitro‐1,2,4‐triazol‐5‐one (NTO) and ammonium perchlorate (AP) was investigated using simultaneous thermal analysis. Non‐isothermal isoconversion method was used to calculate the activation energy of AP and NTO with and without rGO, BCC, and BCC/rGO. The thermal analysis suggests that in the presence of BCC and BCC/rGO, the thermal decomposition exotherm of NTO was lowered to ∼259, and ∼228 °C, respectively, and that of AP was lowered to 355, and 345 °C, respectively. BCC and BCC/rGO exhibit very good catalytic activity for the thermal decomposition of NTO by lowering NTO's activation energy barrier by ∼179 and 261 kJ mol−1, respectively. The activation energy calculations for low thermal decomposition and high thermal decomposition of AP (∼95 kJ mol−1 average) do not provide conclusive evidence to confirm the catalytic influence of BCC and BCC/rGO. The composition NTO+BCC has a lower activation energy barrier (∼121 kJ mol−1) than pure NTO which makes the thermal decomposition of NTO+BCC more favorable than pure NTO making its application in insensitive munitions more favorable. AP+BCC decomposes within a short temperature range and hence, it can be used in solid rocket propellants requiring faster decomposition of AP in place of pure AP.

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Section: Resultsmentioning

confidence: 99%

Section: Kinetic Investigationmentioning

confidence: 99%

Effects of Barium‐Copper‐Cobalt oxide composites supported on reduced graphene oxide in the thermolysis of ammonium perchlorate and 3‐nitro‐1,2,4‐triazol‐5‐one

Dave

Sirach

2023

ChemistrySelect

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“…On further heating, the produced DCPA dehydrates to form calcium diphosphate (Ca 2 P 2 O 7 ; calcium pyrophosphate (CPP)). [17][18][19][20][21][22] Some studies have reported a single-step process of the thermal dehydration of DCPA, 17,21 whereas some others have reported a two-step mass loss process. [18][19][20]22 Hazzat et al explained the cause of the two-step mass loss process and attributed it to the different sizes and morphologies of sample particles in commercially available DCPA.…”

Section: Physical Chemistry Chemical Physics Accepted Manuscriptmentioning

confidence: 99%

“…[17][18][19][20][21][22] Some studies have reported a single-step process of the thermal dehydration of DCPA, 17,21 whereas some others have reported a two-step mass loss process. [18][19][20]22 Hazzat et al explained the cause of the two-step mass loss process and attributed it to the different sizes and morphologies of sample particles in commercially available DCPA. 22 Irrespective of different reaction behaviors, the solid product was identified as γ-CPP.…”

Section: Physical Chemistry Chemical Physics Accepted Manuscriptmentioning

confidence: 99%

“…[18][19][20]22 Hazzat et al explained the cause of the two-step mass loss process and attributed it to the different sizes and morphologies of sample particles in commercially available DCPA. 22 Irrespective of different reaction behaviors, the solid product was identified as γ-CPP. Therefore, the quantitative evaluation of changes in multistep reaction behavior occurring during the thermal dehydration of DCPD and subsequent dehydration of DCPA using an advanced kinetic approach could provide more insight into the complex reaction behaviors of the thermally induced transformations of DCPD.…”

Section: Physical Chemistry Chemical Physics Accepted Manuscriptmentioning

confidence: 99%

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Physico-geometrical kinetic insight into multistep thermal dehydration of calcium hydrogen phosphate dihydrate

Hara

Koga

2023

Phys. Chem. Chem. Phys.

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Thermal dehydration kinetics of 4CaO·5B2O3·7H2O with different phases and morphologies

Wu,

Zhu,

Feng

et al. 2024

Journal of Solid State Chemistry

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Complex thermal kinetic study of calcium phosphate biomaterial CaHPO4 using the asymmetric deconvolution approach

Cited by 5 publications

References 58 publications

Effects of Barium‐Copper‐Cobalt oxide composites supported on reduced graphene oxide in the thermolysis of ammonium perchlorate and 3‐nitro‐1,2,4‐triazol‐5‐one

Effects of Barium‐Copper‐Cobalt oxide composites supported on reduced graphene oxide in the thermolysis of ammonium perchlorate and 3‐nitro‐1,2,4‐triazol‐5‐one

Physico-geometrical kinetic insight into multistep thermal dehydration of calcium hydrogen phosphate dihydrate

Thermal dehydration kinetics of 4CaO·5B2O3·7H2O with different phases and morphologies

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