Novel synthetic method for the catalytic use of thermally stable zirconia: thermal decomposition of zirconium alkoxides in organic media

AbstractThe effects of physical properties and molecular conformation on the thermal decomposition kinetics of several cyclic nitramines are examined and compared to the decomposition of RDX. The compounds used in the study are: octahydro-1,3,5,7-tetranitro- 1,3,5,7-tetrazocine (HMX), hexahydro-l-nitroso-3,5-dinitro-s-triazine (ONDNTA), 1,3,5- trinitro- 1,3,5-triazacycloheptane (TNCHP), and 2-oxo-1,3,5-trinitro-1,3,5-triazacyclohexane (K6). The decomposition pathways of HMX in the liquid phase are similar to the four parallel decomposition pathways that control the decomposition of RDX in the liquid phase. The products formed during the thermal decomposition of ONDNTA arise from multiple reaction pathways. The identities and temporal behaviors of the ONDNTA decomposition products are discussed. TNCHP is thermally stable in the liquid phase. The decomposition products from TNCHP are formed via multiple reaction pathways. One decomposition pathway for TNCHP is through its mononitroso intermediate. TNCHP does not form a stable product that is analogous to oxy-s-triazine (OST) formed in RDX or the smaller ring fragments formed in the liquid-phase decomposition of HMX. K6 is less thermally stable and the decomposition mechanism is much simpler than that of RDX, HMX and TNCHP. The thermal decomposition of K6 occurs between 150 and 180 °C. The products formed during the decomposition of K6 are mainly CH2O and N2O with minor amounts or HCN, CO, NO, and NO2.

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Hydrolysis of Titanium Alkoxide in Organic Solvent at High Temperatures: A New Synthetic Method for Nanosized, Thermally Stable Titanium(IV) Oxide

Industrial & Engineering Chemistry Research ◽

10.1021/ie9901170 ◽

1999 ◽

Vol 38 (10) ◽

pp. 3925-3931 ◽

Cited By ~ 71

Author(s):

Hiroshi Kominami ◽

Masaaki Kohno ◽

Yoko Takada ◽

Masashi Inoue ◽

Tomoyuki Inui ◽

...

Keyword(s):

Organic Solvent ◽

High Temperatures ◽

Synthetic Method ◽

Titanium Alkoxide ◽

Thermally Stable ◽

Hydrolysis Of

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Novel Synthesis of Thermally Stable, Alumina-modified Titania. Thermal Decomposition of Alkoxides in Organic Solvent.

NIPPON KAGAKU KAISHI ◽

10.1246/nikkashi.2001.179 ◽

2001 ◽

pp. 179-182

Author(s):

Masaaki KOHNO ◽

Toshimi FURUSHIMA ◽

Hiroshi KOMINAMI ◽

Koji KAGAWA ◽

Yoshiya KERA

Keyword(s):

Thermal Decomposition ◽

Organic Solvent ◽

Thermally Stable ◽

Novel Synthesis

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Hybrid materials of Ni NP@MOF prepared by a simple synthetic method

Chemical Communications ◽

10.1039/c5cc04663g ◽

2015 ◽

Vol 51 (62) ◽

pp. 12463-12466 ◽

Cited By ~ 41

Author(s):

Megumi Mukoyoshi ◽

Hirokazu Kobayashi ◽

Kohei Kusada ◽

Mikihiro Hayashi ◽

Teppei Yamada ◽

...

Keyword(s):

Thermal Decomposition ◽

Hybrid Materials ◽

Synthetic Method

We demonstrate a novel, facile synthetic method for metal (Ni) NPs in a MOF using the partial thermal decomposition of nickel(ii) 2,5-dihydroxyterephthalate (Ni-MOF-74).

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