TY - JOUR
T1 - Excellent stability of Pd/mpg-C3N4 in catalytic hydrodebenzylation of 2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12- hexaazaisowurtzitane (HBIW)
AU - Liu, Wei
AU - Li, Shengfu
AU - She, Chongchong
AU - Yang, Yeye
AU - Chen, Shusen
AU - Jin, Shaohua
AU - Chen, Kun
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/8/25
Y1 - 2021/8/25
N2 - The low stability and poisoning of the palladium-based catalysts in the debenzylation of HBIW elevated the cost of the hydrogenolysis, and thus restricted the application of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (HNIW). To address this problem, Pd/mpg-C3N4 was prepared by depositing palladium nanoparticles on mesoporous graphite carbon nitride (mpg-C3N4), and used for the catalytic hydrogenolysis in the conversion of HBIW to TADBIW under the atmospheric pressure. After optimizing the reaction condition and the usage amount, the highest yield of 81.7 % was obtained at 45℃ after reaction for 8 h when the ratio of palladium to HBIW was 1%. A yield of 74 % was obtained when the ratio of palladium to HBIW was 0.4 %. More importantly, Pd/mpg-C3N4 can be recycled unprecedently for three times in the conversion of HBIW to TADBIW while preserving the reasonable activity. Such results should benefit for promoting the application of HNIW and also the design of the heterogeneous catalysts for hydrodebenzylation.
AB - The low stability and poisoning of the palladium-based catalysts in the debenzylation of HBIW elevated the cost of the hydrogenolysis, and thus restricted the application of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (HNIW). To address this problem, Pd/mpg-C3N4 was prepared by depositing palladium nanoparticles on mesoporous graphite carbon nitride (mpg-C3N4), and used for the catalytic hydrogenolysis in the conversion of HBIW to TADBIW under the atmospheric pressure. After optimizing the reaction condition and the usage amount, the highest yield of 81.7 % was obtained at 45℃ after reaction for 8 h when the ratio of palladium to HBIW was 1%. A yield of 74 % was obtained when the ratio of palladium to HBIW was 0.4 %. More importantly, Pd/mpg-C3N4 can be recycled unprecedently for three times in the conversion of HBIW to TADBIW while preserving the reasonable activity. Such results should benefit for promoting the application of HNIW and also the design of the heterogeneous catalysts for hydrodebenzylation.
KW - Carbon nitride
KW - HBIW
KW - Hydrodebenzylation
KW - Recycle
UR - http://www.scopus.com/inward/record.url?scp=85114319284&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2021.118310
DO - 10.1016/j.apcata.2021.118310
M3 - Article
AN - SCOPUS:85114319284
SN - 0926-860X
VL - 624
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
M1 - 118310
ER -