Abstract:
Dehydrogenation of formic acid (FA) has been well recognized as one of the most promising hydrogen carriers. Herein, we synthesized an immobilized PN3P-Ir pincer catalyst (2) supported onto KCC-1, a 3D fibrous silica nanosphere with a high surface area and a tetracoordinate aluminum site. The catalytic performance of 2 toward FA dehydrogenation was investigated. The choice of cesium formate (CsO2CH) was found to be crucial as at 80-90 °C, CsO2CH could act as a molten matrix to serve as both the solvent and basic additive. Remarkable reactivities under neat conditions were achieved with a TOF of 13,290 h-1 and a TON up to 540,000, a significant improvement from its homogenous catalyst counterpart, PN3P-IrH3 (1), under the same experimental conditions with a TOF of 5,700 h-1 and a TON up to 260,000.
Bio:
Lujain is a PhD student in Chemistry supervised by Prof. Kuo-Wei Huang, currently working on PN3P pincer complexes and homogenization of pincer complexes on metal oxide support via Surface Organometallic Chemistry (SOMC) procedures and protocols. These immobilized catalysts are used as heterogeneous catalysts for formic acid dehydrogenation reactions.
She got a master's degree from KAUST in Surface Organometallic Chemistry (SOMC) and heterogeneous catalysis in Prof. Jean-Marie Basset’s group.