CrPd nanoparticles on NH2-functionalized metal-organic framework as a synergistic catalyst for efficient hydrogen evolution from formic acid

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2019-04, Vol.361, p.953-959
• Main Authors: Gao, Dawei, Wang, Zhili, Wang, Cong, Wang, Liying, Chi, Yue, Wang, Minggang, Zhang, Jingjing, Wu, Chen, Gu, Yan, Wang, Hongli, Zhao, Zhankui
• Format: Article
• Language: English
• Subjects: CrPd bimetallic alloy; Formic acid; Hydrogen generation; Metal-organic framework; MIL-101
• ISSN: 1385-8947; 1873-3212
• DOI: 10.1016/j.cej.2018.12.158

•The Cr0.4Pd0.6/MIL-101-NH2 was achieved by impregnation-reduction method.•The Cr0.4Pd0.6/MIL-101-NH2 is efficient catalyst for FA dehydrogenation.•NH2 has an important effect on the formation of ultrafine size nanoparticles.•NH2 and Cr contribute to the modification of electronic structure of Pd. Ultrafine and well dispersed CrPd nanoparticles are successfully immobilized on NH2-functionalized porous metal-organic framework MIL-101 by a facile sequential impregnation-reduction approach. By virtue of the bimetallic synergistic effect between Cr and Pd and the strong metal-support interaction between CrPd nanoparticles and MIL-101-NH2 support, the resulting Cr0.4Pd0.6/MIL-101-NH2 catalyst exhibits excellent catalytic activity for the generation of hydrogen from formic acid, affording an excellent initial turn over frequency value as high as 2009 mol H2 mol Pd−1 h−1 at 323 K, which is much higher than most of the reported noble metal heterogeneous catalysts for this catalytic reaction under similar conditions.