Lee, Jin Hee Ryu, Jaeyune Kim, Jin Young Nam, Suk-Woo Han, Jong Hee Lim, Tae-Hoon Gautam, Sanjeev Chae, Keun Hwa Yoon, Chang Won 2024-01-20T09:31:13Z 2024-01-20T09:31:13Z 2021-09-04 2014-07-07 2050-7488 https://pubs.kist.re.kr/handle/201004/126598 Reversible, carbon dioxide mediated chemical hydrogen storage was first demonstrated using a heterogeneous Pd catalyst supported on mesoporous graphitic carbon nitride (Pd/mpg-C3N4). The Pd nanoparticles were found to be uniformly dispersed onto mpg-C3N4 with an average size of 1.7 nm without any agglomeration and further exhibit superior activity for the dehydrogenation of formic acid with a turnover frequency of 144 h(-1) even in the absence of external bases at room temperature. Initial DFT studies suggest that basic sites located at the mpg-C3N4 support play synergetic roles in stabilizing reduced Pd nanoparticles without any surfactant as well as in initiating H-2-release by deprotonation of formic acid, and these potential interactions were further confirmed by X-ray absorption near edge structure (XANES). Along with dehydrogenation. Pd/mpg-C3N4 also proves to catalyze the regeneration of formic acid via CO2 hydrogenation. The governing factors of CO2 hydrogenation are further elucidated to increase the quantity of the desired formic acid with high selectivity. English ROYAL SOC CHEMISTRY FORMIC-ACID DECOMPOSITION METAL-ORGANIC FRAMEWORKS ROOM-TEMPERATURE AMMONIA-BORANE ALLOY NANOPARTICLES EFFICIENT CATALYST HIGHLY EFFICIENT IRON CATALYST GENERATION DEHYDROGENATION Carbon dioxide mediated, reversible chemical hydrogen storage using a Pd nanocatalyst supported on mesoporous graphitic carbon nitride Article 10.1039/c4ta01133c 1 JOURNAL OF MATERIALS CHEMISTRY A, v.2, no.25, pp.9490 - 9495 JOURNAL OF MATERIALS CHEMISTRY A 2 25 9490 9495 scie scopus 000337774100009 2-s2.0-84902682577 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article FORMIC-ACID DECOMPOSITION METAL-ORGANIC FRAMEWORKS ROOM-TEMPERATURE AMMONIA-BORANE ALLOY NANOPARTICLES EFFICIENT CATALYST HIGHLY EFFICIENT IRON CATALYST GENERATION DEHYDROGENATION Carbon dioxide Hydrogen storage Pd catalyst carbon nitride Formic acid Formic acid synthesis Dehydrogenation