Ru nanoclusters confined in N, O-codoped porous carbon as robust catalysts for hydrolytic dehydrogenation of NH3BH3

Engineering a hollow bowl-like porous carbon-confined Ru–MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis

“…S26 (ESI †), the energy and temperature oscillate slightly. This indicates that there is no significant structure distortion, verifying that [35][36][37][38][39][40][41][42][43][44] the heterojunction maintains a high stability. By calculating the charge density of the junction between Ru and MgO, it could be determined that the charge of Ru at the interface will be transferred to the O of MgO by about 0.56 electrons, as shown by the charge density differences in Fig.…”

“…S21 (ESI †). [36][37][38][39][40][41][42][43][44][45] This large activity enhancement of Ru-MgO/HBC may result from the effect of good coordination of OH À with the active metal component, establishing an electron-deficient surface for reactant activation. 46,47 Meanwhile, OH À also plays an auxiliary role in lowering the dehydrogenation energy barrier of the B-distal and B-N bond.…”

“…(c) Time dependence of H 2 evolution from NH 3 BH 3 over Ru-MgO/HBC at various NaOH concentrations. (d) Catalytic performance of various catalysts in alkaline solvent, as reported in the literature [35][36][37][38][39][40][41][42][43][44].…”

A Deeper Understanding of H2 Evolution Entirely from Water via Diborane Hydrolysis

“…H 2 production from chemical hydrogen storage materials, such as formic acid (eq 4), − hydrazine hydrate (eq 5), − hydrazine borane (eq 6), − sodium borohydride (eq 7), − dimethylaminoborane (eq 8), − ammonia borane (eq 9), − and tetramethyldisiloxane (eq 10), − has drawn great public attention due to its efficient and safe manufacture, transportation, and storage of H 2 under ambient temperature. The decomposition of formic acid and hydrazine hydrate catalyzed by nanomaterials produced H 2 with both H atoms supplied by themselves (Scheme ).…”