Atomically ordered Rh₂P catalysts anchored within hollow mesoporous carbon for efficient hydrogen production

Abstract

Atomically ordered Rh2P nanocluster encapsulated within a high-surface-area hollow mesoporous carbon nanoreactor is catalytically active for hydrogen production via electrocatalytic hydrogen evolution reaction and room-temperature dehydrogenation of ammonia borane.

Recent progress in porous catalysts for dehydrogenation of ammonia borane

“…The prepared RhNi@NHMCs displayed a high TOF of 1294 mol H 2 mol Rh −1 min −1 and high selectivity for complete H 2 production from AB. Guo et al 151 synthesized atomically ordered Rh 2 P nanoclusters anchored within a hollow mesoporous carbon nanoreactor for fast dehydrogenation of AB. The multiple united effects induced by the atomically ordered Rh 2 P phase and hollow mesoporous carbon nanoreactor rendered the obtained Rh 2 P@HMC catalyst a remarkably enhanced catalytic activity with a high TOF of 939 mol H 2 mol Rh −1 min −1 in AB hydrolysis.…”

Maximizing hydrogen production by AB hydrolysis with Pt@cobalt oxide/N,O-rich carbon and alkaline ultrasonic irradiation

“…22,23 The development of efficient catalysts is essential since the self-hydrolysis of AB is extremely low at room temperature. 24 To boost the hydrolysis rate for AB decomposition, noble metal (e.g., Pt, [25][26][27] Pd, [28][29][30][31][32] Ru, [33][34][35][36] and Rh [37][38][39][40] ) catalysts have been widely studied because of their excellent catalytic activity compared with non-noble metals. [41][42][43] Especially, Pt-based catalysts have been extensively investigated due to their excellent properties toward catalytic AB hydrolysis.…”

“…To boost the hydrolysis rate for AB decomposition, noble metal ( e.g. , Pt, 25–27 Pd, 28–32 Ru, 33–36 and Rh 37–40 ) catalysts have been widely studied because of their excellent catalytic activity compared with non-noble metals. 41–43 Especially, Pt-based catalysts have been extensively investigated due to their excellent properties toward catalytic AB hydrolysis.…”

Efficient Near-Infrared-Activated Photocatalytic Hydrogen Evolution from Ammonia Borane with Core-Shell Upconversion-Semiconductor Hybrid Nanostructures

“…Inspired by the Fujishima Honda Effect reported in 1972 [38], a plethora of semiconductor-based photocatalysts, such as TiO 2 , g-C 3 N 4 , CdS [39], various perovskites [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55], and WO 3 /rGO [56] have been utilized in hydrogen production. Additionally, non-semiconductor catalysts based on metals including platinium [57], rhenium [58], ruthenium [59,60], and iridium [61] have also been used in the catalytic generation of H 2 [62,63]. For these photocatalysts with their light absorption threshold confined in either ultraviolet (UV, 300-400 nm) or visible (VIS, 400-700 nm) region [64], the major limitation is that only UV and/or visible light photons can be utilized, which accounts for 5% and 43% of the full solar spectrum, respectively.…”