A Resol‐Assisted Cationic Coordinative Co‐assembly Approach to Mesoporous ABO₃ Perovskite Oxides with Rich Oxygen Vacancy for Enhanced Hydrogenation of Furfural to Furfuryl Alcohol

Abstract

It is a challenge to obtain ABO3 perovskite oxides with favorable crystal phase and well‐defined porous structure via existing approaches. Here, we design an effective and versatile strategy to construct mesoporous ABO3 perovskite oxides with functionalized nanocrystal frameworks and abundant oxygen vacancy sites via a resol‐assisted cationic coordinative co‐assembly approach. The as‐prepared oxygen vacancy‐rich mesoporous LaMnO3 as heterogeneous catalyst exhibits remarkable catalytic activity and stability for hydrogenation of furfural to furfuryl alcohol, including over 99 % conversion and 96 % selectivity. Combined with density functional theory calculation, the catalytic mechanism is elucidated, revealing that porous LaMnO3 nanocrystal framework is conducive to expose oxygen deficiency sites, which can facilitate the interaction between catalyst surface and catalytic substrate, leading to lower barrier in hydrogenation process.

Recent advances in the catalytic transfer hydrogenation of furfural to furfuryl alcohol over heterogeneous catalysts

“…10). 37 The two key processes, citrate coordination and resol co-assembly, inhibited phase separation and maintained the mesoporous structure of the perovskite oxides. The O V -rich meso -LMO (LaMnO 3 ) had high crystallinity, a well-defined porous structure, and a large proportion of oxygen vacancies with an adsorbed oxygen species/lattice oxygen species ratio of 1.20.…”

“…Catalyst design and exploration in this area have been hot topics in the last months. 36–39 Thus, in this paper, recent progress in the CTH of FF to FFA has been systematically summarized and discussed, and some potential research trends for the future have been proposed. As alcohols are the most common H donors, research in this area has been specifically highlighted.…”

Regulating the Electronic Configuration of Supported Iron Nanoparticles for Electrochemical Catalytic Nitrogen Fixation

“…In response to this issue, ambient nitrogen reduction for ammonia synthesis (e.g., electrocatalysis and photocatalysis), combing with renewable energy, which is potentially featured with energy‐saving and zero‐emission characteristics, has attracted increasing attention recently. [ 8–12 ]…”

“…and photocatalysis), combing with renewable energy, which is potentially featured with energy-saving and zero-emission characteristics, has attracted increasing attention recently. [8][9][10][11][12] Especially, the electrocatalytic nitrogen reduction reaction (eNRR) involves a simple process to directly reduce nitrogen (N 2 ) molecules and yield ammonia in an aqueous solution and under ambient conditions, which is exceptionally energyefficient, eco-friendly, and sustainable. [13] Similar to the H-B process, eNRR inherits the high kinetic barrier for nitrogen activation.…”

Hollow Mesoporous Nanoreactors with Encaged PtSn Alloy Nanoparticles for Selective Hydrogenation of Furfural to Furfuryl Alcohol

“…Transformation of furfural, a renewable platform molecule derived from lignocellulose, − can obtain various valuable chemicals used in fine chemistry and biofuel and pharmaceutical industries. , Among its numerous applications, selective hydrogenation of furfural to furfuryl alcohol accounts for the biggest percentage of furfural consumption . However, relative to CO bonds, CC bonds of furfural molecules are thermodynamically easier to hydrogenate, , resulting in serious side reactions during furfural hydrogenation .…”