MOF-derived AgCo alloy nanoparticle protected by mesoporous carbon as chemoselective catalyst for hydrogenation of citral

Design of Nickel Supported Hierarchical ZSM-5/USY Zeolite Bifunctional Catalysts for One-Pot Menthol Synthesis via Liquid-Phase Citral Hydrogenation

“…Generally, it has been observed that a high yield of menthol production via citral hydrogenation would possibly be produced with the use of selective, active, and recyclable bifunctional (metal–acid) catalysts with selective properties. Various catalytic-material-supported (metals), such as H-MCM-41, Al-MCM-41, H-Y zeolite, beta zeolite, activated carbon, Zr-zeolites, ionic liquid catalysts, nickel-supported metals [ 9 ], MOF-derived AgCo alloy nanoparticles [ 10 ], Pt/Sn [ 11 ], Ru-HY extrudates [ 12 ], Pt/SiO 2 [ 13 ] nano-composite catalysts [ 14 ], ruthenium nanoparticles [ 15 ], and SiO 2 -Al 2 O 3 , have been applied in citral hydrogenation reactions to obtain a higher yield of menthol [ 16 , 17 ]. Conversely, it has been observed that menthol selectivity would possibly be decreased due to the lack of active and selective catalyst designs that occur because of the formation of undesired/unrestrained hydrogenations, as well as cracking side reactions [ 5 , 6 ].…”

Heterojunction of the CoMn Metal–Organic Framework with Lanthanum for Enhanced Oxygen Evolution Reaction

“…These materials present a periodic 3D porous structure with very high porosity, a low density, a large specific surface area, regular pores, topological versatility, and tailor ability. 1,3,13 Many literature reports communicate the application of MOF as a precursor or electrode material for OER. Some MOF heterojunction materials were reported for OER, such as Co 3 O 4 @Co-MOF (η 10 = 277 mV), 35 Ni-MOF@Fe-MOF (η 10 = 265 mV), 36 Fe-MOFs@Ni-MOFs (η 10 = 275 mV), 37 and 3D-Co/NiMOFs@Fe.…”

“…Synthesis of alloy catalysts, utilizing the synergistic effect of the heterojunction structure, and modification of the surface electronic structure of the electrode by doping to accelerate the adsorption/desorption of reactants/products are three strategies to improve intrinsic activity of materials. The applicable methods of increasing active sites include enhancement of the surface area of catalysts, such as nanomaterials, ,− porous materials, , hollow materials, − and core–shell materials, , or employment of the supports with a very high surface area such as copper foam (CF) and nickel foam. In recent years, there has been more research on dual-metal-based catalysts that afford promising advances, including layered double hydroxides (LDHs) such as NiFe LDH, − NiCo LDH, − Co–Fe LDH, − and CoMn LDH. − Yan’s group has synthesized the CoMn LDH@g-C 3 N 4 composite under room temperature using in situ co-precipitation that demonstrates 350 mV overpotential at 40 mA cm –2 current density .…”

“…The unique structure of a metal–organic framework (MOF) offers the potential of an excellent catalyst surface area and conductivity. , MOF materials are a group of compounds composed of metal and organic ligands connected together through covalent or ionic bonding. These materials present a periodic 3D porous structure with very high porosity, a low density, a large specific surface area, regular pores, topological versatility, and tailor ability. ,, Many literature reports communicate the application of MOF as a precursor or electrode material for OER. Some MOF heterojunction materials were reported for OER, such as Co 3 O 4 @Co-MOF ( η 10 = 277 mV), Ni-MOF@Fe-MOF ( η 10 = 265 mV), Fe-MOFs@Ni-MOFs ( η 10 = 275 mV), and 3D-Co/NiMOFs@Fe .…”

Metal-doped mesoporous ZrO2catalyzed chemoselective synthesis of allylic alcohols from Meerwein–Ponndorf–Verley reduction of α,β-unsaturated aldehydes

“…11 The MPV reaction is highly chemoselective to the reduction of CQO bond in the a,b-unsaturated aldehydes but, the hydrogenation of conjugated CQC is preferentially favorable thermodynamically and kinetically over the CQO bond. 3,12 There is an ongoing research effort to develop an efficient catalyst system in MPV reactions. The catalytic performance of metal oxides depends on the surface's structural features or environments, influencing their adsorption strength and activation of the adsorbates.…”