A good face: The (002) polar facet of platelike ZnO nanoparticles gives a much stronger electronic interaction with Cu than other facets (see picture; CB=conductance band; VB=valence band) and shows higher selectivity in the catalytic hydrogenation CO2 to methanol. This finding provides basis for rational design new nanocatalysts hydrogenation.

Higher alcohol (C2+) synthesis (HAS) from direct CO2 hydrogenation is a promising way to realize the fixation of high-value chemicals; however, identification active catalysts give satisfactory activity and selectivity not yet achieved, let alone elucidation mechanism. Here, we report working catalyst containing Cu-Fe-Zn that can efficiently selectively synthesize C2+ alcohols hydrogenation. The optimized catalyst-encoded Cs-C0.8F1.0Z1.0 exhibits high C2+OH/ROH fraction (weight percent in...

Alkali metal promoters are widely used to modify active sites/interfaces of heterogeneous catalysts for numerous industrial processes. However, the interplay between an alkali and support, a crucial catalytic parameter, has been scarcely investigated in controlling activation behaviors intermediates improving catalysis. Herein, we report that K–ZrO2 interfaces can boost production higher alcohols (HA) from CO2 hydrogenation over amorphous ZrO2-supported K–Cu–Fe catalyst (KFeCu/a-ZrO2). In...

Combined experimental and computational studies show that, upon reducing the diameter of Pt nanoparticles down to 1 nm, a collapse in crystalline structure occurs spontaneously thus-induced quantum size effect causes decline catalytic activity toward hydrogen oxidation reaction (HOR). The conversion from amorphous is rationalized by molecular dynamic simulations; special electronic revealed via density functional calculations. Not only has present work estimated utilization limit for HOR,...

Methanol from CO2: For the hydrogenation of carbon dioxide, a marked increase in methanol selectivity was observed when reaction catalyzed by Cu/rod-shaped ZnO/CdSe with heterojunction structure. Diffusion reflectance, photoluminescence, and ESR spectroscopies clearly indicated an electron density because incorporation CdSe core–shell morphology ZnO (see picture).

Direct CO2 hydrogenation to higher alcohols (HAs) is a promising way achieve the conversion of high-value chemicals. Alkali metals as promoters are generally crucial for Cu–Fe-based catalysts, but their critical role in alcohol synthesis (HAS) still far from clear. Here, we report regulating effect potassium (K) promoter reactant activation perspective on catalysts HAS using situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and chemisorption methods. The optimized...

Cu-based catalysts have been widely studied for direct hydrogenation of CO2 to methanol. Their activities quite depend on the amount exposed active sites (e.g., Cu-oxide interfaces), which can be tuned by particle size as well porosity. Here, we report an active, selective, and stable Cu@ZrOx catalyst with a three-dimensional (3D) porous framework structure via in situ reconstruction size-confined Cu@UiO-66. The optimized CU-0.5-300 shows high methanol selectivity 78.8% at conversion 13.1%...

We report a new Pd@Zn core–shell catalyst that offers significantly higher kinetic barrier to CO/H₂O formation in CO₂ hydrogenation but facilitates CH₃OH production at below 2 MPa with selectivity 70% as compared 10% over Cu catalysts.

Direct CO2 hydrogenation to higher alcohols (HA) is highly attractive but remains a huge challenge due the low HA productivity. Herein we develop active multifunctional catalyst composed of CuZnAl and K-CuMgZnFe oxides which significantly improve space time yield (STY) 106.5 mg gcat–1 h–1 (2.24 mmol h–1) with more than 90% fraction in total alcohol products. A strong synergistic effect occurs when these two components are proper proximity at an appropriate mass ratio, can efficiently...

Spinel ferrite catalysts, recognized for their unique physicochemical properties, have been extensively employed in CO2 hydrogenation reactions. However, the specific roles of different transition metals Na-decorated spinel for...

Ein Katalysator zeigt sich von seiner besten Seite: Die polare (002)-Fläche ZnO-Nanoplättchen geht im Vergleich zu anderen Flächen eine viel stärkere elektronische Wechselwirkung mit Cu-Nanopartikeln ein (siehe Bild; CB=Leitungsband, VB=Valenzband) und bietet höhere Selektivität in der katalytischen Hydrierung CO2 Methanol. Dieser Befund könnte für die Entwicklung neuer Nanokatalysatoren CO2-Hydrierung genutzt werden. Detailed facts of importance to specialist readers are published as...

A stronger metal–support interaction between Pd and plate-form Ga2O3 nanocrystals covered with the predominant 002 surface than other surfaces is found, which gives higher methanol yield in catalytic CO2 hydrogenation.

Abstract In this work, we report a novel strategy to promote the industrial methanol production from CO 2 hydrogenation at low pressure (12 bar) over Pd/ZnO catalyst via introducing light irradiation into modified continuous‐flow fixed‐bed reactor. The yield was significantly enhanced by photothermal synergistic effect and visible confirmed as major contributor (>90 %) due localized surface plasmon resonance of Pd.

Subnanometric PdZn at a defect enriched ZnO/ZIF-8 interface acts as an efficient and selective catalyst for CO₂ hydrogenation to methanol.

Cu@ZIF-8 derived inverse ZnO/Cu with sub-5 nm ZnO acts as an efficient catalyst for CO₂ hydrogenation to methanol.

Cu–ZnO catalysts are widely studied for the direct hydrogenation of CO2 to methanol high activity. However, despite widespread research, promoting intrinsic activity active sites remains a contentious topic. We here report facile strategy manufacture ZnFe2O4 spinel-supported Cu with tuneable size nanoparticles selective synthesis from hydrogenation. The optimized 33Cu/ZnFe-0.5 catalyst exhibits selectivity 71.6% at conversion 9.4% 260 °C and 4.5 MPa. Increasing Zn/Fe ratio decreases same...

A simple but effective method to exfoliate bulk MoS2 in a range of solvents is presented for the preparation colloid flakes consisted one few molecular layers by application ultrasonic treatment N2 H4 . Their high yield solution and exposure more active surface sites allows synthesis corresponding solid catalysts with remarkably activity hydrodeoxygenation 4-methylphenol this can also be applied other two dimensional materials.