Carbon dioxide (CO2) hydrogenation to ethanol (C2H5OH) is considered a promising way for CO2 conversion and utilization, whereas desirable efficiency remains challenge. Herein, highly active, selective stable C2H5OH was enabled by ordered Pd-Cu nanoparticles (NPs). By tuning the composition of NPs catalyst supports, well optimized with Pd2Cu NPs/P25 exhibiting high selectivity up 92.0% highest turnover frequency 359.0 h-1. Diffuse reflectance infrared Fourier transform spectroscopy results...

Abstract Direct methane conversion (DMC) to high value-added products is of significant importance for the effective utilization CH 4 combat energy crisis. However, there are ongoing challenges in DMC associated with selective C−H activation . The quest high-efficiency catalysts this process limited by current drawbacks including poor activity and low selectivity. Here we show a cerium dioxide (CeO 2 ) nanowires supported rhodium (Rh) single-atom (SAs Rh-CeO NWs) that can serve as catalyst...

High-entropy alloy aerogels (HEAAs) combined with the advantages of high-entropy alloys and are prospective new platforms in catalytic reactions. However, due to differences reduction potentials miscibility behavior different metals, realization HEAAs a single phase is still great challenge. Herein, series fabricated via freeze-thaw method as highly active durable electrocatalysts for carbon dioxide reaction (CO2 RR). Especially, PdCuAuAgBiIn can achieve Faradaic efficiency (FE) C1 products...

To improve the electroactivity and stability of electrocatalysts, various modulation strategies have been applied in nanocatalysts. Among different methods, heteroatom doping has considered as an effective method, which modifies local bonding environments electronic structures. Meanwhile, design novel two-dimensional (2D) nanostructures also offers new opportunities for achieving efficient electrocatalysts. In this work, Mn-doped ultrathin Ru nanosheet branches (RuMn NSBs), a newly reported...

The selective hydrogenation of α, β-unsaturated aldehyde is an extremely important transformation, while developing efficient catalysts with desirable selectivity to highly value-added products challenging, mainly due the coexistence two conjugated unsaturated functional groups. Herein, we report that a series Pt-based zigzag nanowires (ZNWs) can be adopted as controllers for hydrogenation, where excellent alcohol (UOL) (>95%) and high saturated (SA) (>94%) are achieved on PtFe ZNWs PtFeNi...

Abstract Direct ethanol fuel cells (DEFCs) are regarded as an attractive power source with high energy density, bio‐renewability, and convenient storage transportation. However, the anodic reaction of DEFCs, that is, oxidation (EOR), suffers from poor efficiency due to low selectivity CO 2 (C1 pathway) CH 3 COOH (C2 pathway). In this study, selective EOR can be achieved at Rh–SnO interface in SnO –Rh nanosheets (NSs). The optimized catalyst 0.2SnO NSs/C exhibits excellent alkaline...

Abstract Electrocatalytic nitrogen reduction reaction (NRR) is a promising process relative to energy‐intensive Haber–Bosch process. While conventional electrocatalysts underperform with sluggish paths, achieving dissociation of N 2 brings the key challenge for enhancing NRR. This study proposes an effective surface chalcogenation strategy improve NRR performance pristine metal nanocrystals (NCs). Surprisingly, NH 3 yield and Faraday efficiency (FE) (175.6 ± 23.6 mg h –1 g Rh 13.3 0.4%)...

Single-atom site catalysts (SACs) have aroused enormous attention and brought about new opportunities for many applications. Herein, we report a versatile strategy to rhodium (Rh) SAC by facile cation exchange reaction. Remarkably, the Rh modified CuO nanowire arrays on copper foam (Rh SAC-CuO NAs/CF) show unprecedented alkaline oxygen evolution reaction (OER) activity with high current density of 84.5 mA cm-2@1.5 V vs reversible hydrogen electrode (RHE), 9.7 times that Ir/C/CF. More...

The selective hydrogenation of α,β-unsaturated aldehydes to value-added alcohols is a significant process in chemical industry, while the design catalyst with desirable activity, selectivity, and stability challenging. Herein, we construct sesame cake-like Pt3Co nanoparticles (NPs)@Co(OH)2 nanosheets (NSs) architecture strongly coupled Pt3Co–Co(OH)2 interaction for efficient catalysis. intimate accompanied by highly dispersive ultrasmall NPs largely promotes cinnamaldehyde (CAL) conversion...

Direct H2O2 synthesis (DHS) from H2 and O2 is a promising process in industry; however, challenges related to poor selectivity low yield remain. We report here that PdxPb nanorings (NRs) can serve as high-efficiency catalysts for DHS. demonstrate the preferential location of Pb species at edge corner significantly decrease amount low-coordinated Pd atoms NRs, leading an enhanced but reduced degradation rate. Consequently, optimized catalyst gives 170.1 mol kgcat–1 h–1, being one best...

Alkaline water (H2O) electrolysis is currently a commercialized green hydrogen (H2) production technology, yet the unsatisfactory evolution reaction (HER) performance severely limits its energy conversion efficiency and cost reduction. Herein, PtRu2.9Fe0.15Co1.5Ni1.3 high entropy alloys (HEAs) synthesized subsequently exploited electrochemically induced structural oxidation processes to construct self-reconfigurable HEAs, as an efficient alkaline HER catalyst. The optimized...

Ru/CexAly catalysts were synthesized with impregnation of RuCl3 aqueous solution on CexAly (Al2O3–CeO2) and used in 1,2-dichloroethane (1,2-DCE) oxidation. Characterization by X-ray diffraction, Raman, NH3-temperature-programmed desorption (TPD), CO2-TPD, photoelectron spectroscopy, H2-temperature-programmed reduction indicates that CeO2 exists as a form face-centered cubic fluorite structure, whereas the chemical states structure Ru species are dependent Ce content. The reducibility acidity...

The activation and conversion of methane (CH4) is one the most challenging processes, because high chemical inertness CH4 subsequent uncontrollable overoxidation. Herein, we report that CuPdO2/CuO interface in PdxCu1–xO/C can efficiently activate convert to CH3OH using H2O2 or O2 as oxidant under mild conditions, where yield (4076.5 μmol g–1) selectivity (93.9%) optimized Pd0.3Cu0.7O/C are much higher than those PdO/C, CuPdO2/C, mixture CuPdO2/C CuO/C. Structural characterizations mechanism...

PdO/CeO2 nanosheets encapsulated by a monolayer of continuous and dense HZSM-5 zeolite membrane were prepared facile in situ hydrothermal growth process used as highly efficient thermally stable catalyst for methane combustion. Uncoated suffered severe sintering at high temperature or oxygen concentration. However, the encapsulation significantly improved resistance suppressing effects coating agglomeration PdOx nanoparticles, resulting outstanding thermal stability PdO/CeO2. Furthermore,...

Petal and belt-like CeO₂nanosheets are synthesized using an aqueous phase precipitation method under template-free non-hydrothermal conditions exhibit excellent catalytic oxidation performance.

Designing high-performance catalysts with high activity and selectivity toward semihydrogenation of alkynes is one the major goals fine chemical industry, yet full challenges due to difficulties in carbon–carbon triple bond (C≡C) double (C═C) without further hydrogenation. Herein, we demonstrate a two-dimensionality (2D) enhanced interface-confined effect that leads strong interaction between lead (Pb) species ultrathin 2D palladium nanosheets (Pd NSs). As result, catalytic performance...