Direct hydrogenation of CO to C hydrocarbons is very interesting, but achieving this transformation below 200 °C is challenging and seldom reported. Herein, a homogeneous catalytic system was developed composed of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIm][PF ]), Pd(PtBu ) , FeCl , and the ligand 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) for hydrogenation of CO under mild conditions, which resulted in C -C hydrocarbons in selectivities up to 98.3 C-mol % at 180 °C. The combination of [BMIm][PF ]) with Xantphos endowed the Pd-Fe catalysts with the ability of activating CO and H simultaneously via [HPd(PtBu )(BMIm-COO)(BMIm)(PF )Fe] species, thus catalyzing the formation of C -C hydrocarbons through CO hydrogenation. In addition, this catalytic system is stable and recyclable, which may have promising applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/cssc.201901820 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structure and dynamics of piperidinium based amino acid ionic liquids: a computational investigation.
J Mol Model
January 2025
Department of Chemistry, Birla Institute of Technology and Science Pilani - K. K. Birla Goa Campus, Zuarinagar, 403726, Goa, India.
Context: There has been growing interest in amino acid ionic liquids because of their low-cost synthesis and superior biodegradability and biocompatibility compared to traditional ionic liquids. In this study, we have investigated the structure and dynamics of three ionic liquids consisting of N-butyl N-methyl piperidinium [Pip] cation with amino acid (lysine [Lys], histidine [His], and arginine [Arg]) anions. The radial distribution functions, the spatial distribution functions, and the coordination numbers have been used to analyze the structure in the bulk phase.
View Article and Find Full Text PDFLarge stroke radially oriented MXene composite fiber tensile artificial muscles.
Sci Adv
January 2025
School of Chemistry, Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing 100191, China.
Actuation is normally dramatically enhanced by introducing so much yarn fiber twist that the fiber becomes fully coiled. In contrast, we found that usefully high muscle strokes and contractile work capacities can be obtained for non-twisted MXene (TiCT) fibers comprising MXene nanosheets that are stacked in the fiber direction. The MXene fiber artificial muscles are called MFAMs.
View Article and Find Full Text PDFOverscreening-Driven Modulation of Ion Adsorption and Desorption in Conductive MOF Electrodes by Charging Rates.
ACS Nano
January 2025
State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
Elucidating the charging mechanism plays an intrinsic and critical role in the development of high-performance supercapacitors; however, a deep understanding of how this mechanism varies under different charging rates remains challenging. In this study, we investigate the charging mechanism of conductive metal-organic framework (c-MOF) electrodes in ionic liquids, combining electrochemical quartz crystal microbalance and constant-potential molecular dynamics simulations. Both experimental and modeling results reveal a transition of the ion adsorption and desorption modes from anion dominance at low charging rates to ion-exchange governance at high charging rates, significantly reducing the contribution of anions to the capacitance.
View Article and Find Full Text PDFUnlocking Sulfide Solid-State Battery Longevity by the Paradigm of Dual-Functional Plastic Crystal.
ACS Nano
January 2025
Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200438, China.
The utilization of sulfide-based solid electrolytes represents an attractive avenue for high safety and energy density all-solid-state batteries. However, the potential has been impeded by electrochemical and mechanical stability at the interface of oxide cathodes. Plastic crystals, a class of organic materials exhibiting remarkable elasticity, chemical stability, and ionic conductivity, have previously been underutilized due to their susceptibility to dissolution in liquid electrolytes.
View Article and Find Full Text PDFPreparation of Magnetic Hemicellulosic Composite Microspheres and Adsorption of Copper Ions.
Polymers (Basel)
December 2024
Research Centre of Advanced Chemical Engineering, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China.
In this study, the fabrication of magnetic hemicellulosic composite microspheres and the adsorption of copper ions are explored. The microspheres were prepared by the micro-emulsion technique, using FeO nanoparticles and hemicellulose extracted from wheat straw with the ionic liquid B[mim]Cl as a solvent. FeO nanoparticles, synthesized through coprecipitation, were evenly encapsulated within the hemicellulosic microspheres.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!