Tracking mobile active sites and intermediates in NH3-SCR over zeolite catalysts by impedance-based in situ spectroscopy
Impedance-based in situ spectroscopy allows direct tracking of the mobile active sites and reaction intermediates in NH3-SCR over zeolite catalysts.
Recent advances in the preparation of zeolites for the selective catalytic reduction of NOx in diesel engines
Metal-exchanged zeolites with small pore sizes have attracted much attention in recent years due to their application in the selective catalytic reduction (SCR) of NOx in diesel engines.
Microflow-based dynamic combinatorial chemistry: a microscale synthesis and screening platform for the rapid and accurate identification of bioactive molecules
The first flow-based synthesis and screening platform that integrates both microflow chemistry and protein-directed dynamic combinatorial chemistry into a single modular unit was disclosed and validated by a case study.
Nucleophilic construction of sulfate bonds: simplified access to polysulfates and polysulfonates
Polysulfates and polysulfonates were prepared in a simplified process through the reaction between aryl phenols and aryl fluorosulfates.
Ultra-low formation of octahydrophenazine in the Beckmann rearrangement of cyclohexanone oxime using a microreactor
An ultra-low content of octahydrophenazine (<1 ppm) was reached in the Beckmann rearrangement of cyclohexanone oxime to yield ε-caprolactam.
Pickering gel emulsion stabilized by enzyme immobilized polymeric nanoparticles: a robust and recyclable biocatalyst system for biphasic catalysis
A Pickering interfacial biocatalyst system with a high water/oil volume ratio, super-stability, and easy recyclability is presented for biphasic enzyme catalysis.
Enabling separation intensification of a lanthanide pair with closely similar kinetics based on droplet microfluidics: hydrodynamic and kinetic approaches
Separation intensification of a lanthanide pair obtained through hydrodynamic and kinetic approaches in microfluidics.
Merging of a chemical reaction with microbial metabolism via inverse phase transfer catalysis for efficient production of red Monascus pigments
Cascade reactions, i.e., biosynthesis of OMPs and chemical modification of hydrophobic OMPs with water-soluble MSG, are carried out successfully by IPTC.
Solar-driven co-thermolysis of CO2 and H2O promoted by in situ oxygen removal across a non-stoichiometric ceria membrane
First-time experimental demonstration of simultaneous thermolysis of CO2 and H2O in a solar-driven membrane reactor.
Kinetic study of TBD catalyzed δ-valerolactone polymerization using a gas-driven droplet flow reactor
The reaction kinetics of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) catalyzed δ-valerolactone polymerization was determined using a gas-driven droplet reactor.
Enzyme immobilized millimeter-sized polyHIPE beads with easy separability and recyclability
Enzyme immobilized reusable millimeter-sized beads were prepared through covalently immobilizing Candida antarctica lipase B onto emulsion-templated porous beads.
Heterogeneous palladium-based catalyst promoted reduction of oximes to amines: using H2 at 1 atm in H2O under mild conditions
A highly active palladium-based heterogeneous catalyst with excellent activity for the hydrogenation of oximes to form amines was prepared.
Green and catalyst-free synthesis of deoxyarbutin in continuous-flow
Highly efficient catalyst-free continuous-flow reaction and recycle process for the synthesis of deoxyarbutin.
Synthesis and scale-up of water-soluble quaternary cationic monomers in a continuous flow system
A novel, simple, power-saving and effective method for the synthesis and scale-up of cationic water-soluble polyelectrolytes represented by dimethyldiallylammonium chloride (DMDAAC) with commercially available reagents in a two-step continuous flow system has been developed.
Facile synthesis of lanthanide doped yttria nanophosphors by a simple microplasma-assisted process
An environmentally friendly microplasma-based method is applied to produce crystalline lanthanide doped nanophosphors of controllable photoluminescence properties.
Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD)
In microwave-assisted reactive distillation, the selective heating of the water content at the liquid–vapour interface intensifies the evaporation of water molecules.
Visualization of two-phase reacting flow behavior in a gas–liquid–solid microreactor
The hydrodynamic characteristics of gas–liquid two-phase flow can significantly affect the performance of gas–liquid–solid microreactors.
“Pushing and pulling” the equilibrium through bubble mediated reactive separation for ethyl acetate production
The alcohol is fed as vapor within the bubbles which means alcohol is always in deficit, providing an opportunity to convert an equilibrium limited reaction to nearly irreversible one.
Kinetic and experimental study on the reaction of 3,7-dinitro-1,3,5,7-tetraazabicyclo[3.3.1]nonane in nitric acid
A comprehensive experimental and kinetic study on the reaction of DPT in nitric acid has been performed. The overall yield of the stepwise method for preparing HMX was up to 82.7%, which is a landmark breakthrough for the preparation of HMX from DPT.
Metal-free catalytic oxidation of benzylic alcohols for benzaldehyde
Metal-free catalytic oxidation of benzylic alcohols for benzaldehyde and process intensification by using a rotating packed bed reactor were demonstrated.
Structured ZSM-5 coated SiC foam catalysts for process intensification in catalytic cracking of n-hexane
Structured zeolite/SiC foam catalysts provide alternative solutions to mass and heat transfer limited chemical transformations for process intensification, exemplified by cracking reactions.
Kinetics-assisted discrimination of active sites in Ru catalyzed hydrolytic dehydrogenation of ammonia borane
The kinetics-assisted method is simple yet effective in discriminating Ru edge atoms as the dominant active sites for the reaction.
Numbering-up of capillary microreactors for homogeneous processes and its application in free radical polymerization
Different numbered-up capillary microreactor systems were assembled with commercially available parts for homogeneous processes with significant variation of fluid properties (e.g., free radical polymerization), and statistical analysis was performed to reveal its flow distribution performance.
Solvent-free organocatalytic preparation of cyclic organic carbonates under scalable continuous flow conditions
A solvent-free organocatalyzed process for the transesterification of dimethyl carbonate (DMC) with 1,2-diols under scalable continuous flow conditions.