4.7 Article

Efficient epoxidation of styrene within pickering emulsion-based compartmentalized microreactors

Related references

Note: Only part of the references are listed.
Article Energy & Fuels

Novel photic and magnetic double responsive Pickering interfacial solid catalysts for biodiesel production

Xiaotong Lu et al.

Summary: The study aims to prepare novel Pickering interfacial solid catalysts for efficient and environmentally benign biodiesel production. The P[3SPA-2DABCO]@SiO2@Fe3O4 catalyst shows excellent catalytic performance, stabilizing soybean oil-in-methanol Pickering emulsion and achieving a biodiesel yield of 98.2% at 60 degrees C. The double responsive solid catalyst can be easily separated and retains superior catalytic activity after 6 cycles.
Article Chemistry, Physical

Oxygen vacancy engineering of calcium cobaltate: A nitrogen fixation electrocatalyst at ambient condition in neutral electrolyte

Xinyu Chen et al.

Summary: The team synthesized a calcium metalate catalyst CaCoOx with oxygen vacancies for NRR electrocatalysis, achieving a nitrogen conversion to ammonia yield of 16.25 mu g center dot h(-1)center dot mg(cat)(-1) and a Faraday efficiency of 20.51% under optimal conditions. The catalyst demonstrated good stability and recyclability, opening up possibilities for the development of inexpensive transition metal electrocatalysts for nitrogen reduction.

NANO RESEARCH (2021)

Article Chemistry, Multidisciplinary

Overall Oxygen Electrocatalysis on Nitrogen-Modified Carbon Catalysts: Identification of Active Sites and In Situ Observation of Reactive Intermediates

Yangming Lin et al.

Summary: This study investigates the role of different nitrogen groups in nitrogen-modified carbon catalysts in ORR and OER. By using seven aromatic molecules as models, the research monitors the evolution of active sites and key adsorbed intermediate products such as O-2 and OOH* through in situ spectroscopy.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Responsive Emulsions for Sequential Multienzyme Cascades

Zhiyong Sun et al.

Summary: The novel approach of multi-enzyme cascade biocatalysis utilizes a multi-responsive emulsion to achieve high reactivity, individual optimal conditions for each enzyme, and high overall conversion. Furthermore, the multi-responsiveness of the emulsion facilitates the easy and separate yielding/recycling of products, polymers, and active enzymes, allowing for scalability with good yield.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Bifunctional Janus Silica Spheres for Pickering Interfacial Tandem Catalysis

Fuqiang Chang et al.

Summary: This study presents a new strategy for antagonistic catalyst compartmentalization by synthesizing bifunctional Janus catalyst particles and applying them as acid-base catalysts in oil/water emulsions. The Janus particles were successfully used in biphasic Pickering interfacial catalysis for the tandem dehydration-Knoevenagel condensation of fructose to 5-HMF-DEM, demonstrating the advantage of rapid extraction of 5-HMF in acidic media.

CHEMSUSCHEM (2021)

Article Chemistry, Physical

Highly Selective Catalysis at the Liquid-Liquid Interface Microregion

Yabin Zhang et al.

Summary: Liquid-liquid interfaces have the potential to regulate chemical reactions selectivity, and a strategy based on this interface was used to boost catalytic selectivity by assembling tubular catalyst particles at the inner interfacial layer, resulting in unexpectedly high selectivity for C=O hydrogenation.

ACS CATALYSIS (2021)

Article Chemistry, Physical

Magnetic Nanoparticles with In Situ Surface Growing Polymeric Brushes as Reactive Pickering Interfacial Catalysts for Biphasic Reactions

Jun Tang et al.

Summary: This research focuses on the intensification of catalytic reactions and droplet manipulation in a liquid-liquid biphasic system. Surface engineering of magnetic materials is used to design magnetic Pickering interfacial catalysts (MPICs), bridging the gap between homogeneous and heterogeneous catalysis. The study demonstrates that emulsion catalysis in a biphasic reaction system outperforms unemulsified systems, showcasing the enhancement effect of the Pickering emulsion microenvironment.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Article Chemistry, Physical

Synergistic catalysis by Mn promoted ceria for molecular oxygen assisted epoxidation

Shanka Dissanayake et al.

Summary: Mesoporous manganese doped cerium oxide catalysts prepared by inverse micelle method show superior activity in epoxidation of alkenes, with high conversion rate and selectivity. The high catalytic activity can be attributed to the specific fluorite crystal structure, high oxygen mobility, and the unique mechanism involving in situ generated reactive oxygen species.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Multidisciplinary

Pickering-Droplet-Derived MOF Microreactors for Continuous-Flow Biocatalysis with Size Selectivity

Danping Tian et al.

Summary: The study introduces a method to fabricate enzymatic microreactors with spatially controlled reactivity and molecular sieving ability, showcasing their potential in synthetic protocellular systems and biotechnology. The enzymatic microreactors exhibit excellent size selectivity, biomimetic microenvironment, long-term stability, and customizable catalytic efficiency through engineering of the outer MOF layer and interior environments for the enzymes.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Chemistry, Physical

Jahn-Teller distortion assisted interstitial nitrogen engineering: enhanced oxygen dehydrogenation activity of N-doped MnxCo3-xO4 hierarchical micro-nano particles

Yangxin Jin et al.

Summary: In this study, a nitrogen-doped transition metal oxide catalyst with abundant oxygen vacancies was successfully prepared through interstitial nitrogen engineering, which demonstrated high catalytic activity for the aerobic dehydrogenation coupling reaction of aromatic amines at low temperature. By increasing the oxygen vacancies and oxygen mobility, the catalyst showed enhanced catalytic performance, highlighting an effective strategy for promoting oxidation reactions.

NANO RESEARCH (2021)

Article Multidisciplinary Sciences

A three-tiered colloidosomal microreactor for continuous flow catalysis

Hua Wu et al.

Summary: The authors presented a rational design of three-tiered colloidosomes via the Pickering emulsion process for accelerating lipase-catalyzed reactions. These integrative structures can serve as biomimetic microreactors for catalytic reactions by compartmentalizing biological species.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Multidisciplinary

Pickering Droplet-Derived Silica Microreactors with a Biomimetic Aqueous Environment for Continuous-Flow Enzymatic Reactions

Yabin Zhang et al.

Summary: This study presents a method for constructing silica microreactors with a biologically-friendly environment, enabling long-term continuous-flow enzymatic reactions with enhanced catalysis efficiency and stability. By designing the dimensions and compactness of the microreactors, the catalytic efficiency can be modulated to achieve controllable catalytic reactions at a microscale level.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

Article Nanoscience & Nanotechnology

Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

Shouxiang Ding et al.

Summary: This study demonstrates the combined use of defect engineering and interfacial optimization to improve the rate capability and cycling stability of MnO2 cathodes for AZIBs. The synthesized beta-MnO2 with abundant oxygen vacancies and graphene oxide wrapping shows superior performance, outperforming state-of-the-art cathodes even after 2000 cycles. The direct interaction between surface oxygen vacancies and the graphene oxide coating layer is identified as a key factor for the enhanced performance.

NANO-MICRO LETTERS (2021)

Article Chemistry, Multidisciplinary

Engineering proteinaceous colloidosomes as enzyme carriers for efficient and recyclable Pickering interfacial biocatalysis

Hang Jiang et al.

Summary: By developing hydrophobized proteinaceous colloidosomes with magnetic-responsiveness as both enzyme carrier and emulsifier, a breakthrough in protein-based w/o Pickering bioconversion is achieved, showing superior catalytic activity and sustainable reusability.

CHEMICAL SCIENCE (2021)

Article Chemistry, Physical

Manganese-doped CeO2 nanocubes as highly efficient catalysts for styrene epoxidation with TBHP

Yong Zhang et al.

APPLIED SURFACE SCIENCE (2019)

Article Chemistry, Multidisciplinary

Micrometer-Sized Water Droplets Induce Spontaneous Reduction

Jae Kyoo Lee et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

Construction of Highly Efficient 3D/2D MnO2/g-C3N4 Nanocomposite in the Epoxidation of Styrene with TBHP

Yong Zhang et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

Review Chemistry, Multidisciplinary

Recent Developments in Heterogeneous Catalyzed Epoxidation of Styrene to Styrene Oxide

Manohar Singh Batra et al.

CHEMISTRYSELECT (2019)

Article Chemistry, Inorganic & Nuclear

An amphiphilic organosilicon framework (AOF): a new solid Pickering catalyst carrier

Honghao Yu et al.

INORGANIC CHEMISTRY FRONTIERS (2019)

Article Chemistry, Multidisciplinary

Integration of yolk-shell units into a robust and highly reactive nanoreactor: a platform for cascade reactions

Yingchun Guo et al.

CHEMICAL COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

An amphiphilic composite material of titanosilicate@mesosilica/carbon as a Pickering catalyst

Yu Ding et al.

CHEMICAL COMMUNICATIONS (2018)

Article Chemistry, Multidisciplinary

Nanomixing Effects in Glycerol/Dodecanol Pickering Emulsions for Interfacial Catalysis

Guolin Zhao et al.

LANGMUIR (2018)

Article Chemistry, Applied

Confinement of Mn3+ redox sites in Mn-KIT-6 and its catalytic activity for styrene epoxidation

Nilamadanthai Anbazhagan et al.

MICROPOROUS AND MESOPOROUS MATERIALS (2017)

Review Chemistry, Multidisciplinary

Superoxide Ion: Generation and Chemical Implications

Maan Hayyan et al.

CHEMICAL REVIEWS (2016)

Article Chemistry, Multidisciplinary

Compartmentalization of Incompatible Reagents within Pickering Emulsion Droplets for One-Pot Cascade Reactions

Hengquan Yang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

Article Multidisciplinary Sciences

Probing Defects in Nitrogen-Doped Cu2O

Junqiang Li et al.

SCIENTIFIC REPORTS (2014)

Article Chemistry, Multidisciplinary

One-pot hydrothermal synthesis of β-MnO2 crystals and their magnetic properties

Peng Yu et al.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS (2013)

Article Chemistry, Physical

Facile synthesis of mesoporous Mn3O4 nanotubes and their excellent performance for lithium-ion batteries

Zhongchao Bai et al.

JOURNAL OF MATERIALS CHEMISTRY A (2013)

Article Multidisciplinary Sciences

Bronsted basicity of the air-water interface

Himanshu Mishra et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2012)

Review Chemistry, Multidisciplinary

Metal-catalyzed epoxidations of alkenes with hydrogen peroxide

BS Lane et al.

CHEMICAL REVIEWS (2003)