A5050667816- Metal-Organic Frameworks: Synthesis and Applications
- Membrane Separation and Gas Transport
- Covalent Organic Framework Applications
- Carbon Dioxide Capture Technologies
- Graphene research and applications
- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- CO2 Reduction Techniques and Catalysts
- Inorganic Fluorides and Related Compounds
- Ionic liquids properties and applications
- Mesoporous Materials and Catalysis
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Nanopore and Nanochannel Transport Studies
- Caching and Content Delivery
- Zeolite Catalysis and Synthesis
- Fuel Cells and Related Materials
- Boron and Carbon Nanomaterials Research
- Lignin and Wood Chemistry
- Environmental remediation with nanomaterials
- Adsorption and biosorption for pollutant removal
- Advanced ceramic materials synthesis
- Thermal properties of materials
Friedrich Schiller University Jena
2022-2025
South China University of Technology
2017-2024
Guangzhou University
2023-2024
Xi'an University of Technology
2023
Xi’an University
2023
Abstract Olefin/paraffin separation is an important but challenging and energy-intensive process in petrochemical industry. The realization of carbons with size-exclusion capability highly desirable rarely reported. Herein, we report polydopamine-derived (PDA-Cx, where x refers to the pyrolysis temperature) tailorable sub-5 Å micropore orifices together larger microvoids by one-step pyrolysis. centered at 4.1–4.3 PDA-C800 3.7–4.0 PDA-C900 allow entry olefins while entirely excluding their...
A natural, effective, and inexpensive hindered phenolic antioxidant mixture was prepared by blending lignin into quercetin. The performance of quercetin analyzed determining the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity a low-cost high-efficiency ratio found to be 4:1 (w/w). After UV radiation for 4 h, DPPH quercetin/lignin decreased only 13.8%, while that 42.9% 28.6%, respectively. fluorescence analysis indicated molecules inserted weaken its aggregation form new...
Abstract We introduce a straightforward method for the preparation of novel starch‐based ultramicroporous carbons (SCs) that demonstrate high CH 4 uptake and excellent /N 2 selectivity. These SCs are derived from combination starch 1–6 wt.% acrylic acid, resulting materials amenable to surface cation exchangeability as demonstrated by formation highly dispersed K + in carbon precursors. Following activation, these contain ultramicropores with narrow pore‐size distributions <0.7 nm,...
We developed a novel mechanism to control the ultramicropore size in carbons at sub-angstrom level that enables complete size-sieving of C 3 H 6 /C 8 .
Electrochemical CO2 reduction reaction (ECO2RR) represents a promising approach for attaining neutral carbon cycle and the sustainable production of value-added chemicals. However, fabricating nonprecious metals catalysts with high selectivity within broad potential window excellent stability under tough electrolytic conditions remains great challenge. Herein, we developed an in situ confining strategy to prepare metal–organic frameworks derived N-doped carbon-wrapped nickel nanoparticles...
Abstract Separations of both C 3 alkene/alkane and 4 alkadiene/alkenes are great commercial significance as propylene butadiene represent important feedstock chemicals, but the full extraction them using carbon‐based separating agents has yet to be fully realized. Herein, derived from low‐cost starch precursors, we report a series ultramicroporous starch‐based carbon materials (SC‐M; M = Na, K, Rb), with sub‐Ångstrom tunable ultramicropore apertures separate targeted gases high purity. Among...
Abstract Atomic layer etching (ALE) using the environmentally friendly electronic gas fluoromethane (CH 3 F) is guided for fabricating nanoscale components. The adsorptive purification of CH F provide a viable direction to remove trace amounts impurities produce highly pure (>99.9999%) ALE process. Herein, propane (~100 ppm) in F, we report synergetic thermodynamic and kinetic separation C H 8 /CH over glucose‐derived carbon molecular sieve CMS‐T, (T as pyrolysis temperature). With pore...
Selective separation of industrial important C8 , C6 and C3 hydrocarbon pairs by physisorbents can greatly reduce the energy intensity related to currently used cryogenic distillation techniques. The achievement size-sieving based on carbonaceous materials is desirable, but commonly hindered random structure carbons often with a broad pore size distribution. Herein, pH-regulated pre-condensation strategy was introduced control carbon architecture sp2 /sp3 hybridization precursor. lower pH...
Highly selective separation of alkenes/alkanes at ambient conditions is crucial yet challenging in the petrochemical industry due to their similar physical properties and molecular sizes. The development carbon adsorbents that possess a sieve functionality desirable. In this study, we focus on elucidating effect carbonaceous nanodomain evolution pore sizes for sieving using sucrose-based sieves (SUC-x). Results show nanodomains evolved gradually toward more orderly graphitic layer structure...
High-entropy-alloy nanoparticles (HEA NPs) exhibit promising potential in various catalytic applications, yet a robust synthesis strategy has been elusive. Here, we introduce straightforward and universal method, involving the microexplosion of Leidenfrost droplets housing carbon black metal salt precursors, to fabricate PtRhPdIrRu HEA NPs with size ∼2.3 nm. The accumulated pressure within droplet triggers an intense explosion milliseconds, propelling support rapidly into hot solvent through...
Abstract In nature, organic molecules play a vital role in light harvesting and photosynthesis. However, regarding artificial water splitting, the research focus is primarily on inorganic semiconductors. Although photocatalysts have high structural variability, they tend to exhibit lower quantum efficiencies for splitting than their counterparts. Multicomponent reactions (MCRs) offer an attractive route introduce different functional units into covalent frameworks (COFs) enable...
Abstract Sorption‐based water capture is an attractive solution to provide potable in arid regions. Heteroatom‐decorated microporous carbons with hydrophilic character are promising candidates for adsorption at low humidity, but the strong affinity between polar carbon pore walls and molecules can hinder transport within narrow system. To reduce limitations of mass transfer, C 2 N‐type materials obtained from thermal condensation a molecular hexaazatriphenylene‐hexacarbonitrile (HAT‐CN)...
Recovering light hydrocarbons from natural gas is of great significance in the petrochemical industry. In this work, starch-based microporous carbon materials (SMCs) were prepared using starch as a source and characterized for their pore structure surface chemistry. CH4, C2H6, C3H8 isotherms SMCs determined volumetric method. The breakthrough experiments carried out to evaluate dynamic separation performance. A grand canonical Monte Carlo simulation was conducted reveal adsorption mechanism...
In nature, organic molecules play a vital role in light harvesting and photosynthesis. However, regarding artificial water splitting, the research focus is primarily on inorganic semiconductors. Although photocatalysts have high structural variability, they tend to exhibit lower quantum efficiencies for splitting than their counterparts. Multicomponent reactions (MCRs) offer an attractive route introduce different functional units into covalent frameworks (COFs) enable semiconducting...
Carbon molecular sieves (CMS) with a tunable pore structure hold significant promise for efficient C3H6/C3H8 separation. However, understanding the relationship between precursor's carbon framework and microstructure of carbonized products is still ambiguous requires further investigation. Herein, relative aliphaticity/aromaticity regulated strategy was proposed to tailor skeleton polyamide precursor, aiming fine tune CMS size kinetic diameter C3H6 (4.68 Å) C3H8 (5.11 Å). The precursor...