Chen Ma

ORCID: 0000-0003-1749-1283
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About
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Research Areas
  • Metal-Organic Frameworks: Synthesis and Applications
  • Bone Tissue Engineering Materials
  • Membrane Separation and Gas Transport
  • Corrosion Behavior and Inhibition
  • Covalent Organic Framework Applications
  • Magnesium Alloys: Properties and Applications
  • Membrane Separation Technologies
  • Glass properties and applications
  • Recycling and utilization of industrial and municipal waste in materials production
  • Surface Treatment and Coatings
  • Tribology and Lubrication Engineering
  • Membrane-based Ion Separation Techniques
  • Carbon Dioxide Capture Technologies
  • Orthopaedic implants and arthroplasty
  • Advanced materials and composites
  • High-Temperature Coating Behaviors
  • Solar-Powered Water Purification Methods
  • Gas Sensing Nanomaterials and Sensors
  • Additive Manufacturing Materials and Processes
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Aluminum Alloys Composites Properties
  • Pigment Synthesis and Properties
  • Calcium Carbonate Crystallization and Inhibition
  • Microwave Dielectric Ceramics Synthesis
  • Lubricants and Their Additives

Liaoning University
2024

Changchun University
2024

Shandong Youth University of Political Science
2024

Qilu University of Technology
2024

Shandong Academy of Sciences
2024

Georgia Institute of Technology
2016-2023

Tsinghua University
1995-2023

China Astronaut Research and Training Center
2023

Beihang University
2021

South China University of Technology
2014-2018

Propylene/propane (C3H6/C3H8) separations are performed on a large scale by energy-intensive distillation processes. Membranes based metal-organic framework (MOF) molecular sieves, such as zeolitic imidazolate framework-8 (ZIF-8), offer the potential to perform these at considerably lower cost. However, fabrication of scalable ZIF-8 membranes with high performance elevated pressures and temperatures is challenging. We report high-quality hollow fiber in engineered polymeric fibers via...

10.1021/acsami.6b08801 article EN ACS Applied Materials & Interfaces 2016-09-07

Acid gases such as SO2 and CO2 are present in many environments which the use of nanoporous metal–organic frameworks (MOFs) is envisaged. Among frameworks, zeolitic imidazolate (ZIFs) have been extensively explored membranes or adsorbents. However, there little systematic knowledge effects acid gas exposure on structure ZIFs, particular mechanistic aspects ZIF degradation by well crystal topology linker composition their stability. Here we a generalized quantitative investigation kinetic...

10.1021/acs.chemmater.8b01394 article EN Chemistry of Materials 2018-05-29

Large language model (LLM) based agents have recently attracted much attention from the research and industry communities. Compared with original LLMs, LLM-based are featured in their self-evolving capability, which is basis for solving real-world problems that need long-term complex agent-environment interactions. The key component to support interactions memory of agents. While previous studies proposed many promising mechanisms, they scattered different papers, there lacks a systematical...

10.48550/arxiv.2404.13501 preprint EN arXiv (Cornell University) 2024-04-20

This work investigates adsorptive denitrogenation (ADN) of fuels over metal organic frameworks using a combined experimental/computational approach. MIL-101(Cr) shows high ADN capacities at low concentrations, ascribing to the sites on offering strongest adsorption. Adsorption capacity is higher for basic quinoline than that nonbasic indole due greater adsorption strength (−61.31 kJ/mol) (−38.33 kJ/mol). selectivity various types compounds in follows order organonitrogen ≫ organosulfur >...

10.1021/jp5045817 article EN The Journal of Physical Chemistry C 2014-09-07

This study addresses the challenge of generalizable fabrication metal‐organic framework (particularly zeolitic imidazolate frameworks (ZIF)) hollow fiber membranes that can allow a broader range separations including hydrocarbon (“petrochemical”) as well organics/water (“biorefining”) separations. We report novel strategy combines fluidic membrane processing with chemically inert carbon fibers to produce robust ZIF membranes. Macroporous are successfully fabricated by pyrolytic conversion...

10.1002/admi.201700080 article EN publisher-specific-oa Advanced Materials Interfaces 2017-04-20

With the growing demand for global water environment monitoring, satellite laser altimeters (SLA) have considerable advantages underwater measurements. However, changes in suspended solids, turbidity, and other optical properties of affect propagation SLA pulses water. This can accuracy reliability study analyzed impact quality Oahu Island region Hawaii on un-derwater measurements based ICESat-2, MODIS, Landsat-8, situ data. Underwater photons were obtained from ICESat-2 ATL03 data through...

10.3389/fenvs.2025.1592962 article EN cc-by Frontiers in Environmental Science 2025-04-25

The ultrasonic micro-arc oxidation (UMAO) was used to fabricate ceramic coatings on magnesium alloy. UMAO were produced at 60 W input ultrasonic. effects of the ultrasound microstructure, phase composition, elemental distribution and corrosion resistance extensively investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive spectrometry (EDX) electrochemical workstation. results showed that improved homogeneous micro-porous structure. mainly composed MgO...

10.1007/s40145-013-0064-y article EN cc-by Journal of Advanced Ceramics 2013-09-01

A layer of nickel–phosphorus alloy was electroless plated on the surface microarc oxidised AZ31 magnesium first, and then sealing treatment performed nickel coating using bis-(triethoxysilylpropyl)tetrasulphide silane. Fourier transform infrared spectroscopy, scanning electron microscope (SEM), energy dispersed X-ray spectroscope analyses, electrochemical techniques immersion test were used for analyses morphology structure corrosion resistance samples before after treatment. The results...

10.1179/1743294412y.0000000015 article EN Surface Engineering 2012-05-21

Black liquor (BL) concentration by multieffect evaporation is an extremely energy-intensive operation in the kraft pulping cycle. Membranes can significantly save energy this process, but conventional membranes are strongly challenged low solute rejections and poor stability BL, which a complex mixture containing dissolved lignin, other nonlignin organics, multiple inorganic salts at highly alkaline pH, process temperatures of 70–85 °C. Here we describe detail fabrication, modification,...

10.1021/acssuschemeng.9b03113 article EN ACS Sustainable Chemistry & Engineering 2019-07-30

Novel MIL-101(Cr)@PF sheets with high uptakes for benzene and CO<sub>2</sub>(10.29 2.13 mmol g<sup>−1</sup>at 298 K, respectively) excellent flexibility/mechanical stability were prepared by immobilizing MIL-101(Cr) crystals onto the modified pulp fibers (PFs).

10.1039/c5ra17270e article EN RSC Advances 2015-01-01

In order to improve the corrosion resistance provided by a micro-arc oxidation (MAO) coating on AZ31 magnesium alloy, polypropylene film was prepared its surface. Scanning electron microscopy, energy dispersive X-ray analysis and Fourier transform infrared spectroscopy were used characterise surfaces of coatings. The protective performance coatings evaluated potentiodynamic polarisation curves, electrochemical impedance immersion testing. results show that microdefects MAO can be filled PP...

10.1179/0020296712z.00000000086 article EN Transactions of the IMF 2013-01-16

Metal-organic framework (MOF) membranes have attractive molecular separation properties but require challenging thin-film deposition techniques on expensive/specialty supports to obtain high performance relative conventional polymer membranes. We demonstrate and analyze in detail the new concept of all-nanoporous hybrid (ANHMs), which combines two or more nanoporous materials different morphologies into a single membrane without use any polymeric materials. This allows access previously...

10.1021/acsami.0c06227 article EN ACS Applied Materials & Interfaces 2020-05-28

Landform evolution is mainly to study the coupling model of heat conduction law and landform movement in earth so as obtain distribution millions years ago change this region [1].The problem terrain reconstruction has attracted more geologists mathematicians' attention abroad.From existing studies, it can be seen that involves thermal structure inside earth, river erosion, wind rainfall, impact human factors (such artificial canal excavation, increase decrease vegetation, large population...

10.15244/pjoes/178014 article EN Polish Journal of Environmental Studies 2024-04-12
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