Yuan Ma

ORCID: 0000-0002-5982-8860
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About
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Research Areas
  • Advanced Photocatalysis Techniques
  • Photonic and Optical Devices
  • Ionic liquids properties and applications
  • Graphene research and applications
  • Mechanical and Optical Resonators
  • Advanced MEMS and NEMS Technologies
  • Carbon dioxide utilization in catalysis
  • Corrosion Behavior and Inhibition
  • Metal and Thin Film Mechanics
  • Hydrogen embrittlement and corrosion behaviors in metals
  • CO2 Reduction Techniques and Catalysts
  • Perovskite Materials and Applications
  • Catalytic Processes in Materials Science
  • Force Microscopy Techniques and Applications
  • Advanced Chemical Physics Studies
  • Polymer composites and self-healing
  • Plasmonic and Surface Plasmon Research
  • Polymer Nanocomposites and Properties
  • Metal-Organic Frameworks: Synthesis and Applications
  • Thermochemical Biomass Conversion Processes
  • 2D Materials and Applications
  • Semiconductor Lasers and Optical Devices
  • Catalysis and Oxidation Reactions
  • Silicone and Siloxane Chemistry
  • Nanocomposite Films for Food Packaging

University of Science and Technology Beijing
2017-2024

Northeastern University
2019-2024

University of Jinan
2024

Central South University
2024

Southwest University
2023

Qingdao University of Science and Technology
2021-2023

Xihua University
2008-2023

Universidad del Noreste
2019-2023

China Shenhua Energy (China)
2022

CHN Energy (China)
2022

The construction of stable covalent organic frameworks (COFs) for various applications is highly desirable. Herein, we report the synthesis a novel two-dimensional (2D) porphyrin-based sp2 carbon-conjugated COF (Por-sp2 c-COF), which adopts an eclipsed AA stacking structure with Brunauer-Emmett-Teller surface area 689 m2 g-1 . Owing to C=C linkages, Por-sp2 c-COF shows high chemical stability under conditions, even harsh conditions such as 9 m HCl and NaOH solutions. Interestingly, can be...

10.1002/anie.201902543 article EN Angewandte Chemie International Edition 2019-03-19

Abstract Covalent organic frameworks have recently gained increasing attention in photocatalytic hydrogen generation from water. However, their structure-property-activity relationship, which should be beneficial for the structural design, is still far-away explored. Herein, we report designed synthesis of four isostructural porphyrinic two-dimensional covalent (MPor-DETH-COF, M = H 2 , Co, Ni, Zn) and activity generation. Our results clearly show that all adopt AA stacking structures, with...

10.1038/s41467-021-21527-3 article EN cc-by Nature Communications 2021-03-01

Abstract 2D layered nanomaterials as photocatalysts have attracted much attention in the field of solar hydrogen production due to their unique electronic structure and abundant active sites. Nevertheless, rational design interfacial regulation Z‐scheme heterojunction are still challenging. Herein, an ultrathin ZnIn 2 S 4 /g‐C 3 N is precisely constructed via in‐situ growth on g‐C . By carefully regulating interface heterojunction, evolution performance can be greatly improved. The optimized...

10.1002/adfm.202111740 article EN Advanced Functional Materials 2021-12-16

Abstract Soft ionic conductors show great promise in multifunctional iontronic devices, but currently utilized gel materials suffer from liquid leakage or evaporation issues. Here, a dry ion‐conducting elastomer with dynamic crosslinking structures is reported. The endow it combined advantageous properties simultaneously, including high conductivity (2.04 × 10 −4 S cm −1 at 25 °C), self‐healing capability (96% healing efficiency), stretchability (563%), and transparency (78%). With this...

10.1002/adma.202101396 article EN Advanced Materials 2021-06-21

Hydrogen is well known to embrittle high-strength steels and impair their corrosion resistance. One of the most attractive methods mitigate hydrogen embrittlement employs nanoprecipitates, which are widely used for strengthening, trap diffuse from enriching at vulnerable locations within materials. However, atomic origin hydrogen-trapping remains elusive, especially in incoherent nanoprecipitates. Here, by combining in-situ scanning Kelvin probe force microscopy aberration-corrected...

10.1038/s41467-022-31665-x article EN cc-by Nature Communications 2022-07-05

Abstract Crystallographic dislocation has been well-known to be one of the major causes responsible for unfavorable carrier dynamics in conventional semiconductor devices. Halide perovskite exhibited promising applications optoelectronic However, how impacts its ‘defects-tolerant’ halide is largely unknown. Here, via a remote epitaxy approach using polar substrates coated with graphene, we synthesize epitaxial controlled density. First-principle calculations and molecular-dynamics...

10.1038/s41467-019-12056-1 article EN cc-by Nature Communications 2019-09-12

Combining high-throughput calculation workflow with a machine learning strategy to accelerate 2D MXene HER catalyst discovery.

10.1039/d0ta06583h article EN Journal of Materials Chemistry A 2020-01-01

A series of novel protic pyrazolium ionic liquids are first synthesized and utilized as catalysts for cycloaddition carbon dioxide epoxides to form cyclic carbonates under metal- solvent-free conditions. The new developed present excellent catalytic activity toward the fixation dioxide. More importantly, they would be prepared by a facile two-step reaction from cheap raw starting materials with yield more than 90%. influence catalyst dosage, temperature, pressure, time on synthesis is...

10.1021/acssuschemeng.7b04051 article EN ACS Sustainable Chemistry & Engineering 2017-12-12

Abstract The construction of stable covalent organic frameworks (COFs) for various applications is highly desirable. Herein, we report the synthesis a novel two‐dimensional (2D) porphyrin‐based sp 2 carbon‐conjugated COF (Por‐sp c‐COF), which adopts an eclipsed AA stacking structure with Brunauer—Emmett—Teller surface area 689 m g −1 . Owing to C=C linkages, Por‐sp c‐COF shows high chemical stability under conditions, even harsh conditions such as 9 HCl and NaOH solutions. Interestingly, can...

10.1002/ange.201902543 article EN Angewandte Chemie 2019-03-19

Semiconductor quantum dots (QDs) in conjunction with non-noble 3d-metal ions (e.g., Fe3+, Co2+, and Ni2+) have emerged as an extremely efficient, facile, cost-effective means of solar-driven hydrogen (H2) evolution. However, the exact structural change active sites under realistic conditions remains elusive, mechanism H2 evolution behind remarkable activity is poorly understood. Here, we successfully track variation catalytic typical photogeneration system consisting CdSe/CdS QDs (i.e., Ni2+...

10.1021/jacs.9b11768 article EN Journal of the American Chemical Society 2020-02-18

Essential oils have unique functional properties, but their environmental sensitivity and poor water solubility limit applications. Therefore, we encapsulated oregano essential oil (OEO) in chitosan nanoparticles (CSNPs) used tripolyphosphate (TPP) as a cross-linking agent to produce (OEO-CSNPs). The optimized conditions obtained using the Box-Behnken design were: concentration of 1.63 mg/mL, TPP 1.27 OEO 0.30%. OEO-CSNPs had particle size 182.77 ± 4.83 nm, polydispersity index (PDI) 0.26...

10.3390/foods11233756 article EN cc-by Foods 2022-11-22

Conversion of CO 2 into useful chemical feedstocks or fuels using solar energy is a promising technology to tackle both climate change and shortage challenges. Here, NiCo alloys derived from AlMg hydrotalcite are introduced for photothermal synergetic conversion with CH 4 an ultrahigh light‐to‐fuel efficiency 33.8% low carbon deposition rate 0.011 g c −1 cat h . The attributed the high absorptance alloys, unique synergistic catalysis active sites, photo‐enhanced reactant activation....

10.1002/solr.202100185 article EN Solar RRL 2021-05-20

The mechanism of coupling reactions CO<sub>2</sub> with PO catalyzed by NEt<sub>n</sub>(HE)<sub>4−n</sub>Br (<italic>n</italic> = 1–4) QM and MM.

10.1039/c6cy01045h article EN Catalysis Science & Technology 2016-01-01
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