Mengwei Li

ORCID: 0009-0006-9913-8123
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Graphene research and applications
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Advanced Photocatalysis Techniques
  • Mechanical and Optical Resonators
  • Acoustic Wave Resonator Technologies
  • Fuel Cells and Related Materials
  • Advanced MEMS and NEMS Technologies
  • Nanopore and Nanochannel Transport Studies
  • Catalysis and Oxidation Reactions
  • Anodic Oxide Films and Nanostructures
  • Nanowire Synthesis and Applications
  • Metamaterials and Metasurfaces Applications
  • Supercapacitor Materials and Fabrication
  • CO2 Reduction Techniques and Catalysts
  • 2D Materials and Applications
  • Advanced Antenna and Metasurface Technologies
  • Plasmonic and Surface Plasmon Research
  • Thermal properties of materials
  • Catalysts for Methane Reforming
  • Gas Sensing Nanomaterials and Sensors
  • Antenna Design and Analysis

Beihang University
2024-2025

University of South China
2022-2025

Beijing Institute of Technology
2023-2025

North University of China
2010-2024

Beijing Normal University
2024

Harbin Normal University
2024

Tufts University
2019-2022

Shaanxi University of Science and Technology
2019-2021

Wuhan University
2021

Institute of Microelectronics
2012-2019

Direct conversion of methane into value-added chemicals, such as methanol under mild conditions, is a promising route for industrial applications. In this work, atomically dispersed Rh on TiO2 suspended in an aqueous solution was used the oxidation to methanol. Promoted by copper cations (as co-catalyst) solution, catalysts exhibited high activity and selectivity production using molecular oxygen with presence carbon monoxide at 150 °C reaction pressure 31 bar. Millimole level yields were...

10.1002/anie.202201540 article EN Angewandte Chemie International Edition 2022-02-24

We propose a functionally tunable terahertz (THz) metamaterial absorber, which has the switching performance between broadband-narrowband and dual-broadband near-perfect absorption due to phase transition of Vanadium dioxide (VO

10.3390/mi14010201 article EN cc-by Micromachines 2023-01-13

Constructing electrocatalysts with p-block elements is generally considered rather challenging owing to their closed d shells. Here for the first time, we present a p-block-element bismuth-based (Bi-based) catalyst co-existence of single-atomic Bi sites coordinated oxygen (O) and sulfur (S) atoms nanoclusters (Biclu ) (collectively denoted as BiOSSA /Biclu highly selective reduction reaction (ORR) into hydrogen peroxide (H2 O2 ). As result, gives high H2 selectivity 95 % in rotating...

10.1002/anie.202304488 article EN Angewandte Chemie International Edition 2023-07-03

A three-dimensional N-doped porous carbon nanosheet catalyst cooperated by fluorine and phosphorus atoms was prepared in this work, which showed high oxygen reduction performance 0.1 M KOH a power density of 138 mW cm −2 zinc–air battery.

10.1039/d2ta09792c article EN Journal of Materials Chemistry A 2023-01-01

The application of tandem catalysis is rarely investigated in degrading organic pollutants the environment. Herein, a catalyst on single platinum (Pt) nanoparticles (Pt0 NPs) prepared for sequential degradation formaldehyde (HCHO) to carbon dioxide gas [CO2(g)] at room temperature. synthesis approach includes coating uniform Pt NPs SrBi2Ta2O9 platelets using photoreduction process, followed by calcination sample atmosphere tune partial transformation Pt0 atoms Pt2+ ions catalyst. conversion...

10.1021/acs.est.9b01176 article EN Environmental Science & Technology 2019-03-05

High-performance Fe-based nitrogen-doped carbon oxygen reduction catalysts have been widely reported, but the Fenton reaction faced by such has hindered their practical application in fuel cells. The development of inexpensive, effective, and durable non-Fe electrocatalysts is important for advancing cell technology. In this work, we introduced a molecular coordination chemistry method to synthesize Cu- P-co-doped hierarchical (Cu-P-N-C) (ORR) electrocatalyst pyrolyzing mixture phytate...

10.1039/d4dt03156c article EN Dalton Transactions 2025-01-01

The electrocatalytic two‐electron oxygen reduction reaction (2e‐ ORR) is anticipated to supersede the energy‐intensive and environmentally adverse anthraquinone process for decentralized small‐scale H2O2 production. Designing cost‐effective 2e‐ ORR electrocatalysts with clear structure‐activity relationships neutral media remains challenging. Here, we employ an appropriate method introduce group elements, including O, S, Se, Te, synthesize a series of carbon‐supported transition metal Zn...

10.1002/cctc.202500144 article EN ChemCatChem 2025-03-13

Atomically dispersed Pd/ZnO was synthesized using a facile method. We found that 0.07 wt % Pd isolated and positively charged on ZnO solvothermal By contrast, clusters were formed commercial ZnO, with the difference between two supports residing in their different number of defects surface area. atoms are selective ethanol dehydrogenation reaction to form acetaldehyde H2 exclusively, while decompose CO CH4 as byproducts. Our work proves structure affects selectivity reaction, sites, unlike...

10.1021/acs.iecr.9b05202 article EN publisher-specific-oa Industrial & Engineering Chemistry Research 2020-01-06

Radio-frequency (RF) micro-electro-mechanical-system (MEMS) switches are widely used in communication devices and test instruments. In this paper, we demonstrate the structural design optimization of a novel RF MEMS switch with straight top electrode. The insertion loss, isolation, actuator voltage, stress distribution optimized explored simultaneously by HFSS COMSOL software, taking into account both its mechanical properties. Based on results, was fabricated micromachining process...

10.1063/10.0016903 article EN cc-by Nanotechnology and Precision Engineering 2023-01-30

A new class of chiral N-sulfonyl bisimidazoline (Bim) ligands have been designed, prepared, and applied in Pd(II)-catalyzed asymmetric addition arylboronic acids to isatin-derived N-Boc ketimines. The combination Pd(OCOCF3)2 N-tosyl Bim ligand shows high catalytic activity excellent induction, enabling offer α-tertiary amines with generally good yields enantioselectivity (up 96% yield, ee). This Pd(II) catalysis can tolerate air conditions, providing a practical operationally simple protocol...

10.1021/acs.orglett.8b02374 article EN Organic Letters 2018-09-14

Abstract Constructing electrocatalysts with p ‐block elements is generally considered rather challenging owing to their closed d shells. Here for the first time, we present a ‐block‐element bismuth‐based (Bi‐based) catalyst co‐existence of single‐atomic Bi sites coordinated oxygen (O) and sulfur (S) atoms nanoclusters (Bi clu ) (collectively denoted as BiOS SA /Bi highly selective reduction reaction (ORR) into hydrogen peroxide (H 2 O ). As result, gives high H selectivity 95 % in rotating...

10.1002/ange.202304488 article EN Angewandte Chemie 2023-07-03

This paper presents a controllable method for the high-throughout fabrication of pyramidal silicon nanopore arrays (PSNAs). Using this method, square with an average size 60 nm, rectangular nanopores different length–width ratios, and nanoslits feature sizes as small 13 nm were created. Focused ion beam (FIB) cutting experiments showed that inner structure was exactly pyramidal, which offered unique ionic rectification properties. Moreover, preliminary nanostencil lithography indicated such...

10.1021/jp503203b article EN The Journal of Physical Chemistry C 2014-07-15

In this letter, we report a pressure sensing element based on the graphene–boron nitride (BN) heterostructure. The heterostructure consists of monolayer graphene sandwiched between two layers vertically stacked dielectric BN nanofilms. were used to protect layer from oxidation and pollution. Pressure tests performed investigate characteristics BN–graphene–BN element. A sensitivity 24.85 μV/V/mmHg is achieved in range 130–180 kPa. After exposing ambient environment for 7 days, relative...

10.1063/1.5017079 article EN Applied Physics Letters 2018-04-02
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