Mengnan Wang

ORCID: 0000-0003-4422-6979
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About
Contact & Profiles
Research Areas
  • Electrocatalysts for Energy Conversion
  • Supercapacitor Materials and Fabrication
  • Advancements in Battery Materials
  • Fuel Cells and Related Materials
  • Luminescence Properties of Advanced Materials
  • CO2 Reduction Techniques and Catalysts
  • Advanced Photocatalysis Techniques
  • Advanced battery technologies research
  • High-pressure geophysics and materials
  • Advanced Battery Materials and Technologies
  • Perovskite Materials and Applications
  • Hydrogen Storage and Materials
  • Advanced Chemical Physics Studies
  • Nanomaterials for catalytic reactions
  • Carbon Dioxide Capture Technologies
  • Catalytic Processes in Materials Science
  • Boron and Carbon Nanomaterials Research
  • Luminescence and Fluorescent Materials
  • Corrosion Behavior and Inhibition
  • Advanced Nanomaterials in Catalysis
  • Catalysts for Methane Reforming
  • Electrochemical Analysis and Applications
  • Cryptography and Data Security
  • Vanadium and Halogenation Chemistry
  • Quantum, superfluid, helium dynamics

Imperial College London
2022-2025

Jimei University
2024-2025

Institute of Food Science & Technology
2025

Northwest A&F University
2025

Hubei University
2024

Northwestern Polytechnical University
2024

China University of Geosciences (Beijing)
2024

London Centre for Nanotechnology
2022-2023

Hainan University
2023

Yancheng Institute of Technology
2023

The rational construction of efficient and low-cost electrocatalysts for the hydrogen evolution reaction (HER) is critical to seawater electrolysis. Herein, trimetallic heterostructured core-shell nanoboxes based on Prussian blue analogues (Ni-Co@Fe-Co PBA) were synthesized using an iterative coprecipitation strategy. same procedure was used preparation PBA core shell, with synthesis shell involving chemical etching during introduction ferrous ions. Due its unique structure composition,...

10.1021/acscatal.2c05433 article EN cc-by ACS Catalysis 2023-01-09

The development of hematite-based electrocatalysts (EC) and photoelectrocatalysts (PEC) for oxygen evolution reaction (OER) is highly promising on account the low-cost favorable chemical properties. Herein, we report a unique inverse opal framework bi-functional catalyst both EC PEC water oxidation in alkaline media. Under combined action vacancies (Vo) gold nanostars (AuNSs) hematite, exhibited excellent activity stability PEC. composite showed superior electrocatalytic performance OER with...

10.1016/j.nanoen.2022.106968 article EN cc-by Nano Energy 2022-01-19

Sodium (Na) is the most appealing alternative to lithium as an anode material for cost-effective, high-energy-density energy-storage systems by virtue of its high theoretical capacity and abundance a resource. However, uncontrolled growth Na dendrites limited cell cycle life impede large-scale practical implementation Na-metal batteries (SMBs) in commonly used low-cost carbonate electrolytes. Herein, employment novel bifunctional electrospun nanofibrous separator comprising well-ordered,...

10.1002/adma.202206367 article EN cc-by Advanced Materials 2022-09-21

Abstract The electrochemical CO 2 reduction reaction (CO RR) to value‐added chemicals with renewable electricity is a promising method decarbonize parts of the chemical industry. Recently, single metal atoms in nitrogen‐doped carbon (MNC) have emerged as potential electrocatalysts for RR high activity and faradaic efficiency, although limitation unclear. To understand comparison intrinsic different MNCs, two catalysts are synthesized through decoupled two‐step synthesis approach temperature...

10.1002/adfm.202302468 article EN cc-by Advanced Functional Materials 2023-06-09

Aligning dipoles in ferroelectric BaTiO 3 (BTO) nanoparticles enhances Li–S cathode performance by improving polysulfide adsorption.

10.1039/d4ee01936a article EN cc-by Energy & Environmental Science 2024-01-01

Single-atom catalysts, in particular the Fe-N-C family of materials, have emerged as a promising alternative to platinum group metals fuel cells catalysts for oxygen reduction reaction. Numerous theoretical studies suggested that dual atom can appreciably accelerate catalytic reactions; nevertheless, synthesis these materials is highly challenging owing metal clustering and aggregation into nanoparticles during high temperature treatment. In this work, are prepared by controlled post...

10.1039/d1ta09560a article EN cc-by Journal of Materials Chemistry A 2022-01-01

MXenes show promising potential in supercapacitors due to their unique two-dimensional (2D) structure and abundant surface functional groups. However, most studies about have focused on tailoring structures by alternating synthesis methods or post-etch treatments, little is known the inherent relationship between groups M elements. Herein, we propose a simple novel strategy adjust of few-layered MXene flakes adding small amount Nb element. Because strong affinity O elements, as-received...

10.1021/acsami.2c21838 article EN ACS Applied Materials & Interfaces 2023-03-16

Kayexalate was employed to decrease the particle size of Xylose-based hydrochars, which after oxygen activation led enhanced specific surface area. The resulting FeNC catalyses alkaline reduction at industrial current densities.

10.1039/d3gc04645a article EN cc-by Green Chemistry 2024-01-01

This review describes some of the fascinating advances in field chemoselective hydrogenation α,β-unsaturated aldehyde to unsaturated alcohol over nanomaterials that have emerged recent years. The examples described are categorized into three main sections, according research approach applied, including size/shape/composition control metal nanoparticle catalysts, employment novel nanosized inorganic materials, and design/selection stabilizer/solvent for synthesis dispersion catalysts....

10.2174/1385272811317040007 article EN Current Organic Chemistry 2013-02-01

Macrocycles show high activity for the electrochemical reduction of oxygen in alkaline media. However, even macrocycles with same metal centers and MN4 active site can vary significantly selectivity, to this date, a quantitative insight into cause these staggering differences has not been unambiguously reached. These form fundamental platform, similarly platinum alloys ORR catalyst, unravel properties FeNx catalysts. In manuscript, we present systematic study several macrocycles, varying...

10.1021/acselectrochem.4c00146 article EN cc-by ACS electrochemistry. 2025-01-08

As the oxygen reduction reaction (ORR) kinetics account for largest share of performance losses fuel cells, most research in platinum group metal (PGM)-free catalysts prioritize on improving the...

10.1039/d4lf00380b article EN cc-by-nc RSC Applied Interfaces 2025-01-01

Aflatoxin B1 (AFB1) is considered a critical analyte in food safety testing due to its widespread contamination and high toxicity. In this study, ratiometric fluorescent immunosensor with synergistic catalysis by natural enzymes nanozymes (N-N-RF-immunosensor) was constructed for the rapid detection of AFB1. Copper oxide zeolitic imidazolate framework composite nanomaterials (CuO/ZIF-8 NCM) peroxidase oxidase activities were prepared. A fluorescence signal generated through cocatalytic...

10.1021/acs.jafc.5c01127 article EN Journal of Agricultural and Food Chemistry 2025-03-25

Multi-color luminescence of uniform CdWO<sub>4</sub>:Eu<sup>3+</sup>nanorods can be realized only through altering the doping concentration Eu<sup>3+</sup>ions.

10.1039/c4tc02409e article EN Journal of Materials Chemistry C 2015-01-01

The demand for versatile and sustainable energy materials is on the rise, given importance of developing novel clean technologies transition to a net zero economy. Here, we present synthesis, characterization, application lignin-derived ordered mesoporous carbons with various pore sizes (from 5 approximately 50 nm) as anodes in sodium-ion batteries. We have varied size using self-synthesized PEOn-b-PHAm block copolymers different PEO PHA chain lengths, applying "soft templating" approach...

10.1021/acs.chemmater.3c01520 article EN cc-by Chemistry of Materials 2023-12-06

Supercapacitors are emerging as energy-efficient and robust devices for electrochemical CO2 capture. However, the impacts of electrode structure charging protocols on capture performance, including stability selectivity over O2, remain unclear. Therefore, this study develops structure-property-performance correlations supercapacitor electrodes at different conditions. We find that with large surface areas low oxygen functionalization generally perform best, while a combination micro-...

10.26434/chemrxiv-2023-nj817-v2 preprint EN cc-by-nc 2024-03-05

Transition-metal nitrides have applications in a range of technological fields. Recent experiments shown that new nitrogen-bearing compounds can be accessed through combination high temperatures and pressures, revealing richer chemistry than was previously assumed. Here, we show at pressures above 50 GPa greater 1500 K elemental copper reacts with nitrogen, forming diazenide (CuN2). Through synchrotron X-ray diffraction first-principles calculations explored the stability electronic...

10.1021/acs.jpclett.9b00070 article EN The Journal of Physical Chemistry Letters 2019-02-20

Abstract Atomically dispersed iron–nitrogen–carbon catalysts are promised, low‐cost, and high‐performance electrocatalysts for the Oxygen Reduction Reaction (ORR) in fuel cells. However, most Fe–N–C materials produced via pyrolysis at a high temperature it is difficult to characterise precise Fe–N configurations. This can lead confusion surrounding best chemical coordination environment Fe understanding subsequent ORR mechanisms. In this work, porphyrin used produce specific environment,...

10.1002/adfm.202311086 article EN cc-by Advanced Functional Materials 2023-12-31
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