Pengfei Shen

ORCID: 0000-0003-3048-8847
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About
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Research Areas
  • Perovskite Materials and Applications
  • 2D Materials and Applications
  • MXene and MAX Phase Materials
  • Graphene research and applications
  • Advancements in Battery Materials
  • Luminescence Properties of Advanced Materials
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Catalysts for Methane Reforming
  • Quantum Dots Synthesis And Properties
  • High Entropy Alloys Studies
  • Advanced Photocatalysis Techniques
  • Advanced Battery Materials and Technologies
  • Gas Sensing Nanomaterials and Sensors
  • Advanced materials and composites
  • Catalytic Processes in Materials Science
  • Advanced biosensing and bioanalysis techniques
  • ZnO doping and properties
  • Chalcogenide Semiconductor Thin Films
  • Advanced ceramic materials synthesis
  • Catalysis and Hydrodesulfurization Studies
  • Transition Metal Oxide Nanomaterials
  • Supercapacitor Materials and Fabrication
  • Laser Material Processing Techniques
  • Thermochemical Biomass Conversion Processes

Shanghai Sunshine Rehabilitation Center
2025

Sun Yat-sen University
2025

Mongolian University of Science and Technology
2025

AviChina Industry & Technology (China)
2024

Shenzhen Technology University
2023-2024

China Railway Group (China)
2024

First Affiliated Hospital of Jinan University
2024

Jilin University
2015-2023

Ningbo University
2020-2022

Donghua University
2022

In this paper, we have presented a novel strategy to fabricate fluorescent boronic acid modified carbon dots (C-dots) for nonenzymatic blood glucose sensing applications. The functionalized C-dots are obtained by one-step hydrothermal carbonization, using phenylboronic as the sole precursor. Compared with conventional two-step fabrication of nanoparticle-based sensors, present "synthesis-modification integration" is simpler and more efficient. added selectively leads assembly fluorescence...

10.1021/ac5001338 article EN Analytical Chemistry 2014-04-02

The catalytic activity has been investigated in 2D materials, and the unique structural electronic properties contribute to their success conventional heterogeneous catalysis. Heterojunction-based piezocatalysis attracted increasing attention due band-structure engineering enhanced charge carrier separation by prominent piezoelectric effect. However, piezocatalytic behavior of van der Waals (vdW) heterostructures is still unknown, finite active sites, catalyst poisoning, poor conductivity...

10.1002/adma.202212172 article EN Advanced Materials 2023-02-13

Lead halide perovskites are currently attracting a great deal of attentions due to their promise as light absorbers in high‐efficiency hybrid organic–inorganic solid‐state solar cells. The reliable information about interface energetics lead perovskite‐based interfaces is indispensable unraveling the photon harvesting and charge separation process for this emerging photovoltaic technology. Here, we provide direct evidence on energy level alignments at between perovskite organic...

10.1002/admi.201400528 article EN Advanced Materials Interfaces 2015-01-20

Abstract Bacterial infections, especially those from drug‐resistant strains, pose a significant threat to healing diabetic skin injuries, with current treatments being intricated and often unsatisfactory. Inspired by octopuses, biomimetic material using α‐cyclodextrin (α‐CD) polyethylene glycol (PEG) assembled graphene oxide end‐capped polyrotaxanes (GO‐PR) is developed, where α‐CD mimics the flexible tentacles of an octopus. Further, cationically modified polyethyleneimine (PEI) resemble...

10.1002/adfm.202402591 article EN Advanced Functional Materials 2024-07-01

The formation mechanism of perovskite methylammonium lead triiodide (CH3NH3PbI3) was studied with in situ X-ray photoelectron spectroscopy (XPS) on successive depositions thermally evaporated iodide (CH3NH3I) a (PbI2) film. This deposition method mimics the “two-step” synthesis commonly used device fabrication. We find that several competing processes occur during CH3NH3PbI3. Our most important finding is vapour CH3NH3I onto PbI2, at least two carbon species are present resulting material,...

10.1063/1.4928662 article EN Applied Physics Letters 2015-08-10

Abstract Self‐trapped exciton (STE) emission of low‐dimensional metal halides has witnessed explosive developments in both display and illumination, due to its intriguing photoluminescence properties. As one typical feature, STE energy is commonly independent excitation wavelength. Herein, a rare phenomenon inverse excitation‐dependent dual‐band achieved on 0D Cs 2 InBr 5 ·H O. Under initial compression, the contraction inhomogeneously coordinated O octahedra gives rise blue‐shifted with...

10.1002/adfm.202104923 article EN Advanced Functional Materials 2021-07-02

Hybrid metal halides with tunable photoluminescence (PL) properties have emerged as a novel light-emitting material. manganese are especially attractive due to the eco-friendly and highly emissive advantages. However, PL tunability induced by structural modulation in has rarely been investigated. Herein, new one-dimensional (1D) hybrid chloride, (4AMP)4ClMn3Cl13·HCl (4AMP = 4-(aminomethyl)pyridinium), where corner-sharing octahedral chloride chains of [Mn3Cl137–]∞ surrounded organic cations,...

10.1021/acs.inorgchem.1c00393 article EN Inorganic Chemistry 2021-04-22

Two-dimensional (2D) perovskites with inorganic layers sandwiched between hydrophobic organic cations possess excellent lighting properties and moisture stability. However, broad-band white light (BWL) is limited to a selected class of perovskites. Our understanding the intrinsic relationship BWL structure systemic study their mechanism photoluminescence (PL) emission caused by self-trapped excitons in 2D are still lacking. Here, we show pressure-induced PL enhancement (PIPE) remarkable...

10.1021/acs.jpclett.0c01160 article EN The Journal of Physical Chemistry Letters 2020-05-04

The Cu(Zn)–Ge–P compounds have high ionic and electronic conductivity good tolerance to volume change during cycling, thus delivering excellent Li-storage performance.

10.1039/d0ee03553j article EN Energy & Environmental Science 2021-01-01

Both experimental and simulation approaches were employed to investigate the laser ablation mechanism performances of Glass Fiber Reinforced Phenolic Composites (GFRP). During process, difference in thermal conductivities glass fibers resin matrix as well their discrepant physical chemical reactions form a conical morphology. The formation residual carbon layer effectively mitigates rate thickness direction. A higher power density results faster rate, while longer irradiation time leads...

10.1016/j.cja.2024.05.042 article EN cc-by-nc-nd Chinese Journal of Aeronautics 2024-06-03

This study elucidated the synergistic improvement of interfacial performance and impact resistance carbon fiber-reinforced epoxy (CF/EP) composites by employing continuous electrochemical oxidation. CFs were electrochemically treated at different current densities, surface physicochemical properties, including morphologies, chemical compositions, wettabilities, analyzed. After oxidation, IFSS CF/EP increased 48.8%, significantly improving composites. The experimental results showed that,...

10.3390/polym17081007 article EN Polymers 2025-04-08

<title>Abstract</title> Purpose: Traditional vulnerability detection methods based on machine learning (ML) and deep (DL) primarily focus coarse-grained predictions, often lacking precise localization interpretability regarding the root causes of vulnerabilities. The growing availability open-source databases calls for advanced that can reason about vulnerabilities at a finer slice-level granularity. GPTVD, which leverages large language models’ (LLMs) in-context (ICL) chain-of-thought (COT)...

10.21203/rs.3.rs-6275325/v1 preprint EN Research Square (Research Square) 2025-04-21

In the intensive care unit (ICU), patients often experience restricted mobility due to their critical condition, potentially leading negative effects on both muscle strength and immune function. Previous research has highlighted beneficial of early mobilization among patients, regardless mechanical ventilation status. Hence, bed cycling serves as a potential facilitator for is considered feasible intervention critically ill within ICU. To mitigate this concern, we propose randomized...

10.62347/vbur5104 article EN American journal of clinical and experimental immunology. 2025-01-01
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