Pengfei Chen

ORCID: 0000-0003-2494-5378
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Ferroelectric and Piezoelectric Materials
  • Microwave Dielectric Ceramics Synthesis
  • Dielectric materials and actuators
  • Flame retardant materials and properties
  • Polymer composites and self-healing
  • Luminescence and Fluorescent Materials
  • Perovskite Materials and Applications
  • Multiferroics and related materials
  • Gas Sensing Nanomaterials and Sensors
  • Dielectric properties of ceramics
  • Organic Light-Emitting Diodes Research
  • Advanced Photocatalysis Techniques
  • Molecular Sensors and Ion Detection
  • biodegradable polymer synthesis and properties
  • Advanced Thermodynamics and Statistical Mechanics
  • Machine Learning in Materials Science
  • Surface Modification and Superhydrophobicity
  • Acoustic Wave Resonator Technologies
  • Aerogels and thermal insulation
  • Porphyrin and Phthalocyanine Chemistry
  • Synthesis and properties of polymers
  • ZnO doping and properties
  • Computational Drug Discovery Methods

Jiangsu University
2025

Kunming University of Science and Technology
2024

Southwest University of Science and Technology
2024

Anhui University
2017-2023

Chongqing University of Arts and Sciences
2022

Chongqing University of Technology
2022

China Power Engineering Consulting Group (China)
2022

PowerChina (China)
2022

Nanjing University of Posts and Telecommunications
2022

Nanjing Tech University
2019-2021

Lead-free relaxor ferroelectric ceramics with ultrahigh energy-storage performance are vital for pulsed power systems. We herein propose a strategy of phase and band structure engineering high-performance energy storage. To demonstrate the effectiveness this strategy, (1 - x)(0.75Na0.5Bi0.5TiO3-0.25SrTiO3)-xCaTi0.875Nb0.1O3 (NBT-ST-xCTN, x = 0.1, 0.2, 0.3, 0.4, 0.5) samples were designed fabricated via solid-state reaction method. The linear dielectric CTN was used as modulator to tune both...

10.1021/acsami.2c17170 article EN ACS Applied Materials & Interfaces 2022-11-22

Abstract Ho 3+ ‐doped (K 0.5 Na )NbO 3 ‐based transparent ceramics have been prepared via pressureless solid‐state method. The possess moderate optical transparency with the energy band gap of ~2.9 eV and submicron‐sized grains (<500 nm). temperature‐dependent dielectric properties ferroelectric polarization‐electric field hysteresis loops demonstrate that own relaxor‐like characteristics. up‐conversion photoluminescence temperature sensing investigated. dependence provides a fluorescent...

10.1111/jace.15967 article EN Journal of the American Ceramic Society 2018-08-03

A sugar-based bis-furan diepoxide (OmbFdE) was developed which imparted epoxy resins with excellent fire retardancy.

10.1039/c9py00202b article EN Polymer Chemistry 2019-01-01

Lead-free (1 – x)(0.94Na0.5Bi0.5TiO3-0.06BaTiO3)-x(Sr0.85Bi0.1)(Mg1/3Nb2/3)O3 ((1 x)(NBT-BT)-xSBMN) ceramics are synthesized using the traditional solid-state reaction method. The introduction of SBMN leads to a dense microstructure with small mean grain size. temperature-dependent dielectric spectrum reveals that sample x = 0.24 shows best temperature stability TS occurring around room temperature. A large recoverable energy storage density value 3.05 J/cm3, high efficiency 89%, and...

10.1021/acsaem.1c01566 article EN ACS Applied Energy Materials 2021-08-18

We introduce a new molecular dataset, named Alchemy, for developing machine learning models useful in chemistry and material science. As of June 20th 2019, the dataset comprises 12 quantum mechanical properties 119,487 organic molecules with up to 14 heavy atoms, sampled from GDB MedChem database. The Alchemy expands volume diversity existing datasets. Our extensive benchmarks state-of-the-art graph neural network on clearly manifest usefulness data validating further launch contest attract...

10.48550/arxiv.1906.09427 preprint EN other-oa arXiv (Cornell University) 2019-01-01

To get insight on how the donor (D)/acceptor (A) substitutions and their substitution pattern affect optical properties in solution solid state, four novel carbazole derivatives C1–C4 with different terminal groups (N(CH3)2, H, Br, CN) have been employed. Their single-crystal X-ray structures confirm that twisted structures, intermolecular interactions, loose molecular packing are functions of groups. Interestingly, they displayed substituent-dependent aggregation-induced behaviors...

10.1021/acs.jpcc.8b05638 article EN The Journal of Physical Chemistry C 2018-08-09

Herein, three bipyridine-bridged metallated porphyrin COPs were synthesized. Bpy-CoTNPP achieves a low HER overpotential of 130 mV at 10 mA cm-2 in alkaline media, surpassing most counterparts. This performance stems...

10.1039/d5cc00665a article EN Chemical Communications 2025-01-01

Abstract This work outlines an interesting approach to bioepoxy resins from sustainable 2,5‐bis((oxiran‐2‐ylmethoxy)methyl)furan (BOF). The 3,3′‐diamino diphenyl‐sulfone (33DDS) and 4,4′‐diamino (44DDS) are employed as hardeners. For comparison, petro‐based networks diglycidyl ether of bisphenol A (DGEBA) developed well. systematic analyses suggest that the BOF/DDS show higher crosslink densities mechanical properties than DGEBA/DDS thermosets. Remarkably, attractive multilayer tubular...

10.1002/mame.201900587 article EN Macromolecular Materials and Engineering 2019-11-18

The CH3NH3PbI3 (MAPbI3) powders were ground by PbI2 and CH3NH3I prepared ice bath method. humidity sensitive properties of an impedance-type sensor based on MAPbI3 materials systematically studied. Our results indicate that the MAPbI3-based has superior sensing behaviors, including high sensitivity 5808, low hysteresis, approximately 6.76%, as well good stability. Water-molecule-induced enhancement conductive carrier concentration was argued to be responsible for excellent properties....

10.3390/nano12030523 article EN cc-by Nanomaterials 2022-02-02

ABSTRACT In this article, the smoke production behaviors of crosslinked epoxy/polyamide resin (EP/PA) and intumescent fire retardant (IFR) in epoxy‐based fire‐retardant coating (IFR‐EP) have been investigated using cone calorimeter, density instrument, thermogravimetric analysis Fourier transform infrared spectroscopic measurement. The static dynamic EP/PA IFR‐EP indicate that IFR has an excellent suppression effect on by forming protective char layer late combustion stage, while epoxy...

10.1002/app.43912 article EN Journal of Applied Polymer Science 2016-06-04

Quantum objects are susceptible to noise from their surrounding environments, interaction with which inevitably gives rise quantum decoherence or dissipation effects. In this work, we examine how different types of local under an open system affect entropic uncertainty relations for two incompatible measurements. Explicitly, observe the dynamics in presence memory canonical categories noisy environments: unital (phase flip) and nonunital (amplitude damping). Our study shows that measurement...

10.1088/1612-202x/aa9639 article EN Laser Physics Letters 2017-12-12
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