Tianwu Chen

ORCID: 0000-0002-3183-1507
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About
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Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Advanced Sensor and Energy Harvesting Materials
  • Dielectric materials and actuators
  • Conducting polymers and applications
  • Advanced Battery Technologies Research
  • Graphene research and applications
  • Diamond and Carbon-based Materials Research
  • Energetic Materials and Combustion
  • Carbon Nanotubes in Composites
  • Supercapacitor Materials and Fabrication
  • Innovative Energy Harvesting Technologies
  • Advanced battery technologies research
  • Cell Adhesion Molecules Research
  • Advanced Materials and Mechanics
  • Medical Imaging and Analysis
  • Cellular transport and secretion
  • Chronic Kidney Disease and Diabetes
  • Laser-Ablation Synthesis of Nanoparticles
  • Electrocatalysts for Energy Conversion
  • Metabolism and Genetic Disorders
  • Solid-state spectroscopy and crystallography
  • Fiber-reinforced polymer composites
  • Thermal Expansion and Ionic Conductivity
  • Electromagnetic wave absorption materials

Pennsylvania State University
2017-2023

Affiliated Hospital of North Sichuan Medical College
2023

Peking University
2012-2013

Polymer composites with electrically conductive fillers have been developed as mechanically flexible, easily processable electromagnetic interference (EMI) shielding materials. Although there are a few elastomeric nanostructured silvers and carbon nanotubes showing moderate stretchability, their EMI effectiveness (SE) deteriorates consistently stretching. Here, highly stretchable polymer composite embedded three-dimensional (3D) liquid-metal (LM) network exhibiting substantial increases of...

10.1002/adma.201907499 article EN Advanced Materials 2020-02-20

Electrochemically driven functioning of a battery inevitably induces thermal and mechanical effects, which in turn couple with the electrochemical effect collectively govern performance battery. However, such coupling effect, whether favorable or detrimental, has never been explicitly elucidated. Here we use situ transmission electron microscopy to demonstrate effect. We discover that thermally perturbating delithiated LiNi0.6Mn0.2Co0.2O2 will trigger explosive nucleation propagation...

10.1038/s41467-018-04862-w article EN cc-by Nature Communications 2018-06-18

Abstract High-theoretical capacity and low working potential make silicon ideal anode for lithium ion batteries. However, the large volume change of upon lithiation/delithiation poses a critical challenge stable battery operations. Here, we introduce an unprecedented design, which takes advantage deformation ensures structural stability material by developing two-dimensional nanosheet coated with thin carbon layer. During electrochemical cycling, this exhibits unique patterns, featuring...

10.1038/s41467-018-05398-9 article EN cc-by Nature Communications 2018-07-20

Abstract Polymer dielectrics are ubiquitous in advanced electric energy storage systems. However, the relatively low operating temperature significantly menaces their widespread application at high temperatures, such as for hybrid vehicles and aerospace power electronics. Spider silk, a natural nanocomposite comprised of biopolymer chains crystal protein nanosheets combined by multiple interfacial interactions, exhibits excellent mechanical properties even elevated temperatures. Inspired...

10.1002/smll.201901582 article EN Small 2019-05-14

Lithium (Li) penetration through solid electrolytes (SEs) induces short circuits in Li solid‐state batteries (SSBs), which is a critical issue that hinders the development of high energy density SSBs. While cracking ceramic SEs has been often shown to accompany penetration, interplay between deposition and remains elusive. Here, we constructed mesoscale SSB inside focused ion beam‐scanning electron microscope (FIB‐SEM) for situ observation deposition‐induced at nanometer resolution. Our...

10.1002/eem2.12261 article EN Energy & environment materials 2021-08-15

Phosphorus represents a promising anode material for sodium ion batteries owing to its extremely high theoretical capacity. Recent in situ transmission electron microscopy studies evidenced anisotropic swelling sodiated black phosphorus, which may find an origin from the two intrinsic properties inherent layered structure of phosphorus: diffusional directionality and insertion strain anisotropy. To understand morphological evolution stress generation we develop chemo-mechanical model by...

10.1021/acs.nanolett.6b05033 article EN Nano Letters 2017-02-09

Abstract Current stretchable conductors, often composed of elastomeric composites infused with rigid conductive fillers, suffer from limited stretchability and durability, declined conductivity stretching. These limitations hinder their potential applications as essential components such interconnects, sensors, actuators in electronics soft machines. In this context, an innovative composite that incorporates a 3D network liquid metal (LM), offering exceptional stretchability, conductivity,...

10.1002/adfm.202310225 article EN cc-by-nc-nd Advanced Functional Materials 2023-10-27

Abstract Covalent modification of multiwalled carbon nanotubes (MWCNTs) is an efficient way to improve the interfacial interaction and compatibility between MWCNTs matrix. In this article, MWNCTs were covalently modified by 4,4′‐difluorobenzophenone (DB) allow temperature‐tolerant functional groups on walls. These surface‐functionalized (MWCNTs‐DB) then attached poly(ether ether ketone) (PEEK) resins in situ grafting polymerization, prepare high‐strength PEEK nanocomposites. The addition 1...

10.1002/pc.27409 article EN Polymer Composites 2023-05-12

Gap closure to eliminate physical discontinuities and restore tissue integrity is a fundamental process in normal development repair of damaged tissues organs. Here, we demonstrate nonadhesive gap model which collective cell migration, large-scale actin-network fusion, purse-string contraction orchestrate the gap. Proliferative pressure drives migrating cells attach onto front at pluricellular actin ring already assembled. An actin-ring segment switching then occurs by fusion fibers from...

10.1073/pnas.2010960117 article EN Proceedings of the National Academy of Sciences 2020-12-14

Different types of carbon coated iron (Fe) based nanoparticles were controllably synthesized by detonation decomposition urea nitrate metal complex explosive precursors. In order to control the synthesis Fe-based composite nanoparticles, main components precursors optimally designed. The components, morphologies, structures and various phase composition as-obtained further investigated x-ray diffraction, transmission electron microscopy, diffraction spectroscopy energy dispersive...

10.1088/0957-4484/23/47/475603 article EN Nanotechnology 2012-10-30

Hybrid core-shell catalysts possess superior physiochemical properties that are closely related to their atomic structures. Here, we report novel diffusion phenomena in an Au-Ni2P yolk-shell structure using situ heating transmission electron microscopy (TEM) analysis. The Au yolks can dissolve completely into and diffuse across the Ni2P shell at 500 °C, resulting inward volume expansion of shrinkage void. dissolved is subsequently segregated, forming a new crystal on outer layer shell. A...

10.1021/acsami.9b17531 article EN ACS Applied Materials & Interfaces 2019-11-22

Renal ectopic lipid deposition (ELD) plays a significant role in the development of diabetic nephropathy (DN). This study aimed to use magnetic resonance (MR) mDixon-Quant technique evaluate renal ELD and its association with expression sterol regulatory element binding protein 1 (SREBP-1) peroxisome proliferator-activated receptor alpha (PPARα) tissue.Seventy male Sprague-Dawley (SD) rats were randomly divided into experimental (n=50) control groups (n=20). A high-fat diet combined low-dose...

10.21037/qims-22-1167 article EN Quantitative Imaging in Medicine and Surgery 2023-05-10

In article number 1901582, Xiangyu Jiang, Xiaoshi Qian, Yunhe Zhang, and co-workers fabricate a series of bioinspired nanocomposites by designing multiple interfacial interactions between the wide-gap artificial nanosheets high glass transition temperature (Tg) polymer matrix. Nanoconfinement effect is utilized in for enhanced electric energy-storage properties.

10.1002/smll.201970148 article EN Small 2019-07-01
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