Peng Zheng

ORCID: 0000-0002-0932-3119
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Research Areas
  • Advancements in Battery Materials
  • Supercapacitor Materials and Fabrication
  • Advanced Battery Materials and Technologies
  • Advanced Photocatalysis Techniques
  • Graphene research and applications
  • TiO2 Photocatalysis and Solar Cells
  • Synthesis and properties of polymers
  • Conducting polymers and applications
  • Polymer Nanocomposites and Properties
  • Dendrimers and Hyperbranched Polymers
  • biodegradable polymer synthesis and properties
  • Polymer crystallization and properties
  • Synthesis of Organic Compounds
  • Copper-based nanomaterials and applications
  • Advanced Cellulose Research Studies
  • Synthesis and biological activity
  • Carbon and Quantum Dots Applications
  • Advanced Battery Technologies Research
  • Advanced battery technologies research
  • Perovskite Materials and Applications
  • Electrochemical Analysis and Applications
  • Gas Sensing Nanomaterials and Sensors
  • Simulation and Modeling Applications
  • Lipid Membrane Structure and Behavior
  • Advanced Nanomaterials in Catalysis

Nanjing University of Science and Technology
2020-2025

Jinhua Central Hospital
2025

Shaanxi University of Science and Technology
2015-2024

Nanjing University
2024

Shijiazhuang Tiedao University
2006-2024

Chongqing Technology and Business University
2024

Southeast University
2024

China Academy of Engineering Physics
2009-2022

University of Chinese Academy of Sciences
2012-2022

Guangzhou Institute of Energy Conversion
2022

We developed a postgrowth doping method of TiO2 nanowire arrays by simultaneous hydrothermal etching and in weakly alkaline condition. The obtained tungsten-doped core-shell nanowires have an amorphous shell with rough surface, which W species are incorporated into the during this etching/regrowth step for optimization photoelectrochemical performance. Photoanodes made these W-doped show much enhanced photocurrent density ~1.53 mA/cm(2) at 0.23 V vs Ag/AgCl (1.23 reversible hydrogen...

10.1021/nn4040876 article EN ACS Nano 2013-09-19

We report an all-nanowire based flexible Li-ion battery full cell, using homologous Mn2O3 and LiMn2O4 nanowires for anodes cathodes, respectively. The same precursors, MnOOH nanowires, are transformed from hydrothermally grown MnO2 nanoflakes directly attached on Ti foils via reaction with poly(vinyl pyrrolidone). anode cathode subsequently formed by thermal annealing lithium salt, one-dimensional nanowire structures provide short lithium-ion diffusion path, good charge transport, volume...

10.1021/nl4047834 article EN Nano Letters 2014-01-29

Abstract We demonstrate a facile, two-step coating/calcination approach to grow uniform MnO nanoparticle@mesoporous carbon (MnO@C) composite on conducting substrates, by direct coating of the Mn-oleate precursor solution without any conducting/binding reagents and subsequent thermal calcination. The monodispersed, sub-10 nm nanoparticles offer high theoretical energy storage capacities catalytic properties mesoporous allows for enhanced electrolyte transport charge transfer towards/from...

10.1038/srep02693 article EN cc-by Scientific Reports 2013-09-18

Transition metal oxides are promising candidates for lithium-ion battery electrodes, while their performances generally limited by poor electrical conductivity and cycling stability. In this paper, we report the growth of aligned, single-crystalline NiO nanoflake arrays directly on copper substrates a modified hydrothermal synthesis post-annealing. The close contact nanoflakes current collector (e.g. Cu) allows efficient charge transport, waives need adding ancillary conducting materials or...

10.1039/c2jm34496c article EN Journal of Materials Chemistry 2012-01-01

Abstract Through electrostatic interaction and high-temperature reduction methods, rGO was closely coated onto the surface of TiO 2 nanotubes. Even at a high temperature 700 °C, nanotube morphology (anatase) preserved because assistance rGO, which provides framework that prevents tubes from breaking into particles undergoing phase transformation. The rGO/TiO nanotubes deliver capacity (263 mAh g −1 end 100 cycles 0.1 A ), excellent rate performance (151 102 5 good cycle stability (206 after...

10.1038/srep36580 article EN cc-by Scientific Reports 2016-11-03

We report a facile, two-step hydrothermal growth method to synthesize novel hierarchical SnO2–Fe2O3 heterostructure, consisting of micron-sized primary SnO2 nanosheet base and sub-10 nm diameter Fe2O3 nanorod branches grown on the surface. In addition high theoretical lithium storage capacities both oxide components, two-dimensional nanosheets offer surface area fast charge transport pathways, one-dimensional α-Fe2O3 nanorods serve as structural spacers between individual nanosheets, thus...

10.1039/c2jm35255a article EN Journal of Materials Chemistry 2012-01-01

Sweet potato is produced abundantly around the word and its derived nano-carbon delivers high capacity as anode for LIBs, which should satisfy increasing need anodes LIBs.

10.1039/c5ra03482e article EN RSC Advances 2015-01-01

We developed a universal method to prepare hydrophilic carbon nitrogen (C3N4) nanosheets. By treating C3N4 nanosheets with oxygen plasma, hydroxylamine groups (N-OH) intense protonation could be introduced on the surface; moreover, content of N-OH increased linearly oxygen-plasma treatment time. Thanks excellent hydrophilicity, uniformly dispersed solution were prepared, which was further translated into paper by simple vacuum filtration. Pure good stability, and biocompatibility proved have...

10.1021/acsami.6b10516 article EN ACS Applied Materials & Interfaces 2016-10-21

We report the development of a multifunctional, solar-powered photoelectrochemical (PEC)–pseudocapacitive–sensing material system for simultaneous solar energy conversion, electrochemical storage, and chemical detection. The TiO2 nanowire/NiO nanoflakes Si nanowire/Pt nanoparticle composites are used as photoanodes photocathodes, respectively. A stable open-circuit voltage ∼0.45 V high pseudocapacitance up to ∼455 F g–1 obtained, which also exhibit repeating charging–discharging capability....

10.1021/nl5014579 article EN Nano Letters 2014-05-13

Abstract Superior first-cycle Coulomb efficiency (above 80%) is displayed by filter paper-derived micro-nano structure hard carbon, and it delivers a high reversible capacity of 286 mAh g −1 after 100 cycles as the anode for Na-ion battery at 20 mA . These advantageous performance characteristics are attributed to unique structure, which reduced first irreversible loss limiting contact between electrode electrolyte, enhanced accelerating electron transfer through inter-connected...

10.1038/srep35620 article EN cc-by Scientific Reports 2016-10-18

Abstract The microtubule‐associated protein tau participates in neurotransmission regulation via its interaction with synaptic vesicles (SVs). precise nature and mechanics of tau‘s engagement SVs, especially regarding alterations vesicle dynamics, remain a matter discussion. We report an electrochemical method using synapse‐mimicking nanopipette to monitor dynamics induced by tau. A model ~30 nm is confined within lipid‐modified orifice comparable diameter mimic the lipid environment. Both...

10.1002/anie.202406677 article EN Angewandte Chemie International Edition 2024-06-03

Lamellar hard carbon derived from holly leaf with enlarged pores of tiny graphite-like domains and meso-pores was prepared by hydrothermal followed high temperature pyrolysis process. Benefiting the nano-pores thin sheet structure meso-pores, delivered a reversible capacity 318 mAh g(-1) at current rate 20 mA excellent capability as anode sodium-ion battery. And method also confirmed an effective approach for betula platyphylla sophora japonica precursor respectively to synthesis lamellar domains.

10.1038/srep26246 article EN cc-by Scientific Reports 2016-05-18

Owing to its large capacity and high average potential, the structure reversible O-redox compensation mechanism of Na2 Mn3 O7 have recently been analyzed. However, fade low coulombic efficiency over multiple cycles also found be a problem, which result from oxygen evolution at charge voltages. Herein, Na0.44 MnO2 ⋅Na2 heterojunction primary nanosheets was prepared by sol-gel-assisted high-temperature sintering method. In nanodomain regions, close contact not only supplies multidimensional...

10.1002/cssc.201903543 article EN ChemSusChem 2020-01-29

Interfacial solar evaporation (ISE) is an environmentally friendly and promising water treatment strategy. However, the bactericidal performance of ISE system during process usually ignored, which may result in potential safety hazards. In this study, a facile method presented for controllable synthesis Ag quantum dots (QDs)/rGO to simultaneously achieve efficient evaporated disinfection. The size nanoparticles (NPs) rather than loading amount factor that considerably affects efficiency...

10.1021/acsami.1c02480 article EN ACS Applied Materials & Interfaces 2021-04-06

The graphene quantum dot based fluorescent probe community needs unambiguous evidence about the control on ion selectivity. In this paper, polyethylene glycol modified N-doped dots (PN-GQDs) were synthesized by alkylation reaction between and organic halides. We demonstrate tunable selectivity sensitivity controlling supramolecular recognition through length end group size of polyether chain PN-GQDs. relationship formulae selectivity/detection limit chains are experimentally deduced....

10.1039/c5an02270c article EN The Analyst 2015-12-18

We demonstrate the controlled doping of Sn into mesoporous TiO2 thin films, by a facile direct growth on conducting substrates (e.g. Ti) using ligand-assisted evaporation-induced self-assembly method. The obtained Sn-doped films are polycrystalline with an anatase structure. frameworks provide efficient ion transport pathways and structural stability for Li+ insertion. in situ incorporation dopants improves charge transfer efficiency theoretical storage capacity electrode. In addition,...

10.1039/c3ta13198j article EN Journal of Materials Chemistry A 2013-01-01
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