Renzong Hu

ORCID: 0000-0002-8994-6438
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Supercapacitor Materials and Fabrication
  • Advanced Battery Technologies Research
  • Advanced battery technologies research
  • Extraction and Separation Processes
  • Semiconductor materials and devices
  • MXene and MAX Phase Materials
  • Graphene research and applications
  • Electrocatalysts for Energy Conversion
  • Transition Metal Oxide Nanomaterials
  • Hydrogen Storage and Materials
  • Conducting polymers and applications
  • Semiconductor materials and interfaces
  • Fuel Cells and Related Materials
  • Advanced Photocatalysis Techniques
  • Aluminum Alloys Composites Properties
  • Inorganic Chemistry and Materials
  • Polyoxometalates: Synthesis and Applications
  • ZnO doping and properties
  • High Entropy Alloys Studies
  • Anodic Oxide Films and Nanostructures
  • Electron and X-Ray Spectroscopy Techniques
  • Thermal Expansion and Ionic Conductivity
  • Advancements in Solid Oxide Fuel Cells

South China University of Technology
2016-2025

Xi'an Technological University
2023-2025

Advanced Energy (United States)
2025

Qinghai New Energy (China)
2024

Georgia Institute of Technology
2015-2017

AID Atlanta
2016

Guangzhou Experimental Station
2014

Rechargeable aqueous Zn/MnO2 battery chemistry in a neutral or mildly acidic electrolyte has attracted extensive attention recently because all the components (anode, cathode, and electrolyte) are safe, abundant, sustainable. However, reaction mechanism of MnO2 cathode remains topic discussion. Herein, we design highly reversible where binder-free was fabricated by situ electrodeposition on carbon fiber paper mild ZnSO4+MnSO4 electrolyte. Electrochemical structural analysis identify that...

10.1021/jacs.7b04471 article EN Journal of the American Chemical Society 2017-07-14

Abstract On account of increasing demand for energy storage devices, sodium‐ion batteries (SIBs) with abundant reserve, low cost, and similar electrochemical properties have the potential to partly replace commercial lithium‐ion batteries. In this study, a facile metal‐organic framework (MOF)‐derived selenidation strategy synthesize in situ carbon‐encapsulated selenides as superior anode SIBs is rationally designed. These particular micro‐ nanostructured features deliver ultrastable cycling...

10.1002/adfm.201707573 article EN Advanced Functional Materials 2018-02-16

Probing competent electrocatalysts for hydrogen evolution reaction (HER) of water splitting is one the most hopeful approaches to confront energy and environmental crisis. Herein, we highlight ultrathin N-doped Mo2C nanosheets (N-Mo2C NSs) in role greatly efficient platinum-free-based HER. The transformation crystal phase structure between MoO2 with a thickness ∼1.1 nm N-Mo2C NSs ∼1.0 studied detail. Structural analyses make clear that surfaces are absolutely encompassed by apical Mo atoms,...

10.1021/acsnano.7b06607 article EN ACS Nano 2017-12-08

In the current research project, we have prepared a novel Sb@C nanosphere anode with biomimetic yolk-shell structure for Li/Na-ion batteries via nanoconfined galvanic replacement route. The microstructure consists of Sb hollow yolk completely protected by well-conductive carbon thin shell. substantial void space in these particles allows full volume expansion inner while maintaining framework and developing stable SEI film on outside As Li-ion battery anode, they displayed large specific...

10.1021/acs.nanolett.7b00083 article EN Nano Letters 2017-02-13

Lithium-rich layered oxides are promising cathode materials for lithium-ion batteries and exhibit a high reversible capacity exceeding 250 mAh g(-1) . However, voltage fade is the major problem that needs to be overcome before they can find practical applications. Here, Li1.2 Mn0.54 Ni0.13 Co0.13 O2 (LLMO) subjected nanoscale LiFePO4 (LFP) surface modification. The resulting combine advantages of both bulk doping coating as LLMO crystal structure stabilized through cationic doping, protected...

10.1002/anie.201506408 article EN Angewandte Chemie International Edition 2015-09-03

To dramatically stabilize the nanostructure of Sn and achieve ultrahigh reversibility conversion reactions in lithiated SnO2 , a series -transition metal-graphite ternary nanocomposites are produced by ball milling, demonstrating high initial Coulombic efficiencies up to 88.6%, reversible capacity (>700 mAh g-1 at 2 A ), ultralong cycling life (90.3% retention after 1300 cycles).

10.1002/adma.201605006 article EN Advanced Materials 2017-02-10

Suppressing the Sn coarsening in Li<sub>2</sub>O matrix enabled highly reversible conversion between and SnO<sub>2</sub> an initial Coulombic efficiency of ∼95.5% was achieved.

10.1039/c5ee03367e article EN Energy & Environmental Science 2015-12-01

Lithium-sulfur (Li-S) batteries have attracted much attention in the field of electrochemical energy storage due to their high density and low cost. However, "shuttle effect" sulfur cathode, resulting poor cyclic performance, is a big barrier for development Li-S batteries. Herein, novel cathode integrating sulfur, flexible carbon cloth, metal-organic framework (MOF)-derived N-doped nanoarrays with embedded CoP (CC@CoP/C) designed. These unique polar nanoparticles not only offer enough voids...

10.1002/adma.201902228 article EN Advanced Materials 2019-06-20

Here we report chemically-exfoliated V<sub>5</sub>S<sub>8</sub> and graphite hybrid nanosheets (ce-V<sub>5</sub>S<sub>8</sub>–C) as a novel anode material for sodium-ion batteries (SIBs).

10.1039/c6ee03173k article EN Energy & Environmental Science 2016-11-28

To solve the serious problems (the agglomeration of nano-Fe0, dissolution polysulfide, and low electronic conductivity Li2S) earth-abundant pyrite (FeS2) cathodes for lithium batteries, a simple in situ encapsulation transformation route has been successfully developed to synthesis pitaya-structured porous carbon embedded with FeS2 nanoparticles. Due such hierarchical architecture design, this cathode FeS2@C can effectively avoid coarsening small Fe nanoparticles, reduce provide superior...

10.1021/acsnano.7b03530 article EN ACS Nano 2017-08-16

For solving the drawbacks of low conductivity and shuttle effect in a sulfur cathode, various nonpolar carbon polar metal compounds with strong chemical absorption ability are applied as host materials for lithium–sulfur (Li–S) batteries. Nevertheless, previous research simply attributed performance improvement cathodes to adsorption toward lithium polysulfides (LPS), while deep understanding enhanced electrochemical these hosts, especially at molecular levels, is still unclear. Herein,...

10.1021/acsnano.9b02903 article EN ACS Nano 2019-07-29

Hierarchical Fe3O4@polypyrrole nanocages constructed with thin nanosheets are synthesized via a reduction and in situ polymerization route. They exhibit stable cycling performance (650 mA h g−1 capacity at 2000 after 500 cycles) superior rate capability (reversible capabilities of 1120, 950, 796, 657, 490 100, 300, 1000, 2500, 5000 g−1, respectively). As service to our authors readers, this journal provides supporting information supplied by the authors. Such materials peer reviewed may be...

10.1002/aenm.201600256 article EN Advanced Energy Materials 2016-04-29

Abstract Lithium metal is an exciting anode candidate with extra high theoretical specific capacity for new high‐energy rechargeable batteries. However, uncontrolled Li deposition and unsteady solid electrolyte interface seriously obstruct the commercial application of anodes in Herein, 3D carbon cloth (CC) supporting N‐doped (CN) nanosheet arrays embedded tiny Co nanoparticles (CC@CN‐Co) are employed as a lithiophilic framework to regulate homogenous nucleation/growth behavior working...

10.1002/adfm.201909159 article EN Advanced Functional Materials 2020-02-20

(La0.6Sr0.4)0.95Co0.2Fe0.8O3+δ nanofiber cathode prepared by electrospinning demonstrates excellent oxygen reduction reaction (ORR) activity, as reflected reduced polarization resistance and diminished activation energy. ORR enhancement can be attributed to the efficient mass/charge transfer. Further, electrode shows good durability under operation conditions of solid oxide fuel cells. As a service our authors readers, this journal provides supporting information supplied authors. Such...

10.1002/aenm.201601890 article EN Advanced Energy Materials 2016-11-17

Nanosized Mn additives inhibiting Sn coarsensing enable fast interdiffusion kinetics in Sn/Li<sub>2</sub>O interfaces for highly reversible conversion lithiated SnO<sub>2</sub>.

10.1039/c7ee01635b article EN Energy & Environmental Science 2017-01-01

Abstract To achieve high ionic conductivity for solid electrolyte, an artificial Li‐rich interface layer of about 60 nm thick has been constructed in polymer‐based poly(ethylene oxide)‐lithium bis(trifluoromethanesulfonyl)imide composite electrolyte (briefly noted as PEO m ) by adding Li‐based alloys. As revealed high‐resolution transmission electron microscopy and energy loss spectroscopy, amorphous feature is created around the alloy particles with gradient distribution Li across it....

10.1002/adma.202004711 article EN Advanced Materials 2021-01-29

SiO-based materials represent a promising class of anodes for lithium-ion batteries (LIBs), with high theoretical capacity and appropriate safe Li-insertion potential. However, SiO experiences large volume change during the electrochemical reaction, low Li diffusivity, electron conductivity, resulting in degradation rate capability LIBs. Here, we report on rapid crafting SiO–Sn2[email protected] composites via one-step plasma milling process, leading to an alloy Sn Fe turn refining Sn2Fe...

10.1016/j.esci.2022.10.006 article EN cc-by-nc-nd eScience 2022-11-11

Abstract All‐solid‐state lithium batteries (ASSLBs) have become a recent research hotspot because of their excellent safety performance. In order to better reflect superiority, high‐voltage cathodes should be applied enhance the energy density solid compete with commercial liquid batteries. However, introduction suffers from many problems, such as low electrochemical stability, inferior interface chemical stability between cathode and electrolyte, poor mechanical contact, gas evolution....

10.1002/aenm.202301230 article EN Advanced Energy Materials 2023-07-30

Mesoporous Mo<sub>2</sub>C/N-doped carbon heteronanowires are reported with high capacity and long-term cycle life as anode materials for Li-ion batteries.

10.1039/c6ta03083a article EN Journal of Materials Chemistry A 2016-01-01

Plasma-assisted milled Si/graphene nanocomposite anode delivers high capacity and good cycleability in half full cells using a LiMn<sub>2</sub>O<sub>4</sub> cathode.

10.1039/c4ta01013b article EN Journal of Materials Chemistry A 2014-01-01

The MOFs (metal-organic frameworks) have been extensively used for electrode materials due to their high surface area, permanent porosity, and hollow structure, but the role of antimony on is unclear. In this work, we design spheres Ni-MOFs with SbCl3 synthesize NiSb⊂CHSs (NiSb-embedded carbon spheres) via simple annealing galvanic replacement reactions. inherited advantages NiSb nanoparticles are coated by formed particles which could effectively solve problem vigorous volume changes during...

10.1021/acsami.6b14233 article EN ACS Applied Materials & Interfaces 2016-12-27
Coming Soon ...