Zhijun Cai

ORCID: 0009-0007-8400-2204
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About
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Research Areas
  • Advanced Battery Materials and Technologies
  • Supercapacitor Materials and Fabrication
  • Advanced battery technologies research
  • Advancements in Battery Materials
  • Advanced Battery Technologies Research
  • Metal-Organic Frameworks: Synthesis and Applications
  • Adsorption and biosorption for pollutant removal
  • Analytical Chemistry and Chromatography
  • Nanomaterials for catalytic reactions
  • Mesoporous Materials and Catalysis
  • Electrocatalysts for Energy Conversion
  • Chemical Synthesis and Characterization
  • Nuclear Physics and Applications
  • Smart Materials for Construction
  • Fuel Cells and Related Materials
  • Layered Double Hydroxides Synthesis and Applications
  • Coal and Its By-products
  • Industrial Vision Systems and Defect Detection
  • Fault Detection and Control Systems
  • Geoscience and Mining Technology
  • Advanced Chemical Sensor Technologies
  • Electrochemical sensors and biosensors
  • Advancements in Solid Oxide Fuel Cells
  • Covalent Organic Framework Applications
  • Phosphorus and nutrient management

Chinese University of Hong Kong
2024-2025

Tsinghua University
2023

Wuhan University of Technology
2017-2021

Anhui University of Technology
2015

Shanghai Jiao Tong University
2011-2012

A lithium-ion polymer battery using the lithiated perfluorinated sulfonic ion-exchange membranes swollen with organic non-aqueous solvent as both separator and electrolyte is demonstrated, shows very good capacity retention compared conventional liquid electrolyte.

10.1039/c1ee02708e article EN Energy & Environmental Science 2011-12-13

We used bipolar membranes (BMs) as separators in aqueous zinc-ion batteries to decouple the electrolyte, which increased H+ concentration catholyte and OH– anolyte when cycling starting. An ultra-long running time of ∼4440 h was achieved due significantly enhanced insertion cathode formation Znx(OTf)y(OH)2x-y·nH2O protective layers on zinc anode.

10.1021/acsenergylett.0c02683 article EN ACS Energy Letters 2021-01-27

Abstract Resting, a common procedure performed before cycling, is identified to have significant impact on the cycle performance of acidic aqueous zinc‐ion batteries (AZBs). It demonstrated that resting duration significantly affects Zn anode's cyclability and closely related evolution zinc hydroxide sulfate (ZHS), byproduct formed anode in AZBs, even without electrochemical cycling. Mechanism analysis suggests both uniformity quantity ZHS are critical factors determining electrode's cycling...

10.1002/adfm.202401367 article EN cc-by-nc Advanced Functional Materials 2024-05-07

Abstract Aqueous Zn‐ion batteries are an attractive electrochemical energy storage solution for their budget and safe properties. However, dendrites uncontrolled side reactions in anodes detract the cycle life density of batteries. Grain boundaries metals generally considered as source above problems but we present a diverse result. This study introduces ultra‐high proportion grain on zinc electrodes through femtosecond laser bombardment to enhance stability metal/electrolyte interface. The...

10.1002/anie.202406292 article EN Angewandte Chemie International Edition 2024-05-23

High ionic conductivity exceeding 10−3 S cm−1 at room temperature is achieved with lithiated perfluorinated sulfonic acid (PFSA-Li) ion exchange membranes by swelling in nonaqueous organic solvents. The dependence of on the membrane equivalent weight, solvent uptake, properties including viscosity and dielectric constant investigated for PFSA-Li membranes. high performance Li-ion battery using as both electrolyte separator demonstrated. This new shows very good thermal stability cyclic...

10.1039/c2ee22753c article EN Energy & Environmental Science 2012-01-01

An ammonium persulfate-assisted hydrothermal strategy was successfully used to prepare carbon microspheres with excellent dispersibility from sucrose rapidly. The method can also be extended glucose, starch and sunflower seed shells.

10.1039/c9ta05557f article EN Journal of Materials Chemistry A 2019-01-01

Abstract Aqueous Zn‐ion batteries are an attractive electrochemical energy storage solution for their budget and safe properties. However, dendrites uncontrolled side reactions in anodes detract the cycle life density of batteries. Grain boundaries metals generally considered as source above problems but we present a diverse result. This study introduces ultra‐high proportion grain on zinc electrodes through femtosecond laser bombardment to enhance stability metal/electrolyte interface. The...

10.1002/ange.202406292 article EN Angewandte Chemie 2024-05-23

ABSTRACT Glass fiber (GF) is a widely used separator in zinc‐metal batteries, and its geometrical configuration significantly affects the battery's cycle performance. However, underlying mechanisms remain unclear. In this study, we examine how separator's geometry influences battery life, which determined by competition between internal short circuits caused Zn dendrite growth deteriorated charge transfer during repeated electrochemical cycling—both of are affected configuration. As...

10.1002/bte2.20240107 article EN cc-by Battery energy 2025-04-01

Abstract By surface‐decorating a conventional polypropylene separator with porous red phosphorus nanosheet, it is demonstrated exceptional cycling performance of the Li metal electrode in both Li||Li symmetric cells, achieving over 9000 h cycle life at 20 mA cm −2 and 10 , as well (20 µm)||LiFePO 4 full which exhibited 95% capacity retention after 400 cycles 2C rate. Experimental evidence theoretical calculations attribute ultra‐long stability to unique structural, chemical, electronic...

10.1002/adfm.202501402 article EN cc-by-nc-nd Advanced Functional Materials 2025-05-07

In the past decade, mass spectrometry (MS) has been widely used for a broad range of on-site applications. This is largely attributed to rapid advancement technologies, such as ambient ionization and spectrometer miniaturization. Here, we report development temperature-tuning desorption (TTDI) method versatile applications using miniature MS system. A unique feature TTDI its dynamic temperature applicable from 30 800 °C, which enables optimal applied chemical biological compounds through...

10.1021/acs.analchem.3c01942 article EN Analytical Chemistry 2023-07-11

Amino organosilane <italic>N</italic>-(β-aminoethyl)-γ-aminopropylmethylbimethoxysilane (2N) functionalized ordered mesoporous aluminas (MA–2N) with enhanced adsorption performance towards Cr(<sc>vi</sc>) were successfully prepare by a facile grafting method.

10.1039/c7ra10933d article EN cc-by-nc RSC Advances 2017-01-01

Abstract Tuning the uniformity and size of binary metal oxide nanodots on graphene (BMO NDs@GO) is significant but full challenges in wet‐chemistry, owing to difficulties controlling complicated cation/anion co‐adsorption, heterogeneous nucleation, overgrowth processes. Herein, aim tune these processes by understanding functions various alcohol solvents for NDs growth GO. It found that polyol solvation effect beneficial obtaining highly uniform BMO NDs@GO. Polyol shell capped ions exhibit...

10.1002/chem.201902697 article EN Chemistry - A European Journal 2019-09-05

Cu vanadate nanorods have been used as the glassy carbon electrode (GCE) modified materials for electrochemical detection of tartaric acid. The effects scan rate, acid concentration and electrolytes in behaviours KCl solution analysed. Two pairs semi-reversible cyclic voltammogram (CV) peaks are observed. CV located at +0.12 V, &minus;0.04 V (cvp1, cvp2) &minus;0.07 &minus;0.41 (cvp1&prime;, cvp2&prime;), respectively. intensity increases linearly with increase rate from 25 to 200...

10.1504/ijnbm.2015.073157 article EN International Journal of Nano and Biomaterials 2015-01-01
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