Long Qu

ORCID: 0000-0001-8485-1520
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About
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Research Areas
  • Advanced Battery Materials and Technologies
  • Advancements in Battery Materials
  • Advanced Battery Technologies Research
  • Seismic Imaging and Inversion Techniques
  • Extraction and Separation Processes
  • Drilling and Well Engineering
  • Matrix Theory and Algorithms
  • Seismic Waves and Analysis
  • Advanced battery technologies research
  • MXene and MAX Phase Materials
  • Coding theory and cryptography
  • Advanced Numerical Methods in Computational Mathematics
  • Medical Imaging Techniques and Applications
  • Conducting polymers and applications
  • graph theory and CDMA systems
  • Supercapacitor Materials and Fabrication
  • Ionic liquids properties and applications
  • Hydraulic Fracturing and Reservoir Analysis
  • Electromagnetic Scattering and Analysis
  • Geoscience and Mining Technology
  • Numerical Methods and Algorithms
  • Covalent Organic Framework Applications
  • Cryptographic Implementations and Security
  • Thermal Expansion and Ionic Conductivity
  • Advanced Technologies in Various Fields

Sichuan University
2024-2025

State Key Laboratory of Hydraulics and Mountain River Engineering
2024-2025

Renmin University of China
2024

Ningbo University
2024

Chongqing University of Science and Technology
2023

Tianjin Academy of Environmental Sciences
2023

East China University of Science and Technology
2023

Sichuan University of Arts and Science
2022-2023

King Abdullah University of Science and Technology
2022

Xi'an Jiaotong University
2017-2021

The safety problems of lithium ion batteries (LIBs) have been the main obstacles that hinder their broad applications in portable electronic devices, electric vehicles, and energy storage. Such originate from flammable solvent-containing liquid electrolytes could be easily oxidized upon excessive heat, leading to further heat accumulation and, subsequently, thermal runaway. design strategies a safe electrolyte control flammability volatility electrolyte, might prevent runaway, ultimately...

10.1021/acs.chemmater.0c02428 article EN Chemistry of Materials 2020-11-20

Developing safe and high-energy-density lithium metal batteries (LMBs) is considered to be the focus of next-generation rechargeable batteries. However, inevitable reaction with liquid electrolyte subsequent formation Li dendrites must overcome, upgrading traditional electrolytes a key strategy for achieving this goal. Here, we report nano-SiO2-supported gel polymer (SiO2-GPE) hierarchical structure fabricated via in situ gelation organic supported on functionally modified SiO2 layer, which...

10.1021/acsenergylett.0c00412 article EN ACS Energy Letters 2020-04-22

Abstract Decay in electrochemical performance resulting from the “shuttle effect” of dissolved lithium polysulfides is one biggest obstacles for realization practical applications lithium–sulfur (Li–S) batteries. To meet this challenge, a 2D g‐C 3 N 4 /graphene sheet composite (g‐C /GS) was fabricated as an interlayer sulfur/carbon (S/KB) cathode. It forms laminated structure channels to trap by physical and chemical interactions. The thin /GS significantly suppresses diffusion polysulfide...

10.1002/cssc.201802449 article EN ChemSusChem 2018-11-28

Lithium–sulfur batteries are considered as the most promising candidate for next-generation energy storage devices. However, they subjected to "shuttle effect" of soluble lithium polysulfides (LiPSs). Herein, a free-standing membrane composed two-dimensional MXene material (Ti3C2Tx) and graphene oxide (GO) is synthesized by simple vacuum-filtration method. X-ray diffraction, scanning electron microscopy, transmission microscopy carried out determine structure, morphology, composition...

10.1021/acsaem.9b02385 article EN ACS Applied Energy Materials 2020-02-21

Solid-state electrolytes are actively sought for their potential application in energy storage devices, especially lithium metal rechargeable batteries. However, one of the key challenges development solid-state is lower ionic conductivity compared with that liquid (10–2 S cm–1 at room temperature), where a large gap still exists. Therefore, pursuit high equal to remains main objective design electrolytes. Here, we show series high-charge density polymerized networks as take inspiration from...

10.1021/acsami.8b19743 article EN ACS Applied Materials & Interfaces 2019-01-04

Abstract Lithium–sulfur (Li‐S) batteries have become one of the most promising candidates as next‐generation batteries, owing to their high specific capacity, low cost, and environmental benignity. Although many strategies been proposed restrain shuttle lithium polysulfides (LiPSs) through physical trapping chemical binding, sluggish kinetics PS conversion still degrade rate, cycling performance Li‐S batteries. Herein, a novel kind few‐layer BN with engineered nitrogen vacancies (v‐BN) has...

10.1002/chem.201900884 article EN Chemistry - A European Journal 2019-04-16

Aiming at the shortcomings of BP neural network in practical applications, such as easy to fall into local extremum and slow convergence speed, we optimized initial weights thresholds using particle swarm optimization (PSO). Additionally, cloud computing service, web technology, database numerical simulation were integrated construct an intelligent feedback analysis program for underground engineering safety monitoring based on PSO-BP algorithm. The could conveniently, quickly, intelligently...

10.1038/s41598-024-65556-6 article EN cc-by Scientific Reports 2024-06-22

Graphite/LiFePO<sub>4</sub>cells using a safe electrolyte achieved electrochemical performances close to those of the cells conventional electrolytes.

10.1039/c5ta05242d article EN Journal of Materials Chemistry A 2015-01-01

Rotation symmetric Boolean functions (RSBFs) that are invariant under circular translation of indices have been used as components different cryptosystems. In this paper, even-variable-balanced RSBFs with maximum algebraic immunity (AI) investigated. At first, we give an original construction 2m-variable-balanced AI. Then improve the to obtain more AI, and these new higher non-linearity than all previously obtained RSBFs. Further, generalise our 2m-variable a can generate any even-variable

10.1049/iet-ifs.2010.0048 article EN IET Information Security 2011-06-14

Abstract Despite a high energy density and specific capacity, the commercial implementation of lithium‐sulfur batteries still suffers from severe polysulfide shuttle. Numerous efforts have been made to confine species through physical adsorption chemical bonding. Nevertheless, accumulation is also ascribed slow redox kinetics. Herein, we design kind MoO 3‐x nanobelt with abundant engineered oxygen defects (ODs) on surface promote kinetics as cathode matrix for Li−S batteries. On one hand,...

10.1002/cnma.201900157 article EN ChemNanoMat 2019-05-01

The high water head of some pumped storage power stations will induce the cracking concrete lining their diversion tunnel and leakage high-pressure water, which affect safety surrounding rock. At present, there is no solution to problem impermeability materials after cracking. This paper proposes a composite solve this problem. with modified polydimethylsiloxane coating can effectively prevent but its crack resistance needs be further studied. Therefore, tensile mechanical properties,...

10.3390/app15116132 article EN cc-by Applied Sciences 2025-05-29

Abstract Lithium−sulfur (Li−S) batteries with ultrahigh theoretical specific capacity (1675 mAh g −1 ) have become a research hotpot, which focuses on the solution of shuttle effect soluble lithium polysulfides (LIPS). Chemical immobilization LIPS and encapsulation structure sulfur cathode are effective strategies to suppress effect. Herein, high entropy metal nitride (HEMN) was prepared by mechanochemical‐assisted synthesis as an innovative anchor restrain via chemical bonding interaction...

10.1002/celc.202001215 article EN ChemElectroChem 2020-11-16

10.1016/j.colsurfa.2023.132137 article EN Colloids and Surfaces A Physicochemical and Engineering Aspects 2023-07-26

Li/LiFePO<sub>4</sub>cells using safe electrolytes composed of ether-functionalized ILs and non-flammable methylperfluorobutylether showed good rate performance.

10.1039/c5ra01713k article EN RSC Advances 2015-01-01
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