Xiangdong Xu

ORCID: 0000-0002-1120-4661
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About
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Research Areas
  • Advancements in Battery Materials
  • Electrochemical Analysis and Applications
  • Advanced Battery Technologies Research
  • Electron and X-Ray Spectroscopy Techniques
  • Machine Learning in Materials Science
  • Advanced Battery Materials and Technologies
  • Drilling and Well Engineering
  • Hydraulic Fracturing and Reservoir Analysis
  • Supercapacitor Materials and Fabrication
  • Conducting polymers and applications
  • Advanced Memory and Neural Computing
  • Analytical Chemistry and Sensors
  • Machine Learning and ELM
  • Semiconductor materials and interfaces
  • Mechanical Behavior of Composites
  • Fiber-reinforced polymer composites
  • Electrocatalysts for Energy Conversion
  • Enhanced Oil Recovery Techniques
  • Advanced battery technologies research
  • MXene and MAX Phase Materials
  • Electrochemical sensors and biosensors
  • Force Microscopy Techniques and Applications
  • Reservoir Engineering and Simulation Methods
  • Textile materials and evaluations
  • Advanced biosensing and bioanalysis techniques

University of Warwick
2020-2024

China University of Petroleum, Beijing
2020-2021

China University of Petroleum, East China
2018-2019

State Key Laboratory of Heavy Oil
2018-2019

MEI Research (United States)
2005

Molybdenum (Mo)-based compounds with properly engineered nanostructures usually possess improved reversible lithium storage capabilities, which offer great promise to boost the performance of lithium-ion batteries (LIBs). Nevertheless, a lack efficient and high-yield methods for constructing rational has largely restricted application these potentially important materials. Herein we demonstrate metal–organic frameworks (MOFs) mediated strategy successfully synthesize series one-dimensional...

10.1021/acsnano.7b09175 article EN ACS Nano 2018-02-09

Revealing how formation protocols influence the properties of solid-electrolyte interphase (SEI) on Si electrodes is key to developing next generation Li-ion batteries. SEI understanding is, however, limited by low-throughput nature conventional characterisation techniques. Herein, correlative scanning electrochemical cell microscopy (SECCM) and shell-isolated nanoparticles for enhanced Raman spectroscopy (SHINERS) are used combinatorial screening under a broad experimental space (20 sets...

10.1002/anie.202207184 article EN Angewandte Chemie International Edition 2022-06-14

Anatase TiO2 is a promising material for Li-ion (Li+ ) batteries with fast charging capability. However, Li+ (de)intercalation dynamics in remain elusive and reported diffusivities span many orders of magnitude. Here, we develop smart protocol scanning electrochemical cell microscopy (SECCM) situ optical (OM) to enable the high-throughput charge/discharge analysis single nanoparticle clusters. Directly probing active nanoparticles revealed that size ≈50 nm can store over 30 % theoretical...

10.1002/anie.202214493 article EN cc-by-nc-nd Angewandte Chemie International Edition 2022-12-05

Correlative co-located electrochemical multi-microscopy is transforming our understanding of property-function relationships in electrode materials. By coupling scanning cell microscopy (SECCM) with complementary characterization techniques applied to identical locations a surface, we can now unravel the intricate interplay between various physicochemical properties materials and interfaces their impact on phenomena, high spatial resolution. This review explores recent advances this...

10.1016/j.coelec.2023.101405 article EN cc-by Current Opinion in Electrochemistry 2023-09-30

Sodium-ion batteries (SIBs) attract more attention because of sodium's abundant availability, affordable price, and potential to be an effective anode material. Meanwhile, carbon-based materials provide the most promising materials. Because large radius sodium ions, SIBs do not exhibit favorable electrochemical performance. Introducing heteroatoms into carbon-lattice is strategy enlarge interlayer space which can improve carbon's In addition, with a surface-induced capacitive process enhance...

10.1021/acsami.8b15940 article EN ACS Applied Materials & Interfaces 2018-10-09

Understanding the solid electrolyte interphase (SEI) formation and (de)lithiation phenomena at silicon (Si) electrodes is key to improving performance lifetime of Si-based lithium-ion batteries. However, these processes remain somewhat elusive, and, in particular, role Si surface termination merits further consideration. Here, scanning electrochemical cell microscopy (SECCM) used a glovebox, followed by secondary ion mass spectrometry (SIMS) identical locations study local behavior...

10.1002/smll.202303442 article EN cc-by Small 2023-06-03

The development of Li metal batteries requires a detailed understanding complex nucleation and growth processes during electrodeposition.

10.1021/acsnano.4c05001 article EN cc-by ACS Nano 2024-08-13

Thin-film electrodes, produced by coating a conductive support with thin layer (nanometer to micrometer) of active material, retain the unique properties nanomaterials (e.g., activity, surface area, conductivity, etc.) while being economically scalable, making them highly desirable as electrocatalysts. Despite ever-increasing methods thin-film deposition wet chemical synthesis, electrodeposition, vapor deposition, etc.), there is insufficient understanding on nanoscale electrochemical...

10.1021/acsami.0c11759 article EN ACS Applied Materials & Interfaces 2020-09-03

Abstract Silicon is a promising negative electrode material for high‐energy‐density Li‐ion batteries (LiBs) but suffers from significant degradation due to the mechanical stress induced by lithiation. Volume expansion and lithiation in Si are strongly anisotropic associated early interfacial transformations linked these phenomena their implications performance remain poorly understood. Here we develop novel correlative electrochemical multi‐microscopy approach study local at stages three...

10.1002/ntls.20210607 article EN cc-by Natural Sciences 2023-03-13

Thermochemical redox catalysis is critical to a wide array of key chemical transformations and known be sensitive catalyst surface structure. Yet there exist limited operando tools for quantitatively imaging heterogeneities in catalytic rate across surface. Since many thermochemical reactions can proceed via the coupling electrochemical half-reactions, microscopies can, principle, used image catalysis. Herein, we develop methodology variations using microscopy. Using Pt-catalyzed aerobic...

10.26434/chemrxiv-2024-0ws9m preprint EN cc-by-nc-nd 2024-07-30

Abstract Revealing how formation protocols influence the properties of solid‐electrolyte interphase (SEI) on Si electrodes is key to developing next generation Li‐ion batteries. SEI understanding is, however, limited by low‐throughput nature conventional characterisation techniques. Herein, correlative scanning electrochemical cell microscopy (SECCM) and shell‐isolated nanoparticles for enhanced Raman spectroscopy (SHINERS) are used combinatorial screening under a broad experimental space...

10.1002/ange.202207184 article EN Angewandte Chemie 2022-06-14

Some deepwater gas reservoirs with high temperature and pressure have obvious stress sensitivity effect resulting in difficulty well test interpretations. The influence of on the drawdown is discussed many papers. However, buildup barely discussed. For practices oilfields, quality data from stage poor due to production fluctuation. Thus, used for interpretations most cases. In order analyze test, this paper establishes a composite reservoir model considering hysteresis effect. Numerical...

10.1155/2021/5054246 article EN cc-by Geofluids 2021-12-15

Abstract Anatas‐TiO2 ist ein vielversprechendes Material für Li‐Ionen‐Batterien (Li + ) mit Schnellladefähigkeit. Die (De‐)Interkalationsdynamik von Li in TiO 2 jedoch nach wie vor schwer fassbar, und die beschriebenen Diffusivitäten überspannen viele Größenordnungen. Wir entwickeln intelligentes Protokoll rasterelektrochemische Zellmikroskopie (SECCM) Kombination situ optischer Mikroskopie (OM), um Lade‐/Entladeanalyse einzelner ‐Nanopartikel‐Cluster hohem Durchsatz zu beobachten. direkte...

10.1002/ange.202214493 article DE cc-by-nc-nd Angewandte Chemie 2022-12-05

Scanning electrochemical probe microscopies (SEPMs) have played a key role in advancing small-scale electrochemistry. SEPMs use an (micro/nanoelectrode or pipet) to quantify and map local interfacial fluxes of electroactive species found increasingly wide applications. Our contribution the Fundamental Applied Reviews Analytical Chemistry 2019 discussed how advances converged towards nanoscale mapping. This inflection experimental capability has opened up myriad opportunities for many types...

10.26434/chemrxiv-2022-qn6dq preprint EN cc-by-nc 2022-11-15

Scanning electrochemical probe microscopies (SEPMs) have played a key role in advancing small-scale electrochemistry. SEPMs use an (micro/nanoelectrode or pipet) to quantify and map local interfacial fluxes of electroactive species found increasingly wide applications. Our contribution the Fundamental Applied Reviews Analytical Chemistry 2019 discussed how advances converged towards nanoscale mapping. This inflection experimental capability has opened up myriad opportunities for many types...

10.26434/chemrxiv-2022-qn6dq-v2 preprint EN cc-by-nc 2022-11-16
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