Xiaofeng Guo

ORCID: 0000-0003-3129-493X
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Radioactive element chemistry and processing
  • Nuclear materials and radiation effects
  • Nuclear Materials and Properties
  • Chemical and Physical Properties in Aqueous Solutions
  • Metal-Organic Frameworks: Synthesis and Applications
  • Zeolite Catalysis and Synthesis
  • Advanced ceramic materials synthesis
  • High Temperature Alloys and Creep
  • High-pressure geophysics and materials
  • Thermal and Kinetic Analysis
  • Microstructure and Mechanical Properties of Steels
  • Geological and Geochemical Analysis
  • Luminescence Properties of Advanced Materials
  • Chemical Synthesis and Characterization
  • Crystal Structures and Properties
  • Extraction and Separation Processes
  • Nuclear reactor physics and engineering
  • Catalysis and Hydrodesulfurization Studies
  • Catalytic Processes in Materials Science
  • Numerical methods in engineering
  • Metallurgy and Material Forming
  • Advanced Condensed Matter Physics
  • MXene and MAX Phase Materials

Washington State University
2017-2025

Dalian Medical University
2024-2025

Chengdu University of Technology
2020-2025

Inner Mongolia University of Science and Technology
2012-2025

Anhui Medical University
2024

Shanghai University
2019-2024

Shaanxi Normal University
2024

Huazhong Agricultural University
2024

Dalian University of Technology
2014-2024

First Affiliated Hospital of Anhui Medical University
2024

An organic-inorganic halide perovskite of CH3NH3SnI3 with significantly improved structural stability is obtained via pressure-induced amorphization and recrystallization. In situ high-pressure resistance measurements reveal an increased electrical conductivity by 300% in the pressure-treated perovskite. Photocurrent also a substantial enhancement visible-light responsiveness. The mechanism underlying enhanced properties demonstrated to be associated stability.

10.1002/adma.201600771 article EN Advanced Materials 2016-08-12

Intrinsic properties of a compound (e.g., electronic structure, crystallographic optical and magnetic properties) define notably its chemical physical behavior. In the case nanomaterials, these fundamental depend on occurrence quantum mechanical size effects considerable increase surface to bulk ratio. Here, we explore dependence both crystal CeO2 nanoparticles (NPs) with different sizes by state-of-the art spectroscopic techniques. X-ray diffraction, photoelectron spectroscopy, high-energy...

10.1021/acs.inorgchem.0c00506 article EN cc-by Inorganic Chemistry 2020-04-01

Nanoscale multi-principal element intermetallics (MPEIs) may provide a broad and tunable compositional space of active, high-surface area materials with potential applications such as catalysis magnetics. However, MPEI nanoparticles are challenging to fabricate because the tendency particles grow/agglomerate or phase-separated during annealing. Here, we demonstrate disorder-to-order phase transition approach that enables synthesis ultrasmall (4 5 nm) stable (up eight elements). We apply just...

10.1126/sciadv.abm4322 article EN cc-by-nc Science Advances 2022-01-28

Conventional nanomaterials in electrochemical nonenzymatic sensing face huge challenge due to their complex size-, surface-, and composition-dependent catalytic properties low active site density. In this work, we designed a single-atom Pt supported on Ni(OH)2 nanoplates/nitrogen-doped graphene (Pt1/Ni(OH)2/NG) as the first example for constructing catalyst based glucose sensor. The resulting Pt1/Ni(OH)2/NG exhibited anode peak potential of 0.48 V high sensitivity 220.75 μA mM–1 cm–2 toward...

10.1021/acs.analchem.1c04912 article EN Analytical Chemistry 2022-01-03

Metal-organic frameworks (MOFs) have been reported as promising materials for electrochemical applications owing to their tunable porous structures and ion-sieving capability. However, it remains challenging rationally design MOF-based electrolytes high-energy lithium batteries. In this work, by combining advanced characterization modeling tools, a series of nanocrystalline MOFs is designed, the effects pore apertures open metal sites on ion-transport properties stability MOF...

10.1002/adma.202211841 article EN cc-by-nc-nd Advanced Materials 2023-05-03

It is critical to develop high-performance electrocatalyst for electrochemical nonenzymatic glucose sensing. In this work, a single-atom Pt supported on Cu@CuO core-shell nanowires (Pt1 /Cu@CuO NWs) sensor designed. Pt1 NWs exhibit excellent electrocatalytic oxidation toward with 70 mV lower onset potential (0.131 V) and 2.4 times higher response current than Cu NWs. Sensors fabricated using also show high sensitivity (852.163 µA mM-1 cm-2 ), low detection limit (3.6 µM), wide linear range...

10.1002/smll.202207240 article EN Small 2023-01-26

Two novel thorium-based metal-organic frameworks (MOFs), namely Th-SINAP-7 and Th-SINAP-8, have been synthesized via the solvothermal reactions of thorium nitrate 1,4- or 2,6-naphthalenedicarboxylic acid in presence modulators. Bearing rigid aromatic architectures, Th-SINAP-8 exhibit exceptional chemical (from pH 1 to 12) thermal stabilities (up 520 °C), as well ionizing radioresistance (2 × 105 Gy β γ irradiations). The highly porous nature conjugated π-electrons naphthalene on organic...

10.1021/acs.inorgchem.9b03602 article EN Inorganic Chemistry 2020-03-13

Isoreticular expansion of Th-MOFs <italic>via</italic> modulated synthesis yielded seven hierarchical complexes with superior quality single crystals, record high void space and BET surface area among Th materials, exceptional iodine adsorption capacities.

10.1039/d0cc02841j article EN Chemical Communications 2020-01-01

Metal halide perovskites possess unique atomic and electronic configurations that endow them with high defect tolerance enable high-performance photovoltaics optoelectronics. Perovskite light-emitting diodes have achieved an external quantum efficiency of over 20%. Despite tremendous progress, fundamental questions remain, such as how structural distortion affects the optical properties. Addressing their relationships is considerably challenging due to scarcity effective diagnostic tools...

10.1093/nsr/nwaa288 article EN cc-by National Science Review 2020-11-27

Developing materials that possess colorimetric responses to external stimuli is a promising strategy for addressing the current challenges in radiation dosimetry. Currently, ionizing-radiation-responsive remain underexplored, and those with multistimuli response are rare. Herein, integration of thorium cation photoresponsive terpyridine carboxylate ligand gives rise nanocluster, Th-101, which displays second case fluorochromic unprecedented piezochromic behavior among all actinide materials....

10.1021/jacs.1c11496 article EN Journal of the American Chemical Society 2022-01-20

Solids can be generally categorized by their structures into crystalline and amorphous states with different interactions among atoms dictating properties. Crystalline-amorphous hybrid structures, combining the advantages of both ordered disordered components, present a promising opportunity to design materials emergent collective Hybridization at sublattice level long-range periodicity has been rarely observed. Here, we report nested order-disorder framework (NOF) constructed matrix...

10.1038/s41467-022-32419-5 article EN cc-by Nature Communications 2022-08-09

This study investigated the effect of removing proteins, lipids and starch on structure, physicochemical properties digestion rice flour (with 30% moisture) treated with heat moisture treatment (HMT). According to results, HMT caused adhesion agglomeration flour, promoted binding between starch, protein lipid molecular chains led formation complexes (especially starch-lipid complexes), which hindered removal non-starch components. Compared untreated lipid-removal had small changes in their...

10.1016/j.fochx.2023.100785 article EN cc-by-nc-nd Food Chemistry X 2023-07-05

Abstract Herein, we present a unified chemical synthesis of three subgroups cephalotaxus diterpenoids. Key to the success lies in adopting synthetic strategy that is inspired by biosynthesis but opposite nature. By employing selective one‐carbon introduction and ring expansion operations, have successfully converted cephalotane‐type C 18 dinorditerpenoids (using cephanolide B as starting material) into troponoid‐type 19 norditerpenoids intact 20 This approach has enabled us synthesize...

10.1002/anie.202402931 article EN Angewandte Chemie International Edition 2024-03-26

P2-type Na2/3Ni1/3Mn2/3O2 (PNNMO) has been extensively studied because of its desirable electrochemical properties as a positive electrode for sodium-ion batteries. PNNMO exhibits intralayer transition-metal ordering Ni and Mn Na+/vacancy ordering. The is often considered major impediment to fast Na+ transport can be affected by We show neutron/X-ray diffraction density functional theory (DFT) calculations that Li doping (Na2/3Li0.05Ni1/3Mn2/3O2, LFN5) promotes ABC-type interplanar Ni/Mn...

10.1021/jacs.4c00869 article EN cc-by Journal of the American Chemical Society 2024-05-02

Abstract High‐temperature calorimetry (HTC) originated in the 20th century as a niche method to enable measurements not easily accomplished with acid solution calorimetry, combustion vapor pressure, or EMF methods. Over time, HTC has evolved into versatile approach accurately quantify formation, phase transition, surface and interfacial enthalpies of wide range materials including minerals refractory inorganic compounds. This evolution been result numerous adjustments experimental setups...

10.1111/jace.20381 article EN Journal of the American Ceramic Society 2025-02-17

Coffinite, USiO4, is an important U(IV) mineral, but its thermodynamic properties are not well-constrained. In this work, two different coffinite samples were synthesized under hydrothermal conditions and purified from a mixture of products. The enthalpy formation was obtained by high-temperature oxide melt solution calorimetry. Coffinite energetically metastable with respect to UO2 (uraninite) SiO2 (quartz) 25.6 ± 3.9 kJ/mol. Its standard the elements at 25 °C -1,970.0 4.2 Decomposition...

10.1073/pnas.1507441112 article EN Proceedings of the National Academy of Sciences 2015-05-11

MXenes are ultra-thin two-dimensional layered early transition-metal carbides and nitrides with potential applications in various emerging technologies, such as energy storage, water purification, catalysis. synthesized from the parent MAX phases different etching agents [hydrofluoric acid (HF) or fluoride salts a strong acid] by selectively removing more weakly bound crystalline layer of Al Ga replaced surface groups (-O, -F, -OH, etc.). Ti3C2Tx MXene CoF2/HCl has heterogeneity due to...

10.1021/acsami.2c09669 article EN ACS Applied Materials & Interfaces 2022-08-30

Abstract Recovering platinum group metals from secondary resources is crucial to meet the growing demand for high‐tech applications. Various techniques are explored, and adsorption using porous materials has emerged as a promising technology due its efficient performance environmental beingness. However, challenge lies in effectively recovering separating individual (PGMs) given their similar chemical properties. Herein, breakthrough approach presented by sophisticatedly tailoring...

10.1002/adma.202313747 article EN Advanced Materials 2024-04-30

Metastudtite, (UO2)O2(H2O)2, is one of two known natural peroxide minerals, but little established about its thermodynamic stability. In this work, standard enthalpy formation, -1,779.6 ± 1.9 kJ/mol, was obtained by high temperature oxide melt drop solution calorimetry. Decomposition synthetic metastudtite characterized thermogravimetry and differential scanning calorimetry (DSC) with ex situ X-ray diffraction analysis. Four decomposition steps were observed in oxygen atmosphere: water loss...

10.1073/pnas.1421144111 article EN Proceedings of the National Academy of Sciences 2014-11-24

The garnet structure is a promising nuclear waste form because it can accommodate various actinide elements. Yttrium iron garnet, Y3Fe5O12 (YIG), model composition for such substitutions. Since cerium (Ce) be considered an analogue of elements as thorium (Th), plutonium (Pu), and uranium (U), studying the local thermodynamic stability Ce-substituted YIG (Ce:YIG) provide insights into structural energetic aspects large ion substitution in garnets. Single phases with Ce up to 20 mol %...

10.1021/cm403444f article EN Chemistry of Materials 2013-12-27

Conventional wisdom holds that aqueous solutions are the only non-magmatic fluids capable of concentrating metals in Earth's crust.The role hydrocarbons metal concentration is relegated to providing geochemical barriers at which reduced and immobilised.Liquid hydrocarbons, however, also known be able carry appreciable concentrations metals, travel considerable distances.Here we report results an experimental determination bulk solubilities Au, Zn, U a variety crude oils temperatures up 300...

10.7185/geochemlet.1745 article EN cc-by-nc-nd Geochemical Perspectives Letters 2017-12-01
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