A5060198927- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Perovskite Materials and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Electrocatalysts for Energy Conversion
- 2D Materials and Applications
- Advanced Battery Technologies Research
- Metal-Organic Frameworks: Synthesis and Applications
- Catalytic Processes in Materials Science
- Covalent Organic Framework Applications
- Advanced battery technologies research
- Crystallography and molecular interactions
- Electronic and Structural Properties of Oxides
- Fusion materials and technologies
- Nuclear Materials and Properties
- Luminescence Properties of Advanced Materials
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- Energetic Materials and Combustion
- Magnetic and transport properties of perovskites and related materials
- Chalcogenide Semiconductor Thin Films
- Solid-state spectroscopy and crystallography
ShanghaiTech University
2015-2025
South China University of Technology
2018-2025
Anhui University
2018-2025
Gannan Normal University
2016-2024
University of Science and Technology of China
2024
Zhengzhou University
2022-2024
Zhejiang University of Technology
2024
Rutgers, The State University of New Jersey
2024
Shandong Normal University
2023
Bridge University
2023
Flat perovskite crystals Bulk and thick films of inorganic-organic materials such as CH 3 NH PbI have shown promise active material for solar cells. Dou et al. show that thin films—a single unit cell or a few cells thick—of related composition, (C 4 H 9 ) 2 PbBr , form squares with edges several micrometers long. These exhibit strong tunable blue photoluminescence. Science this issue p. 1518
Whereas standard transmission electron microscopy studies are unable to preserve the native state of chemically reactive and beam-sensitive battery materials after operation, such remain pristine at cryogenic conditions. It is then possible atomically resolve individual lithium metal atoms their interface with solid electrolyte interphase (SEI). We observe that dendrites in carbonate-based electrolytes grow along <111> (preferred), <110>, or <211> directions as faceted, single-crystalline...
Halide perovskites have attracted much attention over the past 5 years as a promising class of materials for optoelectronic applications. However, compared to hybrid organic-inorganic perovskites, study their pure inorganic counterparts, like cesium lead halides (CsPbX3), lags far behind. Here, catalyst-free, solution-phase synthesis CsPbX3 nanowires (NWs) is reported. These NWs are single-crystalline, with uniform growth direction, and crystallize in orthorhombic phase. Both CsPbBr3 CsPbI3...
A central topic in single-atom catalysis is building strong interactions between single atoms and the support for stabilization. Herein we report preparation of stabilized catalysts via a simultaneous self-reduction stabilization process at room temperature using ultrathin two-dimensional Ti3–xC2TyMXene nanosheets characterized by abundant Ti-deficit vacancy defects high reducing capability. The therein form metal–carbon bonds with Ti3–xC2Ty are therefore onto sites previously occupied Ti....
Precise control of elemental configurations within multimetallic nanoparticles (NPs) could enable access to functional nanomaterials with significant performance benefits. This can be achieved down the atomic level by disorder-to-order transformation individual NPs. Here, systematically controlling ordering degree, we show that transformation, applied AuCu NPs, activates them perform as selective electrocatalysts for CO2 reduction. In contrast disordered alloy NP, which is catalytically...
Here, we demonstrate the successful synthesis of brightly emitting colloidal cesium lead halide (CsPbX3, X = Cl, Br, I) nanowires (NWs) with uniform diameters and tunable compositions. By using highly monodisperse CsPbBr3 NWs as templates, NW composition can be independently controlled through anion-exchange reactions. CsPbX3 alloy a wide range compositions achieved well-preserved morphology crystal structure. The are luminescent photoluminescence quantum yields (PLQY) ranging from 20% to...
Conversion of the greenhouse gas carbon dioxide (CO2) to value-added products is an important challenge for sustainable energy research, and nanomaterials offer a broad class heterogeneous catalysts such transformations. Here we report molecular surface functionalization approach tuning gold nanoparticle (Au NP) electrocatalysts reduction CO2 CO. The N-heterocyclic (NHC) carbene-functionalized Au NP catalyst exhibits improved faradaic efficiency (FE = 83%) CO in water at neutral pH...
The nanowire and nanorod morphology offers great advantages for application in a range of optoelectronic devices, but these high-quality arrays are typically based on high temperature growth techniques. Here, we demonstrate the successful room hybrid perovskite (CH3NH3PbBr3) array, also introduce new low anion exchange technique to convert CH3NH3PbBr3 array into CH3NH3PbI3 while preserving morphology. We both LEDs. This work highlights potential utility postsynthetic interconversion...
Controlling the flow of thermal energy is crucial to numerous applications ranging from microelectronic devices storage and conversion devices. Here, we report ultralow lattice conductivities solution-synthesized, single-crystalline all-inorganic halide perovskite nanowires composed CsPbI3 (0.45 ± 0.05 W·m-1·K-1), CsPbBr3 (0.42 0.04 CsSnI3 (0.38 W·m-1·K-1). We attribute this conductivity cluster rattling mechanism, wherein strong optical-acoustic phonon scatterings are driven by a mixture...
Significance Natural photosynthesis, a process of solar-to-chemical conversion, uses light, water, and carbon dioxide to generate the chemical products needed sustain life. Here we report strategy inspired by photosynthesis in which compatible inorganic biological components are used transform value-added product methane. Specifically, this conversion platform interfaces photoactive materials that produce hydrogen from water sunlight with microorganisms consume sustainably derived drive...
Highly uniform single crystal ultrathin CsPbBr3 nanowires (NWs) with diameter of 2.2 ± 0.2 nm and length up to several microns were successfully synthesized purified using a catalyst-free colloidal synthesis method followed by stepwise purification strategy. The NWs have bright photoluminescence (PL) quantum yield (PLQY) about 30% after surface treatment. Large blue-shifted UV–vis absorption PL spectra been observed due strong two-dimensional confinement effects. A small angle X-ray...
Abstract Gold, silver, platinum and palladium typically crystallize with the face-centred cubic structure. Here we report high-yield solution synthesis of gold nanoribbons in 4H hexagonal polytype, a previously unreported metastable phase gold. These undergo transition from original to structure on ligand exchange under ambient conditions. Using monochromated electron energy-loss spectroscopy, strong infrared plasmon absorption single is observed. Furthermore, phases can be readily...
Conversion of carbon dioxide to C2-C4 hydrocarbons is a major pursuit in clean energy research. Despite tremendous efforts, the lack well-defined catalysts which spatial arrangement interfaces precisely controlled hinders development more efficient and in-depth understanding reaction mechanisms. Herein, we utilized strategy tandem catalysis develop nanostructured catalyst CeO2-Pt@mSiO2-Co for converting CO2 using two metal-oxide interfaces. are found be produced with high (60%) selectivity,...
In recent years, an increasing amount of interest has been dedicated to the synthesis and application ZIF-67-based materials due their exceptionally high surface area, tunable porosity, excellent thermal chemical stabilities. This review summarizes latest strategies synthesizing by exploring prominent examples. Then, progress in applications heterogeneous catalysis, including catalysis redox reactions, addition esterification Knoevenagel condensations, hydrogenation–dehydrogenation...
Colloidal metal nanowire based transparent conductors are excellent candidates to replace indium-tin-oxide (ITO) owing their outstanding balance between transparency and conductivity, flexibility, solution-processability. Copper stands out as a promising material candidate due its high intrinsic conductivity earth abundance. Here, we report new synthetic approach, using tris(trimethylsilyl)silane mild reducing reagent, for synthesizing high-quality, ultrathin, monodispersed copper nanowires,...
The electrochemical reduction of CO2 to produce carbon-based fuels and chemicals possesses huge potentials alleviate current environmental problems. However, it is confronted by great challenges in the design active electrocatalysts with low overpotentials high product selectivity. Here we report atomic tuning a single-Fe-atom catalyst phosphorus (Fe-N/P-C) on commercial carbon black as robust electrocatalyst for reduction. Fe-N/P-C exhibits impressive performance CO, Faradaic efficiency 98%...
Solar-driven photocatalytic reactions can mildly activate hydrocarbon C-H bonds to produce value-added chemicals. However, the inefficient utilization of photogenerated carriers hinders application. Here, we report reversible photochromic BiOBr (denoted as p-BiOBr) nanosheets that were colored by trapping holes upon visible light irradiation and bleached water oxidation generate hydroxyl radicals, demonstrating enhanced carrier separation oxidation. The coupling ethylbenzene efficiently...
Platinum-based alloys are known to demonstrate advanced properties in electrochemical reactions that relevant for proton exchange membrane fuel cells and electrolyzers. Further development of Pt alloy electrocatalysts relies on the design architectures with highly active surfaces optimized utilization expensive element, Pt. Here, we show three-dimensional anisotropy Pt–Ni rhombic dodecahedra can be tuned by controlling ratio between Ni precursors such either a completely hollow nanoframe or...
Controllable synthesis of ultrasmall atomically ordered intermetallic nanoparticles is a challenging task, owing to the high temperature commonly required for formation phases. Here, metal-organic framework (MOF)-confined co-reduction strategy developed preparation sub-2 nm PdZn nanoparticles, by employing well-defined porous structures calcinated ZIF-8 (ZIF-8C) and an in situ therein. HAADF-STEM, HRTEM, EDS characterizations reveal homogeneous dispersion these within ZIF-8C frameworks. XRD,...
Abstract Metallic lithium (Li), considered as the ultimate anode, is expected to promise high‐energy rechargeable batteries. However, owing continuous Li consumption during repeated plating/stripping cycling, excess amount of metal anode commonly utilized in lithium‐metal batteries (LMBs), leading reduced energy density and increased cost. Here, an all‐solid‐state battery (ASSLMB) based on a garnet‐oxide solid electrolyte with ultralow negative/positive electrode capacity ratio (N/P ratio)...