A5074975267- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Metal-Organic Frameworks: Synthesis and Applications
- Graphene research and applications
- Crystal structures of chemical compounds
- Magnetism in coordination complexes
- Supercapacitor Materials and Fabrication
- Polyoxometalates: Synthesis and Applications
- Advanced battery technologies research
- Metal complexes synthesis and properties
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- 2D Materials and Applications
- Nanomaterials for catalytic reactions
- Crystallography and molecular interactions
- Advanced Battery Technologies Research
- Semiconductor materials and devices
- Catalysis and Hydrodesulfurization Studies
- Perovskite Materials and Applications
- Luminescence and Fluorescent Materials
- Aerogels and thermal insulation
- Ammonia Synthesis and Nitrogen Reduction
- Surface Modification and Superhydrophobicity
Dalian Institute of Chemical Physics
2017-2025
Dalian National Laboratory for Clean Energy
2023-2025
Chinese Academy of Sciences
2017-2025
China Resources (China)
2023
Ningxia University
2022
University of Chinese Academy of Sciences
2018-2020
University of Science and Technology of China
2018
Dalian University
2018
Collaborative Innovation Center of Chemistry for Energy Materials
2017
Yan'an University
2009-2011
Wrinkles are ubiquitous for graphene films grown on various substrates by chemical vapor deposition at high temperature due to the strain induced thermal mismatch between and substrates, which greatly degrades extraordinary properties of graphene. Here we show that wrinkle formation Cu is strongly dependent crystallographic orientations. Wrinkle-free single-crystal was a wafer-scale twin-boundary-free Cu(111) thin film fabricated sapphire substrate through engineering. The wrinkle-free...
The urgent need of modern society for portable energy‐consuming devices has boosted the development high‐power supercapacitors and high‐energy batteries. Major prerequisites augmenting wider practical applications are advanced electrode materials deeper insights into underlying electrochemical processes. Owing to their unique physicochemical properties, 2D materials, such as graphene, transition metal carbides, nitrides, dichalcogenides, hold special promise. Characterizing behavior under...
Although modulating oxygen vacancies in semiconductors has attracted broad interest photocatalysis and photoelectrocatalysis, identifying the intrinsic roles of on photoelectrocatalytic properties is often elusive. In this work, a typical semiconductor lead chromate (PbCrO4 ) are regulated via controlling chemical potentials O-poor O-rich post-annealing atmospheres. Oxygen identified PbCrO4 can introduce electronically shallow energy levels deep owing to symmetry difference atoms structure....
A strain-alleviating strategy was developed by creating a layered-spinel alternate heterostructure for LROs, resulting in 3D channel lithium-ion diffusion which capable of reducing structural strain during the intercalation/deintercalation Li + , thereby enhancing dynamic stability.
Abstract Lithium‐rich layered oxides (LROs) are one class of the most competitive high‐capacity cathode materials due to their anion/cation synergistic redox activity. However, excessive oxidation oxygen sublattices can induce serious loss and structural imbalance. Hence, a near‐surface reconfiguration strategy by fluorinating graphene is proposed precisely regulate Mn 3+ /Mn 4+ O 2− /(O 2 ) n− couples for remarkably stabilizing LROs realizing simultaneous reduction lattice stress,...
Abstract All‐inorganic metal halides with afterglow emission have attracted increasing attention due to their significantly longer duration and higher stability compared organic–inorganic hybrid counterparts. However, colors not yet reached the blue spectral region. Here, we report all‐inorganic copper‐doped Rb 2 AgBr 3 single crystals ultralong (>300 s) by modulating defect states through doping engineering. The introduction of copper(I) ions into facilitates formation bromine vacancies,...
Abstract Li‐rich materials are among the most promising cathode for lithium‐ion batteries thanks to their high specific capacity. However, they exhibit poor structural stability, resulting in low initial Coulombic efficiency and limited cycle stability. Herein, a long‐neglected Li‐deficient state is realized Co‐free lithium‐rich through facile calcination medium‐induced surface‐corrosion (CMISC) strategy alleviating aforementioned drawbacks. The as‐constructed of Li 1.2‐σ Mn 0.6 Ni 0.2 O 2 (...
Planar micro-supercapacitors (MSCs) are one key micropower source for microelectronics. However, the pseudocapacitive regulation strategies of extraordinarily multiplying capacitance and energy density electric double-layer MSCs underdeveloped. Herein, a versatile strategy boosting graphene-based planar by highly concentrated water-in-salt ambipolar redox electrolyte (ZnI2 + ZnCl2) is proposed, which can serve as an mediator to contribute remarkable pseudocapacitance positive negative...
During graphene growth on various transition metals in the periodic table, metal carbides always emerge to behave as complex intermediates. On VIII metals, metastable usually evolve and then transform into along phase interfaces, even no can form IB-IIB metals. In contrast, during group IVB-VIB are generated before evolution of stably exist throughout whole process. However, for remaining e.g., VIIB, located between VIII, interplay carbide is still vague. Herein, Re(0001) (VIIB), we have...
Hydrothermal reactions of 3,3′,4,4′-diphenylsulfonetetracarboxylic dianhydride with Co(II) or Mn(II) acetate and systematically varied N-donor co-ligands leads to the formation a series supramolecular complexes, namely, [Co(H2dpstc)(trpy)·H2O] (1), [Co2(dpstc)(phen)2·4H2O]·2H2O (2), [Mn2(dpstc) (phen)2·5H2O] (3), [Mn2(dpstc)(bipy)2·3H2O]·H2O (4) [Mn2(dpstc)(bpe)2·2H2O]·2H2O (5), where dpstc = 3,3′,4,4′-diphenylsulfonetetracarboxylate, trpy 2,2′:6′,2′′-terpyridine, phen 1,10-phenthro- line,...
Although high-temperature oxidation of metals results in significant failure structure materials, situ understanding these processes and developing improved strategies are still very limited. Herein, using environmental scanning electron microscopy (ESEM), transmission (ETEM), X-ray photoelectron spectroscopy (XPS), we report the dynamic behaviors iron O2, H2O, O2 + H2O atmospheres, respectively. The demonstrate that an oxygen-rich environment (1.6 mbar) leads to transient formation...
Restricting the growth of sodium (Na) dendrites at atomic level is premise to enable both stability and safety metal batteries (SMBs). Here, universal synthesis fourth main group element (Sn, Ge, Pb) as single atoms anchored on graphene Pb SAs/G) with sp hybridization for dendrite-free anode reported. The in situ real-time observation Na Sn SAs/G uncoils a kinetically uniform planar deposition substantially suppressing dendrite growth. symmetrical SAs/G-Na battery exhibits high Coulombic...
Dihydrogen complexes, which retain the H–H bond, have been extensively studied in molecular science and found to be prevalent homogeneous enzymatic catalysis. However, their counterparts heterogeneous catalysis, specifically nondissociative chemisorbed dihydrogen binding on catalyst surface, are rarely reported experimentally. This scarcity is due complexity of typical material surfaces lack effective characterization techniques prove distinguish various modes. Herein, using high-pressure...
In-Situ/Operando Characterization of 2D Materials The recent advances in-situ and operando characterization materials for electrochemical energy storage devices are reviewed in the article number 2000076 by Qiang Fu, Klaus Müllen, Zhong-Shuai Wu, co-workers to comprehensively understand charge degradation mechanisms. Preparation impact preparation methods on resulting electrode structure performance, mechanisms underlying operation supercapacitors lithium batteries discussed.
Chemical engineering optimization from a batch process to continuous flow in liquid-phase hydrogenation brings significant improvement efficiency. However, its further application is limited due the severe pressure drop and tube blockage problems powder-form catalyst fixed-bed reactor, especially for nanocarbon-supported catalysts. In this work, spherical monoliths containing oxygenated carbon nanotube (oCNT)-supported Pd nanoparticles (ca. average size of 2 mm) are fabricated via an situ...
Ambient atmosphere is critical for the surface/interface chemistry of electrodes that governs operation and failure in energy storage devices (ESDs). Here, taking an Al/graphite battery as example, both relaxation processes working graphite have been dynamically monitored by multiple situ surface interface characterization methods within various well-controlled atmospheres. Relaxation effects are manifested recoverable stage-structure change electronic occurring anhydrous inert atmospheres...
Excessive softening of Lycium barbarum L. (LBL) fruit can limit the storage and transportation fresh fruit. To better understand underlying molecular mechanisms in LBL, changes pre-climacteric (S1) post-climacteric (S2) proteomes were investigated by iTRAQ methods. The 14-fold reduction S2 firmness compared to S1 was accompanied increased espiratory intensity degradation cell wall components. A total 258 differentially expressed proteins (DEPs) identified, which mainly associated with...
Interaction of hexagonal boron nitride (h-BN) with gases is great importance for its properties and applications. In the present work, structural changes h-BN overlayers on Pt(111) in oxidative atmospheres including O2 NO2 have been investigated by using low energy electron microscopy, Auger spectroscopy, X-ray photoelectron spectroscopy (XPS), near ambient pressure XPS. We find that islands can be intercalated oxygen 10-6 Torr at 200 °C, while intercalation full layer around °C requires...
Transition metal nitrides (TMNxs) present noble metal-like properties and thus are considered important functional materials for catalysis energy conversion applications. However, obtaining well-defined thin epitaxial remains challenging, in contrast to the facile production of high-quality graphene other 2D atomic crystals. Here, we report vapor–liquid–solid (VLS) growth MoN nanosheets with molten Na2MoO4 employed as Mo source NH3 nitriding gas. Single-crystalline micrometer-sized a...