A5083004829- Graphene research and applications
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Photoreceptor and optogenetics research
- 2D Materials and Applications
- Nanopore and Nanochannel Transport Studies
- Spectroscopy and Quantum Chemical Studies
- Advanced Photocatalysis Techniques
- Magnetic and Electromagnetic Effects
- Membrane Separation Technologies
- Radioactive element chemistry and processing
- Supramolecular Self-Assembly in Materials
- Extraction and Separation Processes
- Copper-based nanomaterials and applications
- Surface Chemistry and Catalysis
- Origins and Evolution of Life
- Crystallography and molecular interactions
- Chemical Synthesis and Characterization
- Iron oxide chemistry and applications
- TiO2 Photocatalysis and Solar Cells
- Muon and positron interactions and applications
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Nanofabrication and Lithography Techniques
- Advanced Nanomaterials in Catalysis
University of Chinese Academy of Sciences
2019-2025
Ningbo University
2024-2025
Chinese Academy of Sciences
2020-2021
Shanghai Institute of Applied Physics
2019-2021
Nanjing University of Information Science and Technology
2014
Ferromagnetic catalysts in the presence of an external magnetic field can promote reaction kinetics oxygen evolution (OER) by enhancing spin-selective electron transfer as intermediates and products confer spin-dependent behavior. It has been found that γ-Fe2O3 with ferromagnetism exhibits enhanced performance for OER activity, but its preparation is limited. Herein, we report adsorption-pyrolysis process air which transformation α-Fe2O3 into precisely regulated controlling content Co ions....
The high performance of two-dimensional (2D) channel membranes is generally achieved by preparing ultrathin or forming short channels with less tortuous transport through self-assembly small flakes, demonstrating potential for highly efficient water desalination and purification, gas ion separation, organic solvent waste treatment. Here, we report the construction vertical in graphene oxide (GO) membrane based on a substrate template asymmetric pores. permeance 2647 L m−2 h−1 bar−1 while...
Abstract Effective neuroprotective agents are required to prevent neurological damage caused by reactive oxygen species (ROS) generated cerebral ischemia‐reperfusion injury (CIRI) following an acute ischemic stroke. Herein, it is aimed develop the of cerium oxide loaded with platinum clusters engineered modifications (Pt n ‐CeO 2 ). The density functional theory calculations show that Pt could effectively scavenge ROS, including hydroxyl radicals (·OH) and superoxide anions (·O − In...
Based on DFT computations, we show that different hydrated cations can precisely control the interlayer spacings between graphene sheets, which are smaller than oxide indicating an ion sieving.
Polydimethylsiloxane (PDMS), a fundamental material in the fabrication of microfluidic devices, suffers from nonspecific adsorption biological samples due to its hydrophobic nature. Herein, by employing radiation-induced grafting strategy introduce hydrophilic functional groups onto PDMS surface, significant improvement hydrophilicity is achieved, leading notable reduction contact angle up ∼90° and antifouling performance against samples. Effects between monomer concentration, efficiency,...
Black phosphorus (BP), a promising two-dimensional material, faces significant challenges for its applications due to instability in air and water. Herein, molecular dynamics simulations reveal that self-assembled ferrocene (FeCp2) layer can form on BP surfaces remain stable aqueous environments, predicting effectiveness passivation. This theoretical finding is corroborated by X-ray photoelectron spectroscopy, Fourier-transform infrared Raman optical microscopy observations. In addition,...
Under ambient conditions, the only known valence state of calcium ions is +2, and corresponding crystals with are insulating nonferromagnetic. Here, using cryo-electron microscopy, we report direct observation two-dimensional (2D) CaCl on reduced graphene oxide (rGO) membranes, in which monovalent (i.e. +1). Remarkably, metallic rather than properties displayed by those crystals. More interestingly, room-temperature ferromagnetism, graphene-CaCl heterojunction, coexistence...
We give two molecular pictures of hydrated cation–π interactions: graphene sheets interact directly with K<sup>+</sup> and Na<sup>+</sup> cations, denoted water–cation–π, while indirectly Li<sup>+</sup> cation, cation–water–π.
Hydrated cation–π interactions at liquid–solid interfaces between hydrated cations and aromatic ring structures of carbon-based materials are pivotal in many material, biological, chemical processes, water serves as a crucial mediator these interactions. However, full understanding the alkaline earth structures, such graphene remains elusive. Here, we present molecular picture for Mg2+ Ca2+ by using density functional theory methods. Theoretical results show that sheet can distort hydration...
One of the major challenges that hinder practical application water electrolysis lies in design advanced electrocatalysts toward anodic oxygen evolution reaction (OER). In this work, a pure Co-based precatalyst CoOOH/brownmillerite derived from surface activation brownmillerite by acid etching method exhibits high activity and stable electrical properties OER. Different oxyhydroxide situ reconstruction during electrochemical process, growth highly crystalline CoOOH enables rational control...
The effect of cationic concentration on controlling the interlayer spacings graphene oxide (GO) membranes is systemically studied. It was found that a higher leads to narrower spacings, and thus, ions in salt solutions were effectively rejected. This provides new avenue for ion separation using graphene-based membranes.
Electrochemical oxidation of 5-hydroxymethylfurfural (HMF) has emerged as a promising method to produce highly valuable chemicals. Co-based electrocatalysts with oxygen vacancies are one the most candidates. However, relationship between their electrocatalytic behavior and vacancy concentration is still ambiguous. In this work, diverse contents Co3O4 were realized via simple adsorption-pyrolysis confirmed by X-ray diffraction, Raman, transmission electron microscopy, photoelectron...
Lithium plays an increasingly important role in scientific and industrial processes, it is extremely to extract lithium from a high Mg 2+ /Li + mass ratio brine or recover the leachate of spent lithium-ion batteries. Conventional wisdom shows that Li with low valence states has much weaker adsorption (and absorption energy) graphene than multivalent ions such as . Here, we show selective thermally reduced oxide (rGO) membranes over other metal , Co Mn Ni Fe Interestingly, strength reaches up...
Black phosphorus (BP) and its two-dimensional derivative (2D-BP) have garnered significant attention as promising anode materials for electrochemical energy storage devices, including next-generation fast-charging batteries. However, the interactions between BP light metal ions, well how these influence BP’s electronic properties, remain poorly understood. Here, we employed density functional theory (DFT) to investigate effects of monovalent (Li+ Na+) divalent (Mg2+ Ca2+) ions on valence...
We show the experimental achievement of dry GO membranes with interlayer spacings in range from 7.09 Å to 8.72 Å, tuned and fixed by salts. found that were dominated anions or groups negative charges between membranes. Density functional theory (DFT) calculations reveal highly efficient tuning spacing is due ion-π interactions on graphene sheets, together steric effects sheets. The findings are helpful for extending their potential applications including chemical sensors, nanomaterial...
The recovery of gold from water is an important research area. Recent reports have highlighted the ultrahigh capacity and selective extraction electronic waste using reduced graphene oxide (rGO). Here, we made a further attempt with thermal rGO membranes found that also had similarly high adsorption efficiency (1.79 g per gram at 1000 ppm). Furthermore, paid special attention to detailed selectivity between Au3+ other ions by membranes. maximum for was about 16 times Cu2+ 10 Fe3+ in mixture...
Based on free-electron model, the calculated inelastic mean escape depth of secondary electrons, experimental one, energy band metal, characteristics and processes electron emission, maximum number electrons released per primary δ(Φ,E F ) PEm as a function parameter K m , work Φ Fermi E was deduced, where is constant for given metal in range 100–800 eV. According to relationship between yield from formula atomic Z, deduced. Using deduced relative alkali metals, earth-alkali metals value were...
The influence of hydrated cation-{\pi} interaction forces on the adsorption and filtration capabilities graphene-based membrane materials is significant. However, lack potential between Cs+ graphene limits scope studies. Here, it developed that a deep neural network function model to predict force graphene. has DFT-level accuracy, enabling accurate property prediction. This employed investigate properties surface solution, including density distribution, mean square displacement, vibrational...
Cation⊗3π interactions play a special role in the behaviors of biological molecules and carbon-based materials aqueous solutions, yet effects solvation on these remain poorly understood. This study examines sequential attachment water to cation⊗3π systems (cation = Li⁺, Na⁺, K⁺), revealing that influences interaction strengths opposing ways: metal cation decreases interactions, while benzene molecule increases compared with gas phase. The mechanism analyses revealed presence...
Compounds harboring active valence electrons, such as unconventional stoichiometric compounds of main group elements including sodium, chlorine, and carbon, have conventionally been perceived unstable under ambient conditions, requiring extreme conditions extra-high pressure environments for stability. Recent discoveries challenge this notion, showcasing the stability two-dimensional Na2Cl other on reduced graphene oxide (rGO) membranes. Focusing crystal a case study, we reveal mechanism...
Ultrasmall RuO 2 /CoFe O 4 nanoparticles with strong interfacial interactions exhibit enhanced oxygen evolution reaction (OER) performance, driven by efficient charge transfer between and CoFe .