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MoS2-coated vertical graphene nanosheet nanocomposites are successfully designed and synthesized as high-performance electrode materials for both lithium-ion batteries and hydrogen production. The unique three-dimensional hybrid structure is the key to the high performance for energy storage and conversion.
Electrical control of the spin degree of freedom has enabled various vital applications in modern electronic devices, ranging from magnetoelectronics and spintronics to high-frequency devices. We demonstrate a new approach to ‘write’ enhanced magnetization in a single-phase multiferroic thin film by the application of an electric field. The induced magnetization can be controlled with nanoscopic precision via the assistance of scanning probe techniques, thus offering high potential for use in multifunctional, low power consumption and green nanoelectronics.
Bi-layer intercalation in Bi2Se3 nanoplatelets gives rise to an intriguing crystal structure comprised of randomly stacked Bi2Se3 and Bi2Se2. Detailed conduction electron spin resonance (CESR) and AC/DC magnetization studies prove that controlling Bi intercalation results in fine tuning the two-dimensional electron gas parabolic Rashba states, which enables the appearance of extraordinary orbital magnetism, through the coupling of the spin and orbital degrees of freedom. The methodology presented herein provides a unique and simple way for efficient spin engineering, with important potential applications.
Nanorod NiC2O4·2H2O/rGO composite exhibits good cyclability with high capacity and reasonable rate performance. These characteristics are originated from the high electric conductivity and buffering effect of rGO that promote the reversible lithiation and delithiation processes associated with conversion reaction.
Graphene quantum dots (GQDs) decorated sulfur–carbon hierarchical structure serve as a high sulfur/sulfide utilization in Li–S battery. The oxygen rich functionalities of the GQDs induced structural integrity of the sulfur–carbon electrode composite. This hierarchical structure enables fast charge transfer, minimizes the loss of soluble polysulfides and completes reaction of sulfur/sulfide.
In this work, a new theranostics based on GdW10@BSA NCs with ultrasmall size, but versatile properties, were fabricated, which possesses not only significant CT/ MR imaging signal enhancement but also remarkable photothermal therapy (PTT)/radiotherapy (RT) therapeutic effects for tumor. Therefore, our work may open an avenue in developing other POM-based multifunctional nanomedicines with better therapeutic outcome and fewer side effects.
