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Nanotechnology‐based strategy has recently drawn extensive attention for the therapy of malignant tumors due to its distinct strengths in cancer diagnosis and treatment. However, the limited intratumoral permeability of nanoparticles is a major hurdle to achieving the desired effect of cancer treatment. Due to their superior cargo towing and reliable penetrating property, micro‐/nanomotors (MNMs)...
Generating sufficient power from waste heat is one of the most important things for thermoelectric (TE) techniques in numerous practical applications. The output power density of an organic thermoelectric generator (OTEG) is proportional to the power factors (PFs) and the electrical conductivities of organic materials. However, it is still challenging to have high PFs over 1 mW m−1 K−2 in free‐standing...
Lithium metal, as the “Holy Grail” of lithium battery anodes, is promising to be used in the next‐generation of high‐energy‐density storage devices. However, serious safety risk and poor cycle performance are inevitable when bare lithium foil is used as the anode material, due to the uncontrolled growth of lithium dendrites, unstable solid electrolyte interface, and infinite volume expansion of lithium...
Aqueous zinc‐ion batteries are a low‐cost and safe energy storage system, but suffer from detrimental side reactions and Zn dendrites due to the strong interactions between Zn2+ and water molecules in the electrolytes, and random Zn2+ deposition on the anode surface. Here, an electrolyte involving a dual‐functional additive of polyethylene glycol (PEG) to bypass these issues is reported. The electrolyte...
The demand of clean energy calls for efficient and low‐cost hydrogen evolution reaction electrocatalysts. Fabricating hybrid catalysts from noble/non‐noble catalysts is a practical route to reducing the consumption of noble metals and enhancing catalytic efficiency. Here, 2H‐MoS2 is etched and edge‐doped with Pt nanoparticles using focused ion beam and photoreduction techniques. Precise comparison...
Formamidinium (FA)‐based perovskite material holds great potential to deliver highly efficient commercial solar cells. However, the FA‐based perovskite films are commonly processed under a strictly controlled environment, which would eventually hinder their way to commercialization. Herein, a systematic study is conducted to investigate the sequential deposition of FA‐based perovskite films that are...
Powder metallurgy introduces small structures of high‐density grain boundaries into Bi2Te3‐based alloys, which promises to enhance their mechanical and thermoelectric performance. However, due to the strong donor‐like effect induced by the increased surface, Te vacancies form in the powder‐metallurgy process. Hence, the as‐sintered n‐type Bi2Te3‐based alloys show a lower figure of merit (ZT) value...
Aqueous zinc‐ion batteries (AZIBs) are regarded as one of the most promising alternative technology to lithium‐ion batteries on account of their low flammability and cost‐benefits. Among various cathode materials in AZIBs, environment‐friendly and sustainable organic electrode materials stand out owing to their structural diversity and tunability. However, their limited rate capability and cycle stability...
High‐temperature electrolysis using solid oxide electrolysis cells (SOECs) provides a promising way for the storage of renewable energy into chemical fuels. During the past, nickel‐based cathode‐supported thin‐film electrolyte configuration was widely adopted. However, such cells suffer from the serious challenge of anode delamination at high electrolysis currents due to enormous gaseous oxygen formation...
The rapid development of electric vehicles and modern personal electronic devices is severely hindered by the limited energy and power density of the existing power sources. Here a novel hybrid Zn battery is reported which is composed of a nanostructured transition metal oxide‐based positive electrode (i.e., Co3O4 nanosheets grown on carbon cloth) and a Zn foil negative electrode in an aqueous alkaline...
This study develops a novel strategy, based on block copolymer self‐assembly in solution, for preparing two‐dimensional (2D) graphene‐based mesoporous nanohybrids with well‐defined large pores of tunable sizes, by employing polystyrene‐block‐poly(ethylene oxide) (PS‐b‐PEO) spherical micelles as the pore‐creating template. The resultant 2D nanohybrids possess a sandwich‐like structure with Fe2O3 nanoparticle‐embedded...
A new methodology to create 3D origami patterns out of Si nanomembranes using pre‐stretched and pre‐patterned polydimethylsiloxane substrates is reported. It is shown this approach is able to mimic paper‐based origami patterns. The combination of origami‐based microscale 3D architectures and stretchable devices will lead to a breakthrough on reconfigurable systems.
Robust luminescent dyes with efficient two‐photon fluorescence are highly desirable for biological imaging applications, but those suitable for organic dots fabrication are still rare because of aggregation‐caused quenching. In this work, a red fluorescent silole, 2,5‐bis[5‐(dimesitylboranyl)thiophen‐2‐yl]‐1‐methyl‐1,3,4‐triphenylsilole ((MesB)2DTTPS), is synthesized and characterized. (MesB)2DTTPS...
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