With NaBH₄ as the assistant reductant, small and highly dispersed Pt nanoparticles are formed on E-MoS₂ nanosheets which provide abundant catalytically active sites and exhibit excellent hydrogen evolution reaction (HER) performance.

We propose the intrinsic ferromagnetic Dirac half-metallic 1T-CrO₂monolayer as a promising platform for future high efficiency spintronic applications.

Nb₄C₃T_x MXene has shown extraordinary promise for various applications owing to its unique physicochemical properties. However, it can only be synthesized by the traditional HF‐based etching method, which uses large amounts of hazardous HF and requires a long etching time (> 96 h), thus limiting its practical application. Here, an ultra‐efficient and environmental‐friendly H₂O‐assisted supercritical etching method is proposed for the preparation of Nb₄C₃T_x MXene. Benefiting from the synergetic effect between supercritical CO₂ (SPC‐CO₂) and subcritical H₂O （SBC‐H₂O）, the etching time for Nb₄C₃T_x MXene can be dramatically shortened to 1 h. The as‐synthesized Nb₄C₃T_x MXene possesses uniform accordion‐like morphology and large interlayer spacing. When used as anode for Li‐ion battery, the Nb₄C₃T_x MXene delivers a high reversible specific capacity of 430 mAh g⁻¹ at 0.1 A g⁻¹, which is among the highest values achieved in pure‐MXene‐based anodes. The superior lithium storage performance of the Nb₄C₃T_x MXene can be ascribed to its high conductivity, fast Li⁺ diffusion kinetics and good structural stability.

A simple, low-cost technique has been developed for the rapid fabrication of single-layered paper-based microfluidic devices (μPADs). This technique, for the first time, made use of the deposition of patterned adhesive tape into the filter paper to construct hydrophobic barriers, with the help of toluene. Unlike other reported multi-layered μPADs that merely made use of adhesive tape as a separate layer for sealing or fluid flow controlling, the patterned adhesive tape was simultaneously dissolved and penetrated into the filter paper, which resulted in the successful transfer of the pattern from the tape to the filter paper. To demonstrate the effectiveness of this approach, nitrite and glucose were individually measured; detection limits as low as 0.015 ± 0.004 mM and 0.022 ± 0.006 mM were reported for nitrite and glucose, respectively. Multiplexed analysis of both analytes was also carried out with respective detection limits of 0.048 ± 0.005 mM and 0.025 ± 0.006 mM for nitrite and glucose. The application of the method was demonstrated by measuring nitrite and glucose in spiked artificial urine samples and satisfied recovery results were obtained.