Principle of proximity: Plasmonic hot electrons motivate donator-adjacent semiconductor defects with enhanced electrocatalytic hydrogen evolution

Rapid preparation of polydopamine coating as a multifunctional hair dye

“…4 However, organic compounds with molecular masses of less than 500 Da, such as PPD, have been shown to easily cross the skin barrier and are regarded as human allergens and carcinogens. 5 To address this issue, some nontoxic nanomaterials, which are versatile in biomedical, [6][7][8] nano-engineering, 9,10 and clean energy 11,12 applications, have also been developed as safe dyeing agents. For example, Huang and coworkers found that graphene-based hair dyes could greatly shorten the dyeing time and improve antistatic performance.…”

Defect Engineering of Molybdenum-Based Materials for Electrocatalysis

“…Peaks in the XRD spectrum can shift or widen, and the corresponding unit cell parameters also changes when defects are introduced. Figure 6a represents XRD pattern of defective MoS 2 nanosheets, which highlighted that the defect-rich structure led to the formation of nanometer-sized domains along the basal planes, resulting in the broadening of the (100) and (110) diffraction peaks in the spectrum [70]. In one study, Tang et al confirmed that interlayer expanded MoS 2 could be prepared via N-doped graphene oxide intercalation [71].…”

“…A-MoS 2 exhibited excellent HER performance (low overpotential of 156 mV at 10 mA cm −2 and a Tafel slope of 58 mV dec −1 ), which may be caused by a combination of complex defects. In another study, Li et al used liquid-exfoliated strategies to synthesize MoS 2 with a lot of surface and edge defects, and realized the doping of Au [110]. TEM images illustrated that the plane of the Au-doped MoS 2 layer exposed a large number of boundary edges and plane defects, which portrayed that this method does not synthesize a single defect.…”

Boosting Hydrogen Evolution Reaction Activities of Three-Dimensional Flower-like Tungsten Carbonitride via Anion Regulation

“…5,6 Actually, platinum-based catalysts are still considered as the benchmark HER catalysts in alkaline conditions, whereas the high cost and the rareness of platinum greatly hinder its large-scale and practical applications. 7,8 Thus, the intensive research on exploring noble metal-free HER catalysts with the superior activity and durability is in much demand.…”

“…The alkaline hydrogen evolution reaction (HER) can avert the corrosion damage for facilities and the acid–mist contamination for products; thus, it has motivated significant interests in recent years . However, despite considerable efforts, constructing high-activity alkali-stable HER catalysts remains challenging. , Actually, platinum-based catalysts are still considered as the benchmark HER catalysts in alkaline conditions, whereas the high cost and the rareness of platinum greatly hinder its large-scale and practical applications. , Thus, the intensive research on exploring noble metal-free HER catalysts with the superior activity and durability is in much demand.…”