Modulating the electronic structures of layer-expanded MoS2 nanoreactor via cobalt doping and carbon intercalation for enhanced electrocatalytic hydrogen evolution

Coupled W–Co2P hybrid nanosheets as a robust bifunctional electrocatalyst for hydrazine-assisted hydrogen production

“…Hydrogen (H 2 ) as a clean and sustainable energy source is recognized as a promising candidate to replace fossil fuels. [1][2][3][4] The electrocatalytic water splitting technology consists of two half-reactions, including the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), and is regarded as one of the most efficient ways to sustainably produce hydrogen. [5][6][7][8] However, slow anodic OER usually requires greater thermodynamic potential to form O-O bonds, resulting in a large cell voltage to drive the water splitting.…”

NiMo-MOF-Derived Carbon-Armored Ni4Mo Alloy of an Interwoven Nanosheet Structure as an Outstanding pH-Universal Catalyst for Hydrogen Evolution Reaction at High Current Densities

“…Nevertheless, NiMo@C/NF outperforms Pt-C/NF at high current densities in terms of η 500 (267 vs 294 mV), which is more important for an electrocatalyst aiming for commercial applications. Moreover, the catalytic efficiency of NiMo@C/ NF in 0.5 M H 2 SO 4 is superior to many of the recently reported non-precious transition metal-based HER catalysts, such as CoMoP-rGO/CNT (η 10 = 66 mV), 58 Co@MoS 2 /C (η 10 = 70 mV), 59 Co 3 Mo 3 N (η 10 = 108 mV), 60 and MoS 0.46 Te 0.58 /Gr (η 10 = 62 mV). 61 The mechanism for catalyzation of HER has been well established and involves three fundamental steps, namely, Volmer, Heyrovsky, and Tafel, as described in the following.…”

A novel wound dressing based on a gold nanoparticle self-assembled hydrogel to promote wound healing

“…31 NPs not only have controllable physical and chemical properties, and can target bacteria at the infection site, but also have a high specific surface area, which can further increase the contact ability with bacteria. 32,33 In addition, the antibacterial properties of NPs can be enhanced by modifying their morphology. 34 Among precious metal NPs used for wound healing, Au NPs are the most commonly used.…”