Fe₃O₄ nanoparticles entrapped in the inner surfaces of N-doped carbon microtubes with enhanced biomimetic activity

Abstract

Here, we synthesized N-doped carbon microtubes with Fe3O4 nanoparticles encapsulated inside NCMTs (Fe3O4@NCMTs), which possessed a higher peroxidase-like activity when compared with NCNTs@Fe3O4, demonstrating structural superiority of Fe3O4@NCMTs.

Controllable synthesis of NiCo2O4 nanoparticles supported on MnO2 nanowires with excellent oxidase-mimicking performance

“…Typical type IV isotherms with H3-type hysteresis loops ( P / P 0 > 0.4) were observed. 43–48 As was expected, the hierarchical nanowires exhibited a specific surface area of 32.40 m 2 g −1 (Fig. 1R).…”

Construction of hierarchical NCMTs@MoO2/FeNi3 tubular heterostructures for enhanced performance in catalysis and protein adsorption

“…3D), indicating the existence of a mesoporous microstructure. 16,39,40 This result was further confirmed by the BJH pore size distribution plot (inset in Fig. 3D), which suggests that NCMTs@MoO 2 /FeNi 3 contains pores with a diameter of about 7.51 nm.…”

Carbon-Based Composites for Oxygen Evolution Reaction Electrocatalysts: Design, Fabrication, and Application

“…Various experimental methods have been adopted to improve the activity and stability of OER electrocatalysts. Commonly used strategies include defect engineering, such as heteroatom doping or vacancy introduction [44]; structural control, such as the regulation of morphology and electronic structure [28,[45][46][47][48]; and interface engineering [42], such as constructing composites [49,50]. Studies have confirmed that carbon-metal composites can effectively adjust the catalyst's electronic properties, avoid the metal's dissolution in the electrolyte, and consequently improve electrocatalysts' intrinsic activity and stability [51][52][53][54][55].…”