Hierarchical N-doped carbon spheres anchored with cobalt nanocrystals and single atoms for oxygen reduction reaction

Hierarchical Pores‐Confined Ultrasmall Cu Nanoparticles for Efficient Oxidation of 5‐Hydroxymethylfurfural

“…Accordingly, the as-prepared metalÀ carbon composites were composed of nanoconfined metal nanoparticles (NPs) and porous carbons featuring adjustable morphologies (e. g., hollow, core-shell, and yolk-shell nanostructures), and exhibited enhanced catalytic performance in comparison with their solid counterparts. [14][15][16][17][18][19][20] Despite the advances achieved, most of the reported strategies suffered from complicated operation procedures, costly templates, harsh preparation conditions, and limited versatilities, which get in the way of practical applications. In a word, it is still of urgent need to develop facile, cost-effective, and versatile protocols for the controllable synthesis of MOF-derived metalÀ carbon composites for highly efficient catalysis.…”

Synergistically enhanced iron and zinc bimetallic sites as an advanced ORR electrocatalyst for flow liquid rechargeable Zn–air batteries

“…Particularly, the introduction of Zn 2+ could avoid the aggregation of Fe species through Zn evaporation at high temperatures, leading to small Fe species and spatially isolated atoms. 47 As shown in Fig. 2c, the typical TEM image showed that the Fe–Zn/N/C/MWCNTs-800 sample consisted of intertwining MWCNTs with an uneven surface and some lattice defects.…”

Synergistically enhanced single-atomic site catalysts for clean energy conversion

“…In short, they rstly attempted chemical doping of Fe 3+ 39 As for the type of M@C NPs -M SAC , for instance, Mai et al reported bimetallic zeolitic imidazole framework (BMZIF)-derived carbon spheres with grapheneencapsulated Co nanoparticles (Co@C) and isolated single Co atoms (CoSAs), denoted as Co-NCS. 40 As shown in Fig. 2b, the resin microspheres with abundant functional groups could absorb Zn/Co ions and provide adequate structural support aer carbonization, which prevents the aggregation of nanocrystal precursors.…”