Constructing atomic single metal Co–C₃(OH)₁sites with graphdiyne for zinc–air batteries

Abstract

Single-atom metal-Nx sites have exhibited excellent catalytic properties and garnered growing attention. Typically, these metal atoms rely heavily on N atoms to anchor them to the carbon substrate. However, since...

Functional Graphdiyne for Emerging Applications: Recent Advances and Future Challenges

“…The sp hybridized carbon and free electrons in 𝜋-conjugated GDY structures are very beneficial for real applications, especially in the field of batteries. [208][209][210][211][212] For example, recently, gradient GDY-induced Cu/O-dual-vacancies rich Cu 0.95 V 2 O 5 @GDY heterostructure (CuVO@GDY) was successfully fabricated and employed as an anode active material. [60] Cu ions in the Cu 0.95 V 2 O 5 were employed as catalysts to facilitate the in situ growth of GDY (Figure 10a), which made Cu ions easily migrate out of the Cu 0.95 V 2 O 5 lattice and promoted the formation of Cu/O dual vacancies (V Cu/O , Figure 10b).…”

Review of Graphdiyne-Based Nanostructures and Their Applications

“…The results depicted that after F4TCNQ functionalization, the minimum η ORR values of GDY in FTG1, FTG2, and FTG3 are 0.643, 0.760, and 0.729 eV, respectively, which are all lower than the original GDY (0.969 eV). Li et al 112 adopted hydrogen-substituted graphdiyne (HsGDY) as a carbon substrate to construct cobalt atomic electrocatalyst (Co-HsGDY) for the ORR. Thanks to the sp C of HsGDY, Co atoms had enough space to coordinate with oxygen-containing groups, further regulating the electronic structure of the central metal.…”

Promoting CO2 electroreduction to CO by a graphdiyne-stabilized Au nanoparticle catalyst

“…10 Each acetylene unit in GDY is connected to the benzene ring, forming a planar porous structure that facilitates electrolyte diffusion, mass transfer and gas release. 11–13 In addition, due to its highly π-conjugated structure, large surface area, evenly distributed pores, good chemical stability, and excellent electron conductivity, GDY has shown great prospects in the fields of batteries, 14–18 optoelectronic devices 19–23 and electrocatalysis. 24–31 More importantly, due to its unique physical and chemical properties, there is a strong d–π electron interaction between the GDY substrate and metal catalysts.…”