Large‐Area Aminated‐Graphdiyne Thin Films for Direct Methanol Fuel Cells

Abstract

At wo-dimensional (2D) carbon nanofilm with uniform artificial nanopores is an ideal material to ultimately suppress the fuel permeation in the proton exchange membrane fuel cells.G raphdiyne has great mechanical strength, high dimensional stability,a nd controllable nanopores,a nd has good prospects to playt his crucial role.I ti sf ound that graphdiyne nanofilm with amino groups and natural nanopores can be easily prepared with high integrity.The aminated graphdiyne has good compatibility with the Nafion matrix owingtothe acid-base interaction between them. The excellent comprehensive properties of graphdiyne in selectivity,d imensional stability,a nd integrity effectively improve the power performance and stability of fuel cells at wide temperature.Our results can be developed into auniversal method that can easily realizethe selective separation of ions and small molecules,and open anew wayfor the emerging applications in green energy.

Graphdiyne‐Based Single‐Atom Catalysts with Different Coordination Environments

“…have been synthesized [58, 59] . Moreover, many sorts of heteroatoms or groups doped GDY have been successfully developed [33, 60, 61] . Nevertheless, so far, almost all of the GDY‐based ACs have been prepared on few‐layered nanosheets [60] .…”

Graphdiyne‐Based Single‐Atom Catalysts with Different Coordination Environments

“…have been synthesized [58, 59] . Moreover, many sorts of heteroatoms or groups doped GDY have been successfully developed [33, 60, 61] . Nevertheless, so far, almost all of the GDY‐based ACs have been prepared on few‐layered nanosheets [60] .…”

Sulfur-rich Graphdiyne-Containing Electrochemical Active Tetrathiafulvalene for Highly Efficient Lithium Storage Application

“…Using such a molecular engineering strategy, different heteroatom elements can be introduced into GDY materials with precise control over the substituted position, heteroatom-doping configuration, heteroatom content, and the corresponding nanopore sizes. In the meantime, some previous studies have shown that the heteroatom-doped GDYs have great potential applications, as well as GDYs, in many fields. − For instance, several qualitative and quantitative nitrogen-, halogen- (F, Cl), and B-doped GDYs have been synthesized and already shown high reversible capacity and extremely stable cycle performance in Li-ion storage − and excellent catalyst activity in NADH regeneration . However, most of the heteroatom-doped GDY materials so far reported have been synthesized by postmodifying the preformed GDY materials, which was usually the so-called “top-down” strategy .…”