Advances in hydrogen energy conversion of graphdiyne‐based materials

Abstract

Graphdiyne (GDY), a new carbon allotrope containing sp and sp2‐hybridized carbon atoms, features the one‐atom‐thick two‐dimensional structure with many unique and promising characteristics, such as highly conjugated and extremely large π structures, abundant carbon chemical bonds, naturally distributed pores, inherent band gap, excellent chemical and mechanical stability, highly uneven distributed surface charges, and can be grown on the surface of arbitrary substrates. GDY has been one of the hottest frontiers in chemistry and material sciences and represents a new development trend and research direction in the development of carbon materials. Owing to the unique characteristics in chemical and electronic structures, GDY has shown great application potentials and prospects in many fields, including catalysis, energy, optoelectronics, life science, and intelligent device. In this review, the structures, synthetic methods, and fundamental properties of GDY are introduced. In particular, the recent advances of GDY and its formed aggregates in hydrogen energy conversion are summarized and discussed.

Controlled Growth of PtCux Quantum Dots on Graphdiyne for Efficient Ammonia Production

“…Ammonia (NH 3 ) plays a pivotal role in contemporary society as an indispensable material for the fertilizer industry and as an ideal energy carrier for attaining carbon neutrality. − Nitrate (NO 3 – ), a prevalent toxic water pollutant, has emerged as an attractive alternative nitrogen source due to its higher water solubility and lower bond dissociation energy than N 2 . − This makes it possible to produce ammonia (NH 3 ) from the electrocatalytic nitrate reduction reaction (NtRR) at room temperatures and ambient pressures from wastewater. However, the challenge is the lack of selective and active catalysts for large-scale NH 3 production to meet the practical needs.…”