Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors
Status PubMed-not-MEDLINE Language English Country United States Media print-electronic
Document type Journal Article
- Keywords
- hydrogen evolution, ionic liquid, massive synthesis, single atom, spatially confined synthetic strategy,
- Publication type
- Journal Article MeSH
Reducing the size of a catalyst to a single atom (SA) level can dramatically change its physicochemical properties and significantly boost its catalytic activity. However, the massive synthesis of SA catalysts still remains a grand challenge mainly because of the aggregation and nucleation of the generated atoms during the reaction. Here, we design and implement a spatially confined synthetic strategy based on a porous-hollow carbon nitride (p-CN) coordinated with 1-butyl-3-methylimidazole hexafluorophosphate, which can act as a nanoreactor and allow us to obtain metal SA catalysts (p-CN@M SAs). This relatively easy and highly effective method provides a way to massively synthesize single/multiple atoms (p-CN@M SAs, M = Pt, Pd, Cu, Fe, etc.). Moreover, the amorphous NiB-coated p-CN@Pt SAs can further increase the loading amount of Pt SAs to 3.7 wt %. The synthesized p-CN@Pt&NiB electrocatalyst exhibits an extraordinary hydrogen evolution reaction activity with the overpotential of 40.6 mV@10 mA/cm-2 and the Tofel slope of 29.26 mV/dec.
References provided by Crossref.org
Single Atom Catalysts Based on Earth-Abundant Metals for Energy-Related Applications
