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Region-Controlled Framework Interface Mediated Anion Exchange Chemical Transformation to Designed Metal Phosphosulfide Heteronanostructures.
- Source :
-
Nano letters [Nano Lett] 2023 May 10; Vol. 23 (9), pp. 3858-3865. Date of Electronic Publication: 2023 May 01. - Publication Year :
- 2023
-
Abstract
- Postsynthetic chemical transformation provides a powerful platform for creating heteronanostructures (HNs) with well-defined materials and interfaces that generate synergy or enhancement. However, it remains a synthetic bottleneck for the precise construction of HNs with increased degrees of complexity and more elaborate functions in a predictable manner. Herein, we define a general transformative protocol for metal phosphosulfide HNs based on tunable hexagonal Cu <subscript>1.81</subscript> S frameworks with corner-, edge- and face-controlled growth of Co <subscript>2</subscript> P domains. The region-controlled Cu <subscript>1.81</subscript> S-Co <subscript>2</subscript> P framework interfaces can serve as "kinetic barriers" in mediating the direction and rate between P and S anion exchange reactions, thus leading to a family of morphology and phase designed Cu <subscript>3</subscript> P <subscript>1- x </subscript> S <subscript> x </subscript> -Co <subscript>2</subscript> P HNs with hollow (branched, dotted and crown), porous and core-shell architectures. This study reveals the internal transformation mechanism between metal sulfide and phosphide nanocrystals, and opens up a new way for the rational synthesis of metastable HNs that are otherwise inaccessible.
Details
- Language :
- English
- ISSN :
- 1530-6992
- Volume :
- 23
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Nano letters
- Publication Type :
- Academic Journal
- Accession number :
- 37126737
- Full Text :
- https://doi.org/10.1021/acs.nanolett.3c00464