期刊
ACS NANO
卷 14, 期 9, 页码 11205-11214出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.0c02891
关键词
anion modulation; cation exchange; hollow toroid; phosphosulfide; heterointerface
类别
资金
- Hydrogen Energy Innovation Technology Development Program of the National Research Foundation of Korea (NRF) - Korean government (Ministry of Science and ICT(MSIT)) [NRF-2019M3E6A1064709]
- Korea University Future Research Grant (KU-FRG)
- Korea Basic Science Institute (KBSI) under the RD program [C38530]
- Global Ph.D. Fellowship [NRF-2018H1A2A1062618]
- [NRF-2020R1A2B5B03002475]
- [NRF-2019R1A6A1A11044070]
- National Research Foundation of Korea [4120200213669] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Postmodification of nanocrystals through cation , exchange has been very successful in diversifying nanoinaterial compositions while retaining the structural motif. Copper compound nanoparticles are particularly useful as templates because of inherent defects serving as effective cation diffusion routes and excellent cation mobility. Therefore, the development of shape-controlled multianion systems, such as copper phosphosulfide, can potentially lead to the formation of diverse metal phosphosulfide nanomaterials that have otherwise inaccessible compositions and structures. However, there is, to the best of our knowledge, no report on the shape-controlled synthesis of copper phosphosulfide nanoparticles because the introduction of the second anion to the metal compound might destroy the nanoparticle morphology and crystallinity due to the required high energy for anion diffusion and mixing. Herein, we report that it is feasible to transfer the structural motif of copper sulfide to copper phosphosulfide using tris(diethylamino)phosphine. The anion-mixed copper phosphosulfide in the form of a hollow toroid could provide a pathway to previously inaccessible phases and morphologies. We verified the versatility of a copper phosphosulfide hollow toroid as a cation-exchange template by the successful synthesis of cobalt, nickel, indium, and cadmium phosphosulfides as well as bimetallic cobalt-nickel phosphosulfide (Co2-xNixP1-ySy) with a retained structural motif.
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