TY - JOUR
T1 - Highly Crystalline Hollow Toroidal Copper Phosphosulfide via Anion Exchange
T2 - A Versatile Cation Exchange Nanoplatform
AU - Hong, Yongju
AU - Kim, Taekyung
AU - Jo, Jinhyoung
AU - Kim, Byeongyoon
AU - Jin, Haneul
AU - Baik, Hionsuck
AU - Lee, Kwangyeol
N1 - Funding Information:
This work was supported by NRF-2020R1A2B5B03002475, NRF-2019R1A6A1A11044070, the Hydrogen Energy Innovation Technology Development Program of the National Research Foundation of Korea (NRF) funded by the Korean government (Ministry of Science and ICT(MSIT)) (No. NRF-2019M3E6A1064709), Korea University Future Research Grant (KU-FRG), and Korea Basic Science Institute (KBSI) under the R&D program (Project No. C38530) supervised by the Ministry of Science. Y.H. acknowledges the Global Ph.D. Fellowship (NRF-2018H1A2A1062618). The authors thank Korea Basic Science Institute (KBSI), Seoul and Busan Center, for the usage of their HRTEM instrument and AR-XPS system, respectively.
PY - 2020/9/22
Y1 - 2020/9/22
N2 - Postmodification of nanocrystals through cation exchange has been very successful in diversifying nanomaterial 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.
AB - Postmodification of nanocrystals through cation exchange has been very successful in diversifying nanomaterial 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.
KW - anion modulation
KW - cation exchange
KW - heterointerface
KW - hollow toroid
KW - phosphosulfide
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U2 - 10.1021/acsnano.0c02891
DO - 10.1021/acsnano.0c02891
M3 - Article
C2 - 32628443
AN - SCOPUS:85091576332
SN - 1936-0851
VL - 14
SP - 11205
EP - 11214
JO - ACS Nano
JF - ACS Nano
IS - 9
ER -