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Jo S, Lee CH, Jin H, Lee E, Kim T, Baik H, Lee SU, Yoo SJ, Lee K, Park J. Remnant Copper Cation-Assisted Atom Mixing in Multicomponent Nanoparticles. ACS NANO 2024; 18:15705-15715. [PMID: 38848500 DOI: 10.1021/acsnano.4c01997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Nanostructured high-/medium-entropy compounds have emerged as important catalytic materials for energy conversion technologies, but complex thermodynamic relationships involved with the element mixing enthalpy have been a considerable roadblock to the formation of stable single-phase structures. Cation exchange reactions (CERs), in particular with copper sulfide templates, have been extensively investigated for the synthesis of multicomponent heteronanoparticles with unconventional structural features. Because copper cations within the host copper sulfide templates are stoichiometrically released with incoming foreign cations in CERs to maintain the overall charge balance, the complete absence of Cu cations in the nanocrystals after initial CERs would mean that further compositional variation would not be possible by subsequent CERs. Herin, we successfully retained a portion of Cu cations within the silver sulfide (Ag2S) and gold sulfide (Au2S) phases of Janus Cu2-xS-M2S (M = Ag, Au) nanocrystals after the CERs, by partially suppressing the transformation of the anion sublattice that inevitably occurs during the introduction of external cations. Interestingly, the subsequent CERs on Janus Cu1.81S-M2S (M = Ag, Au), by utilizing the remnant Cu cations, allowed the construction of Janus Cu1.81S-AgxAuyS, which preserved the initial heterointerface. The synthetic strategy described in this work to suppress the complete removal of the Cu cation from the template could fabricate the CER-driven heterostructures with greatly diversified compositions, which exhibit unusual optical and catalytic properties.
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Affiliation(s)
- Suin Jo
- Department of Chemistry, Kyonggi University, Suwon 16227, Republic of Korea
| | - Chi Ho Lee
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Texas A&M Energy Institute, College Station, Texas 77843, United States
| | - Haneul Jin
- Department of Energy and Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Eunsoo Lee
- Department of Chemistry and Research Institute for Nature Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Taekyung Kim
- Korea Basic Science Institute (KBSI), Seoul 02841, Republic of Korea
| | - Hionsuck Baik
- Korea Basic Science Institute (KBSI), Seoul 02841, Republic of Korea
| | - Sang Uck Lee
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sung Jong Yoo
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Nature Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Jongsik Park
- Department of Chemistry, Kyonggi University, Suwon 16227, Republic of Korea
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Chang L, Liu C, Jin Z, Li K, Ling X. Inhomogeneous Au 2S for Photoacoustic Imaging and Photodynamic Tumor Therapy Based on Different Forms of Energy Dissipation. ACS NANO 2024; 18:14925-14937. [PMID: 38808608 DOI: 10.1021/acsnano.3c13085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Nanomaterials with unique structures and components play a crucial role in nanomedicine. In this study, we discovered that the inhomogeneous Au2S constructed by cation exchange and acid etching could dissipate energy in different forms after absorbing multichromatic light, which could be used to achieve the integrated diagnosis and treatment of tumors, respectively. Folic acid modified Au2S ringed nanoparticles (FA-Au2S RNs) with an assembly-like structure were demonstrated to result in better PA imaging performance and generate more reactive oxygen species (O2·-, ·OH, and 1O2) than folic acid modified Au2S triangular nanoparticles (FA-Au2S TNs). Finite element analyses determined the reason for the high absorbance properties and synergistic enhancement of plasma resonance in the assembly-like structure of Au2S RNs. Both FA-Au2S nanostructures were modified with folic acid and injected into 4T1 tumor-bearing mice via the tail vein. The best PA imaging contrast was obtained under 700 nm laser illumination, and the most effective PDT antitumor activity was achieved under 1064 nm laser illumination. The PA average of the tumor in the FA-Au2S RN group was approximately 2 times higher than that of the FA-Au2S TN group at 24 h of injection. The PA imaging results of intratumorally injected FA-Au2S RNs proved that they were still able to show better PA signal enhancement at 24 h postinjection. Our study demonstrates that FA-Au2S nanomaterials with unique structures and special properties can be reliably produced using strictly controlled chemical synthesis. It further provides a strategy for the construction of highly sensitive PA imaging platforms and efficient PDT antitumor agents that exploit wavelength-dependent energy dissipation mechanisms.
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Affiliation(s)
- Ling Chang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoeletronics, Shenzhen University, Shenzhen 518060, China
| | - Chao Liu
- Department of Nuclear Medicine, Yunnan Cancer Hospital & The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Zhaokui Jin
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 510182, China
| | - Kun Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Xiang Ling
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoeletronics, Shenzhen University, Shenzhen 518060, China
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Li Z, Saruyama M, Asaka T, Teranishi T. Waning-and-waxing shape changes in ionic nanoplates upon cation exchange. Nat Commun 2024; 15:4899. [PMID: 38851762 PMCID: PMC11162454 DOI: 10.1038/s41467-024-49294-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 05/30/2024] [Indexed: 06/10/2024] Open
Abstract
Flexible control of the composition and morphology of nanocrystals (NCs) over a wide range is an essential technology for the creation of functional nanomaterials. Cation exchange (CE) is a facile method by which to finely tune the compositions of ionic NCs, providing an opportunity to obtain complex nanostructures that are difficult to form using conventional chemical synthesis procedures. However, due to their robust anion frameworks, CE cannot typically be used to modify the original morphology of the host NCs. In this study, we report an anisotropic morphological transformation of Cu1.8S NCs during CE. Upon partial CE of Cu1.8S nanoplates (NPLs) with Mn2+, the hexagonal NPLs are transformed into crescent-shaped Cu1.8S-MnS NPLs. Upon further CE, these crescent-shaped NPLs evolve back into completely hexagonal MnS NPLs. Comprehensive characterization of the intermediates reveals that this waxing-and-waning shape-evolution process is due to dissolution, redeposition, and intraparticle migration of Cu+ and S2-. Furthermore, in addition to Mn2+, this CE-induced transformation process occurs with Zn2+, Cd2+ and Fe3+. This finding presents a strategy by which to create heterostructured NCs with various morphologies and compositions under mild conditions.
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Affiliation(s)
- Zhanzhao Li
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan
| | - Masaki Saruyama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.
| | - Toru Asaka
- Division of Advanced Ceramics, Nagoya Institute of Technology, Nagoya, Aichi, Japan
| | - Toshiharu Teranishi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.
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Zheng L, Xu L, Gu P, Chen Y. Lattice engineering of noble metal-based nanomaterials via metal-nonmetal interactions for catalytic applications. NANOSCALE 2024; 16:7841-7861. [PMID: 38563756 DOI: 10.1039/d4nr00561a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Noble metal-based nanomaterials possess outstanding catalytic properties in various chemical reactions. However, the increasing cost of noble metals severely hinders their large-scale applications. A cost-effective strategy is incorporating noble metals with light nonmetal elements (e.g., H, B, C, N, P and S) to form noble metal-based nanocompounds, which can not only reduce the noble metal content, but also promote their catalytic performances by tuning their crystal lattices and introducing additional active sites. In this review, we present a concise overview of the recent advancements in the preparation and application of various kinds of noble metal-light nonmetal binary nanocompounds. Besides introducing synthetic strategies, we focus on the effects of introducing light nonmetal elements on the lattice structures of noble metals and highlight notable progress in the lattice strain engineering of representative core-shell nanostructures derived from these nanocompounds. In the meantime, the catalytic applications of the light element-incorporated noble metal-based nanomaterials are discussed. Finally, we discuss current challenges and future perspectives in the development of noble metal-nonmetal based nanomaterials.
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Affiliation(s)
- Long Zheng
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China.
| | - Lei Xu
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China.
| | - Ping Gu
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China.
| | - Ye Chen
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China.
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Kim T, Lee Y, Hong Y, Lee K, Baik H. Three-dimensional reconstruction of Y-IrNi rhombic dodecahedron nanoframe by STEM/EDS tomography. Appl Microsc 2023; 53:9. [PMID: 37731139 PMCID: PMC10511395 DOI: 10.1186/s42649-023-00092-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 06/27/2023] [Indexed: 09/22/2023] Open
Abstract
The structural analysis of nanocrystals via transmission electron microscopy (TEM) is a valuable technique for the material science field. Recently, two-dimensional images by scanning TEM (STEM) and energy-dispersive X-ray spectroscopy (EDS) have successfully extended to three-dimensional (3D) imaging by tomography. However, despite improving TEM instruments and measurement techniques, detector shadowing, the missing-wedge problem, X-ray absorption effects, etc., significant challenges still remain; therefore, the various required corrections should be considered and applied when performing quantitative tomography. Nonetheless, this 3D reconstruction technique can facilitate active site analysis and the development of nanocatalyst systems, such as water electrolysis and fuel cell. Herein, we present a 3D reconstruction technique to obtain tomograms of IrNi rhombic dodecahedral nanoframes (IrNi-RFs) from STEM and EDS images by applying simultaneous iterative reconstruction technique and total variation minimization algorithms. From characterizing the morphology and spatial chemical composition of the Ir and Ni atoms in the nanoframes, we were able to infer the origin of the physical and catalytic durability of IrNi-RFs. Also, by calculating the surface area and volume of the 3D reconstructed model, we were able to quantify the Ir-to-Ni composition ratio and compare it to the EDS measurement result.
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Affiliation(s)
- Taekyung Kim
- Korea Basic Science Institute, Seoul, 02841, Republic of Korea
| | - Yongsang Lee
- Korea Basic Science Institute, Seoul, 02841, Republic of Korea
| | - Yongju Hong
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul, 02841, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul, 02841, Republic of Korea
| | - Hionsuck Baik
- Korea Basic Science Institute, Seoul, 02841, Republic of Korea.
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O'Boyle SK, Baumler KJ, Schaak RE. Unexpected Multi-Step Transformation of AgCuS to AgAuS During Nanoparticle Cation Exchange. Inorg Chem 2023; 62:13050-13057. [PMID: 37527400 DOI: 10.1021/acs.inorgchem.3c01869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Cation exchange reactions can modify the compositions of colloidal nanoparticles, providing easy access to compounds or nanoparticles that may not be accessible directly. The most common nanoparticle cation exchange reactions replace monovalent cations with divalent cations or vice versa, but some monovalent-to-monovalent exchanges have been reported. Here, we dissect the reaction of as-synthesized AgCuS nanocrystals with Au+ to form AgAuS, initially hypothesizing that Au+ could be selective for Cu+ (rather than for Ag+) based on a known Au+-for-Cu+ exchange and the stability of the targeted AgAuS product. Unexpectedly, we found this system and the putative cation exchange reaction to be much more complex than anticipated. First, the starting AgCuS nanoparticles, which match literature reports, are more accurately described as a hybrid of Ag and a variant of AgCuS that is structurally related to mckinstryite Ag5Cu3S4. Second, the initial reaction of Ag-AgCuS with Au+ results in a galvanic replacement to transform the Ag component to a AuyAg1-y alloy. Third, continued reaction with Au+ initiates cation exchange with Cu+ in AuyAg1-y-AgCuS to form AuyAg1-y-Ag3CuxAu1-xS2 and then AuyAg1-y-AgAuS, which is the final product. Crystal structure relationships among mckinstryite-type AgCuS, Ag3CuxAu1-xS2, and AgAuS help to rationalize the transformation pathway. These insights into the reaction of AgCuS with Au+ reveal the potential complexity of seemingly simple nanoparticle reactions and highlight the importance of thorough compositional, structural, and morphological characterization before, during, and after such reactions.
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Li WH, Xu HM, Shi L, Zheng D, Gu C, Han SK. Region-Controlled Framework Interface Mediated Anion Exchange Chemical Transformation to Designed Metal Phosphosulfide Heteronanostructures. NANO LETTERS 2023; 23:3858-3865. [PMID: 37126737 DOI: 10.1021/acs.nanolett.3c00464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
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 Cu1.81S frameworks with corner-, edge- and face-controlled growth of Co2P domains. The region-controlled Cu1.81S-Co2P 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 Cu3P1-xSx-Co2P 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.
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Affiliation(s)
- Wan-Hong Li
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hou-Ming Xu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lei Shi
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Dong Zheng
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chao Gu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Shi-Kui Han
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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Park J, Kim HK, Park J, Kim B, Baik H, Baik MH, Lee K. Flattening bent Janus nanodiscs expands lattice parameters. Chem 2023. [DOI: 10.1016/j.chempr.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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9
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Hong Y, Venkateshalu S, Jeong S, Park J, Lee K. Regiospecific Cation Exchange in Nanocrystals and Its Potential in Diversifying the Nanostructural Library. SMALL SCIENCE 2022. [DOI: 10.1002/smsc.202200063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Yongju Hong
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul 02841 Republic of Korea
| | - Sandhya Venkateshalu
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul 02841 Republic of Korea
| | - Sangyeon Jeong
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul 02841 Republic of Korea
| | - Jongsik Park
- Department of Chemistry Kyonggi University Suwon 16227 Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences Korea University Seoul 02841 Republic of Korea
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10
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Engineering Gas–Solid–Liquid Triple-Phase Interfaces for Electrochemical Energy Conversion Reactions. ELECTROCHEM ENERGY R 2022. [DOI: 10.1007/s41918-022-00133-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Jin H, Kim HS, Lee CH, Hong Y, Choi J, Baik H, Lee SU, Yoo SJ, Lee K, Park HS. Directing the Surface Atomic Geometry on Copper Sulfide for Enhanced Electrochemical Nitrogen Reduction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haneul Jin
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul02792, Republic of Korea
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul04620, Republic of Korea
| | - Hee Soo Kim
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul02792, Republic of Korea
- Green Materials & Processes R&D Group, Korea Institute of Industrial Technology 55, Jongga-ro, Jung-gu, Ulsan44413, Republic of Korea
| | - Chi Ho Lee
- Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan15588, Republic of Korea
| | - Yongju Hong
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul02841, Republic of Korea
| | - Jihyun Choi
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul02792, Republic of Korea
| | - Hionsuck Baik
- Seoul Center, Korea Basic Science Institute (KBSI), Seoul02841, Republic of Korea
| | - Sang Uck Lee
- Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan15588, Republic of Korea
| | - Sung Jong Yoo
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul02447, Republic of Korea
- Division of Energy & Environment Technology, KIST School, University of Science and Technology (UST), Seoul02792, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul02841, Republic of Korea
| | - Hyun S. Park
- Hydrogen Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul02447, Republic of Korea
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Chen L, Kong Z, Hu H, Tao H, Wang Y, Gao J, Li G. Manipulating Cation Exchange Reactions in Cu 2-xS Nanoparticles via Crystal Structure Transformation. Inorg Chem 2022; 61:9063-9072. [PMID: 35671331 DOI: 10.1021/acs.inorgchem.2c00532] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Copper-deficient Cu2-xS nanoparticles (NPs) are extensively exploited as a superior cation exchange (CE) template to yield sophisticated nanostructures. Recently, it has been discovered that their CE reactions can be facilely manipulated by copper vacancy density, morphology, and NP size. However, the structural similarity of usually utilized Cu2-xS somewhat limits the manipulation of the CE reactions through the factor of crystal structure because it can strongly influence the process of the reaction. Herein, we report a methodology of crystal structure transformation to manipulate the CE reactions. Particularly, roxbyite Cu1.8S nanodisks (NDs) were converted into solid wurtzite CdS NDs and Janus-type Cu1.94S/CdS NDs by a "full"/partial CE reaction with Cd2+. Afterward, the roxbyite Cu1.8S were pseudomorphically transformed into covellite CuS NDs. Unlike Cu1.8S, the CuS was scarcely exchanged because of the unique disulfide (S-S) bonds and converted into hollow wurtzite CdS under a more reactive condition. The S-S bonds were gradually split and CuS@CdS core@shell-type NDs were generated. Therefore, our findings in the present study provide not only a versatile technique to manipulate CE reactions in Cu2-xS NPs but also a better comprehension of their reaction dynamics and pathways.
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Affiliation(s)
- Lihui Chen
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, No. 1, Haida South Road, Lincheng Changzhi Island, Zhoushan 316022, China
| | - Zhenzhen Kong
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China
| | - Haifeng Hu
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China
| | - Hengcong Tao
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, No. 1, Haida South Road, Lincheng Changzhi Island, Zhoushan 316022, China
| | - Yuhua Wang
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, No. 1, Haida South Road, Lincheng Changzhi Island, Zhoushan 316022, China
| | - Jing Gao
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China
| | - Guohua Li
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China
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Kim HS, Jin H, Kim SH, Choi J, Lee DW, Ham HC, Yoo SJ, Park HS. Sacrificial Dopant to Enhance the Activity and Durability of Electrochemical N 2 Reduction Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00089] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hee Soo Kim
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- KEPCO Research Institute, Korea Electric Power Corporation, 105 Munji-ro, Yuseong-gu, Daejeon 34056, Republic of Korea
| | - Haneul Jin
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Seung-Hoon Kim
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Graduate School of Energy & Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jihyun Choi
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Dong Wook Lee
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Hyung Chul Ham
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Republic of Korea
| | - Sung Jong Yoo
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
- Division of Energy & Environment Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Hyun S. Park
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
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14
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Jun M, Kwon T, Son Y, Kim B, Lee K. Chemical Fields: Directing Atom Migration in the Multiphasic Nanocrystal. Acc Chem Res 2022; 55:1015-1024. [PMID: 35263076 DOI: 10.1021/acs.accounts.1c00745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ConspectusAtoms in a bulk solid phase are usually trapped to fixed positions and can change their position only under certain conditions (e.g., at a melting point) due to the high energy barrier of migration between positions within the crystal lattice. Contrary to the atoms in the bulk solid phase, however, atoms in nanoparticles can migrate and change their local positions rather easily, enabled by the high surface energies. The energy states of surface atoms of nanoparticles can be altered by surface-binding moieties, which in turn influence the intrananoparticle migration of atoms at the subsurface of nanoparticles. In 2008, this possibility of intrananoparticle migration was demonstrated with RhPd alloy nanoparticles under the different gas environments of reductive CO or oxidative NO. We envisaged that the explosive expansion of well-defined, multiphasic nanoparticle libraries might be realized by specifically dictating the atom migration direction, by modulating the energy state of specific atoms in the multiphasic nanocrystals. The nanoparticle surface energy is a function of a myriad of factors, namely, surface binding moiety, structural features affecting coordination number of atoms such as nanoparticle geometry, steps, and kinks, and the existence of heterointerface with lattice mismatch. Therefore, all these factors affecting atom energy state in the nanoparticle, categorically termed as "chemical field" (CF), can serve as the driving force for purposeful directional movement of atoms within nanoparticles and subsequent reaction. Geometrically well-defined multiphasic nanocrystals present great promises toward various applications with special emphasis on catalysis and thus are worthy synthetic targets. In recent years, we have demonstrated that manipulation of CFs is an effective synthetic strategy for a variety of geometrically well-defined multiphasic nanocrystals. Herein, we classified multiphasic nanocrystals into metallic alloy systems and ionic systems (metal compounds) because the modes of CF are rather different between these two systems. The migration-directing CFs for neutral metallic atoms are mostly based on the local distribution of elements, degree of alloying, or highly energetic structural features. On the other hand, for the ionic system, structural parameters originating from the discrepancy between cations and anions should be more considered; ionic radii, phase stability, lattice strain, anionic frameworks, cation vacancies, etc. can react as CFs affecting atom migration behavior in the multiphasic ionic nanocrystals. We expect that the limits and potentials of CF-based synthesis of multiphasic nanocrystals described in this work will open a wide avenue to diverse material compositions and geometries, which have been difficult or impossible to approach via conventional nanoparticle synthesis schemes.
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Affiliation(s)
- Minki Jun
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Taehyun Kwon
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Yunchang Son
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Byeongyoon Kim
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
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15
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Chen L, Kong Z, Tao H, Hu H, Gao J, Li G. Crystal structure dependent cation exchange reactions in Cu 2-xS nanoparticles. NANOSCALE 2022; 14:3907-3916. [PMID: 35224594 DOI: 10.1039/d1nr08077f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Because of high mobility of Cu+ in crystal lattice, Cu2-xS nanoparticles (NPs) utilized as cation exchange (CE) templates to produce complicated nanomaterials has been extensively investigated. Nevertheless, the structural similarity of commonly used Cu2-xS somewhat limits the exploration of crystal structure dependent CE reactions, since it may dramatically affect the reaction dynamics and pathways. Herein, we select djurleite Cu1.94S and covellite CuS nanodisks (NDs) as starting templates and show that the crystal structure has a strong effect on their CE reactions. In the case of djurleite Cu1.94S NDs, the Cu+ was immediately substituted by Cd2+ and solid wurtzite CdS NDs were produced. At a lower reaction temperature, these NDs were partially substituted, giving rise to the formation of Janus-type Cu1.94S/CdS NDs, and this process is kinetically and thermodynamically favorable. For covellite CuS NDs, they were transformed into hollow CdS NDs under a more aggressive reaction condition due to the unique disulfide covalent bonds. These disulfide bonds distributed along [0 0 1] direction were gradually ruptured/reduced and CuS@CdS core-shell NDs could be obtained. Our findings suggest that not only the CE reaction kinetics and thermodynamics, but also the intermediates and final products are intimately correlated to the crystal structure of the host material.
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Affiliation(s)
- Lihui Chen
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, No. 1, Haida South Road, Lincheng Changzhi Island, Zhoushan 316022, China.
| | - Zhenzhen Kong
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China.
| | - Hengcong Tao
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, No. 1, Haida South Road, Lincheng Changzhi Island, Zhoushan 316022, China.
| | - Haifeng Hu
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China.
| | - Jing Gao
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China.
| | - Guohua Li
- College of Chemical Engineering, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou 310014, China.
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16
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Kapuria N, Patil NN, Ryan KM, Singh S. Two-dimensional copper based colloidal nanocrystals: synthesis and applications. NANOSCALE 2022; 14:2885-2914. [PMID: 35156983 DOI: 10.1039/d1nr06990j] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) semiconductor nanocrystals display unconventional physical and opto-electronic properties due to their ultrathin and unique electronic structures. Since the success of Cd-based photoemissive nanocrystals, the development of sustainable and low-cost nanocrystals with enhanced electronic and physical properties has become a central research theme. In this context, copper-based semiconductor 2D nanocrystals, the cost-effective and eco-friendly alternative, exhibit unique plasmonic resonance, transport properties, and high ionic conductivity beneficial for sensing, energy storage, conversion, and catalytic applications. This review summarizes recent progress in the colloidal synthesis, growth mechanisms, properties, and applications of 2D copper-based nanostructures with tunable compositions, dimensions, and crystal phases. We highlight the growth mechanisms concerning their shape evolution in two dimensions. We analyse the effectiveness of cation exchange as a tool to synthesize multinary nanocrystals. Based on the preparation of Cu-based chalcogenide and non-chalcogenide compositions, we discuss synthesis control achieved via colloidal approaches to allow dimension tunability, phase engineering, and plasmonic and thermoelectric property optimization. Furthermore, their potential in various applications of catalysis, energy storage, and sensing is reviewed. Finally, we address the current challenges associated with 2D Cu-based nanocrystal development and provide an outlook pertaining to unexplored research areas.
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Affiliation(s)
- Nilotpal Kapuria
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
| | - Niraj Nitish Patil
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
| | - Kevin M Ryan
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
| | - Shalini Singh
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland.
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17
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Li Z, Saruyama M, Asaka T, Tatetsu Y, Teranishi T. Determinants of crystal structure transformation of ionic nanocrystals in cation exchange reactions. Science 2021; 373:332-337. [PMID: 34437152 DOI: 10.1126/science.abh2741] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/04/2021] [Indexed: 01/03/2023]
Abstract
Changes in the crystal system of an ionic nanocrystal during a cation exchange reaction are unusual yet remain to be systematically investigated. In this study, chemical synthesis and computational modeling demonstrated that the height of hexagonal-prism roxbyite (Cu1.8S) nanocrystals with a distorted hexagonal close-packed sulfide anion (S2-) sublattice determines the final crystal phase of the cation-exchanged products with Co2+ [wurtzite cobalt sulfide (CoS) with hexagonal close-packed S2- and/or cobalt pentlandite (Co9S8) with cubic close-packed S2-]. Thermodynamic instability of exposed planes drives reconstruction of anion frameworks under mild reaction conditions. Other incoming cations (Mn2+, Zn2+, and Ni2+) modulate crystal structure transformation during cation exchange reactions by various means, such as volume, thermodynamic stability, and coordination environment.
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Affiliation(s)
- Zhanzhao Li
- Department of Chemistry, Graduate School of Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Masaki Saruyama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
| | - Toru Asaka
- Division of Advanced Ceramics and Frontier Research Institute for Materials Science, Nagoya Institute of Technology, Nagoya, Aichi 466-8555, Japan
| | - Yasutomi Tatetsu
- University Center for Liberal Arts Education, Meio University, Nago 905-8585, Japan
| | - Toshiharu Teranishi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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18
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Yin D, Li Q, Liu Y, Swihart MT. Anion exchange induced formation of kesterite copper zinc tin sulphide-copper zinc tin selenide nanoheterostructures. NANOSCALE 2021; 13:4828-4834. [PMID: 33650624 DOI: 10.1039/d0nr08991e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report the colloidal synthesis of quaternary kesterite CZTS-CZTSe heterostructures via anion exchange reactions on a kesterite CZTS template. The crystal phase selectivity during the synthesis (kesterite vs. wurtzite) is due to the initial nucleation of cubic Cu9S5 seeds, followed by incorporation of Zn and Sn. Upon injection of Se-precursor, which triggered simultaneous anion exchange and overgrowth of the pristine CZTS template, sandwich CZTS-CZTSe (core-tip) nanoheterostructures were obtained. X-ray photoelectron spectroscopy (XPS) and optical band gap measurement results suggest a change of intrinsic electronic structure of CZTS by Se-treatment. Our study not only provides insight into mechanisms of formation of kesterite CZTS nanocrystals (NCs) and subsequent anion exchange reactions, but also opens doors to access novel CZTSSe nanostructures for potential applications.
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Affiliation(s)
- Deqiang Yin
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA.
| | - Qi Li
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA.
| | - Yang Liu
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA.
| | - Mark T Swihart
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA.
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19
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Li J, Li J, Dun C, Chen W, Zhang D, Gu J, Urban JJ, Ager JW. Copper sulfide as the cation exchange template for synthesis of bimetallic catalysts for CO 2 electroreduction. RSC Adv 2021; 11:23948-23959. [PMID: 35478999 PMCID: PMC9036827 DOI: 10.1039/d1ra03811g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 06/21/2021] [Indexed: 12/29/2022] Open
Abstract
Among metals used for CO2 electroreduction in water, Cu appears to be unique in its ability to produce C2+ products like ethylene. Bimetallic combinations of Cu with other metals have been investigated with the goal of steering selectivity via creating a tandem pathway through the CO intermediate or by changing the surface electronic structure. Here, we demonstrate a facile cation exchange method to synthesize Ag/Cu electrocatalysts for CO2 reduction using Cu sulfides as a growth template. Beginning with Cu2−xS nanosheets (C-nano-0, 100 nm lateral dimension, 14 nm thick), varying the Ag+ concentration in the exchange solution produces a gradual change in crystal structure from Cu7S4 to Ag2S, as the Ag/Cu mass ratio varies from 0.3 to 25 (CA-nano-x, x indicating increasing Ag fraction). After cation exchange, the nanosheet morphology remains but with increased shape distortion as the Ag fraction is increased. Interestingly, the control (C-nano-0) and cation exchanged nanosheets have very high faradaic efficiency for producing formate at low overpotential (−0.2 V vs. RHE). The primary effect of Ag incorporation is increased production of C2+ products at −1.0 V vs. RHE compared with C-nano-0, which primarily produces formate. Cation exchange can also be used to modify the surface of Cu foils. A two-step electro-oxidation/sulfurization process was used to form Cu sulfides on Cu foil (C-foil-x) to a depth of a few 10 s of microns. With lower Ag+ concentrations, cation exchange produces uniformly dispersed Ag; however, at higher concentrations, Ag particles nucleate on the surface. During CO2 electroreduction testing, the product distribution for Ag/Cu sulfides on Cu foil (CA-foil-x-y) changes in time with an initial increase in ethylene and methane production followed by a decrease as more H2 is produced. The catalysts undergo a morphology evolution towards a nest-like structure which could be responsible for the change in selectivity. For cation-exchanged nanosheets (CA-nano-x), pre-reduction at negative potentials increases the CO2 reduction selectivity compared to tests of as-synthesized material, although this led to the aggregation of nanosheets into filaments. Both types of bimetallic catalysts are capable of selective reduction of CO2 to multi-carbon products, although the optimal configurations appear to be metastable. Cu sulfides as a template for Ag/Cu sulfide catalysts for electrochemical CO2. With the introduction of Ag, nanosheet show increased C2+ product generation. The catalysts undergo a morphology evolution as CO2 reduction proceeds.![]()
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Affiliation(s)
- Jinghan Li
- State Key Laboratory of Metal Matrix Composites
- School of Materials Science and Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Junrui Li
- Joint Center for Artificial Photosynthesis
- Materials Sciences Division and Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Chaochao Dun
- The Molecular Foundry
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Wenshu Chen
- The School of Environmental Science
- Nanjing Key Laboratory of Advanced Functional Materials
- Nanjing Xiaozhuang University
- Nanjing
- China
| | - Di Zhang
- State Key Laboratory of Metal Matrix Composites
- School of Materials Science and Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Jiajun Gu
- State Key Laboratory of Metal Matrix Composites
- School of Materials Science and Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Jeffrey J. Urban
- The Molecular Foundry
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Joel W. Ager
- Joint Center for Artificial Photosynthesis
- Materials Sciences Division and Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
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20
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Steimle BC, Fenton JL, Schaak RE. Rational construction of a scalable heterostructured nanorod megalibrary. Science 2020; 367:418-424. [DOI: 10.1126/science.aaz1172] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/06/2019] [Indexed: 12/17/2022]
Abstract
Integrating multiple materials in arbitrary arrangements within nanoparticles is a prerequisite for advancing many applications. Strategies to synthesize heterostructured nanoparticles are emerging, but they are limited in complexity, scope, and scalability. We introduce two design guidelines, based on interfacial reactivity and crystal structure relations, that enable the rational synthesis of a heterostructured nanorod megalibrary. We define synthetically feasible pathways to 65,520 distinct multicomponent metal sulfide nanorods having as many as 6 materials, 8 segments, and 11 internal interfaces by applying up to seven sequential cation-exchange reactions to copper sulfide nanorod precursors. We experimentally observe 113 individual heterostructured nanorods and demonstrate the scalable production of three samples. Previously unimaginable complexity in heterostructured nanorods is now routinely achievable with simple benchtop chemistry and standard laboratory glassware.
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Affiliation(s)
- Benjamin C. Steimle
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
| | - Julie L. Fenton
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
| | - Raymond E. Schaak
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
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21
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Chen AN, Skrabalak SE. Molecular-like selectivity emerges in nanocrystal chemistry. Dalton Trans 2020; 49:12530-12535. [DOI: 10.1039/d0dt01168a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Applying the molecular concepts of regioselectivity and chemoselectivity to nanocrystal chemistry is giving access to complex nanostructures with spatial precision.
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22
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Kim J, Jun M, Choi S, Jo J, Lee K. Reactive nanotemplates for synthesis of highly efficient electrocatalysts: beyond simple morphology transfer. NANOSCALE 2019; 11:20392-20410. [PMID: 31651011 DOI: 10.1039/c9nr05750a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Efficient electrocatalysts for energy conversion in general, and fuel cell operation and water electrolysis in particular, are pivotal for carbon-free hydrogen production. While the requirements of successful electrocatalysts include a high number density of catalytically active sites, high surface-to-volume ratio, inherently high catalytic activity, and robustness of the catalyst surface structure under harsh operating conditions, it is extremely difficult to synthesize nanocatalysts that could possess all these structural characteristics. Nanotemplate-mediated synthesis, namely, the coating or filling of a template with a desired material phase followed by the removal of the template, has captured the interest of researchers because of the ease of creating hollow-structured nanocatalysts with a high surface to volume ratio. Recent studies, however, have revealed that nanotemplates could be more than just passive supports because they greatly affect catalytic performance by creating an unusual synergy between the substrate and catalyst and by providing dopants to the actual catalyst phase owing to their reactive nature. In this review, we discuss the most notable recent advances in the nanotemplate-based synthesis of electrocatalysts as well as the unusual effects of nanotemplates on the performance of nanocatalysts. We also provide an outlook for this fledgling field so that future research efforts could be focused on the development of practically useful electrocatalysts that could shape the future of energy technologies.
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Affiliation(s)
- Jun Kim
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Minki Jun
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Songa Choi
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Jinhyoung Jo
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea.
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23
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Kim T, Park J, Hong Y, Oh A, Baik H, Lee K. Janus to Core-Shell to Janus: Facile Cation Movement in Cu 2-xS/Ag 2S Hexagonal Nanoplates Induced by Surface Strain Control. ACS NANO 2019; 13:11834-11842. [PMID: 31573797 DOI: 10.1021/acsnano.9b05784] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanocrystals with multiple compositions and heterointerfaces have received great attention due to promising multifunctional and synergistic physicochemical properties. In particular, heterointerfaces have been at the focal point of nanocatalyst research because the strain caused by lattice mismatches between different phases is the dominant determinant of surface energy and catalytic activity. The ensemble effects of different material phases have also contributed to the interest in heterointerfaced multicomponent materials. Until now, heterointerfaces have largely been regarded as static, and the dynamic movement of components within the multicomponent material phases has received little attention, although the dynamic movement of individual components within multicomponent materials can revise the interpretation of the catalytic behaviors of these materials and lead to fascinating opportunities for nanostructure synthesis. In this study, we demonstrate unprecedented cation migrations within a sulfide matrix induced by surface strain modulation initiated by cation exchange. Specifically, Cu and Ag cations in the sulfide matrix were initially segregated to form a Janus structure. This Janus configuration was then transformed into a core-shell Cu2-xS@Ag2S structure via surface Pt doping. When the surface strain was relieved by a reduced Pt concentration at the nanoparticle surface, the core-shell transitioned back into a Janus structure. We expect that the facile composition fluctuations in multiphasic nanostructures will expand synthetic methodologies for the design and synthesis of intricate nanostructures with useful physicochemical properties.
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Affiliation(s)
- Taekyung Kim
- Department of Chemistry and Research Institute for Natural Scieneces , Korea University , Seoul 02841 , Korea
| | - Jongsik Park
- Department of Chemistry and Research Institute for Natural Scieneces , Korea University , Seoul 02841 , Korea
| | - Yongju Hong
- Department of Chemistry and Research Institute for Natural Scieneces , Korea University , Seoul 02841 , Korea
| | - Aram Oh
- Korea Basic Science Institute (KBSI) , Seoul 02841 , Korea
| | - Hyunsuck Baik
- Korea Basic Science Institute (KBSI) , Seoul 02841 , Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Scieneces , Korea University , Seoul 02841 , Korea
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24
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Cho G, Park Y, Hong YK, Ha DH. Ion exchange: an advanced synthetic method for complex nanoparticles. NANO CONVERGENCE 2019; 6:17. [PMID: 31155686 PMCID: PMC6545297 DOI: 10.1186/s40580-019-0187-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/29/2019] [Indexed: 05/06/2023]
Abstract
There have been tremendous efforts to develop new synthetic methods for creating novel nanoparticles (NPs) with enhanced and desired properties. Among the many synthetic approaches, NP synthesis through ion exchange is a versatile and powerful technique providing a new pathway to design complex structures as well as metastable NPs, which are not accessible by conventional syntheses. Herein, we introduce kinetic and thermodynamic factors controlling the ion exchange reactions in NPs to fully understand the fundamental mechanisms of the reactions. Additionally, many representative examples are summarized to find related advanced techniques and unique NPs constructed by ion exchange reactions. Cation exchange reactions mainly occur in chalcogenide compounds, while anion exchange reactions are mainly involved in halogen (e.g. perovskite) and metal-chalcogenide compounds. It is expected that NP syntheses through ion exchange reactions can be utilized to create new devices with the required properties by virtue of their versatility and ability to tune fine structures.
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Affiliation(s)
- Geonhee Cho
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Yoonsu Park
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Yun-Kun Hong
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Don-Hyung Ha
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
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25
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Joo J, Kim T, Lee J, Choi SI, Lee K. Morphology-Controlled Metal Sulfides and Phosphides for Electrochemical Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806682. [PMID: 30706578 DOI: 10.1002/adma.201806682] [Citation(s) in RCA: 211] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/01/2018] [Indexed: 05/20/2023]
Abstract
Because H2 is considered a promising clean energy source, water electrolysis has attracted great interest in related research and technology. Noble-metal-based catalysts are used as electrode materials in water electrolyzers, but their high cost and low abundance have impeded them from being used in practical areas. Recently, metal sulfides and phosphides based on earth-abundant transition metals have emerged as promising candidates for efficient water-splitting catalysts. Most studies have focused on adjusting the composition of the metal sulfides and phosphides to enhance the catalytic performance. However, morphology control of catalysts, including faceted and hollow structures, is much less explored for these systems because of difficulties in the synthesis, which requires a deep understanding of the nanocrystal growth process. Herein, representative synthetic methods for morphology-controlled metal sulfides and phosphides are introduced to provide insights into these methodologies. The electrolytic performance of morphology-controlled metal sulfide- and phosphide-based nanocatalysts with enhanced surface area and intrinsically high catalytic activity is also summarized and the future research directions for this promising catalyst group is discussed.
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Affiliation(s)
- Jinwhan Joo
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Taekyung Kim
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Jaeyoung Lee
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Sang-Il Choi
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
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26
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Liu M, Liu Y, Gu B, Wei X, Xu G, Wang X, Swihart MT, Yong KT. Recent advances in copper sulphide-based nanoheterostructures. Chem Soc Rev 2019; 48:4950-4965. [DOI: 10.1039/c8cs00832a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This tutorial summarizes and integrates recent advances in design and synthesis of copper sulfide-based nanoheterostructures and their applications in energy and healthcare.
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Affiliation(s)
- Maixian Liu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen
- China
| | - Yang Liu
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
| | - Bobo Gu
- Med-X Research Institute and Department of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Xunbin Wei
- Med-X Research Institute and Department of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Gaixia Xu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen
- China
| | - Xiaomei Wang
- Department of Physiology
- School of Basic Medical Sciences
- Shenzhen University
- Shenzhen
- China
| | - Mark T. Swihart
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering
- College of Engineering
- Nanyang Technological University
- Singapore
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