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Veglak JM, Tsai A, Soliman SS, Dey GR, Schaak RE. Disentangling Competitive and Synergistic Chemical Reactivities During the Seeded Growth of High-Entropy Alloys on High-Entropy Metal Sulfide Nanoparticles. J Am Chem Soc 2024; 146:19521-19536. [PMID: 38970561 DOI: 10.1021/jacs.4c06412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2024]
Abstract
The seeded growth of one type of nanoparticle on the surface of another is foundational to synthesizing many multifunctional nanostructures. High-entropy nanoparticles that randomly incorporate five or more elements offer enhanced properties due to synergistic interactions. Incorporating high-entropy nanoparticles into seeded growth platforms is essential for merging their unique properties with the functional enhancements that arise from particle-particle interactions. However, the complex compositions of high-entropy materials complicate the seeded growth process due to competing particle growth and chemical reactivity pathways. Here, we design and synthesize a 36-member nanoparticle library to identify and disentangle these competitive interactions, ultimately defining chemical characteristics that underpin the seeded growth of high-entropy alloys on high-entropy metal sulfide nanoparticles. As a model system, we focus on (Cu,Zn,Co,In,Ga)S-SnPdPtRhIr, which combines a high-entropy metal sulfide semiconductor with a high-entropy alloy catalyst. We study the seeded growth of all possible pairwise combinations of Sn, Pd, Pt, Rh, Ir, and SnPdPtRhIr on the metal sulfides Cu1.8S, ZnS, Co9S8, CuInS2, CuGaS2, and (Cu,Zn,Co,In,Ga)S, which have comparable morphologies and sizes. Through these studies, we uncover unexpected chemical reactivities, including cation exchange, redox reactions, and diffusion. Reaction temperature, threshold reduction potentials, metal/sulfide chemical reactivity, and the relative strengths of the various bonds that could be formed during particle growth emerge as the primary factors that underpin seeded growth. Finally, we disentangle these competitive and synergistic chemical reactivities to generate a reactivity map that provides practical guidelines for achieving seeded growth in compositionally complex systems.
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Affiliation(s)
- Joseph M Veglak
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Aaron Tsai
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Samuel S Soliman
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Gaurav R Dey
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Raymond E Schaak
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemical Engineering and, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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2
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Radhakrishnan J, Kareem A, Ratna S, Senthilkumar S, Biswas K. Snowflake-like Metastable Wurtzite CuGaS 2/MoS 2 Composite with Superior Electrochemical HER Activity. ACS OMEGA 2022; 7:43883-43893. [PMID: 36506218 PMCID: PMC9730465 DOI: 10.1021/acsomega.2c05116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
In the present work, we report the synthesis of wurtzite CuGaS2 and its composite with MoS2 and explored their efficacy toward two important applications, viz. electrocatalytic hydrogen evolution reaction (HER) and adsorption of Rhodamine B dye. The CuGaS2 was synthesized via a low-temperature ethylenediamine-mediated solvothermal method. The obtained products were characterized by various techniques such as X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy to ascertain the phase formation, surface morphology, and elemental oxidation states. The electrocatalytic activity of the wurtzite CuGaS2 and CuGaS2/MoS2 composites toward HER was investigated, wherein the CuGaS2/MoS2 composite exhibited superior activity when compared to the pristine sample with a small Tafel slope of 56.2 mV dec-1 and an overpotential value of -464 mV at the current density of 10 mA cm-2. On the other hand, the synthesized CuGaS2 also showed an impressive adsorption behavior toward Rhodamine B dye with 99% adsorption in 60 min, which is relatively better than that observed with the composite material.
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Affiliation(s)
- Jagan Radhakrishnan
- Chemistry
Division, School of Advanced Sciences, Vellore
Institute of Technology, Chennai600127, India
| | - Abdul Kareem
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore632014, India
| | - Srabanti Ratna
- Chemistry
Division, School of Advanced Sciences, Vellore
Institute of Technology, Chennai600127, India
| | - Sellappan Senthilkumar
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore632014, India
| | - Krishnendu Biswas
- Chemistry
Division, School of Advanced Sciences, Vellore
Institute of Technology, Chennai600127, India
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3
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Abstract
Anisotropic heterostructures of colloidal nanocrystals embed size-, shape-, and composition-dependent electronic structure within variable three-dimensional morphology, enabling intricate design of solution-processable materials with high performance and programmable functionality. The key to designing and synthesizing such complex materials lies in understanding the fundamental thermodynamic and kinetic factors that govern nanocrystal growth. In this review, nanorod heterostructures, the simplest of anisotropic nanocrystal heterostructures, are discussed with respect to their growth mechanisms. The effects of crystal structure, surface faceting/energies, lattice strain, ligand sterics, precursor reactivity, and reaction temperature on the growth of nanorod heterostructures through heteroepitaxy and cation exchange reactions are explored with currently known examples. Understanding the role of various thermodynamic and kinetic parameters enables the controlled synthesis of complex nanorod heterostructures that can exhibit unique tailored properties. Selected application prospects arising from such capabilities are then discussed.
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Affiliation(s)
- Gryphon A Drake
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 United States
| | - Logan P Keating
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 United States
| | - Moonsub Shim
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 United States
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4
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Ye M, Li Y, Tang R, Liu S, Ma S, Liu H, Tao Q, Yang B, Wang X, Yue H, Zhu P. Pressure-induced bandgap engineering and photoresponse enhancement of wurtzite CuInS 2 nanocrystals. NANOSCALE 2022; 14:2668-2675. [PMID: 35107111 DOI: 10.1039/d1nr07721j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Wurtzite CuInS2 exhibits great potential for optoelectronic applications because of its excellent optical properties and good stability. However, exploring effective strategies to simultaneously optimize its optical and photoelectrical properties remains a challenge. In this study, the bandgap of wurtzite CuInS2 nanocrystals is successfully extended and the photocurrent is enhanced synchronously using external pressure. The bandgap of wurtzite CuInS2 increases with pressure and reaches an optimal value (1.5 eV) for photovoltaic solar energy conversion at about 5.9 GPa. Surprisingly, the photocurrent simultaneously increases nearly 3-fold and reaches the maximum value at this critical pressure. Theoretical calculation indicates that the pressure-induced bandgap extention in wurtzite CuInS2 may be attributed to an increased charge density and ionic polarization between the In-S atoms. The photocurrent preserves a relatively high photoresponse even at 8.8 GPa, but almost disappears above 10.3 GPa. The structural evolution demonstrates that CuInS2 undergoes a phase transformation from the wurtzite phase (P63mc) to the rock salt phase (Fm3̄m) at about 10.3 GPa, which resulted in a direct to indirect bandgap transition and fianlly caused a dramatic reduction in photocurrent. These results not only map a new route toward further increase in the photoelectrical performance of wurtzite CuInS2, but also advance the current research of AI-BIII-CVI2 materials.
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Affiliation(s)
- Meiyan Ye
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China.
| | - Yan Li
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China.
| | - Ruilian Tang
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, China.
- Center for High Pressure Science and Technology Advanced Research, Changchun, 130012, China
| | - Siyu Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China.
| | - Shuailing Ma
- DeutschesElektronen-Synchrotron DESY, Hamburg, 22607, Germany
| | - Haozhe Liu
- Center for High Pressure Science and Technology Advanced Research, Changchun, 130012, China
| | - Qiang Tao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China.
| | - Bin Yang
- Center for High Pressure Science and Technology Advanced Research, Changchun, 130012, China
| | - Xin Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China.
| | - Huijuan Yue
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Pinwen Zhu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China.
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5
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Zhao D, Wang M, Xiao G, Zou B. Thinking about the Development of High-Pressure Experimental Chemistry. J Phys Chem Lett 2020; 11:7297-7306. [PMID: 32787316 DOI: 10.1021/acs.jpclett.0c02030] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
High-pressure chemistry is an interdisciplinary science which uses high-pressure experiments and theories to study the interactions, reactions, and transformations among atoms or molecules. It has been extensively studied thus far and achieved rapid development over the past decades. However, what is next for high-pressure chemistry? In this Perspective, we mainly focus on the development of high-pressure experimental chemistry from our own viewpoint. An overview of the series of topics is as follows: (I) high pressure used as an effective tool to help resolve scientific disputes regarding phenomena observed under ambient conditions; (II) high-pressure reactions of interest to synthetic chemists; (III) utilizing chemical methods to quench the high-pressure phase; (IV) using high pressure to achieve what chemists want to do but could not do; (V) potential applications of in situ properties under high pressure. This Perspective is expected to offer future research opportunities for researchers to develop high-pressure chemistry and to inspire new endeavors in this area to promote the field of compression chemistry science.
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Affiliation(s)
- Dianlong Zhao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Meiyi Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
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6
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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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7
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Hinterding SOM, Berends AC, Kurttepeli M, Moret ME, Meeldijk JD, Bals S, van der Stam W, de Mello Donega C. Tailoring Cu + for Ga 3+ Cation Exchange in Cu 2-xS and CuInS 2 Nanocrystals by Controlling the Ga Precursor Chemistry. ACS NANO 2019; 13:12880-12893. [PMID: 31617701 PMCID: PMC6890264 DOI: 10.1021/acsnano.9b05337] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 10/16/2019] [Indexed: 05/22/2023]
Abstract
Nanoscale cation exchange (CE) has resulted in colloidal nanomaterials that are unattainable by direct synthesis methods. Aliovalent CE is complex and synthetically challenging because the exchange of an unequal number of host and guest cations is required to maintain charge balance. An approach to control aliovalent CE reactions is the use of a single reactant to both supply the guest cation and extract the host cation. Here, we study the application of GaCl3-L complexes [L = trioctylphosphine (TOP), triphenylphosphite (TPP), diphenylphosphine (DPP)] as reactants in the exchange of Cu+ for Ga3+ in Cu2-xS nanocrystals. We find that noncomplexed GaCl3 etches the nanocrystals by S2- extraction, whereas GaCl3-TOP is unreactive. Successful exchange of Cu+ for Ga3+ is only possible when GaCl3 is complexed with either TPP or DPP. This is attributed to the pivotal role of the Cu2-xS-GaCl3-L activated complex that forms at the surface of the nanocrystal at the onset of the CE reaction, which must be such that simultaneous Ga3+ insertion and Cu+ extraction can occur. This requisite is only met if GaCl3 is bound to a phosphine ligand, with a moderate bond strength, to allow facile dissociation of the complex at the nanocrystal surface. The general validity of this mechanism is demonstrated by using GaCl3-DPP to convert CuInS2 into (Cu,Ga,In)S2 nanocrystals, which increases the photoluminescence quantum yield 10-fold, while blue-shifting the photoluminescence into the NIR biological window. This highlights the general applicability of the mechanistic insights provided by our work.
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Affiliation(s)
- Stijn O. M. Hinterding
- Condensed Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, P.O. Box 80000, 3508
TA Utrecht, The Netherlands
| | - Anne C. Berends
- Condensed Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, P.O. Box 80000, 3508
TA Utrecht, The Netherlands
| | - Mert Kurttepeli
- Electron Microscopy for Materials Science (EMAT),
University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp,
Belgium
| | - Marc-Etienne Moret
- Organic Chemistry and Catalysis, Debye Institute for
Nanomaterials Science, Utrecht University, Universiteitsweg 99,
3584 CG Utrecht, The Netherlands
| | - Johannes D. Meeldijk
- Electron Microscopy Utrecht, Debye Institute for
Nanomaterials Science, Utrecht University, 3584 CH Utrecht,
The Netherlands
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT),
University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp,
Belgium
| | - Ward van der Stam
- Condensed Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, P.O. Box 80000, 3508
TA Utrecht, The Netherlands
| | - Celso de Mello Donega
- Condensed Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, P.O. Box 80000, 3508
TA Utrecht, The Netherlands
- E-mail:
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8
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Xu C, Ravi Anusuyadevi P, Aymonier C, Luque R, Marre S. Nanostructured materials for photocatalysis. Chem Soc Rev 2019; 48:3868-3902. [DOI: 10.1039/c9cs00102f] [Citation(s) in RCA: 534] [Impact Index Per Article: 106.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photocatalysis is a green technology which converts abundantly available photonic energy into useful chemical energy.
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Affiliation(s)
- Chunping Xu
- School of Food and Biological Engineering
- Zhengzhou University of Light Industry
- Zhengzhou
- P. R. China
| | | | | | - Rafael Luque
- Departamento de Quimica Organica
- Universidad de Cordoba
- Campus de Rabanales
- Cordoba
- Spain
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9
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Liu Z, Liu J, Huang Y, Li J, Yuan Y, Ye H, Zhu D, Wang Z, Tang A. From one-dimensional to two-dimensional wurtzite CuGaS 2 nanocrystals: non-injection synthesis and photocatalytic evolution. NANOSCALE 2018; 11:158-169. [PMID: 30525146 DOI: 10.1039/c8nr07353h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Multinary copper-based chalcogenides exhibit significant performance in photocatalytic hydrogen evolution due to their suitable optical bandgap for visible light absorption and environmentally friendly character. Herein, high-quality wurtzite CuGaS2 (CGS) nanocrystals (NCs) were synthesized by using a one-step heating-up process without any injection, and the morphology could be tuned from one-dimensional (1D) to two-dimensional (2D) by precise choice of surface ligands and gallium precursors. The formation mechanism of CGS NCs was studied comprehensively by means of the temporal-evolution of the morphology, crystal structure and optical absorption results. The reaction started from djurleite Cu31S16 NCs, and then proceeded with the formation of Cu31S16-CGS heteronanostructures (HNS), and finally the transformation from HNS to monophasic CGS nanorods took place with prolonging of the synthesis time. The optical bandgap and the energy level of the different-dimensional CGS NCs exhibited a strong dependence on the morphology change, which correlated with the percentage of the exposed {001} and {100} facets. The theoretical calculation based on density functional theory (DFT) revealed that the (001) surface facilitated the charge transport rather than the (100) surface, which was consistent with the electrochemical impedance spectroscopy (EIS) results. As a result, the 2D CGS nanoplates with more exposed {001} facets exhibited an attractive photocatalytic hydrogen production activity under simulated solar illumination as compared to 1D and quasi-2D counterparts. This study demonstrates that control over the dimension of I-III-V group semiconductor NCs could lead to a significant improvement of the photocatalytic hydrogen evolution.
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Affiliation(s)
- Zheming Liu
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China.
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10
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I-III-VI chalcogenide semiconductor nanocrystals: Synthesis, properties, and applications. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63052-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Wang Y, Li X, Xu M, Wang K, Zhu H, Zhao W, Yan J, Zhang Z. Pressure induced photoluminescence modulation in a wide range and synthesis of monodispersed ternary AgCuS nanocrystal based on Ag 2S nanocrystals. NANOSCALE 2018; 10:2577-2587. [PMID: 29350235 DOI: 10.1039/c7nr08369f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Binary Ag2S nanocrystals (NCs) have many potential optical applications because of their low toxicity, narrow direct band gaps and near-infrared photoluminescence (PL) with high emission efficiency. However, due to its small exciton Bohr radius (2.2 nm), the PL spectra of Ag2S NCs can only be modulated below ∼1200 nm with increasing particle size. Meanwhile, ternary silver copper chalcogenides (AgCuX, X = S, Se) have also attracted increased attention in recent years. Temperature-dependent structural phase transformation leads electrical transport to exhibit fascinating transitions between p and n type conduction, which makes AgCuS and AgCuSe ideal materials for diode or transistor devices. Nevertheless, the traditional method to synthesize these materials is mainly through melting the mixture of Ag, Cu and S/Se powder under extremely high reaction temperatures (973-1373 K) and long reaction time, forming a bulk product. Therefore, the synthesis of high quality monodispersed and size-tunable AgCuS or AgCuSe NCs is still a challenge. To address these issues, in this paper, we report using Ag2S NCs as a template, a method to synthesize monodispersed and size-tunable β-AgCuS NCs via ion exchange and diffusion processes. Similarly, monodispersed β-AgCuSe NCs were also synthesized by this simple and reproducible strategy. This synthetic method opens new avenues for investigating the size-, morphology- and temperature-dependent phase transitions of these ternary AgCuS and AgCuSe materials. Thus, the corresponding electrical transport between p and n type conduction can be studied in the future. Furthermore, we systematically investigated the pressure-dependent PL properties and band gap modulation of monodispersed Ag2S NCs using in situ high pressure PL and absorption spectroscopy. We found that the PL peak of 6.0 nm for Ag2S NCs could be easily adjusted from ∼1200 to 1900 nm with increasing pressure from 0 to 5.1 GPa, which greatly extends the wavelength range of the PL peak beyond that of other approaches.
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Affiliation(s)
- Yingnan Wang
- School of Information Science and Technology, Northwest University, Xi'an, 710127, China.
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12
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Zhao M, Huang F, Lin H, Zhou J, Xu J, Wu Q, Wang Y. CuGaS 2-ZnS p-n nanoheterostructures: a promising visible light photo-catalyst for water-splitting hydrogen production. NANOSCALE 2016; 8:16670-16676. [PMID: 27714070 DOI: 10.1039/c6nr05002f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, novel CuGaS2-ZnS p-n type semiconductor nanoheterostructures were synthesized by a solution route, and demonstrated experimentally to be a very promising visible light active photo-catalyst for water-splitting hydrogen production. The construction of CuGaS2-ZnS heterostructures follows a multi-step strategy, employing Cu1.94S nanocrystals first as catalytic assistants for the hetero-growth of ZnS on their surfaces, and then as sacrificial seeds for the formation of CuGaS2. Excitingly, attributed to the efficient charge separation introduced by the p-n heterojunctions, the hydrogen production ability of the CuGaS2-ZnS nanoheterostructures under visible light irradiation is 15 times higher than that of the CuGaS2 component, and comparable to that of the CdS nanophase which is currently regarded as one of the most active visible photo-catalysts for hydrogen generation.
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Affiliation(s)
- Mingshi Zhao
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and College of Materials Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Feng Huang
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and Fujian Provincial Key Laboratory of Nanomaterials, Fuzhou, Fujian 350002, P. R. China
| | - Hang Lin
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and Fujian Provincial Key Laboratory of Nanomaterials, Fuzhou, Fujian 350002, P. R. China
| | - Jiangcong Zhou
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
| | - Ju Xu
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and Fujian Provincial Key Laboratory of Nanomaterials, Fuzhou, Fujian 350002, P. R. China
| | - Qingping Wu
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and Fujian Provincial Key Laboratory of Nanomaterials, Fuzhou, Fujian 350002, P. R. China
| | - Yuansheng Wang
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. and Fujian Provincial Key Laboratory of Nanomaterials, Fuzhou, Fujian 350002, P. R. China
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13
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Bai T, Xing S, Li C, Shi Z, Feng S. Phase-controlled synthesis of orthorhombic and tetragonal AgGaSe2 nanocrystals with high quality. Chem Commun (Camb) 2016; 52:8581-4. [DOI: 10.1039/c6cc04358e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Orthorhombic AgGaSe2 nanocrystals with high quality have been successfully synthesized for the first time, and their crystalline phase could be tuned by adjusting the reaction conditions.
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Affiliation(s)
- Tianyu Bai
- College of Medical Laboratory
- Dalian Medical University
- Dalian 116044
- P. R. China
| | - Shanghua Xing
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Chunguang Li
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Zhan Shi
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Shouhua Feng
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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14
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Xiao G, Yang X, Zhang X, Wang K, Huang X, Ding Z, Ma Y, Zou G, Zou B. A Protocol to Fabricate Nanostructured New Phase: B31-Type MnS Synthesized under High Pressure. J Am Chem Soc 2015; 137:10297-303. [DOI: 10.1021/jacs.5b05629] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guanjun Xiao
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Xinyi Yang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Xinxin Zhang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Kai Wang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Xiaoli Huang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Zhanhui Ding
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Yanming Ma
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Guangtian Zou
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Bo Zou
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
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15
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Zhou B, Xiao G, Yang X, Li Q, Wang K, Wang Y. Pressure-dependent optical behaviors of colloidal CdSe nanoplatelets. NANOSCALE 2015; 7:8835-8842. [PMID: 25910180 DOI: 10.1039/c4nr07589g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two-dimensional (2D) colloidal anisotropic CdSe nanoplatelets (NPLs) have attracted a great deal of attraction within recent years. Their strong thickness-dependent absorption and emission spectra exhibit significant differences from those of other shaped CdSe nanocrystals (NCs) due to a unique atomically flat morphology. Based on their dielectric confinement effect and the large confinement energy, the 2D CdSe NPLs exhibit the best characteristics of optical and electronic properties as compared to the other CdSe nanocrystallite ensembles. Here, we systematically investigate the in situ high-pressure photoluminescence (PL), absorption, and time-resolved PL spectroscopy of CdSe NPLs with different thicknesses. The pressure-dependent optical behaviors of these NPLs exhibit several remarkable differences compared with those of other shaped CdSe NCs such as a higher phase transition pressure, irreversible PL and absorption spectra after the release of pressure, a narrower tunable range of absorption and PL peak energies, and minor changes in the ranges of PL decay time with increasing pressure. These phenomena and results are attributed to their unique geometric shape and distinctive soft ligand bonding on the surface.
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Affiliation(s)
- Bo Zhou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012, P. R. China.
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16
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Cholula-Díaz JL, Wagner G, Friedrich D, Oeckler O, Krautscheid H. Synthesis of CuInS2 nanocrystals from a molecular complex – characterization of the orthorhombic domain structure. Dalton Trans 2015; 44:14227-34. [DOI: 10.1039/c5dt00419e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
HRTEM images and SAED patterns reveal the orthorhombic domain structure of CuInS2 nanoparticles.
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Affiliation(s)
| | - Gerald Wagner
- Institut für Mineralogie
- Kristallographie und Materialwissenschaft
- Universität Leipzig
- 04275 Leipzig
- Germany
| | - Dirk Friedrich
- Institut für Anorganische Chemie
- Universität Leipzig
- 04103 Leipzig
- Germany
| | - Oliver Oeckler
- Institut für Mineralogie
- Kristallographie und Materialwissenschaft
- Universität Leipzig
- 04275 Leipzig
- Germany
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17
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Liu Z, Hao Q, Tang R, Wang L, Tang K. Facile one-pot synthesis of polytypic CuGaS2 nanoplates. NANOSCALE RESEARCH LETTERS 2013; 8:524. [PMID: 24330546 PMCID: PMC4029446 DOI: 10.1186/1556-276x-8-524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 12/03/2013] [Indexed: 06/03/2023]
Abstract
CuGaS2 (CGS) nanoplates were successfully synthesized by one-pot thermolysis of a mixture solution of CuCl, GaCl3, and 1-dodecanethiol in noncoordinating solvent 1-octadecene. Their morphology, crystalline phase, and composition were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), powder X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), respectively. Crystalline structure analysis showed that the as-prepared CGS nanoplates were polytypic, in which the wurtzite phase was interfaced with zincblende domains. The growth process of CGS nanoplates was investigated. It was found that copper sulfide nanoplates were firstly formed and then the as-formed copper sulfide nanoplates gradually transformed to CGS nanoplates with proceeding of the reaction. The optical absorption of the as-synthesized CGS nanoplates was also measured and the direct optical bandgap was determined to be 2.24 eV.
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Affiliation(s)
- Zhongping Liu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale; Department of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Qiaoyan Hao
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale; Department of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Rui Tang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Jiading District, Shanghai 201800, People’s Republic of China
| | - Linlin Wang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale; Department of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Kaibin Tang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale; Department of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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18
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Regulacio MD, Ye C, Lim SH, Zheng Y, Xu QH, Han MY. Facile noninjection synthesis and photocatalytic properties of wurtzite-phase CuGaS2 nanocrystals with elongated morphologies. CrystEngComm 2013. [DOI: 10.1039/c3ce40352a] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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