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Huang C, Yu J, Zhang CY, Cui Z, Chen J, Lai WH, Lei YJ, Nan B, Lu X, He R, Gong L, Li J, Li C, Qi X, Xue Q, Zhou JY, Qi X, Balcells L, Arbiol J, Cabot A. Electronic Spin Alignment within Homologous NiS 2/NiSe 2 Heterostructures to Promote Sulfur Redox Kinetics in Lithium-Sulfur Batteries. Adv Mater 2024:e2400810. [PMID: 38569213 DOI: 10.1002/adma.202400810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/08/2024] [Indexed: 04/05/2024]
Abstract
The catalytic activation of the Li-S reaction is fundamental to maximize the capacity and stability of Li-S batteries (LSBs). Current research on Li-S catalysts mainly focuses on optimizing the energy levels to promote adsorption and catalytic conversion, while frequently overlooking the electronic spin state influence on charge transfer and orbital interactions. Here, hollow NiS2/NiSe2 heterostructures encapsulated in a nitrogen-doped carbon matrix (NiS2/NiSe2@NC) are synthesized and used as a catalytic additive in sulfur cathodes. The NiS2/NiSe2 heterostructure promotes the spin splitting of the 3d orbital, driving the Ni3+ transformation from low to high spin. This high spin configuration raises the electronic energy level and activates the electronic state. This accelerates the charge transfer and optimizes the adsorption energy, lowering the reaction energy barrier of the polysulfides conversion. Benefiting from these characteristics, LSBs based on NiS2/NiSe2@NC/S cathodes exhibit high initial capacity (1458 mAh·g⁻1 at 0.1C), excellent rate capability (572 mAh·g⁻1 at 5C), and stable cycling with an average capacity decay rate of only 0.025% per cycle at 1C during 500 cycles. Even at high sulfur loadings (6.2 mg·cm⁻2), high initial capacities of 1173 mAh·g⁻1 (7.27 mAh·cm⁻2) are measured at 0.1C, and 1058 mAh·g⁻1 is retained after 300 cycles.
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Affiliation(s)
- Chen Huang
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Chemistry, University of Barcelona, Barcelona, 08028, Spain
| | - Jing Yu
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, 08193, Spain
| | - Chao Yue Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology, Lanzhou University, Lanzhou, 730000, China
| | - Zhibiao Cui
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Jiakun Chen
- Analysis and Testing Center, South China Normal University, Guangzhou, 510006, China
| | - Wei-Hong Lai
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, Innovation Campus, University of Wollongong, Wollongong, NSW, 2500, Australia
| | - Yao-Jie Lei
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, Innovation Campus, University of Wollongong, Wollongong, NSW, 2500, Australia
| | - Bingfei Nan
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Xuan Lu
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Ren He
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Li Gong
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Chemistry, University of Barcelona, Barcelona, 08028, Spain
| | - Junshan Li
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
| | - Canhuang Li
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Chemistry, University of Barcelona, Barcelona, 08028, Spain
| | - Xuede Qi
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Qian Xue
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jin Yuan Zhou
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology, Lanzhou University, Lanzhou, 730000, China
| | - Xueqiang Qi
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Lluís Balcells
- Institut de Ciència de Materials de Barcelona, Campus de la UAB, Bellaterra, Catalonia, 08193, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, 08193, Spain
- ICREA Pg. Lluis Companys, Barcelona, Catalonia, 08010, Spain
| | - Andreu Cabot
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- ICREA Pg. Lluis Companys, Barcelona, Catalonia, 08010, Spain
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Khaladkar SR, Maurya O, Gund G, Sinha B, Dubal D, Deshmukh R, Kalekar A. Extrinsic Pseudocapacitive NiSe/rGO/g-C 3N 4 Nanocomposite for High-Performance Hybrid Supercapacitors. ACS Appl Mater Interfaces 2024; 16:11408-11420. [PMID: 38410916 DOI: 10.1021/acsami.3c16010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Battery-type materials with ultrahigh energy density show great potential for hybrid supercapacitors (HSCs). In this work, we have developed a nickel selenide (NiSe)/reduced graphene oxide (rGO)/graphitic carbon nitride (g-C3N4) ternary composite as a promising positive electrode for hybrid supercapacitors (HSCs). The extended π-conjugated planar layers of g-C3N4 promote strong interconnectivity with rGO, which further enhances surface area, surface free energy, and efficient electron/ionic path. Additionally, it establishes clear ion diffusion pathways, serving as ion reservoirs during charge and discharge and facilitating efficient redox reactions. As a result, the NiSe/g-C3N4/rGO nanocomposite electrode displayed a specific capacity of 412.6 mA h g-1 at 1 A g-1. Later, the HSC device was assembled using the nanocomposite as the positive electrode and activated carbon as the negative electrode, which delivered an energy density of 65.2 Wh kg-1 at a power density of 750 W kg-1. Notably, the HSC device maintained excellent cyclic stability, preserving 93.3% of its initial performance and Coulombic efficiency of 86.6% for 10,000 charge-discharge cycles at 5 A g-1. These findings underscore the potential utility of NiSe/g-C3N4/rGO as a versatile and effective electrode material for the strategic development of HSC devices.
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Affiliation(s)
- Somnath R Khaladkar
- Department of Physics, Institute of Chemical Technology (ICT), Matunga, Mumbai, Maharashtra 400019, India
| | - Oshnik Maurya
- Department of Physics, Institute of Chemical Technology (ICT), Matunga, Mumbai, Maharashtra 400019, India
| | - Girish Gund
- Department of Physics, Mahatma Phule Arts, Science and Commerce College, Panvel, Mumbai, Maharashtra 410206, India
| | - Bhavesh Sinha
- National Center for Nanoscience and Nanotechnology, University of Mumbai, Mumbai, Maharashtra 400032, India
| | - Deepak Dubal
- Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Rajendra Deshmukh
- Department of Physics, Institute of Chemical Technology (ICT), Matunga, Mumbai, Maharashtra 400019, India
| | - Archana Kalekar
- Department of Physics, Institute of Chemical Technology (ICT), Matunga, Mumbai, Maharashtra 400019, India
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3
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Feng Y, He X, Cheng M, Zhu Y, Wang W, Zhang Y, Zhang H, Zhang G. Selective Adsorption Behavior Modulation on Nickel Selenide by Heteroatom Implantation and Heterointerface Construction Achieves Efficient Co-production of H 2 and Formate. Small 2023; 19:e2301986. [PMID: 37096917 DOI: 10.1002/smll.202301986] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/24/2023] [Indexed: 05/03/2023]
Abstract
Glycerol-assisted hybrid water electrolysis is a potential strategy to achieve energy-efficient hydrogen production. However, the design of an efficient catalyst for the specific reaction is still a key challenge, which suffers from the barrier of regulating the adsorption characteristics of distinctive intermediates in different reactions. Herein, a novel rationale that achieves selective adsorption behavior modulation for self-supported nickel selenide electrode by heteroatom implantation and heterointerface construction through electrodeposition is developed, which can realize nichetargeting optimization on hydrogen evolution reaction (HER) and glycerol oxidation reaction (GOR), respectively. Specifically, the prepared Mo-doped Ni3 Se2 electrode exhibits superior catalytic activity for HER, while the NiSe-Ni3 Se2 electrode exhibits high Faradaic efficiency (FE) towards formate production for GOR. A two-electrode electrolyzer exhibits superb activity that only needs an ultralow cell voltage of 1.40 V to achieve 40 mA cm-2 with a high FE (97%) for formate production. Theoretical calculation unravels that the introduction of molybdenum contributes to the deviation of the d-band center of Ni3 Se2 from the Fermi level, which is conducive to hydrogen desorption. Meanwhile, the construction of the heterojunction induces the distortion of the surface structure of nickel selenide, which exposes highly active nickel sites for glycerol adsorption, thus contributing to the excellent electrocatalytic performance.
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Affiliation(s)
- Yafei Feng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiaoyue He
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Mingyu Cheng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yin Zhu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wentao Wang
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Education University, Guiyang, 550018, China
| | - Yangyang Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Huaikun Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Genqiang Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
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Li J, Li L, Ma X, Han X, Xing C, Qi X, He R, Arbiol J, Pan H, Zhao J, Deng J, Zhang Y, Yang Y, Cabot A. Selective Ethylene Glycol Oxidation to Formate on Nickel Selenide with Simultaneous Evolution of Hydrogen. Adv Sci (Weinh) 2023; 10:e2300841. [PMID: 36950758 DOI: 10.1002/advs.202300841] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/21/2023] [Indexed: 05/27/2023]
Abstract
There is an urgent need for cost-effective strategies to produce hydrogen from renewable net-zero carbon sources using renewable energies. In this context, the electrochemical hydrogen evolution reaction can be boosted by replacing the oxygen evolution reaction with the oxidation of small organic molecules, such as ethylene glycol (EG). EG is a particularly interesting organic liquid with two hydroxyl groups that can be transformed into a variety of C1 and C2 chemicals, depending on the catalyst and reaction conditions. Here, a catalyst is demonstrated for the selective EG oxidation reaction (EGOR) to formate on nickel selenide. The catalyst nanoparticle (NP) morphology and crystallographic phase are tuned to maximize its performance. The optimized NiS electrocatalyst requires just 1.395 V to drive a current density of 50 mA cm-2 in 1 m potassium hydroxide (KOH) and 1 m EG. A combination of in situ electrochemical infrared absorption spectroscopy (IRAS) to monitor the electrocatalytic process and ex situ analysis of the electrolyte composition shows the main EGOR product is formate, with a Faradaic efficiency above 80%. Additionally, C2 chemicals such as glycolate and oxalate are detected and quantified as minor products. Density functional theory (DFT) calculations of the reaction process show the glycol-to-oxalate pathway to be favored via the glycolate formation, where the CC bond is broken and further electro-oxidized to formate.
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Affiliation(s)
- Junshan Li
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
| | - Luming Li
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China
| | - Xingyu Ma
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, 610041, China
| | - Xu Han
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, 08193, Spain
| | - Congcong Xing
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
| | - Xueqiang Qi
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
| | - Ren He
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, 08193, Spain
- ICREA, Pg. Lluís Companys 23, Barcelona, Catalonia, 08910, Spain
| | - Huiyan Pan
- School of Biological and Chemical Engineering, Nanyang Institute of Science and Technology, Nanyang, 473004, China
| | - Jun Zhao
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Jie Deng
- College of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China
| | - Yu Zhang
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Yaoyue Yang
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, 610041, China
| | - Andreu Cabot
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
- ICREA, Pg. Lluís Companys 23, Barcelona, Catalonia, 08910, Spain
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5
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Achimovičová M, Hegedüs M, Girman V, Lisnichuk M, Dutková E, Kurimský J, Briančin J. Mechanochemical Synthesis of Nickel Mono- and Diselenide: Characterization and Electrical and Optical Properties. Nanomaterials (Basel) 2022; 12:2952. [PMID: 36079987 PMCID: PMC9457779 DOI: 10.3390/nano12172952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Nickel mono- (NiSe) and diselenide (NiSe2) were produced from stoichiometric mixtures of powdered Ni and Se precursors by the one-step, undemanding mechanochemical reactions. The process was carried out by high-energy milling for 30 and 120 min in a planetary ball mill. The kinetics of the reactions were documented, and the products were studied in terms of their crystal structure, morphology, electrical, and optical properties. X-ray powder diffraction confirmed that NiSe has hexagonal and NiSe2 cubic crystal structure with an average crystallite size of 10.5 nm for NiSe and 13.3 nm for NiSe2. Their physical properties were characterized by the specific surface area measurements and particle size distribution analysis. Transmission electron microscopy showed that the prepared materials contain nanoparticles of irregular shape, which are agglomerated into clusters of about 1-2 μm in diameter. The first original values of electrical conductivity, resistivity, and sheet resistance of nickel selenides synthesized by milling were measured. The obtained bandgap energy values determined using UV-Vis spectroscopy confirmed their potential use in photovoltaics. Photoluminescence spectroscopy revealed weak luminescence activity of the materials. Such synthesis of nickel selenides can easily be carried out on a large scale by milling in an industrial mill, as was verified earlier for copper selenide synthesis.
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Affiliation(s)
| | | | - Vladimír Girman
- Faculty of Science, Pavol Jozef Šafárik University, 04154 Košice, Slovakia
- Institute of Materials Research, Slovak Academy of Sciences, 04001 Košice, Slovakia
| | - Maksym Lisnichuk
- Faculty of Science, Pavol Jozef Šafárik University, 04154 Košice, Slovakia
- Institute of Materials Research, Slovak Academy of Sciences, 04001 Košice, Slovakia
| | - Erika Dutková
- Institute of Geotechnics, Slovak Academy of Sciences, 04001 Košice, Slovakia
| | - Juraj Kurimský
- Faculty of Electrical Engineering and Informatics, Technical University, 04200 Košice, Slovakia
| | - Jaroslav Briančin
- Institute of Geotechnics, Slovak Academy of Sciences, 04001 Košice, Slovakia
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Chang J, Wang G, Yang Z, Li B, Wang Q, Kuliiev R, Orlovskaya N, Gu M, Du Y, Wang G, Yang Y. Dual-Doping and Synergism toward High-Performance Seawater Electrolysis. Adv Mater 2021; 33:e2101425. [PMID: 34235791 DOI: 10.1002/adma.202101425] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/18/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen (H2 ) production from direct seawater electrolysis is an economically appealing yet fundamentally and technically challenging approach to harvest clean energy. The current seawater electrolysis technology is significantly hindered by the poor stability and low selectivity of the oxygen evolution reaction (OER) due to the competition with chlorine evolution reaction in practical application. Herein, iron and phosphor dual-doped nickel selenide nanoporous films (Fe,P-NiSe2 NFs) are rationally designed as bifunctional catalysts for high-efficiency direct seawater electrolysis. The doping of Fe cation increases the selectivity and Faraday efficiency (FE) of the OER. While the doping of P anions improves the electronic conductivity and prevents the dissolution of selenide by forming a passivation layer containing P-O species. The Fe-dopant is identified as the primary active site for the hydrogen evolution reaction, and meanwhile, stimulates the adjacent Ni atoms as active centers for the OER. The experimental analyses and theoretical calculations provide an insightful understanding of the roles of dual-dopants in boosting seawater electrolysis. As a result, a current density of 0.8 A cm-2 is archived at 1.8 V with high OER selectivity and long-term stability for over 200 h, which surpasses the benchmarking platinum-group-metals-free electrolyzers.
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Affiliation(s)
- Jinfa Chang
- NanoScience Technology Center, Department of Materials Science and Engineering, Department of Chemistry, Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL, 32826, USA
| | - Guanzhi Wang
- NanoScience Technology Center, Department of Materials Science and Engineering, Department of Chemistry, Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL, 32826, USA
| | - Zhenzhong Yang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Boyang Li
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Qi Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ruslan Kuliiev
- Department of Mechanical and Aerospace Engineering, Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL, 32816, USA
| | - Nina Orlovskaya
- Department of Mechanical and Aerospace Engineering, Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL, 32816, USA
| | - Meng Gu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yingge Du
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Guofeng Wang
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Yang Yang
- NanoScience Technology Center, Department of Materials Science and Engineering, Department of Chemistry, Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL, 32826, USA
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Unoki K, Yoshiasa A, Kitahara G, Nishiayama T, Tokuda M, Sugiyama K, Nakatsuka A. Crystal structure refinements of stoichiometric Ni 3Se 2 and NiSe. Acta Crystallogr C 2021; 77:169-175. [PMID: 33818438 DOI: 10.1107/s2053229621002187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/24/2021] [Indexed: 11/10/2022] Open
Abstract
Single crystals of Ni3Se2 (trinickel diselenide) and NiSe (nickel selenide) with stoichiometric chemical compositions were grown in evacuated silica-glass tubes. The chemical compositions of the single crystals of Ni3Se2 and NiSe were determined by scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDS). The crystal structures of Ni3Se2 [rhombohedral, space group R32, a = 6.02813 (13), c = 7.24883 (16) Å, Z = 3] and NiSe [hexagonal, space group P63/mmc, a = 3.66147 (10), c = 5.35766 (16) Å, Z = 2] were analyzed by single-crystal X-ray diffraction and refined to yield R values of 0.020 and 0.018 for 117 and 85 unique reflections, respectively, with Fo > 4σ(Fo). R32 is a Sohncke type of space group where enantiomeric structures can exist; the single-domain structure obtained by the refinement was confirmed to be correct by a Flack parameter of -0.05 (2). The existence of Ni-Ni bonds was confirmed in both compounds, in addition to the Ni-Se bonds. The value of the atomic displacement parameter (mean-square displacement) of each atom in NiSe was larger than that in Ni3Se2. The larger amplitude of the atoms in NiSe corresponds to longer Ni-Se and Ni-Ni bond lengths in NiSe than in Ni3Se2. The Debye temperatures, θD, estimated from observed mean-square displacements for Ni and Se in Ni3Se2, were 322 and 298 K, respectively, while those for Ni and Se in NiSe were 246 and 241 K, respectively. The existence of large cavities in the structure and the weak bonding force are likely responsible for the brittle and soft nature of the NiSe crystal.
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Affiliation(s)
- Kohei Unoki
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Kumamoto 860-8555, Japan
| | - Akira Yoshiasa
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Kumamoto 860-8555, Japan
| | - Ginga Kitahara
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Kumamoto 860-8555, Japan
| | - Tadao Nishiayama
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Kumamoto 860-8555, Japan
| | - Makoto Tokuda
- Institute for Materials Reserch, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Kazumasa Sugiyama
- Institute for Materials Reserch, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Akihiko Nakatsuka
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube, Yamaguchi 755-8611, Japan
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Shi X, Key J, Ji S, Linkov V, Liu F, Wang H, Gai H, Wang R. Ni(OH) 2 Nanoflakes Supported on 3D Ni 3 Se 2 Nanowire Array as Highly Efficient Electrodes for Asymmetric Supercapacitor and Ni/MH Battery. Small 2019; 15:e1802861. [PMID: 30474305 DOI: 10.1002/smll.201802861] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 11/02/2018] [Indexed: 06/09/2023]
Abstract
Porous Ni(OH)2 nanoflakes are directly grown on the surface of nickel foam supported Ni3 Se2 nanowire arrays using an in situ growth procedure to form 3D Ni3 Se2 @Ni(OH)2 hybrid material. Owing to good conductivity of Ni3 Se2 , high specific capacitance of Ni(OH)2 and its unique architecture, the obtained Ni3 Se2 @Ni(OH)2 exhibits a high specific capacitance of 1689 µAh cm-2 (281.5 mAh g-1 ) at a discharge current of 3 mA cm-2 and a superior rate capability. Both the high energy density of 59.47 Wh kg-1 at a power density of 100.54 W kg-1 and remarkable cycling stability with only a 16.4% capacity loss after 10 000 cycles are demonstrated in an asymmetric supercapacitor cell comprising Ni3 Se2 @Ni(OH)2 as a positive electrode and activated carbon as a negative electrode. Furthermore, the cell achieved a high energy density of 50.9 Wh L-1 at a power density of 83.62 W L-1 in combination with an extraordinary coulombic efficiency of 97% and an energy efficiency of 88.36% at 5 mA cm-2 when activated carbon is replaced by metal hydride from a commercial NiMH battery. Excellent electrochemical performance indicates that Ni3 Se2 @Ni(OH)2 composite can become a promising electrode material for energy storage applications.
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Affiliation(s)
- Xin Shi
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Julian Key
- College of Biological, Chemical Science and Chemical Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Shan Ji
- College of Biological, Chemical Science and Chemical Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Vladimir Linkov
- South African Institute for Advanced Materials Chemistry, University of the Western Cape, Cape Town, 7535, South Africa
| | - Fusheng Liu
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Hui Wang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Hengjun Gai
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Rongfang Wang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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Lee S, Cha S, Myung Y, Park K, Kwak IH, Kwon IS, Seo J, Lim SA, Cha EH, Park J. Orthorhombic NiSe 2 Nanocrystals on Si Nanowires for Efficient Photoelectrochemical Water Splitting. ACS Appl Mater Interfaces 2018; 10:33198-33204. [PMID: 30188679 DOI: 10.1021/acsami.8b10425] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Photocatalytic water splitting is a vital technology for clean renewable energy. Despite enormous progress, the search for earth-abundant photocatalysts with long-term stability and high catalytic activity is still an important issue. We report three possible polymorphs of nickel selenide (orthorhombic phase NiSe2, cubic phase NiSe2, and hexagonal phase NiSe) as bifunctional catalysts for water-splitting photoelectrochemical (PEC) cells. Photocathodes or photoanodes were fabricated by depositing the nickel selenide nanocrystals (NCs) onto p- or n-type Si nanowire arrays. Detailed structural analysis reveals that compared to the other two types, the orthorhombic NiSe2 NCs are more metallic and form less surface oxides. As a result, the orthorhombic NiSe2 NCs significantly enhanced the performance of water-splitting PEC cells by increasing the photocurrents and shifting the onset potentials. The high photocurrent is ascribed to the excellent catalytic activity toward water splitting, resulting in a low charge-transfer resistance. The onset potential shift can be determined by the shift of the flat-band potential. A large band bending occurs at the electrolyte interface, so that photoelectrons or photoholes are efficiently generated to accelerate the photocatalytic reaction at the active sites of orthorhombic NiSe2. The remarkable bifunctional photocatalytic activity of orthorhombic NiSe2 promises efficient PEC water splitting.
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Affiliation(s)
- Suyoung Lee
- Department of Pharmaceutical Engineering , Hoseo University , Asan 336-795 , Republic of Korea
| | - Seunghwan Cha
- Department of Pharmaceutical Engineering , Hoseo University , Asan 336-795 , Republic of Korea
| | - Yoon Myung
- Department of Nanotechnology and Advanced Engineering , Sejong University , Seoul 05006 , Republic of Korea
| | - Kidong Park
- Department of Chemistry , Korea University , Sejong 339-700 , Republic of Korea
| | - In Hye Kwak
- Department of Chemistry , Korea University , Sejong 339-700 , Republic of Korea
| | - Ik Seon Kwon
- Department of Chemistry , Korea University , Sejong 339-700 , Republic of Korea
| | - Jaemin Seo
- Department of Chemistry , Korea University , Sejong 339-700 , Republic of Korea
| | - Soo A Lim
- Department of Pharmaceutical Engineering , Hoseo University , Asan 336-795 , Republic of Korea
| | - Eun Hee Cha
- Department of Pharmaceutical Engineering , Hoseo University , Asan 336-795 , Republic of Korea
| | - Jeunghee Park
- Department of Chemistry , Korea University , Sejong 339-700 , Republic of Korea
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10
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Peng H, Wei C, Wang K, Meng T, Ma G, Lei Z, Gong X. Ni 0.85Se@MoSe 2 Nanosheet Arrays as the Electrode for High-Performance Supercapacitors. ACS Appl Mater Interfaces 2017; 9:17067-17075. [PMID: 28485575 DOI: 10.1021/acsami.7b02776] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In this study, we report novel Ni0.85Se@MoSe2 nanosheet arrays prepared by a facile one-step hydrothermal method through nickel (Ni) foam as Ni precursor and the framework of MoSe2. Owing to the unique interconnection and hierarchical porous nanosheet array architecture, the Ni0.85Se@MoSe2 nanosheet arrays exhibit a high specific capacitance of 774 F g-1 at the current density of 1 A g-1, which is almost 2 times higher than that (401 F g-1) of the Ni0.85Se matrix and about 7 times greater than that (113 F g-1) of the MoSe2 nanoparticles. Moreover, we report an asymmetric supercapacitor (ASC), which is fabricated by using the Ni0.85Se@MoSe2 nanosheet arrays as the positive electrode and the graphene nanosheets (GNS) as the negative electrode, with aqueous KOH as the electrolyte. The Ni0.85Se@MoSe2//GNS ASC possesses an output voltage of 1.6 V, an energy density of 25.5 Wh kg-1 at a power density of 420 W kg-1, and a cycling stability of 88% capacitance retention after 5000 cycles. These results indicate that the Ni0.85Se@MoSe2 nanosheet arrays are a good electrode for supercapacitors.
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Affiliation(s)
- Hui Peng
- Department of Polymer Engineering, College of Polymer Science and Polymer Engineering, The University of Akron , Akron, Ohio 44325, United States
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, P. R. China
| | - Chunding Wei
- Department of Polymer Engineering, College of Polymer Science and Polymer Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Kai Wang
- Department of Polymer Engineering, College of Polymer Science and Polymer Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Tianyu Meng
- Department of Polymer Engineering, College of Polymer Science and Polymer Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Guofu Ma
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, P. R. China
| | - Ziqiang Lei
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, P. R. China
| | - Xiong Gong
- Department of Polymer Engineering, College of Polymer Science and Polymer Engineering, The University of Akron , Akron, Ohio 44325, United States
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11
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Bao C, Li F, Wang J, Sun P, Huang N, Sun Y, Fang L, Wang L, Sun X. One-Pot Solvothermal in Situ Growth of 1D Single-Crystalline NiSe on Ni Foil as Efficient and Stable Transparent Conductive Oxide Free Counter Electrodes for Dye-Sensitized Solar Cells. ACS Appl Mater Interfaces 2016; 8:32788-32796. [PMID: 27934175 DOI: 10.1021/acsami.6b10198] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
One-dimensional single-crystal nanostructural nickel selenides were successfully in situ grown on metal nickel foils by two simple one-step solvothermal methods, which formed NiSe/Ni counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The nickel foil acted as the nickel source in the reaction process, a supporting substrate, and an electron transport "speedway". Electrochemical testing indicated that the top 1D single-crystal NiSe exhibited prominent electrocatalytic activity for I3- reduction. Due to the metallic conductivity of Ni substrate and the outstanding electrocatalytic activity of single-crystal NiSe, the DSSC based on a NiSe/Ni CE exhibited higher fill factor (FF) and larger short-circuit current density (Jsc) than the DSSC based on Pt/FTO CE. The corresponding power conversion efficiency (6.75%) outperformed that of the latter (6.18%). Moreover, the NiSe/Ni CEs also showed excellent electrochemical stability in the I-/I3- redox electrolyte. These findings indicated that single-crystal NiSe in situ grown on Ni substrate was a potential candidate to replace Pt/TCO as a cheap and highly efficient counter electrode of DSSC.
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Affiliation(s)
- Chao Bao
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
| | - Faxin Li
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
| | - Jiali Wang
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
| | - Panpan Sun
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
| | - Niu Huang
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
| | - Yihua Sun
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
| | - Liang Fang
- GuangXi Key Laboratory of New Energy and Building Energy Saving, Guilin University of Technology , Guilin 541004, China
| | - Lei Wang
- GuangXi Key Laboratory of New Energy and Building Energy Saving, Guilin University of Technology , Guilin 541004, China
| | - Xiaohua Sun
- College of Materials and Chemical Engineering, College of Mechanical and Power Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University , Yichang 443002, China
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