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Wang L, Zhao S, Zhang X, Xu Y, An Y, Li C, Yi S, Liu C, Wang K, Sun X, Zhang H, Ma Y. In Situ Construction of Bimetallic Selenides Heterogeneous Interface on Oxidation-Stable Ti 3C 2T x MXene Toward Lithium Storage with Ultrafast Charge Transfer Kinetics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403078. [PMID: 39221641 DOI: 10.1002/smll.202403078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/09/2024] [Indexed: 09/04/2024]
Abstract
Ti3C2Tx (MXene) is widely acknowledged as an excellent substrate for constructing heterogeneous structures with transition metal chalcogenides (TMCs) for boosting the electrochemical performance of lithium-ion storage. However, conventional synthesis strategies inevitably lead to poor electrochemical charge transfer due to Ti3C2Tx-derived TiO2 at the heterogeneous interface between Ti3C2Tx and TMCs. Here, an innovative in situ selenization strategy is proposed to replace the originally generated TiO2 on Ti3C2Tx with metallic TiSe2 interphase, clearing the bottleneck of slow charge transfer barrier caused by MXene oxidation. The construction of bimetallic selenide formed by CoSe2 and TiSe2 generates intrinsic electric fields to guide the fast ion diffusion kinetics in a heterogeneous interface. Additionally, the CoSe2/TiSe2/Ti3C2Tx heterogeneous structure with enhanced structural stability and improved rate performance is confirmed by both experiments and theoretical calculations. The engineered heterogeneous structure exhibits an ultra-high pseudocapacitance contribution (73.1% at 0.1 mV s-1), rendering it well-suited to offset the kinetics differences between double-layer materials. The assembled lithium-ion capacitor based on CoSe2/TiSe2/Ti3C2Tx possesses a high energy density and an ultralong life span (89.5% after 10 000 times at 2 A g-1). This devised strategy provides a feasible solution for utilizing the performance advantages of MXene substrates in lithium storage with ultrafast charge transfer kinetics.
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Affiliation(s)
- Lei Wang
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- China North Vehicle Research Institute, Beijing, 100072, China
| | - Shasha Zhao
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiong Zhang
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Yanan Xu
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Yabin An
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Chen Li
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Sha Yi
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Cong Liu
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Wang
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Xianzhong Sun
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
| | - Haitao Zhang
- Institute of Smart City and Intelligent Transportation, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Yanwei Ma
- Key Laboratory of High Density Electromagnetic Power and Systems (Chinese Academy of Sciences), Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Shandong Key Laboratory of Advanced Electromagnetic Conversion Technology, Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan, Shandong, 250013, China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China
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Choi JW, Park DG, Kim KH, Choi WH, Park MG, Kang JK. 3D nitrogen-doped carbon frameworks with hierarchical pores and graphitic carbon channels for high-performance hybrid energy storages. MATERIALS HORIZONS 2024; 11:566-577. [PMID: 37987204 DOI: 10.1039/d3mh01473h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
In principle, hybrid energy storages can utilize the advantages of capacitor-type cathodes and battery-type anodes, but their cathode and anode materials still cannot realize a high energy density, fast rechargeable capability, and long-cycle stability. Herein, we report a strategy to synthesize cathode and anode materials as a solution to overcome this challenge. Firstly, 3D nitrogen-doped hierarchical porous graphitic carbon (NHPGC) frameworks were synthesized as cathode materials using Co-Zn mixed metal-organic frameworks (MOFs). A high capacity is achieved due to the abundant nitrogen and micropores produced by the MOF nanocages and evaporation of Zn. Also, fast ion/electron transport channels were derived through the Co-catalyzed hierarchical porosity control and graphitization. Moreover, tin oxide precursors were introduced in NHPGC to form the SnO2@NHPGC anode. Operando X-ray diffraction revealed that the rescaled subnanoparticles as anodic units facilitated the high capacity during ion insertion-induced rescaling. Besides, the Sn-N bonds endowed the anode with a cycling stability. Furthermore, the NHPGC cathode and SnO2@NHPGC achieved an ultrahigh energy density (up to 244.5 W h kg-1 for Li and 146.1 W h kg-1 for Na), fast rechargeable capability (up to 93C-rate for Li and 147C-rate for Na) as exhibited by photovoltaic recharge within a minute and a long-cycle stability with ∼100% coulombic efficiency over 10 000 cycles.
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Affiliation(s)
- Jae Won Choi
- Department of Materials Science and Engineering, NanoCentury Institute, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Dong Gyu Park
- Department of Materials Science and Engineering, NanoCentury Institute, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Keon-Han Kim
- Chemical Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Won Ho Choi
- Department of Petrochemical Materials, Chonnam National University, 50 Daehak-ro, Yeosu-si 59631, Republic of Korea
| | - Min Gyu Park
- Department of Materials Science and Engineering, NanoCentury Institute, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
- Advanced Cell Platform Group, Samsung SDI, 150-20 Gongse-ro, Giheung-gu, Yongin-Si, Gyeonggi-do, 17084, Republic of Korea
| | - Jeung Ku Kang
- Department of Materials Science and Engineering, NanoCentury Institute, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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Yang R, Zheng R, Song J, Liu H, Yu S, Liu J. Speciation of Selenium Nanoparticles and Other Selenium Species in Soil: Simple Extraction Followed by Membrane Separation and ICP-MS Determination. Anal Chem 2024; 96:471-479. [PMID: 38116615 DOI: 10.1021/acs.analchem.3c04577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The application of selenium nanoparticle (SeNP)-based fertilizers can cause SeNPs to enter the soil environment. Considering the possible transformation of SeNPs and the species-dependent toxicity of selenium (Se), accurate analysis of SeNPs and other Se species present in the soil would help rationally assess the potential hazards of SeNPs to soil organisms. Herein, a novel method for speciation of SeNPs and other Se species in soil was established. Under the optimized conditions, SeNPs, selenite, selenate, and seleno amino acid could be simultaneously extracted from the soil with mixtures of tetrasodium pyrophosphate (5 mM) and potassium dihydrogen phosphate (1.2 μM), while inert Se species (mainly metal selenide) remained in the soil. Then, extracted SeNPs can be effectively captured by a nylon membrane (0.45 μm) and quantified by inductively coupled plasma mass spectrometry (ICP-MS). Other extracted Se species can be separated and quantified by high-performance liquid chromatography coupled with ICP-MS. Based on the difference between the total Se contents and extracted Se contents, the amount of metal selenide can be calculated. The limits of detection of the method were 0.02 μg/g for SeNPs, 0.05 μg/g for selenite, selenate, and selenocystine, and 0.25 μg/g for selenomethionine, respectively. Spiking experiments also showed that our method was applicable to real soil sample analysis. The present method contributes to understanding the speciation of Se in the soil environment and further estimating the occurrence and application risks of SeNPs.
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Affiliation(s)
- Rui Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ronggang Zheng
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiangyun Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Hao Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sujuan Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingfu Liu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
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Wang F, Han Y, Xu R, Li A, Feng X, Lv S, Wang T, Song L, Li J, Wei Z. Establishing Transition Metal Phosphides as Effective Sulfur Hosts in Lithium-Sulfur Batteries through the Triple Effect of "Confinement-Adsorption-Catalysis". SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303599. [PMID: 37330660 DOI: 10.1002/smll.202303599] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/08/2023] [Indexed: 06/19/2023]
Abstract
Structurally optimized transition metal phosphides are identified as a promising avenue for the commercialization of lithium-sulfur (Li-S) batteries. In this study, a CoP nanoparticle-doped hollow ordered mesoporous carbon sphere (CoP-OMCS) is developed as a S host with a "Confinement-Adsorption-Catalysis" triple effect for Li-S batteries. The Li-S batteries with CoP-OMCS/S cathode demonstrate excellent performance, delivering a discharge capacity of 1148 mAh g-1 at 0.5 C and good cycling stability with a low long-cycle capacity decay rate of 0.059% per cycle. Even at a high current density of 2 C after 200 cycles, a high specific discharge capacity of 524 mAh g-1 is maintained. Moreover, a reversible areal capacity of 6.56 mAh cm-2 is achieved after 100 cycles at 0.2 C, despite a high S loading of 6.8 mg cm-2 . Density functional theory (DFT) calculations show that CoP exhibits enhanced adsorption capacity for sulfur-containing substances. Additionally, the optimized electronic structure of CoP significantly reduces the energy barrier during the conversion of Li2 S4 (L) to Li2 S2 (S). In summary, this work provides a promising approach to optimize transition metal phosphide materials structurally and design cathodes for Li-S batteries.
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Affiliation(s)
- Fangzheng Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Yuying Han
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Rui Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Ang Li
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Xin Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Shengyao Lv
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Tao Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - LeLe Song
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Jing Li
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
| | - Zidong Wei
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing, 401331, P. R. China
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Green AJ, Driscoll EH, Lakhdar Y, Kendrick E, Slater PR. Structural and electrochemical insights into novel Wadsley Roth Nb 7Ti 1.5Mo 1.5O 25 and Ta 7Ti 1.5Mo 1.5O 25 anodes for Li-ion battery application. Dalton Trans 2023; 52:13110-13118. [PMID: 37675851 DOI: 10.1039/d3dt02144k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Niobium based anodes are gaining increasing popularity for application in high-power lithium-ion batteries, due to their high theoretical capacities, inherent safety at high current densities, and long-term stability. Here, we report the discovery and characterisation of a new Wadsley Roth niobate system, Nb7Ti1.5Mo1.5O25, showing that it is isostructural with known systems: Nb9PO25 and Nb9VO25. To evaluate the material's electrochemical performance, including performance at high current densities (for potential high power applications), and long-term stability, Li half-coin cells were prepared. The material showed an initial capacity of 268(9) mA h g-1 at 0.01 A g-1 (voltage range of 2.5-1.0 V). However, in subsequent cycles, some of this initial capacity is lost, which is attributed to Li trapping associated with the presence of reducible MoO4 units, similar to the situation observed for isostructural Nb9VO25. After this initial irreversible capacity loss, the material showed good performance at high current density rates, such that at 2 A g-1 and 4 A g-1 respective capacities of 132(10) mA h g-1 and 115(14) mA g-1 were delivered. Moreover, the material showed respectable capacity retention (97%) after being cycled for 100 cycles at 0.2 A g-1. In order to identify the different Nb, Ti, Mo redox couples involved in this system, a Ta analogue was also synthesized (Ta7Ti1.5Mo1.5O25) and the electrochemical performance for this phase is also reported. This phase shows a lower initial capacity at 0.01 A g-1 (140(3) mA h g-1) than the Nb analogue in the same voltage range, which can be increased (225 mA h g-1) if a lower cutoff voltage (0.5 V) is applied. The capacity retention for this Ta system after 100 cycles at 0.2 A g-1 is similar to the Nb analogue (97%). Further work has explored whether the Nb-Ti-Mo contents could be varied, and these results showed that single phase Nb10-2xTixMoxO25 samples could be prepared for 1.5 ≤ x ≤ 1.75, and electrochemical testing results for the x = 1.75 endmember are also reported. Overall, this research highlights the synthesis and electrochemical characterisation of two new Wadsley Roth phases, and further highlights the challenges associated with the presence of reducible cations in tetrahedral sites in such structures with respect to minimising initial irreversible capacity loss.
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Affiliation(s)
- A J Green
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - E H Driscoll
- School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham, B15 2SE, UK
| | - Y Lakhdar
- School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham, B15 2SE, UK
| | - E Kendrick
- School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham, B15 2SE, UK
| | - P R Slater
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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Liu KK, Guan ZJ, Ke M, Fang Y. Bridging the Gap between Charge Storage Site and Transportation Pathway in Molecular-Cage-Based Flexible Electrodes. ACS CENTRAL SCIENCE 2023; 9:805-815. [PMID: 37122452 PMCID: PMC10141610 DOI: 10.1021/acscentsci.3c00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Indexed: 05/03/2023]
Abstract
Porous materials have been widely applied for supercapacitors; however, the relationship between the electrochemical behaviors and the spatial structures has rarely been discussed before. Herein, we report a series of porous coordination cage (PCC) flexible supercapacitors with tunable three-dimensional (3D) cavities and redox centers. PCCs exhibit excellent capacitor performances with a superior molecular capacitance of 2510 F mmol-1, high areal capacitances of 250 mF cm-2, and unique cycle stability. The electrochemical behavior of PCCs is dictated by the size, type, and open-close state of the cavities. Both the charge binding site and the charge transportation pathway are unambiguously elucidated for PCC supercapacitors. These findings provide central theoretical support for the "structure-property relationship" for designing powerful electrode materials for flexible energy storage devices.
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Affiliation(s)
- Kang-Kai Liu
- State
Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of
Chemistry and Chemical Engineering, Hunan
University, Changsha, Hunan 410082, People’s Republic of China
| | - Zong-Jie Guan
- State
Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of
Chemistry and Chemical Engineering, Hunan
University, Changsha, Hunan 410082, People’s Republic of China
| | - Mengting Ke
- State
Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of
Chemistry and Chemical Engineering, Hunan
University, Changsha, Hunan 410082, People’s Republic of China
| | - Yu Fang
- State
Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of
Chemistry and Chemical Engineering, Hunan
University, Changsha, Hunan 410082, People’s Republic of China
- Innovation
Institute of Industrial Design and Machine Intelligence Quanzhou-Hunan
University, Quanzhou, Fujian 362801, People’s Republic of China
- Email
for Y.F.:
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