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Zhou Y, Wu Y, Guo D, Li J, Li Y, Yang X, Fu S, Sui G, Chai DF. Novel Strain Engineering Combined with a Microscopic Pore Synergistic Modulated Strategy for Designing Lattice Tensile-Strained Porous V 2C-MXene for High-Performance Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15797-15809. [PMID: 36930051 DOI: 10.1021/acsami.2c19729] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Transition metal carbon/nitride (MXene) holds immense potential as an innovative electrocatalyst for enhancing the overall water splitting properties. Nevertheless, the re-stacking nature induced by van der Waals force remains a significant challenge. In this work, the lattice tensile-strained porous V2C-MXene (named as TS(24)-P(50)-V2C) is successfully constructed via the rapid spray freezing method and the following hydrothermal treatment. Besides, the influence of lattice strain degree and microscopic pores on the catalytic ability is reviewed and explored systematically. The lattice tensile strain within V2C-MXene could widen the interlayer spacing and accelerate the ion transfer. The microscopic pores could change the ion transmission path and shorten the migration distance. As a consequence, the obtained TS(24)-P(50)-V2C shows extraordinary hydrogen evolution reaction and oxygen evolution reaction activity with the overpotential of 154 and 269 mV, respectively, at the current density of 10 mA/cm2, which is quite remarkable compared to the MXene-based electrocatalysts. Moreover, the overall water splitting device assembled using TS(24)-P(50)-V2C as both anode and cathode demonstrates a low cell voltage requirement of 1.57 V to obtain 10 mA/cm2. Overall, the implementation of this work could offer an exciting avenue to overcome the re-stacking issue of V2C-MXene, affording a high-efficiency electrocatalyst with superior catalytic activity and desirable reaction kinetics.
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Affiliation(s)
- Yu Zhou
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Yousen Wu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Dongxuan Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Key Laboratory of Fine Chemicals of College of Heilongjiang Province, Qiqihar University, Qiqihar 161006, China
| | - Jinlong Li
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Key Laboratory of Fine Chemicals of College of Heilongjiang Province, Qiqihar University, Qiqihar 161006, China
| | - Yue Li
- School of Polymer Science & Engineering, Qingdao University of Science & Technology, Qingdao 266101, China
| | - Xue Yang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Shanshan Fu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Key Laboratory of Fine Chemicals of College of Heilongjiang Province, Qiqihar University, Qiqihar 161006, China
| | - Guozhe Sui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Key Laboratory of Fine Chemicals of College of Heilongjiang Province, Qiqihar University, Qiqihar 161006, China
| | - Dong-Feng Chai
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Key Laboratory of Fine Chemicals of College of Heilongjiang Province, Qiqihar University, Qiqihar 161006, China
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Zhao X, Zhu M, Tang C, Quan K, Tong Q, Cao H, Jiang J, Yang H, Zhang J. ZIF-8@MXene-reinforced flame-retardant and highly conductive polymer composite electrolyte for dendrite-free lithium metal batteries. J Colloid Interface Sci 2022; 620:478-485. [PMID: 35452945 DOI: 10.1016/j.jcis.2022.04.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 11/26/2022]
Abstract
Though polymer electrolytes have been regarded as promising separators for solid-state lithium metal batteries, their low ionic conductivity, poor thermostability and inflammability limit their practical applications. Herein, a polymer composite electrolyte consisting of metal-organic frameworks modified Ti3C2-MXene nanosheets (ZIF-8@MXene) and polymer mixture (PE-ZIF-8@MXene) was fabricated. The fabricated nonflammable ZIF-8@MXene nanosheets have abundant functional groups and Lewis acid sites as well as high specific surface area. In the composite electrolyte, ZIF-8@MXene nanosheets increased the dissociation of lithium salts and provided channels for transporting ions, accelerating the Li ion transportation. They also enhanced the tensile strength, thermostability and flame resistance of PE-ZIF-8@MXene. Consequently, the fabricated flame-retardant PE-ZIF-8@MXene presented high ionic conductivity (4.4 mS cm-1), impressive Li+ transference number (0.76) and enhanced tensile strength (3.77 MPa). In addition, the assembled Li|PE-ZIF-8@MXene|Li had a long cycle life of 2000 h, and Li|PE-ZIF-8@MXene|LiFePO4 batteries displayed a capacity retention of 89.6% after 500 cycles.
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Affiliation(s)
- Xufeng Zhao
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
| | - Mengqi Zhu
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China.
| | - Conggu Tang
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
| | - Kechun Quan
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
| | - Qingsong Tong
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China.
| | - Hewei Cao
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
| | - Jiacheng Jiang
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
| | - Hongtao Yang
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
| | - Jindan Zhang
- College of Chemistry and Materials Science, Fujian Provincial University Engineering Research Center of Efficient Battery Modules, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China.
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