MEASUREMENT SCIENCE and TECHNOLOGY
·
2022
·Vol. 34
·期 2
·025106
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IF 2.398
Qianchun Zhang,Qin Zhou,Yun Wu,Yanxin Li,Fengling Tian,Shan Tang,Li Jiang
In this study, MIL-53(Al) and Sb2SnO5 were synthesized by hydrothermal and precipitation methods, respectively. The doped MIL-53(Al)/Sb2SnO5 showed excellent catalytic properties, specifically for selectivity and sensitivity for isobutanol (IBN). To assess the catalytic properties of MIL-53(Al)/Sb2SnO5, an IBN gas sensor based on cataluminescence of MIL-53(Al)/Sb2SnO5 was developed, and it demonstrated detection of IBN with high sensitivity, high specificity, fast detection, and good stability. The signal response and recovery time of IBN gas sensor were 0.5 s and 6 s, respectively, and a good linear relation was 0.050–2.5 μg ml−1 (R2 = 0.9956) with a low detection limit of 0.015 μg ml−1. Further, the IBN sensor applied in the detection of real samples had satisfactory recoveries (90.0%–108%) with relative standard deviations of 3.2%–6.7%. The developed sensor based on MIL-53(Al)/Sb2SnO5 has great prospects for the practical detection of IBN gas in the fields of environmental analysis, safety monitoring, etc.
研究领域:
材料科学
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环境分析
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传感技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Xiaojing Chen,Ning Zhang,Pengfei He,Xuli Ding
Low cost and considerable theory specific capacity (∼1195 mAh g −1 ) make Sb 2 SnO 5 (SSO) material becoming a potential candidate for sodium-ions battery anodes. However, the low electronic conductivity and sluggish ions transfer kinetic has inhibited the practical applications. Herein, we demonstrate a novel Sn/Sb@SSO@PCFs composite using simple but effective electrospinning methods, which enable SSO nanoparticles embedded with Sn and Sb nanodomains in situ generation. The SSO was first reported as anode for sodium-ion batteries and in situ generation Sb and Sn nanocrystals domain around the SSO oxides . Different from existing tactics, the unique composite establishes a robust and efficient electrical contact between the SSO and the conductive Sb and Sn phases, enabling fast ions and electrons transfer across the electrochemical active SSO/Sb/Sn. Meanwhile, the composites offer an opportunity to compromise the challenges faced by each entity and enhance the overall performance by circumventing the weakness of individual SSO, Sn and Sb. As evidenced, the as-fabricated composite has unexpected electrochemical properties , including high capacity and long cycle stability with a retention rate of 83% after 450 cycles at 0.5 C. Combined with synergistic Na + ions storage of SSO/Sb/Sb and a simple and scalable manufacturing process, this study provides a new strategy to modulate material delivering high capacity and cycle stability for the next generation sodium ions batteries (SIBs).
研究领域:
材料科学
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电化学
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纳米材料
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能源存储
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电池技术
✓ 已验证
DOI
高影响因子
IONICS
·
2024
·Vol. 30
·期 3
·1403-1412
·
IF 2.4
Yu Chujie,Liu Baoyang,Li Mingzhu,Ding Xuli
Sodium-ion battery is evolving into a desirable alternative technology to lithium-ion batteries, thanks to its wide material distribution and low cost. Tin-antimony oxide is gaining research interest as a sodium-ion battery anode material owing to its ideal theoretical specific capacity, environment friendly, and low cost. However, because of the inner nature of poor electrical conductivity of oxides and slow ionic diffusion kinetic, the electrochemical performance of tin-antimony oxides (SSO) differs significantly from the theoretical value of merit. In this paper, we demonstrated N-doping porous carbon fibers encapsulated Sn/Sb@Sb 2 SnO 5 composite (Sn/Sb@Sb 2 SnO 5 @PCFs-N) material. Through the use of a simple electrostatic spinning technique, the Sn and Sb nanocrystalline were in situ generated around the SSOs in a specific way, and the N-doping in the fabricated porous carbon fibers can modulate the charge transport in the fabricated composite. The unique structure can successfully increase the electrical conductivity and the specific capacity of the fabricated composite. Using as anode for Na + ions storage, the fabricated composite delivers high specific capacity and good cycling stability and rate capability, showing a high capacity of 450 mAhg −1 at 50 mAg −1 current density even after 100 cycles. The better rate capability can be sustained even when the current raised up to 500 mA g −1 . This current work can offer a perspective on the effect of phases modified and doping on the functionality of materials for the next-generation high-specific energy sodium-ion battery.
研究领域:
材料科学
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储能技术
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电化学
✓ 已验证
DOI
高影响因子
ChemistrySelect
·
2023
·Vol. 8
·期 42
·e202302417
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IF 2.1
Fei Meng,Xiaojing Chen,Hongjie Zhou,Baolong Zhang,Jingcheng Cao,Qinglei Ge,Xuli Ding
Graphical As anode for sodium-ion battery, a multi-phase composite was designed and fabricated via electrospinning method through heating at different carbonization temperature. The fabricated composite was composed of Sb and Sn nanodomains that embedded in the porous carbon nanofibers which containing Sb 2 SnO 5 nanoparticles encapsulated inner, which exhibits the varied amount of Sb/Sn nanodomains and the effect on the electrochemical performance, especially, the Sn/Sb@SSO@PCFs-600 shows unexpected high capacity at current 3.0 Ag −1 and the retention ratio of 80 % after 200 cycles. Embedding the metal phase and modifying the microstructure is an important way to improve the storage capability of Sb 2 SnO 5 (SSO) anodes. Pertaining to sodium-ion batteries (SIBs), we design and fabricate Sb and Sn embedding porous carbon wires (PCWs) with SSO encapsulated (SSO@Sn/Sb-PCWs) composite as a high capability anode in this study. Not only accelerate the Na + ions diffusion, but also augment the stress resistance and the electrochemical reaction reversibility for the multiphase composite. Furthermore, the porous structure finely increases the ions diffusion kinetics, preventing the aggregation of Sn, Sb, and SSO particles, which achieves high reversible capacity while eliminating structure damage. As a consequence, the fabricated SSO@Sn/Sb-PCWs electrode exhibited exceptional cycling stability, maintaining a high reversible capacity of 448 mAh g −1 after 150 charge/discharge cycles, and good rate capability with current density up to 5.0 A g −1 . This new composite material studied in current work could shed light for the creation of sodium ion batteries with high specific energies in the near future.
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产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Baoyang Liu,Wang Yao,Peng Qin,Jun Qian,Xuli Ding
To cope with the charging-time and driving-range issues of the power batteries, a composite and phase modification tactics is manifested to increase the cycling stability and rate capability of the Sb 2 SnO 5 (SSO) anode for sodium-ion batteries (SIBs). The as-fabricated Bi/SSO@PCFs composite with Bi nanocrystals homogeneously dispersed on and around the SSO surface is prepared by an electrospinning method . The excellently dispersed Bi nanocrystals realize an effective contact with SSO, which effectively lowers the electron conduction barriers and promotes the sodium ion release as well as the transport upon the desodiation/sodiation process, increasing the rate capacity and cycle stability of the SSO anode. Importantly, a high-speed ion channel is constructed through the special layered Bi, and SbBi phase. The prepared Bi/SSO@PCFs anodes deliver a high rate capacity up to 25 A g −1 and long cycle life of 5000 cycles with 83 % capacity retention rate, sustaining an average capacity loss of 0.0034 % for each cycle. Particularly, the intercalation of Na + between layer-structure Bi and SbBi galleries provides a good basis for excellent cycle performance due to small volume change and unobstructed ion channels. This finding provides an effective strategy to establish ion transport highways, which essentially increase the rate-capacity and cycle-life of the SSO-based anodes for SIBs.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）