Journal of Central South University
·
2019
·Vol. 26
·期 6
·1469-1480
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IF 0.973
Tan Yu-ming,Chen Xian-hong,Zhu Yi-rong,Chen Li-juan
A novel spherical tremella-like Sb 2 O 3 was prepared by using metal-organic frameworks (MOFs) method under a mild liquid-phase reaction condition, and was further employed as an anode material for lithium-ion batteries (LIBs). The effect of reaction temperature and time on morphologies of Sb 2 O 3 was studied. The results from SEM and TEM demonstrate that the tremella-like Sb 2 O 3 architecture are composed of numerous nanosheets with high specific surface area. When the tremella-like Sb 2 O 3 was used as LIBs anode, the discharge and charge capacities can achieve 724 and 446 mA.h/g in the first cycle, respectively. Moreover, the electrode retains an impressive high capacity of 275 mA-h/g even after 50 cycles at 20 mA/g, indicating that the material is extremely promising for application in LIBs.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Nano Research
·
2017
·Vol. 10
·期 5
·1794-1803
·
IF 7.354
Pan Jun,Wang Nana,Zhou Yanli,Yang Xianfeng,Zhou Wenyao,Qian Yitai,Yang Jian
High-capacity anode materials are highly desirable for sodium ion batteries. Here, a porous Sb/Sb 2 O 3 nanocomposite is successfully synthesized by the mild oxidization of Sb nanocrystals in air. In the composite, Sb contributes good conductivity and Sb 2 O 3 improves cycling stability, particularly within the voltage window of 0.02–1.5 V. It remains at a reversible capacity of 540 mAh·g –1 after 180 cycles at 0.66 A·g –1 . Even at 10 A·g –1 , the reversible capacity is still preserved at 412 mAh·g –1 , equivalent to 71.6% of that at 0.066 A·g –1 . These results are much better than Sb nanocrystals with a similar size and structure. Expanding the voltage window to 0.02–2.5 V includes the conversion reaction between Sb 2 O 3 and Sb into the discharge/charge profiles. This would induce a large volume change and high structure strain/stress, deteriorating the cycling stability. The identification of a proper voltage window for Sb/Sb 2 O 3 paves the way for its development in sodium ion batteries.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
高影响因子
Sustainable Energy & Fuels
·
2020
·Vol. 4
·期 11
·5732-5738
·
IF 5.503
Dongdong Li,Junzhi Li,Junming Cao,Xiyao Fu,Liang Zhou,Wei Han
Sb and Sb2O3 are attractive anode materials for sodium ion batteries due to their relatively low cost and high theoretical capacity. However, the poor cycling stability caused by serious volume expansion hinders their development. In this work, we use electrospinning and carbon thermal reduction to easily synthesize Sb/Sb2O3@N-doped carbon nanofiber membranes. The flexible Sb/Sb2O3@NCNF membranes are directly used as free-standing electrodes in SIBs showing a high specific capacity and excellent cycling stability (527.3 mA h g−1 after 100 cycles at 0.1 A g−1). They can still deliver a reversible specific capacity around 400 mA h g−1 after 700 cycles even at 1 A g−1. The flexible free-standing design, simple synthesis methods and excellent electrochemical properties make the Sb/Sb2O3@NCNF electrodes an ideal anode candidate material for sodium ion batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
ACS Applied Engineering Materials
·
2024
·
IF 0
Jiao Yang Lu,Zhen Qi Bu,Donghua Wang,Binsheng He,Wei Tao Huang
Nanocomposites have gained significant attention for various applications, such as sensing, catalysis, and energy. While graphene–silver and other similar combinations have been extensively explored, the synthesis of nanocomposites based on antimony and noble metals (such as silver and gold) remains unexplored. In this study, we introduced an approach for preparing silver nanoparticle (AgNP)-decorated antimony trioxide nanocomposites (Sb2O3–Ag) with exceptional catalytic properties. These nanocomposites, synthesized rapidly using antimonene (AM) and Ag+ precursors under microwave-assisted heating, exhibited promising catalytic performance. Characterization techniques, including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR), confirmed the formation of Sb2O3–Ag nanocomposites, showcasing AgNPs dispersed on the surface of large irregular Sb2O3 particles. Evaluation of catalytic activity using p-nitrophenol (PNP) degradation revealed a rapid elimination rate of approximately 91.6% within 2 s. Several experimental parameters, such as the ratios of AM and Ag+ concentrations and the catalyst amount, were optimized to establish the best reaction conditions for PNP degradation. Furthermore, the sustained catalytic activity of Sb2O3–Ag nanocomposites over 1 month underscores their potential for long-term applications. Analysis through electron paramagnetic resonance spectroscopy suggests the generation of hydroxyl radicals responsible for PNP decomposition, supported by a proposed degradation pathway using electrospray ionization mass spectrometry. This study not only introduces a bimetallic nanomaterial based on Sb and Ag but also provides a sustainable solution for organic pollutant degradation.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
DOI
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2021
·Vol. 168
·期 10
·106510
·
IF 4.316
Yijing Xia,Yan Yan,Lingbing Hu,Qizhou Dai,Xiangjuan Ma,Juqing Lou,Yi Xia
This study focused on the enhanced mechanism of electrochemical degradation of antibiotic norfloxacin (NOR) using a self-made Ti/SnO2-Sb2O3/α,β-Co-PbO2 electrode. The electrode characterization, reaction mechanism, degradation performance, and toxicity assessment were studied. In contrast to the conventional Ti/SnO2-Sb2O3/α,β-PbO2 electrode, our prepared Co-doped PbO2 electrode showed the characteristics of more compact surface, smaller crystal size, higher oxygen evolution potential (OEP) and an increased yield of ·OH concentration. The application of Co-doped PbO2 electrode for the electrochemical oxidation of NOR was systematically analyzed. The optimal operating parameters were found to be Na2SO4 concentration of 0.1 mol L−1, initial NOR concentration of 50 mg L−1, initial pH of 5 and current density of 20 mA cm−2. Under these conditions, NOR, chemical oxygen demand (COD) and total organic carbon (TOC) removals reached 85.29%, 43.65% and 41.89% after 60 min of electrolysis, respectively. Through the intermediates detected during the electrochemical treatment process, a reaction pathway involving decarboxylation, defluorination and piperazine ring-opening was proposed. Finally, the toxicity assessment of the treated NOR solution towards Vibrio fischeri rapidly fell to non-toxicity and even reached to negative values after 50 min of electrolysis, indicating that electrochemical oxidation of NOR is an effective approach to reduce its toxicity to environmental ecosystem.
研究领域:
环境科学
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电化学工程
·
毒理学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Zhaomin Wang,Fanming Zeng,Dongyu Zhang,Xinyu Wang,Weiling Yang,Yong Cheng,Chun Li,Limin Wang
Antimony anode has attracted increasing attention with its suitable voltage platform and high theoretical capacity. Nonetheless, its actual application is largely hindered by the capacity loss due to the volume effect during the cyclic process. Herein, A novel polyhedral structure nitrogen and carbon doped Sb/Sb 2 O 3 (Sb/Sb 2 O 3 -NC) nanoparticles are designed via a liquid phase reaction approach followed by a thermal treatment process. The nanocomposite anode used for lithium-ion batteries (LIBs) delivers a reversible specific capacity as high as 460 mAh g −1 after 100 cycles at 2 A g −1 and excellent rate performance of 353 mAh g −1 at 10 A g −1 . In addition, at a current density of 500 mA g −1 , Sb/Sb 2 O 3 -NC exhibits a capacity of 318 mAh g −1 after 100 cycles and excellent rate performance of 183 mAh g −1 at 2 A g −1 for sodium-ion batteries (SIBs). The results suggest that the polyhedral Sb/Sb 2 O 3 -NC could be a potential candidate as anode material for LIBs and SIBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 12
·6968-6982
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IF 10.7
Jing Qi,Chengkai Lin,Shuqi Deng,Yinze Zuo,Hui Zheng,Xuechao Jiao,Wei Yan,Jiujun Zhang
Potassium (K) with higher abundance than lithium has been explored as an anode material for K metal batteries (KMBs) for possible application in large-scale energy storage. However, the unstable solid electrolyte interface (SEI) at the K anode due to uncontrolled growth of K dendrites is a challenge in KMB development. In this paper, a multifunctional interface containing Sb2O3 and reduced graphene oxide (rGO) on Cu foam to form a current collector (Cu@Sb2O3@rGO) is developed for a KMB anode through structural regulation, where the Cu form with a large surface area can reduce the volume change during charge and discharge processes, Sb2O3 can provide potassiophilicity toward uniform K plating and stripping to give a dendrite-free K anode, and rGO can provide abundant defects for increasing the ion transport and reaction kinetics. Such a Cu@Sb2O3@rGO current collector exhibits a remarkable reversibility of K plating/stripping for up to 600 cycles at 0.5 mA cm−2/2 mA h cm−2, and the formed Cu@Sb2O3@rGO@K anode demonstrates an extended cycle lifespan of 1300 hours under 0.2 mA cm−2/0.2 mA h cm−2 in symmetric cells. This anode-constructed PTCDA‖ Cu@Sb2O3@rGO@K full battery exhibits both exceptional cycling stability (over 2000 cycles) and outstanding rate capability (112.8 mA h g−1 at 10 C). Furthermore, even under extremely low temperature (−20 °C), this battery can still maintain an impressive 55% of its room temperature capacity. In situ Raman spectroscopic techniques and electrochemical methods including in situ EIS, half cell, symmetric cell, and full cell tests and theoretical DFT calculations are carried out to probe the structure–performance relationship and the reaction mechanisms for fundamental understanding toward further optimizing the performance of such the K anode and the corresponding KMBs. The strategy for stabilizing the K metal anode in this work may provide a guidance for further development of advanced low-temperature potassium metal batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Science China-Materials
·
2022
·Vol. 66
·期 2
·513-521
·
IF 8.64
Zhao Bo-Sheng,Chen Peng,Gao Xue-Ping
Sulfide solid electrolyte is a promising candidate for the development of high-energy lithium-sulfur (Li-S) batteries. However, the concurrent improvement of ionic conductivity, bulk air stability, and compatibility of the electrolyte/electrode interface of sulfide solid electrolyte remains a huge challenge. Herein, we propose a dual-source doping (Sb 2 O 3 and LiI) strategy to prepare a multifunctional sulfide solid electrolyte. Sb 2 O 3 can broaden the transmission path of lithium ions and improve the bulk stability, and LiI can inhibit the generation of lithium dendrites and reduce the electrolyte/electrode resistance. Therefore, the sulfide solid electrolyte can be strengthened in terms of its bulk and interface, thus exhibiting a high ionic conductivity of 1.69 × 10 −3 S cm −1 at 30°C, high air stability, and high electrochemical stability with lithium metal. On this basis, the as-prepared all-solid-state Li-S batteries (ASSLSBs) can exhibit a high specific discharge capacity after being cycled at 0.05 C for 100 cycles at room temperature (833 mA h g −1 ) or 60°C (949 mA h g −1 ). This work provides a rational scheme for the preparation of practical sulfide solid electrolytes and high-performance ASSLSBs.
研究领域:
材料科学
·
能源存储
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
Small
·
2021
·Vol. 17
·期 6
·2006824
·
IF 13.281
Bochao Chen,Lizhuang Yang,Xiangren Bai,Qingzhao Wu,Ming Liang,Yuxuan Wang,Naiqin Zhao,Chunsheng Shi,Baozeng Zhou,Chunnian He
In this work, the core-shelled Sb@Sb 2 O 3 heterostructure encapsulated in 3D N-doped carbon hollow-spheres is fabricated by spray-drying combined with heat treatment. The novel core-shelled heterostructures of Sb@Sb 2 O 3 possess a mass of heterointerfaces, which formed spontaneously at the core-shell contact via annealing oxidation and can promote the rapid Na + /K + transfer. The density functional theory calculations revealed the mechanism and significance of Na/K-storage for the core-shelled Sb@Sb 2 O 3 heterostructure, which validated that the coupling between the high-conductivity of Sb and the stability of Sb 2 O 3 can relieve the shortcomings of the individual building blocks, thereby enhancing the Na/K-storage capacity. Furthermore, the core-shell structure embedded in the 3D carbon framework with robust structure can further increase the electrode mechanical strength and thus buffer the severe volume changes upon cycling. As a result, such composite architecture exhibited a high specific capacity of ≈573 mA h g −1 for sodium-ion battery (SIB) anode and ≈474 mA h g −1 for potassium-ion battery (PIB) anode at 100 mA g −1 , and superior rate performance (302 mA h g −1 at 30 A g −1 for SIB anode, while 239 mA h g −1 at 5 A g −1 for PIB anode).
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Yingcai Wang,Min Chen,Can Wang,Xiaoyang Meng,Weiqiu Zhang,Zefang Chen,John Crittenden
Methylisothiazolinone (2-methyl-4-isothiazolin-3-one) (MIT) is a commonly used biocide in wastewater treatment processes. Residual MIT in wastewater leads to high environmental risks and toxicity. The degradation of MIT via electrochemical oxidation, including kinetics, energy efficiency, oxidation mechanism and degradation pathway, was investigated in this study. Findings from energy and cost evaluation by using electrochemical technology were compared with those of other technologies. Experimental results indicate that electrolyte, current density and initial concentration can significantly affect MIT degradation. The lowest electrical energy per order was less than 3.85 kWh m −3 when NaCl was used as the electrolyte. Electrochemical degradation is advantageous because it can be easily applied without adding chemicals into wastewater and has relative low costs. The oxygen evolution, production of recalcitrant byproducts, and the mass transfer limitation resulted in the decrease of instantaneous current efficiency and mineralization current efficiency. Electron efficiency analysis demonstrated that 68.8% of the electrons used for MIT oxidation were effectively utilized to mineralize MIT into CO 2 . The proportion of direct and indirect oxidation of MIT during electrochemical degradation was quantitatively determined as 37.7% and 62.3%, respectively. HO was the most effective species for MIT degradation. MIT degradation pathway was proposed, in which the C C bond in MIT was broken down. C 3 H 7 NOS and C 3 H 7 NO 4 were detected, indicating the occurrence of ring opening reaction. Sulfur was oxidized into SO 4 2− and cleaved from C 3 H 7 NOS.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2015
·Vol. 3
·期 11
·5820-5828
·
IF 7.443
N. Li,S. Liao,Y. Sun,H. W. Song,C. X. Wang
Large volume changes cause a series of complicated problems in alloy-type anodes, such as pulverization, exfoliation and the capacity decay which results. Therefore, solutions for the problems caused by large volume changes in sodium ion battery (SIB) anodes are urgently needed. Herein, we report a novel route to encapsulate Sb2O3/Sb nanoparticles (Sb2O3/Sb-NPs) within a graphene shell nanostructure (Sb2O3/Sb@graphene) via microwave plasma irradiation of Sb(CH3COO)3 and a subsequent graphene growth procedure. The designed structure, Sb2O3/Sb@graphene NPs anchored on carbon sheet networks (CSNs), provides an ultra-thin, flexible graphene shell to accommodate the volume changes of Sb2O3/Sb, and thus demonstrates excellent cycling stability (92.7% of the desodiation capacity was retained after 275 cycles), a long cycle life (more than 330 cycles) and a good rate capability (220.8 mA h g−1 even at 5 A g−1). The stability could be compared to that of commercial graphite in lithium ion batteries.
研究领域:
材料科学
·
储能技术
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）