JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Jiaxing Wen,Yi Pei,Li Liu,Die Su,Min Yang,Qianfu Wang,Wen Zhang,Jing Dai,Yan Feng,Tianjing Wu,Xianyou Wang
Both antimony selenide and antimony are promising anode materials for lithium-ion batteries. However, owing to the influence of the poor electronic conductivity of Sb 2 Se 3 and the large volume expansion of the two materials during the lithiation process, their electrochemical performance is limited and the practical application is restricted. In this work, for the first time, the hierarchical Sb 2 Se 3 and Sb particles fully encapsulated into carbon nanofibers (Sb 2 Se 3 /Sb/C nanofibers) have been in-situ synthesized by electrospinning followed by controlled annealing. Combining the advantages of high specific capacity of Sb 2 Se 3 , good electronic conductivities of Sb and C, and strong stability of C matrix, the Sb 2 Se 3 /Sb/C nanofibers electrode shows excellent lithium-storage performance. It achieves a high reversible capacity (764 mA h g −1 after 300 cycles at 0.1 A g −1 ), splendid ultralong cycling stability (429 mA h g −1 after 1000 cycles at 1 A g −1 ), and high rate capability (342 mA h g −1 at 5 A g −1 ). It demonstrates that Sb 2 Se 3 /Sb/C nanofibers are promising high-performance anode materials for lithium-ion batteries.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Miao Lu,Siyuan Zhang,Zhongmei Song,Liang Ma,Haining Liu,Ming Fang,Huifang Zhang,Xiushen Ye,Zhijian Wu
Increased levels of octadecylamine (ODA) and 4-dodecylmorpholine (DMP) in the aqueous, primarily utilized as flotation agents in the worldwide production of potash fertilizer, imperil the stability of ecosystems and the downstream production of high-end chemicals. Nevertheless, there is a dearth of exhaustive studies pertaining to the elimination of ODA and DMP. Herein, the Ti/SnO 2 -Sb/β-PbO 2 anode was fabricated by a thermal decomposition-electrodeposition technique for the electrocatalytic degradation of ODA and DMP. The degradation efficiency of ODA and DMP can achieve complete degradation, reaching 100%, after treatment periods of 10 min and 120 min, respectively. Meanwhile, the TOC removal efficiency of ODA and DMP is up to 85% and 61% at 30 min and 120 min, respectively. In particular, sulphate exhibits inhibitory degradation activity of ODA and DMP in comparison to chloride salt. The recycling and accelerated lifetime tests indicate excellent stability and recyclability of the Ti/SnO 2 -Sb/β-PbO 2 electrode. The mechanism of electrocatalytic degradation involves indirect electrochemical oxidation mediated by free radicals. The primary reactive species responsible for the degradation of DMP and ODA, as determined through scavenger quenching experiments and ESR, are ·OH and Cl·. The degradation of the ODA and DMP commences with the elimination of N element, leading to the formation of the N O 3 - . The carbon chain subsequently undergoes the breakdown. The degradation pathways of ODA and DMP were also proposed based on the GC–MS and H-NMR analyses, respectively. Moreover, the Ti/SnO 2 -Sb/β-PbO 2 anode performed excellently in the removal of ODA and DMP in real samples, TOC removal from ODA and DMP in natural samples was 56% and 52%, respectively, within 180 min. This study provides the first exploration of electrocatalytic degradation mechanisms and pathways of ODA and DMP based on the Ti/SnO 2 -Sb/β-PbO 2 anode.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2022
·
IF 5.6
Yaqi Hu,Qilin Wei,Ke Xing,Xiaorong Li,Peng Yu,Li Chen,Xianci Zhong,Bingsuo Zou
Indium (In)-based perovskites have become promising benign alternatives of lead halide perovskites due to their considerable stability, less toxicity and highly luminescence efficiency. Herein, the highly efficient and stable red-emitting Sb-doped In-based perovskites were synthesized via anionic component engineering. The as-synthesized Sb:Cs 2 InClBr 4 ·H 2 O crystals gave a wide emission band at 680 nm from self-trapped excitons with an extraordinary high photoluminescence quantum yield of 93% due to the modified charge-transfer energy and distorted lattice enhanced electron-phonon coupling by Br - ions incorporation. In addition, the Sb:Cs 2 InClBr 4 ·H 2 O crystals also exhibited excellent thermal stability, which could facilitate their applications. In addition, a cool white light-emitting diode with high brightness was manufactured by using this product, with some other luminescent QDs. These results demonstrate the applicability and processibility of anionic component engineering in the synthesis of highly efficient and tunable emitting In-based perovskites, which would promote their application in optoelectronic devices.
研究领域:
材料科学
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光电
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光子学
✓ 已验证
DOI
高影响因子
ENVIRONMENT INTERNATIONAL
·
2021
·
IF 9.621
Chao Yang,Yiang Fan,Shanshan Shang,Pu Li,Xiao-yan Li
Electrochemical oxidation (ECO) is an appealing technology for treating emerging organic pollutants in wastewater. However, the conventional flow-by ECO process is expensive with a low energy efficiency owing to the limitations of mass transport of contaminants to the limited surface area of the anode. In this study, a novel freestanding porous and permeable SnO 2 -Sb anode was fabricated by one-step sintering using micrometer-sized (NH 4 ) 2 CO 3 grains as the pore-forming agents. This permeable SnO 2 -Sb anode without Ti substrate functioned as a reactive anodic filter (RAF) in an ECO cell to treat wastewater containing ciprofloxacin (CIP). Forcing the wastewater through the porous RAF depth-wise improved the mass transport and vastly enlarged the electroactive surface area. Compared with the conventional flow-by configuration, the flow-through RAF exhibited a 12-fold increase in the mass transfer rate constant (60.7 × 10 −6 m s −1 ) and a 5-fold increase in the CIP degradation rate constant (0.077 min −1 ). At a cell potential of 4.0 V, more than 92% of the CIP was degraded in a single-pass operation at a filtration flux of 54 L m −2 h −1 and a short retention time of 1.7 min through the RAF. The robustness and stability of the RAF were demonstrated by its remarkable CIP degradation efficacy of 99% during 200 h of operation. The mechanism of CIP degradation was examined using probe molecules and density functional theory calculations and found to be a combined effect of direct electron transfer and oxidation by generated radicals ( OH and SO 4 − ). The great potential of RAF in flow-through ECO was further validated by its effective removal (>92%) of various organic pollutants in actual municipal wastewater at a low energy consumption of 0.33 kWh m −3 . The RAF-based ECO process thus provides an advanced environmental technology for the oxidation of toxic and recalcitrant organic pollutants in wastewater treatment.
研究领域:
环境工程
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化学工程
·
水处理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2022
·Vol. 14
·期 29
·10566-10572
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IF 8.307
Tongge Li,Haoyu Hu,Tonghui Cai,Xiaoqi Liu,Yixun Wang,Liying Wang,Yu Zhang,Wei Xing,Zifeng Yan
Rechargeable aluminum-ion batteries, RAIBs, as a prime candidate for next-generation batteries, have attracted much attention due to their extremely high anode capacity and good safety. However, the lack of matching high-capacity cathode materials and reasonable design limit their practical development. Herein, core–shelled Sb@C nanorods are prepared by polymer coating and thermal reduction as a metal-based cathode for RAIBs. The carbon shell and graphene aerogel interlayer effectively block the diffusion and shuttling of charging products, thus exhibiting excellent electrochemical performance. This Al–Sb battery delivers an initial discharge capacity of 656 mA h g−1 at 100 mA g−1, a stable discharge voltage of 0.9 V, and excellent cycling stability maintained at 306 mA h g−1 after 500 cycles at 1 A g−1. Serial characterizations are used to monitor the structural changes of Sb in reversible reactions and to determine the configuration of the charged products, showing that the product exists in the form of [SbCl4]+ cations, that is, a five-electron transfer reaction occurs with a very high theoretical capacity (1100 mA h g−1). This study sheds light on the energy storage mechanism of a metallic Sb cathode in RAIBs, and provides new insights into the study of high-capacity cathodes and the rational design of battery structures.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemElectroChem
·
2022
·Vol. 9
·期 12
·e202200156
·
IF 4.782
Jing Gao,Xiaolin Sun,Cheng Wang,Yuan Zhang,Li Yang,Depeng Song,Yue Wu,Zewen Yang,Takeo Ohsaka,Futoshi Matsumotoc,Jianfei Wu
Graphical Due to the Sb- and O-cosubstitution , the Li 10 SnP 1.84 Sb 0.16 S 11.6 O 0.4 sulfide electrolyte with high ionic conductivity, broad electrochemical window, and high air stability was prepared for high-performance all-solid-state battery. Electrochemical measurement and postmortem analysis of cycled electrodes results revealed that the mechanism of improving cell stability is the inhibition of electrolyte side reaction in the cathode. Sb- and O-cosubstituted sulfide electrolyte was demonstrated to be a promising solid electrolyte for practical all-solid-state battery. The development of solid-state electrolytes with high ionic conductivity, broad electrochemical stability, and high air stability is the key to realizing the practical application of all-solid-state batteries. Herein, Sb- and O-cosubstituted Li 10 SnP 2 S 12 sulfide electrolytes are prepared for the first time. An appropriate amount of Sb and O substitution provides the optimized Li 10 SnP 1.84 Sb 0.16 S 11.6 O 0.4 electrolyte with the highest ionic conductivity of 2.58 mS ⋅ cm −1 at RT. Furthermore, the cyclic voltammetry analysis results demonstrate that the Li 10 SnP 1.84 Sb 0.16 S 11.6 O 0.4 electrolyte displays a broader electrochemical window of 1.4–5.0 V vs. Li + /Li than that of 1.7–2.4 V vs. Li + /Li for the nonsubstituted Li 10 SnP 2 S 12 . Moreover, benefitting from the soft acid Sb 5+ and hard base O 2− dual substitution, the air stability of electrolyte has been improved. Furthermore, the LiNbO 3 @LiCoO 2 /Li−In cell assembled with the Li 10 SnP 1.84 Sb 0.16 S 11.6 O 0.4 electrolytes exhibits a high initial discharge specific capacity of 124.7 mAh ⋅ g −1 at 0.05 C and maintains 85 % capacity retention after 200 cycles at 0.5 C and 25 °C, which is much higher than that of the cell assembled with the Li 10 SnP 2 S 12 electrolytes. XPS measurement results revealed that the mechanism of improving cell stability is the inhibition of electrolyte side reaction in the cathode. Sb- and O-cosubstituted Li 10 SnP 2 S 12 was demonstrated to be a promising solid electrolyte for practical all-solid-state batteries.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·
IF 5.816
Xianyang Li,Jiakang Qu,Zuojun Hu,Hongwei Xie,Huayi Yin
Facile synthesis methods and rich-reserve feedstocks are the keys to accelerating the scale commercial use of Sb-based anodes for sodium-ion batteries (SIBs). In this paper, we synthesize Sb/carbon nanotubes (CNTs) composite anodes by a straightforward electrochemical approach using stibnite and CNTs as feedstocks. The concentrated sodium hydrate solution profits the formation of antimony and electrons enables the solid-state electrochemical desulfurization . The low-cost stibnite can be directly obtained from the earth's crust avoiding the intermediate processes and pollution of preparing the common-used raw materials SbCl 3 and metallic Sb. CNTs provides a network for both electron and ion transport, thereby resulting in producing Sb particles anchored in the CNTs network as well as restraining the cluster of electrolytic Sb particles. The electrolytic Sb-0.5CNTs anode delivers a decent capacity of 510 mAh g −1 at 0.1 A g −1 after 200 cycles and even 425 mAh g −1 at 1 A g −1 over 100 cycles. The excellent sodium-storage performances are attributed to the unique structure of the electrolytic Sb/CNTs composite. This electrochemical desulfurization method can be expanded to prepare other metal-carbon type anodes from metal sulfides ores and carbon materials composites.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yunlei Cen,Yuanyuan Zhou,Mingshi Zhu,Ke Zheng,Shaoqi Zhou
In this work, Ti/TiO2-RNTs/SnO2–Sb–Ni-La electrodes were developed in three deposition stages. TiO2-RNTs improved the bonding of the bottom layer, and Ni–La codoping resulted in higher film stability. Compared with other electrodes, this electrode exhibits excellent performance with a denser structure, higher OEP (2.17 V), lower Rct (5.36 Ω), longer electrode strengthening life, and larger active specific surface area. The degradation of oily wastewater revealed an oil removal rate equal to 97.88% under optimal conditions. In comparison to the Ti/TiO2-RNTs/SnO2–Sb obtained via the one-step hydrothermal technique, the service life improved by 8.60 times, and the degradation rate (RD) of the current electrode (k = 0.0254 min–1) was enhanced by 2.67 times, whereas the removal rate remained stable after 10 cycles. Under the continuous attack of free radicals such as •OH, 48 types of organic matter in wash oil were decomposed, and most of the alkanes and polycyclic aromatic hydrocarbons were mineralized. Compared with direct current, pulse current electrolysis of the oil-washing wastewater can save 47.95% electrical energy, and the energy consumption of chemical oxygen demand removal per unit mass can be reduced by 72.02%. Therefore, the Ti/TiO2-RNTs/SnO2–Sb–Ni-La pulse electrochemical oxidation method is expected to reduce energy loss and improve the electrochemical treatment of oily wastewater.
研究领域:
环境科学
·
电化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2019
·
IF 5.108
Kunlun Yang,Yuanli Liu,Yizhou Li,Zhen Cao,Chuchen Zhou,Zheni Wang,Xurui Zhou,Shams Ali Baig,Xinhua Xu
In this study, the selective adsorption performance of different Fe-Mn binary oxides (FMBOs) towards Sb(V) in the textile wastewater under different concentrations of coexisting anions, surfactants and dyes were investigated. Results showed that the influences of different anions on the Sb(V) removal followed an order of phosphate > carbonate > sulfate > nitrate > chloride. The frequently-used organic acid of acetate was found to have insignificant effect. The coexisting surfactant with sulfonic groups could have adverse effect on the removal due to sulfonic groups could compete the adsorptive sites on Fe oxides with Sb(V). While the quaternary ammonium surfactant might have minor effect. The influences of the three widely used dyes on the Sb(V) adsorption decreased in the following order: reactive black-5 >acid orange-7> disperse blue-60, which confirmed that the dyes with sulfonic groups would have relatively higher effect. The selective adsorption capacities of Sb(V) by FMBOs followed an order of FMBO 3 > FMBO 5 >FMBO 10 > FMBO 20 >PFO. Fixed-bed column adsorption supplied useful parameters and evidently indicated that the cyclic utilization of FMBO 3 was cost-efficient for practical dynamic Sb(V) removal. The Sb(V) removal by FMBO 3 from real textile wastewater can simultaneously improve the removal efficiency, stabilize pH and prevent the increase of iron concentration as compared to the traditional coagulation, further demonstrating the high practical applicability of FMBO 3 .
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2024
·
IF 14.3
Yijun Zhao,Xingru Yang,Lun Yang,Fangjian Xing,Cihui Liu,Yunsong Di,Guiyuan Cao,Shibiao Wei,Xifeng Yang,Xiaowei Zhang,Yushen Liu,Zhixing Gan
The smart materials with multi-color and stimuli-responsive luminescence are very promising for next generation of optical information encryption and anti-counterfeiting, but these materials are still scarce. Herein, a multi-level information encryption strategy is developed based on the polychromatic emission of Sb-doped double perovskite powders (SDPPs). Cs 2 NaInCl 6 :Sb, Cs 2 KInCl 6 :Sb, and Cs 2 AgInCl 6 :Sb synthesized through coprecipitation methods exhibit broadband emissions with bright blue, cyan, and orange colors, respectively. The information transmitted by specific SDPP is encrypted when different SDPPs are mixed. The confidential information can be decrypted by selecting the corresponding narrowband filter. Then, an encrypted quick response (QR) code with improved security is demonstrated based on this multi-channel selection strategy. Moreover, the three types of SDPPs exhibit three different water-triggered luminescence switching behaviors. The confidential information represented by Cs 2 NaInCl 6 :Sb can be erased/recovered through a simple water spray/drying. Whereas, the information collected from the green channel is permanently erased by moisture, which fundamentally avoids information leakage. Therefore, different encryption schemes can be designed to meet a variety of encryption requirements. The multicolor and stimuli-responsive luminescence greatly enrich the flexibility of optical information encryption, which leaps the level of security and confidentiality.
研究领域:
材料科学
·
光学
·
密码学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Yongyang Chen,Fulin Li,Xiaochun Dong,Dan Guo,Yixuan Huang,Shanping Li
Efficient and stable rGO@Ti/SnO 2 –Sb composite electrodes were prepared by the sol-gel method. The microscopic morphology , crystal structure, and electrochemical properties of the rGO@Ti/SnO 2 -Sb composite electrodes were characterized by a range of characterization techniques. The electrocatalytic oxidation activity of the electrodes was evaluated by the degradation efficiency of the fluoroquinolone antibiotic norfloxacin (NOR). Simultaneously, the effects of different experimental conditions on the degradation efficiency of NOR were also investigated, such as calcination temperatures, brushing times, initial pH, initial electrolyte concentration , etc. The enhanced electrocatalytic oxidation activity can be attributed to the excellent electron transfer efficiency, higher electrode specific surface area, and stronger adhesion of the electrode coating to the substrate. Additionally, the possible NOR degradation pathway was deduced through the main intermediates, and the mechanism of NOR degradation was discussed based on experimental and characterization results. This work provides a simple and effective method to prepare highly active composite electrodes for electrocatalytic oxidation to remove organic pollutants from water.
研究领域:
环境科学
·
电化学工程
·
材料科学
·
水处理技术
·
污染控制化学
·
纳米复合材料
·
环境功能材料
✓ 已验证
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2021
·
IF 6.789
Wenpeng Li,Qingping Wang,Xiaoying Jin,Nasreen Islam Khan,Gary Owens,Zuliang Chen
Wastewater generated during mining remains a significant source of antimony pollution, because techniques to quickly and efficiently remove antimony from wastewater do not exist. In this study, zeolitic imidazolate framework-8 (ZIF-8), a specific type of Metal Organic Frameworks (MOFs), was successfully used to remove trace levels (1 mg L −1 ) of Sb(V) with a high removal efficiency when the ZIF-8 dose was 0.5 g L −1 . Scanning electron microscopy-X-ray energy dispersive spectrometry (SEM-EDS) indicated that Sb(V) was adsorbed onto the ZIF-8surface. The powder X-ray diffraction (XRD) pattern of ZIF-8 before and after adsorption of Sb(V) indicated that ZIF-8 was successfully synthesized, and remained structurally stable after Sb(V) was adsorbed. Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) both suggested complexation of zinc on ZIF-8 with Sb(V), where removal of Sb(V) by ZIF-8 followed the Langmuir adsorption isotherm with pseudo second-order kinetics. Thus, a possible removal mechanism was proposed which involved Sb(V) complexing with the zinc hydroxyl groups on ZIF-8 (Zn–OH–Sb). Practically, ZIF-8, could remove 78.6% of Sb(V) from a mining wastewater containing 20 μg L −1 Sb(V). Furthermore, ZIF-8 could be remain active after repeated uses and could still remove and 42.3% of Sb(V) from wastewater containing 1 mg L −1 ) Sb(V) even when the ZIF-8 was reused five time. This indicated that ZIF-8 had potential for practical removal of Sb(V) from mining wastewaters.
研究领域:
环境科学
·
水处理
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）