ChemNanoMat
·
2023
·Vol. 9
·期 4
·e202300037
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IF 3.8
Yiqi Liang,Jun Wang,Zhidong Tian,Kezheng Shang,Xiang Hu,Jiaqi Yu,Pingwei Cai,Yangjie Liu,Jun Yuan,Yichun Ding,Zhenhai Wen
Graphical The development of Zn ion energy storage devices is seriously hindered by the drawbacks of dendrite growth, low coulomb efficiency, and volume expansion in the plating/stripping process of Zn metal electrodes. In this paper, the electrode which optimized by chemically plating Sn on Cu foam with high surface area and high HER overpotential can provide a large number of active sites for homogeneous nucleation of Zn metal and alleviate HER side reactions, thus improving the reversibility of Zn electrodeposition. Zn ion energy storage devices have received widespread attention because of their high safety, environmental friendliness, low cost, and high energy density. However, Zn metal anodes usually suffer from disadvantages such as dendrite growth, low coulombic efficiency, and volume expansion during plating/stripping, which severely hampers the practical applications. Here, we construct 3D Zn frameworks by exploring different conductive hosts and modify 3D hosts by plating Sn to suppress Zn dendrites and side reactions. The electrode which optimized by electroplating Zn after chemically plating Sn on Cu foam (Sn−Cu foam@Zn) exhibits stable polarization voltage distribution and almost 100% coulombic efficiency over 200 cycles of Zn plating/stripping. Furthermore, when pairing with V 2 O 5 cathode, the full cell showed fast reaction kinetics and a capacity of 113 mAh g −1 after 1000 cycles at a current density of 1 A g −1 , which is 90.4% of the initial capacity. This work provides a new strategy for the development of high-performance Zn anodes.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Zhiqiang Liu,Hui Li,Huan Yao,Yi Zhuang,Runbo Gao,Zhiteng Wang,Zhenhe Zhu,Huixin Lan,Zeheng Li,Wenlong Cai
Constructing heterostructures is an effective strategy for the synthesis of high-performance anode electrode materials for lithium-ion batteries (LIBs). In this study, a “bubbling” PEGylated deep eutectic solvent (DES) method is utilized to synthesize SnO 2 /SnS heterostructure nanodots anchored on carbon nanosheets (SnO 2 /SnS@CN). A comprehensive investigation of the physical and chemical processes during the “bubbling” reaction offers in-depth insights into the underlying mechanism of the PEGylated DES approach. The carbon nanosheet structure enhances the electrical conductivity between SnO 2 particle units and, due to its excellent mechanical properties, significantly contributes to material stability. The nanodot configuration of the heterostructure further improves electron transfer and lithium-ion (Li + ) migration within the SnO 2 units. The SnO 2 /SnS@CN material exhibits outstanding Li + storage performance, achieving a high capacity of 675.6 mA h/g at 1 A/g after 1000 cycles. These findings establish a theoretical foundation for preparing heterostructure anode materials using the “bubbling” PEGylated DES method.
研究领域:
材料科学
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能源存储
✓ 已验证
DOI
PubMed
高影响因子
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
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2020
·Vol. 105
·期 6
·841-846
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IF 1.657
Wang Zhuang,Song Lan,Zhang Fan,Wang De-Gao
We experimentally investigated the toxicity of stannic oxide nanoparticles (SnO 2 NPs) to three freshwater species including Scenedesmus obliquus , Daphnia magna , and Danio rerio . To evaluate effect, toxicological impacts were compared to that of stannic chloride (SnCl 4 ). Based on the actual concentration of Sn, SnO 2 NPs suspensions inhibited growth of S. obliquus in a dose-dependent manner, demonstrating a median effect concentration of 2.28 ± 0.53 mg/L. However, SnO 2 NP suspensions were found to exhibit limited acute toxicity in D. magna and D. rerio . Moreover, the toxicity of the SnO 2 NP suspension was lower than SnCl 4 for all three trophic aquatic organisms. Comparison of component-specific contribution to overall toxicity indicated that, in SnO 2 NP suspensions, particulate Sn more significantly contributed to toxicity than dissolved Sn-ions. Furthermore, we found that the toxic mechanism of the SnO 2 NP suspension involved the induction of oxidative stress by increasing intracellular ROS accumulation.
研究领域:
环境科学
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毒理学
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生态学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTENGCOMM
·
2013
·Vol. 15
·期 17
·3296-3300
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IF 3.879
J. M. Xu,L. Li,S. Wang,H. L. Ding,Y. X. Zhang,G. H. Li
The influence of Sb doping on the structural and optical properties of the SnO2 nanocrystals and films were investigated. An unusual enhancement in near infrared absorption was found in the SnO2 nanocrystals with increasing Sb doping content, and the maximum absorption shifted to shorter wavelength.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2020
·Vol. 31
·期 19
·16539-16547
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IF 2.22
Li Jian,Chen Chen,Li Jialin,Li Shijun,Dong Chengjun
Tin-glycerate (Sn-Gly) spheres were synthesized through a simple solvothermal strategy, which was further thermally converted into SnO 2 . It is found that the loose SnO 2 spheres have been built up from nanoparticles with about 10 nm in size. The use of such SnO 2 nanostructures was further performed for low-ppm-level acetone detection. The results showed that the SnO 2 presented response of 123 to 100 ppm acetone vapor at 260 °C. The sensor also exhibited rapid response/recovery time (24.5 s/6.5 s), low detection limit (1.5 at 1 ppm), excellent selectivity, and good reproducibility. Especially, a good linearity ranging from 1 to 100 ppm acetone was fitted, making it a promising candidate for acetone detection.
研究领域:
材料科学
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化学传感器
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Zhi Li,Jiwei Zhang,Jie Shu,Jianping Chen,Chunhong Gong,Jianhui Guo,Laigui Yu,Jingwei Zhang
One-dimensional carbon nanofibers with highly dispersed tin (Sn) and tin antimonide (SnSb) nanoparticles are prepared by electrospinning in the presence of antimony-doped tin oxide (denoted as ATO) wet gel as the precursor. The effect of ATO dosage on the microstructure and electrochemical properties of the as-fabricated Sn-SnSb/C composite nanofibers is investigated. Results indicate that ATO wet gel as the precursor can effectively improve the dispersion of Sn nanoparticles in carbon fiber and prevent them from segregation during the electrospinning and subsequent calcination processes. The as-prepared Sn-SnSb/C nanofibers as the anode materials for lithium-ion batteries exhibit high reversible capacity and stable cycle performance. Particularly, the electrode made from Sn-SnSb/C composite nanofibers obtained with 0.9 g of ATO gel has a high specific capacity of 779 mAh·g −1 and 378 mAh·g −1 at the current density of 50 mA·g −1 and 5 A·g −1 , respectively, and it exhibits a capacity retention of 97% after 1200 cycles under the current density of 1 A·g −1 . This is because the carbon nanofibers can form a continuous conductive network to buffer the volume change of the electrodes while Sn and Sn-SnSb nanoparticles uniformly distributed in the carbon nanofibers are free of segregation, thereby contributing to electrochemical performances of the electrodes.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
Solar RRL
·
2021
·Vol. 6
·期 1
·2100778
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IF 8.582
Hongling Guo,Rutao Meng,Long Hu,Chun-Ho Lin,Yali Sun,Yue Liu,Jianyu Wu,Zhan Shen,Dewei Chu,Gang Wang,Li Wu,Guangxing Liang,Shifu Xiong,Fangfang Liu,Yi Zhang,Tom Wu
In spite of the merits such as Earth abundance and high performance, Cu 2 ZnSn(S,Se) 4 (CZTSSe) solar cells suffer from unfavorable Sn Zn antisite defects and complexes, which act as nonradiative recombination centers and deteriorate the open-circuit voltage ( V OC ). Therefore, the management of Sn composition is the prerequisite for achieving high-efficiency CZTSSe photovoltaic devices. At present, the Sn-related composition and defect modifications at different selenization pressures remain unclear, which restrain the development of efficient kesterite solar cells. Herein, a facile yet effective strategy to accurately adjust the Sn content in CZTSSe films by simply optimizing the selenization pressure is demonstrated. Compared with the widely used atmospheric pressure, it is unveiled that the appropriate negative pressure (0.7 atm) can tailor the optimal Sn content in the absorber layer, influencing both the Sn-related defects and the microstructures. In contrast, a lower (0.4 atm) and a higher (1.3 atm) selenization pressure results in undesirable deep Cu Sn defects and a Sn(S,Se) 2 secondary phase, respectively. A champion device fabricated at this optimal selenization pressure (0.7 atm) exhibits a power conversion efficiency of 11.32% with a V OC of 0.496 V. This study paves the path toward highly efficient kesterite solar cells by tailoring the composition-dependent defects.
研究领域:
材料科学
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太阳能电池技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Rui Li,Shuqing Nie,Chang Miao,Yu Xin,Houyi Mou,Guanli Xu,Wei Xiao
The nitrogen-doped carbon (NC) coating encapsulating heterostructural Sn/SnO 2 microcube powders (Sn/SnO 2 @NC) are successfully fabricated through hydrothermal, polymerization of hydrogel, and carbonization processes, in which the SnO precursor powders exhibit regular microcube structure and uniform size distribution in the presence of optimized N 2 H 4 ·H 2 O (3.0 mL of 1.0 mol/L). Interestingly, the precursor powders are easily subjected to a disproportionated reaction to yield the desirable heterostructural Sn/SnO 2 @NC microcube powders after being calcined at 600 °C in N 2 atmosphere in the presence of home-made hydrogel. The coin cells assembled with the Sn/SnO 2 @NC electrode present a high initial discharge specific capacity (1058 mAh g −1 at 100 mA g −1 ), improved rate capability (an excellent D Li+ value of 2.82 × 10 -15 cm 2 s −1 ) and enhanced cycling stability (a reversible discharge specific capacity of 486.5 mAh g −1 after 100 cycles at 100 mA g −1 ). The enhanced electrochemical performance can be partly ascribed to the heterostructural microcube that can accelerate the transfer rate of lithium ions by shortening the transmission paths, and be partly to the NC coating that can accommodate the volume effect and contribute to partial lithium storage capacity. Therefore, the strategy may be able to extend the fabrication of Sn/SnO 2 heterostructural microcube powders and further application as promising anode materials in lithium ion batteries.
研究领域:
材料科学
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能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2015
·
IF 2.999
Yong Cui,Zhe Zhang,Xu Du,Wei Liu,Yulin Deng,Shi Liu,Gang Wang
Ternary metastable wurtzite structure Cu 2 SnS 3 nanocrystals were successfully synthesized via solvothermal way. As-synthesized Cu 2 SnS 3 nanocrystals were characterized in detail by X-ray powder diffraction, energy dispersive X-ray spectrometry, UV–Vis–NIR spectrometry and transmission electron microscopy . Hybrid solution has been obtained by mixing Cu 2 SnS 3 nanocrystals ink and Zn molecule precursor solution. Hybrid solution process was used to fabricate Cu 2 ZnSn(S,Se) 4 thin film .
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
Nano Research
·
2020
·Vol. 14
·期 4
·1053-1060
·
IF 8.183
Wu Jun,Bai Xue,Ren Zhiyu,Du Shichao,Song Ziehen,Zhao Lei,Liu Bowen,Wang Guiling,Fu Honggang
Although Sn-based catalysts have recently achieved considerable improvement in selective electro-catalyzing CO 2 into HCOOH, the role of various valence Sn species is not fully understood due to the complexity and uncertainty of their evolution during the reaction process. Here, inspired by the theoretical simulations that the concomitant multivalent Sn (Sn 0 , Sn 11 and Sn IV ) can significantly motivate the intrinsic activity of Sn-based catalyst, the Sn/SnO/SnO 2 nanosheets were proposed to experimentally verify the synergistic effect of multivalent Sn species on the CO 2 -into-HCOOH conversion. During CO 2 reduction reaction, the Sn/SnO/SnO 2 nanosheets, which are prepared by the sequential hydrothermal reaction, calcined crystallization and low-temperature H 2 treatment, exhibit a high FE HCOOH of 89.6% at −0.9 V RHE as well as a large cathodic current density. Systematic experimental and theoretical results corroborate that multivalent Sn species synergistically energize the CO 2 activation, the HCOO* adsorption, and the electron transfer, which make Sn/SnO/SnO 2 favour the conversion from CO 2 into HCOOH in both thermodynamics and kinetics. This proof-of-concept study establishes a relationship between the enhanced performance and the multivalent Sn species, and also provides a practicable and scalable avenue for rational engineering high-powered electrocatalysts.
研究领域:
电催化
·
材料科学
·
理论计算
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2019
·
IF 15.548
Ding-chuan Zuo,Sheng-chao Song,Chang-sheng An,Lin-bo Tang,Zhen-jiang He,Jun-chao Zheng
This study presents a nanostructured Sn/SnO x @Ti 3 C 2 composite by in-situ growth of Sn/SnO x nanoparticles on the interlayer of 2D MXene (Ti 3 C 2 T x ) nanosheets through facile electrostatic attraction and liquid phase reduction. X-ray diffraction, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy results illustrate that Sn/SnO x nanoparticles are uniformly distributed into the MXene (Ti 3 C 2 T x ) interlayer, forming a sandwich-like nanostructured composite. MXene (Ti 3 C 2 T x ) nanosheets suppress Sn/SnO x nanoparticles’ volume expansion and agglomeration and accelerate the Li-ion and electron transition due to the distinguished confinement effect and excellent graphite-like layered structure. Furthermore, Sn/SnO x nanoparticles are embedded as pillars to enhance the longitudinal structural stability of MXene matrix by preventing the re-stacking of nanosheets during lithium insertion/extraction. The nanosized particles still reduce lithium migration path and increase active areas. Therefore, the Sn/SnO x @Ti 3 C 2 composite maintains 594.2 mAh g −1 after 200 cycles with a capacity recovery after 100 cycles. The synergistic effect of Sn/SnO x on MXene facilitates Sn/SnO x @Ti 3 C 2 nanostructures , thereby exhibiting excellent electrochemical properties for lithium-ion batteries.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS LETTERS
·
2018
·Vol. 148
·期 10
·3112-3118
·
IF 2.911
Han Yan,Yang Yawei,Zhao Jianqiu,Yin Xingtian,Que Wenxiu
Abstract Ternary Cu 2 SnS 3 (CTS) and Cu 2 SnSe 3 (CTSe) quantum dots were grown in-situ on reduced graphene oxide (rGO) nanosheets by a facile one-pot colloidal synthesis. Possessing abundant active sites and having the ability to harvest solar energy and to facilitate charge separation, the CTS(e)/rGO 0D/2D nanocomposites showed remarkably enhanced photocatalytic activities for degradation of rhodamine B and methyl orange aqueous solutions upon visible light irradiation. The nanocomposites of rGO supported monodispersed quantum dots were proved to be a suitable platform for photocatalytic applications due to the well-maintained 0D/2D nanostructure. Graphical Abstract
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）