Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 17
·10260-10268
·
IF 10.7
Yingfen Li,Xingye Chen,Runxi Wang,Nian Zhou,Fang Huang,Jun Zhao,Zhenghua Su,Shuo Chen,Guangxing Liang
In this study, Sb2S3 was introduced into the two-step selenization process to promote bottom grain growth and reduce the surface roughness of the Cu2ZnSn(S,Se)4 light-absorber layer. The introduction of Sb doping in Cu2ZnSn(S,Se)4 can passivate bulk and interface defects and a small conduction band offset (CBO) can be found, which facilitate the improvement of heterojunction carrier transport properties. Similarly, simulations illustrated that Sb doping improved device efficiency by controlling bulk and interface defects and band alignment. This optimized method facilitated the penetration of Sb, resulting in a high-quality CZTSSe absorber layer. Ultimately, the research culminated in a significant enhancement, yielding a solar cell with an impressive efficiency of 13.11%. These findings offer new possibilities for kesterite solar cells and advance the potential of CZTSSe materials in thin film photovoltaic applications.
研究领域:
材料科学
·
光伏技术
·
半导体物理
·
薄膜太阳能电池
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无机功能材料
·
固态电子学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Shuai Yan,Haomiao Li,Zehang Li,Wenxin Chen,Xianbo Zhou,Hao Zhou,Weixin Zhang,Yaling He,Kai Jiang,Kangli Wang
Liquid metal batteries (LMBs), with the merits of long lifespan and low cost, are deemed as one of the most promising energy storage technologies for large-scale energy storage applications due to the use of liquid metal electrodes and molten salt electrolytes. However, the consequent problem is that the poor wettability between graphite-based collectors and the liquid metal/alloy electrodes leads to large contact resistance, which limits the efficiency and stability of the battery. In this work, a transition layer in situ formed on a graphite-based positive electrode current collector by Ti additive is designed for the first time, which increases the wettability between the positive alloy and the current collector and improves the voltage efficiency of the Li||Sb-Sn cell from 85.6 to 88.4%. These results provide new ideas for the design of high-efficiency LMBs.
研究领域:
能源存储技术
·
材料科学
·
电池技术
✓ 已验证
DOI
高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Weihao Xia,Haonan Wang,Fengjun Ji,Tiansheng Bai,Xuan Zhou,Jinru Huang,Jingyu Lu,Yuhan Wu,Deping Li,Lijie Ci
Antimony (Sb)-based anode materials suffer from poor cycling stability in potassium-ion batteries (PIBs) due to severe volume changes during charge/discharge processes, which limit their practical application. To address this challenge, a dual strategy of alloying and carbon coating was employed, resulting in the successful synthesis of composite anodes comprising porous carbon-coated SbBi nanoalloys with tunable Sb/Bi atomic ratios. This approach significantly enhances the structural stability and electrochemical performance of Sb-based anodes. The optimized Sb 0.5 Bi 0.5 @C anode exhibits exceptional cycling stability, delivering a high reversible capacity of 316.0 mA h g −1 after 600 cycles at 0.2 C, and remarkable rate capability (230.0 mA h g −1 at 5.0 C). Moreover, it demonstrates improved thermal stability at 45°C, retaining a capacity of 328.6 mA h g −1 after 1000 cycles at 2.0 C. The potassium storage mechanism is elucidated through kinetic analysis and theoretical calculations. Furthermore, full-cell configurations were assembled and evaluated, demonstrating promising practical application potential with similarly outstanding electrochemical performance.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materiomics
·
2025
·
IF 9.6
Fengting Mao,Zhongwei Zhang,Sijing Zhu,Chengyan Liu,Jie Gao,Jun-Liang Chen,Xiaoyang Wang,Tong Xing,Lei Miao
GeTe is a promising medium-temperature thermoelectric material. However, an excessively high concentration of Ge holes leads to a high hole carrier concentration, which can degrade its performance. Though carrier concentration reduction via doping has been pursued as a principal optimization approach, the strong interdependence between key transport parameters and carrier concentration severely limited the overall enhancement efficacy. In this work, a simple composite method is employed to achieve synergistic optimization of carrier concentration and carrier mobility, thereby increasing the power factor and reducing the lattice thermal conductivity. Sb and Fe form a core-shell structure, which effectively scatters phonons and reduces the lattice thermal conductivity, achieving a minimum value of 0.59 W⸱m –1 ⸱K –1 at 723 K. Additionally, Fe doping enhances the effective mass, improves the Seebeck coefficient, and significantly boosts the power factor, which reaches a peak value of 43.0 μW⸱cm –1 ⸱K –2 at 623 K. The results demonstrate that the sample Ge 0.885 Sb 0.1 Fe 0.015 Te achieves a maximum zT of approximately 2.13 at 723 K and an average zT ( zT avg ) of 1.43 within the temperature range of 323 K to 773 K. This work provides an effective path to enhance the performance of GeTe-based thermoelectric materials.
研究领域:
材料科学
·
热电学
·
固体物理
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Yu Xin,Shuqing Nie,Shi Pan,Chang Miao,Haoyi Mou,Minyue Wen,Wei Xiao
The SnSb and TiO 2 nanoparticles uniformly embedded into continuous and conductive carbon nanofibers (CNFs) are successfully fabricated through facile electrospinning combined with calcination treatments. The characterization results of the targeted composite nanofibers (Sb-SnSb/TiO 2 @CNFs-2) confirm that the presence of TiO 2 is of significant importance to construct the elaborately designed and intact fiber structure, in which the optimal dosage of the TiO 2 precursor is precisely controlled at 2 mmol. Moreover, high theoretical specific capacity of SnSb, available inhibitory effect of TiO 2 , and great electronic conductivity of CNFs are cooperatively integrated into the Sb-SnSb/TiO 2 @CNFs-2 composite nanofibers, guaranteeing the enhanced lithium storage capacity and cycling performance when being employed as the anode electrodes. Specifically, the Sb-SnSb/TiO 2 @CNFs-2 electrode can not only deliver initial discharge specific capacity of 1146.6 mAh/g at 100 mA/g and reversible discharge specific capacity of 580.4 mAh/g after 100 cycles, but also retain discharge specific capacity of 561.3 mAh/g after rate cycles along with recovering the current density to 100 mA/g. Importantly, the Sb-SnSb/TiO 2 @CNFs-2 electrode is also endowed with prominent advantages in the pseudocapacitive contribution of 66.89 % at 0.8 mV/s. Those investigations and findings of the Sb-SnSb/TiO 2 @CNFs-2 composite electrodes with facile fabrication process and excellent electrochemical performance can contribute to the practical application of the alloy anodes in the field of the energy storage.
研究领域:
材料科学
·
能源存储
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
Nanoscale
·
2018
·Vol. 10
·期 16
·7440-7450
·
IF 7.233
Juanjuan Qi,Ke Chen,Yi Xing,Hua Fan,Hewei Zhao,Jie Yang,Lidong Li,Bingyi Yan,Jing Zhou,Lin Guo,Shihe Yang
Currently, the development of semiconducting metal oxide (SMO)-based gas sensors with innovative modification and three-dimensional (3D) structural designs has become a significant scientific interest due to their potential for addressing key technological challenges. Herein, gas sensing devices based on the 3D hierarchical monoclinic-type structural Sb-doped WO3 (HMSW) gas sensing material were successfully constructed by ordered assembly of urchin-like monoclinic-type structural (P2/m) Sb-doped WO2.72 (W18O49) (UMSW) nanocrystals and nanowires. The crystalline microstructure, composition, morphological characteristics, and possible growth mechanisms were systematically investigated. The results of the gas sensor measurements, performed simultaneously on multiple samples, indicated that the 3D HMSW material has superior sensitivity (S = 122) and high selectivity to ppm-level NO2 at 30 °C with a significantly larger response than the best-reported values from other WO3-based gas sensors fabricated so far. All the results clearly demonstrate that the combined effects of abundant structural defects derived from Sb doping modification, reduced band gap, and 3D hierarchical microstructure synergistically play a key role in the NO2 gas sensing performance. Such excellent gas sensing performance foresees the great potential application of 3D hierarchical structural WO3-based sensors for fast and effective detection of toxic gases that can aid in human health and public safety.
研究领域:
材料科学
·
纳米科技
·
传感器技术
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环境健康
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公共卫生安全
✓ 已验证
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
·
电化学
·
纳米材料
·
能源存储
·
电池技术
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Lifeng Zhang,Yifei Song,Yue Hu,Huan Ruan,Jiaxi Bai,Shuai Li,Yi Liu,Shouwu Guo
Antimony-based electrode materials with conventional slurry-casting process still face great challenges such as tedious preparation process and unsatisfying cycling stability for sodium ion batteries (SIBs). Therefore, the design and fabrication of integrated electrodes with binder-free and even current collector-free are highly significant. Herein, we fabricated flexible Sb/Sb 2 O 3 -C nanofibers (NFs) films utilizing a facile combination of electrospinning technique and carbonization . Sb/Sb 2 O 3 nanoparticles are well embedded in carbon NFs with a fiber diameter of ca. 340 nm. The fabricated NFs films can be directly used as binder and current collector-free anodes for SIBs and exhibited high-capacity and long-lifetime cycles (385.6 mAh g −1 over 500 cycles). Ex situ SEM and TEM observations re-appear their intact fibrous network morphology and stable one-dimensional composite structures after hundreds of discharging-charging cycles, demonstrating that Sb/Sb 2 O 3 -C NFs film is a promising binder-free electrode for SIBs.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
·
电池技术
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 72
·67677-67684
·
IF 3.289
Fuchen Zhang,Hongjun Kang,Yongping Bai,Bo Jiang,Yudong Huang,Li Liu
In this paper, the hydrolysis process of aluminum subacetate (AlSA) was studied by Fourier transform infrared (FT-IR), 27Al nuclear magnetic resonance (NMR), X-ray diffraction (XRD), and particle size distribution analysis, and poly(ethylene terephthalate-co-isophthalate) (PETI) was synthesized by using a compound catalyst made of its hydrolysate, γ-AlOOH, and ethylene glycol stibium (EGSb). Meanwhile, the effects of the γ-AlOOH addition stage on the catalytic effect and the relative properties of the polyester were investigated. The results showed that the Sb and Al compound catalyst had obvious synergistic effects on the process of the polyester polycondensation. With the same dosage of catalyst, the usage of EGSb and the polycondensation time were reduced by 60% and 18.6%, respectively, and the diethylene glycol content in the polyester also decreased by using the compound catalyst, compared with that obtained when only using the EGSb catalyst. The use of γ-AlOOH could play a catalytic role and also shows a unique crosslinking center, which could improve the melting point and glass transition temperature.
✓ 已验证
DOI
高影响因子
Journal of Physical Chemistry C
·
2021
·
IF 4.126
Kaixuan Cui,Fuqiang An,Wang Zhao,Ping Li,Shengwei Li,Chunrong Liu,Xuanhui Qu
Liquid metal batteries are an emerging and promising large-scale electrochemical energy-storage technology, the corrosion of which is a significant issue due to their high-operating temperature environment and an all-liquid structure. Herein, we have comprehensively investigated the corrosion behavior of SS304 in the Sb–Sn alloy under static conditions and cell-cycling conditions. The corrosion mechanism and the battery reaction process are clarified on the basis of electrochemical measurements and ex situ analyses. Fe and Ni of SS304 are considered to dissolve easily in the liquid Sb–Sn alloy rather than Cr, forming the Fe–Ni–Sb–Sn corrosion products. Due to corrosion, changes in the composition of the positive electrode cause an abnormal discharge voltage plateau and capacity fading. The appearance of low-discharge voltage plateau is mainly dominated by the reaction of Fe–Sb with Li. Sn in the positive electrode promotes the diffusion of dissolved elements and accelerates the corrosion of the current collector. This work concludes that Fe- and Ni-based alloys such as stainless steel are not promising positive current collectors of Li||Sb–Sn liquid metal batteries. It enlightens us to further find a conductive and corrosion-resistant protective coating or optimize the composition of the positive electrode.
研究领域:
电化学
·
储能技术
·
材料科学
·
腐蚀工程
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Kaixuan Cui,Ping Li,Wang Zhao,Chunrong Liu,Shengwei Li,Dongmei Zhou,Xuanhui Qu
Li||Sb–Bi–Sn liquid metal batteries (LMBs) have comprehensive advantages of a high energy density , excellent rate capability, low material costs, and high cycle performance. However, the corrosion of the positive electrode to the current collector at high temperatures cannot be neglected over the long term. Here, we investigate the corrosion behavior of SS304 in two types of Sb–Bi–Sn alloys under static and cell cycling conditions. Interestingly, we find that the cell performance of Li||Sb–Bi–Sn LMBs are not affected by corrosion between the positive electrode and stainless-steel current collector. The corrosion products and their participation in the cell reaction process are determined using ex situ analyses and electrochemical measurements. Bi not only inhibits the dissolution of SS304 in Sb–Bi–Sn alloy but also spontaneously promotes the decomposition of Fe–Sb and Fe–Cr–Sb corrosion products during lithiation, releasing the active component Sb, and Sb–Bi–Sn alloy is recovered. Encouragingly, even in the event of corrosion, the cell capacity, efficiency, and cycle stability remain almost unaffected due to this self-healing action of Bi. This study represents a new direction toward inhibiting the corrosion of positive electrode and stabilizing cell performance for practical application and commercialization by alloying.
研究领域:
电化学
·
储能
·
材料科学
·
电池技术
✓ 已验证
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2026
·
IF 3.6
Ying Long,Xuehua Dong,Lin Qi,Lindong Luan,Zichen Ren,Zhien Lin,Guohong Zou
Balancing large birefringence with ultraviolet (UV) transparency remains a central challenge in the development of birefringent crystals. Herein, we report two Sb(III)-based hypophosphites, Sb(H2PO2)2Cl and Sb(H2PO2)2F, and comparatively investigate their crystal structures and optical properties. Single-crystal X-ray diffraction analysis shows that Sb(H2PO2)2Cl crystallizes in a wave-like two-dimensional (2D) layered structure, whereas Sb(H2PO2)2F adopts a 1D chain structure. Optical measurements reveal that Sb(H2PO2)2F exhibits a markedly enhanced birefringence of 0.205 at 546 nm, compared with 0.055 for Sb(H2PO2)2Cl, in good agreement with DFT-calculated values of 0.211 and 0.041, respectively. Meanwhile, Sb(H2PO2)2F retains a wide band gap of 4.81 eV and a short UV cutoff edge of 258 nm, indicating a favorable balance between optical anisotropy and UV transparency. Further structure–property analysis suggests that the enhanced birefringence of the fluoride is closely associated with the more favorable orientational efficiency of the stereochemically active lone pair on Sb3+. These results demonstrate that halogen substitution is an effective approach for tuning optical anisotropy in UV-transparent Sb(III)-based hypophosphites.
✓ 已验证
DOI
高影响因子
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