JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Zhangxing He,Yingqiao Jiang,Jing Zhu,Yuehua Li,Zhen Jiang,Huizhu Zhou,Wei Meng,Ling Wang,Lei Dai
In this paper, LiTi 2-x Sn x (PO 4 ) 3 /C (x = 0, 0.2, 0.3, 0.4) composites were synthesized by sol-gel approach, and were investigated as anodes for aqueous lithium ion battery . Sn doping with proper content has no obvious influence on phase and morphology of the composite, while excessive dosage of Sn can affect its crystal structure. Sn doping can enhance the electrochemical properties of LiTi 2 (PO 4 ) 3 /C (LC). Among LiTi 2-x Sn x (PO 4 ) 3 /C composites, LiTi 1.7 Sn 0.3 (PO 4 ) 3 /C (LC-Sn-0.3) demonstrates the best electrochemical properties. Most importantly, the rate performance of LC can be improved dramatically by Sn doping on Ti sites. LC-Sn-0.3 delivers a discharge capacity of 118.9, 115.3, and 104.2 mAh g −1 at 0.2, 6, and 20 C (1 C = 150 mA g −1 ), respectively, with significant increase of 15.2, 27.4, and 41.9 mAh g −1 compare with LC. In addition, LC-Sn-0.3 exhibits superior cycling performance. The capacity retention for LC-Sn-0.3 can keep 76.8% after 1000 cycles at relatively high rate of 10 C, while only 51.7% of initial discharge capacity is retained for LC. Our study reveals that Sn doping on Ti sites is an efficient and facile method to improve the performance of LiTi 2 (PO 4 ) 3 /C composite for aqueous lithium ion battery.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
RARE METALS
·
2023
·Vol. 42
·期 5
·1557-1569
·
IF 8.8
Liu Yan-Ru,Lei Ze-Wei,Liu Ren-Ping,Li Xin-Ye,Xiong Pei-Xun,Luo Yong-Jin,Chen Qing-Hua,Wei Ming-Deng,Zeng Ling-Xing,Qian Qing-Rong
At present, there have been some reports on the application of metal phase selenide (1T-MSe 2 ) in the field of energy storage. In this manuscript, a stable Sn-doped metal phase tungsten selenide (1T-WSe 2 -Sn) was elaborately fabricated in situ by a simple calcination technique. N-doping was introduced by employing chitosan as precursor and nanoreactor, the Sn-doping induces 1T phase of WSe 2 and enlarges the layer space to promote the electron/ion transport and structural stability. The optimized 1T-WSe 2 -Sn electrode delivers prominent cycling lifespan (285 mAh·g −1 at 1.0 A·g −1 after 900 cycles) along with decent rate capability when applied as an anode of sodium ion batteries (SIBs). The specific capacity was determined to be of 460 mAh·g −1 at 0.1 A·g −1 after 100 cycles. It also displays superior capacity of 183 mAh·g −1 at 0.5 A·g −1 for 200 cycles when paired with Na 3 V 2 (PO 4 ) 3 cathode. Applied as the anode for potassium ion batteries (PIBs), it exhibits a satisfactory specific capacity of 345 mAh·g −1 at 0.1 A·g −1 after 50 cycles. Graphical abstract
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2022
·
IF 4.598
Yuting Zhong,Zhirui Wu,Xiaoguang Liu,Ling Li
The combination of multi-metallic alloys and support materials is a promising approach for the design of electrocatalysts. In this study, Pd-M (M = Fe, Sb, Pb, Sn, Ag) bimetallic alloys embedded composites of 2D Ca-based metal–organic framework (Ca-MOF) nanosheets and reduced graphene oxide (rGO) were fabricated by a facile hydrothermal and impregnation reduction method, then applied as ethylene glycol oxidation reaction (EGOR) electrocatalysts. Remarkably, the forward peak current density of the best catalytic performer PdAg@rGO/Ca-MOF is as high as 258.30 mA cm −2 , which is 9.55 times greater than that of Pd/C. It also exhibits the biggest electrochemical active surface area of 3022.51 m 2 g −1 . After 3600 s chronoamperometry test, the retained current density of PdAg@rGO/Ca-MOF is about 87.94 % of the initial current density. These results imply that bimetallic Pd-M@rGO/Ca-MOF have superior electrocatalytic activity and anti-CO poisoning capacity compared to monometallic and Pd/C for EGOR, especially PdAg@rGO/Ca-MOF. The enhanced EGOR performance is due to the combined effect of Pd-M alloys and folded thin layer wrapped nanosheet rGO/Ca-MOF composites.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
DOI
高影响因子
SURFACE AND INTERFACE ANALYSIS
·
2014
·Vol. 47
·期 3
·403-412
·
IF 1.393
S. Fashu,C. D. Gu,J. L. Zhang,W. Q. Bai,X. L. Wang,J. P. Tu
With the aim of obtaining high corrosion resistant Zn–Sn alloy coatings from an ionic liquid, the effects of electrodeposition potential and electrolyte composition on the electrodeposition behavior, film composition, morphology and corrosion performance were investigated. Cyclic voltammograms indicate that Zn and Sn were co-deposited at distinct reduction potentials as pure Zn and Sn elements. In addition, the phase composition analysis also showed that the obtained Zn–Sn alloy deposits (8 wt.%–45 wt.% Zn) consist of a two-phase mechanical mixture of small aggregates of Zn and Sn metals. The Zn content of the alloy significantly increases as the electrodeposition potential and electrolyte Zn (II)/Sn (II) ratio increase. The corrosion performance study of the obtained Zn–Sn coatings showed that they have a passivation behavior and their corrosion resistance increases as the alloy-Sn content increases. To improve their morphological properties, ethylene diamine tetraacetic acid additive was introduced into the electrolyte and greatly improved the morphology and corrosion resistance of the deposits. For the first time, it was shown that high corrosion resistance Zn–Sn coatings can be obtained from ionic liquids. Copyright © 2014 John Wiley & Sons, Ltd.
研究领域:
材料科学
·
电化学
·
腐蚀工程
·
表面涂层
·
离子液体
✓ 已验证
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Chenfei Xiang,Xiuping Wu,Yanjie Zhang,Zihan Zhao,Desheng Li,Hao Song,Bing Li
White light with excellent color rendering property has been highly required for comfortable and healthy illumination. A facile strategy to achieve high color rendering index (Ra >90) in practical applications is using near ultraviolet chips as excitation sources combined with RGB phosphors. However, achieving high color rendering with both blue chips and near-ultraviolet (NUV) chips for commercial phosphors dispersed in phosphor-in-glass (PiGs) materials is still a big challenge. In this work, the PiG based on the ultra-low melting point Sn–F–P–O glass with commercial green (Lu 3 Al 5 O 12 :Ce 3+ ) and red (Sr x Ca 1-x AlSiN 3 :Eu 2+ ) phosphors has been successfully fabricated by one-step sintering method. The phase identification and distribution of monochromatic red phosphor in glass (R-PiG) and green phosphor in glass (G-PiG) were investigated in detail. The Sn 2+ ions in Sn–F–P–O matrix show the intense blue emission bands centered at 420 nm under the excitation of NUV chips (365 nm). Notably, the polychromatic red/green phosphor in glasses (R/G-PiGs) are versatile and exhibited excellent color rendering (Ra = 93, Ra = 95, Ra = 92, respectively) properties excited by both blue chips, NUV chips and laser diodes (WLD). The working temperature of R/G-PiGs is stable at ∼33 °C and ∼55 °C when employed in WLEDs/WLDs (1 W), which greatly prevented the phenomenon of “thermal quenching” for the phosphors caused by high temperature. Thus, the versatile R/G-PiG with ultra-high color rendering and excellent thermal properties indicates its promising application in high-power white LEDs/LDs.
研究领域:
材料科学
·
光电子学
·
固态照明
·
荧光粉技术
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Feiyang Yan,Huan Liu,Jing Wan,Xueping Sun,Jiahuan Luo,Yan Wang,Shixiong Sun,Junwei Lang
Sodium metal batteries (SMBs) are regarded as promising candidates for next-generation energy storage technologies due to their high energy density and low cost yet remain challenging owing to dendritic sodium deposition, unstable electrode–electrolyte interfaces, and sluggish ion transport, particularly under fast-charging conditions or at low operating temperatures. To address these challenges, in this study, we introduce Sn-Zn atomic configured porous, nitrogen-rich carbon-based meta-material (SA-NCS), derived from a guanine-based hydrogen-bonded organic framework (HOF), serving as sodium host material for SMBs, which provides a high density of atomic sodiophilic sites to promote the transition from one-dimensional dendritic deposition to two-dimensional planar-oriented dense plating, and features programmable nano-to-macro functional structures capable of effectively accommodating the anodic volume fluctuation induced by sodium plating and stripping. SA-NCS@Cu current collector exhibits an ultralow nucleation overpotential of 22 mV even at a high current density of 20 mA cm −2 and delivers exceptional cycling stability, enabling stable operation for 2000 h at 10 mA cm −2 with Coulombic efficiencies exceeding 99.9%. Moreover, the SA-NCS @Cu current collector based anode-less sodium metal batteries demonstrate a superior fast-charging capability and long-term cycling stability at −20°C. This study presents a practical design for sodium hosts, enabling high-performance SMBs.
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DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Haijiao Kong,Han Zhao,Zhenbao Zhang,Yu Zhang,Junjie Zhu,Qinglin Li,Heqing Jiang,Jiawei Zhu
Electrocatalytic CO2 reduction to formic acid is a promising route for mitigating CO2 emissions and producing value-added chemical feedstocks. However, achieving industrially relevant activity and stability in acidic media remains challenging due to severe hydrogen evolution, catalyst corrosion, and structural degradation. Herein, we report a rare–earth yttrium-doped SrSnO3 perovskite oxide (SrSn0.7Y0.3O3) synthesized via a solid-state reaction method. The incorporation of YO6 octahedra induces in situ electrochemical reconstruction of SnO6 units into metallic Sn, leading to the formation of strong YO6–Sn interfacial interactions that modulate the electronic structure of Sn active sites and enhance their structural stability. The optimized reconstructed catalyst, denoted as c–SrSn0.7Y0.3O3, delivers a Faradaic efficiency of over 90% for formic acid at an industrially relevant current density of 200 mA cm-2 under acidic conditions, while maintaining outstanding operational durability for over 180 h without observable performance decay. Mechanistic investigations reveal that the strong interaction between in situ generated metallic Sn and YO6 units effectively suppresses Sn dissolution and crystal structural collapse, thereby ensuring long-term stability in acidic media. This work demonstrates a rare-earth doping and electrochemical strategy that achieves a well-integrated balance of activity, selectivity, and stability, offering a promising pathway for advancing acidic CO2 electroreduction toward industrial application.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Jiawen Wu,Yujie Xie,Fangyi Shen,Tiangong Cheng,Zhongcai Wu,Chujun Wang,Yizhi Liu,Yongzhen Feng,Hui Zheng
Conventional solid-state sintering of M-type hexaferrites requires high temperatures and long durations yet often yields inadequate density and coarse grains, limiting functional performance. This limitation is overcome by hot pressing, which applies uniaxial pressure synergistically with a transient liquid phase. This strategy enables rapid densification at a substantially lower temperature of 975 °C, in contrast to over 1100 °C for conventional methods. The resulting ceramics achieve near theoretical density exceeding 98% (98.03-98.22%), a fine-grained uniform microstructure, and superior structural integrity ( R wp = 2.50-2.83%), properties unattainable by standard sintering. The hot-pressing process also leads to oxygen vacancy reorganization. Consequently, the materials exhibit comprehensively enhanced properties: the optimal composition achieves a high coercivity of 1672.8 Oe, and low dielectric loss (ε″ ≈ 0.93 at 1 MHz) with excellent temperature stability (Δε' as low as 9.23). This work establishes hot pressing as a superior alternative and elucidates the underlying pressure assisted densification and valence modulation mechanism, providing a new design principle for engineering high performance microwave ferrites.
✓ 已验证
DOI
高影响因子
Science Advances
·
2022
·Vol. 8
·期 10
·
IF 14.957
Huan Yu,Yinxiang Zeng,Nian Wu Li,Deyan Luan,Le Yu,Xiong Wen (David) Lou
We developed a three-dimensional hybrid fiber host consisting of interconnected N-doped hollow carbon spheres embedded with Sn nanoparticles (denoted as Sn@NHCF) for Zn metal anodes in high-performance Zn metal batteries. Experimental observations and density functional theory calculation reveal that the zincophilic Sn nanoparticles and N-doped carbons enable the homogeneous Zn deposition on the interior and exterior surfaces of the hollow fibers. Moreover, the hierarchical hollow fiber network effectively reduces the structural stress during the plating/stripping process. As a result, the developed Sn@NHCF host exhibits remarkable electrochemical properties in terms of high Coulombic efficiency, low voltage hysteresis, and prolonged cycling stability without dendrite formation. Moreover, a full cell based on the designed Sn@NHCF-Zn composite anode and a V2O5 cathode demonstrates superior rate capability and stable cycle life. This work provides a new strategy for the design of dendrite-free Zn anodes for practical applications.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Yu Chen,Long Li,Jinfeng Huang,Jinwei Hong,Qiaocong Zhang,Wenjian Chen,Deyu Qu,Dan Liu
All-solid-state lithium batteries (ASSLBs) with sulfide electrolytes and high-capacity alloy anodes are among the most promising technologies for achieving high safety and energy density. Herein, we demonstrate a slurry-coated sheet-type electrode consisting of a 99.8 wt % Si–Sn hybrid active material and a 0.2 wt % single-walled carbon nanotube (SWCNT) binder, which could be used as a superior anode in ASSLBs. Compared to the typical composite powder electrode, the sheet-type Si–Sn electrode is free of electrolytes and extra carbon additives, enabling higher energy density at the electrode level but dominantly depending on Li+ diffusion and electron transport within the Si–Sn active material. It is identified that the lithiated Si–Sn hybrid is an excellent mixed ion-electron conductor that overcomes insufficient electronic or ionic conductivities of lithiated Si and Sn individuals. In addition, using SWCNT instead of ordinary polymer binders can improve electrode integrity and preserve electrical connections during cycling. When paired with a LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode (a mass loading of 11.3 mg cm–2), the Si–Sn–SWCNT||NCM811 full cell shows stable cycling for more than 200 cycles at 0.5C with a capacity retention of 85.9%. Even at a high NCM811 loading of 36.4 mg cm–2, the full cell exhibits a considerable capacity retention of 85.0% (50 cycles, 0.1C) and a maximum areal capacity of 5.8 mAh cm–2. This work provides an industry-compatible method to produce high-performance alloy anodes for ASSLBs.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Jianzhi Huang,Xinrong Guo,Xinjian Huang,Lishi Wang
Herein, mesoporous hollow kapok-tubes (denoted as MHKTs) is first used as carbon electrocatalyst for CO 2 electroreduction that can selectively convert CO 2 to formate without doping active elements, achieving the highest Faradaic Efficiency (FE) for formate at a potential range from −1.0 to −1.1 V vs. RHE (E = −1.0 V, FE = 48%; E = −1.1 V, FE = 50%). Moreover, MHKTs is also first used as new carbon support for loading metals in CO 2 electroreduction, metals (Sn, Bi, Pb and Cd) in-situ anchored on MHKTs are all prepared via in-situ simple one-pot synthetic strategy. The four electrocatalysts Sn@MHKTs (E = −0.9 V, FE = 94%; E = −1.0 V, FE = 95%; E = −1.1 V, FE = 90%), Bi@MHKTs (E = −0.9 V, FE = 90.5%; E = −1.0 V, FE = 93%; E = −1.1 V, FE = 92%), Pb@MHKTs (E = −1.0 V, FE = 85%; E = −1.1 V, FE = 80%) and Cd@MHKTs (E = −0.9 V, FE = 71%; E = −1.0 V, FE = 74%; E = −1.1 V, FE = 70%) all exhibit high selectivity for electrocatalytic CO 2 to formate at a wide potential range with low overpotential and high current density , respectively outperforming electrocatalysts synthesized under the same conditions that use traditional MWCNTs and rGO as carbon support (Sn@MWCNTs, Bi@MWCNTs, Pb@MWCNTs, Cd@MWCNTs; Sn@rGO, Bi@rGO, Pb@rGO, Cd@rGO). These outstanding performances of low cost metal@MHKTs electrocatalysts display great potential for large-scale using in CO 2 -to-formate process.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Food Bioscience
·
2026
·
IF 6.2
Lin Zhu,Mingzhe Deng,Hong Zhang,Zhenbo Xu,Peijin Tong,Jianchun Wan,Boyan Gao,Liangli (Lucy) Yu,Yaqiong Zhang
A 6-month intervention in aged male C57BL/6J mice suggested that dietary sn-2 palmitate-enriched triacylglycerols (sn-2 PTAG) dose-dependently ameliorated high-fat diet-induced metabolic deterioration. The higher sn-2 PTAG doses (59.15% and 75.79%) significantly reduced liver weight, hepatic steatosis, adipocyte hypertrophy, serum total cholesterol and LDL-c levels. Mechanistically, sn-2 PTAG enhanced intestinal fatty acid absorption via upregulating transporters CD36 and FATP4, while suppressing hepatic de novo lipogenesis through downregulation of the key transcription factor SREBP-1c. Concurrently, it stimulated adipose tissue remodeling, characterized by the activation of lipolysis through elevated ATGL and the induction of thermogenesis via upregulation of PGC1α and UCP1. Crucially, sn-2 PTAG reshaped bile acid metabolism by enhancing hepatic synthesis, as evidenced by the upregulation of CYP7A1 and CYP8B1, which led to elevated levels of cholic acid and its taurine-conjugated form, taurocholic acid. This was accompanied by an altered intestinal bile acid profile, marked by increased concentrations of taurocholic acid and deoxycholic acid. These metabolic shifts were paralleled by reduced levels of FXR and FGF15, and increased level of TGR5, which may be associated with suppression of the FXR-FGF15 axis and activation of TGR5 signaling. Collectively, sn-2 PTAG may contribute to the regulation of the bile acid-mediated gut-liver-adipose axis, which is associated with dual modulation of cholesterol clearance and energy dissipation pathways, thereby offering a potential structural lipid-based strategy against age-related dyslipidemia. Our findings provided a scientific basis for developing structured dietary lipids as functional foods against age-related metabolic syndrome.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）