RARE METALS
·
2025
·
IF 11
Wang Yi,Wang Neng-Ze,Wu Zi-Ang,Liu Jia,Guan Kai-Lin,Zhang Zi-Long,Wan Hou-Zhao,Wang Hao,Sun Dong-Yang,Xie An
Metallic Tin (Sn) is an attractive anode material for aqueous batteries due to its high theoretical capacity, low redox potential and strong corrosion resistance. However, the uneven deposition of Sn and severe interfacial side reactions limit its wide application. Herein, a nanoscale fullerene (C 60 ) coating on a Sn anode has been developed by the physical evaporation deposition technology to eliminate complicated side reactions. This coating improves the homogeneity of the Sn anode surface electric field, and reduces the formation of "dead tin". As a result, the C 60 -coated Sn anode can maintain a low voltage hysteresis cycle for more than 850 h. The aqueous NiO//Sn cell encapsulated by this anode achieves a maximum specific discharge capacity of 79.3 mAh·g −1 at a current density of 1.5 A·g −1 . Moreover, as a proof of concept, we propose an aqueous electrochromic Sn battery, which can realize energy storage and reversibly color switch, yielding favorable optical modulation of about 61.1% at 523 nm. This work has developed a cost-effective and high-reliability interfacial engineering strategy that boosts practical uses of Sn metal electrodes, as well as promotes the application of innovative aqueous rechargeable batteries with electrochromic properties. Graphical abstract
研究领域:
材料科学
·
电化学
·
能源存储
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Min Sun,Guowu Tang,Wangwang Liu,Guoquan Qian,Kaimin Huang,Dongdan Chen,Qi Qian,Zhongmin Yang
Tin selenide (SnSe) exhibits high thermoelectric (TE) performance, which is a promising TE candidate for thermal-electrical energy conversion. In this work, Sn-Se alloy core borosilicate glass-clad fibers with ∼94 μm core and ∼220 μm cladding in diameter were fabricated by a molten core drawing method. X-ray diffraction (XRD) showed the core to be highly crystalline and consist of SnSe and SnSe 2 poly-crystal grains. Based on EPMA measurement, there exists an inter-diffusion process between the core and cladding ions during the fiber drawing. The Seebeck coefficient of the Sn-Se core is −151 μV/K. The electrical conductivity of the Sn-Se core is as high as 6.2 × 10 3 S/m, which is close to that of SnSe single crystals. The demonstration of fibers with TE core materials and the integration with the conventional fiber fabrication technique represents the first step in providing the building blocks for fiber-integrated TE devices.
研究领域:
材料科学
·
能源技术
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DOI
高影响因子
iScience
·
2022
·
IF 6.107
Meng Wang,Yan Zhang,Wenpo Shan,Yunbo Yu,Jingjing Liu,Hong He
The thermal stability of the catalysts is of particular importance but still a big challenge for working under harsh conditions at high temperature. In this study, we report a strategy to improve the thermal stability of the ceria-based catalyst via introducing Sn. XRD, Rietveld refinement, and other characterizations results indicated that the formation of Sn-Co solid solution plays a key role in the thermal stability of the catalyst. The developed ternary 3%Co/Ce 0.5 Sn 0.5 O 2 catalyst not only exhibits outstanding thermal stability and resistance to SO 2 and H 2 O for soot oxidation from diesel vehicle exhaust but also remains extraordinary thermal stability for CO oxidation. Remarkably, even after thermal aging at 1000°C, it still possessed high catalytic activity similar to that of the fresh catalyst.
研究领域:
催化材料
·
环境科学
·
化学工程
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yecheng Qiu,Hao Ma,Jinhua Du,Wei Li,Xiaolong Wang,Yizhe Tian,Xu Mu,Defang Duan,Yingnan Wang
Broom-like CeO 2 /Sn@C nonmagnetic absorbers were rationally designed. • Surface Sn spheres create heterointerfaces and strengthen polarization loss. • An ultrabroad EAB of 9.11 GHz is achieved at 2.57 mm thickness. • RL min reaches −60.68 dB with only 10 wt% absorber loading. • DFT confirms charge redistribution across CeO 2 /C/Sn heterojunctions. Broom-like CeO 2 @C composites with Sn doping and surface modification by metallic Sn spheres are successfully synthesized. At a Ce/Sn ratio of 10:1, metallic Sn spheres precipitate on the surface of CeO 2 /Sn@C. At an annealing temperature of 800 °C and a filler loading of 10 wt%, CeO 2 /Sn@C composite achieves a minimum reflection loss (RL min ) of −60.68 dB and an effective absorption bandwidth (EAB) of 9.11 GHz at a matching thickness of only 2.57 mm. Compared with CeO 2 @C, the conductivity of CeO 2 /Sn@C increases from 0.2407 to 0.5383 S∙m −1 , which lead to a remark improvement in absorption performance. Density functional theory (DFT) calculations are further performed to analyze and verify the electromagnetic wave (EMW) absorption mechanisms. Both experimental and theoretical results confirm that the introduction of metallic Sn substantially improves the microwave absorption properties of CeO 2 @C, rendering it a high-efficiency EMW absorbing material with promising application prospects. The table of contents entry: Broom-like CeO 2 @C composites modified by Sn doping and metallic Sn surface precipitation are constructed through solvothermal synthesis and thermal treatment. The optimized CeO 2 /Sn@C composite exhibits enhanced electromagnetic wave absorption behavior, which is mainly attributed to improved conductivity, interfacial polarization, and multiple scattering effects. Download: Download high-res image (206KB) Download: Download full-size image
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高影响因子
ACS Nano
·
2023
·
IF 17.1
Yu Liu,Mingquan Li,Shanhong Wan,Khak Ho Lim,Yu Zhang,Mengyao Li,Junshan Li,Maria Ibáñez,Min Hong,Andreu Cabot
AgSbSe2 is a promising thermoelectric (TE) p-type material for applications in the middle-temperature range. AgSbSe2 is characterized by relatively low thermal conductivities and high Seebeck coefficients, but its main limitation is moderate electrical conductivity. Herein, we detail an efficient and scalable hot-injection synthesis route to produce AgSbSe2 nanocrystals (NCs). To increase the carrier concentration and improve the electrical conductivity, these NCs are doped with Sn2+ on Sb3+ sites. Upon processing, the Sn2+ chemical state is conserved using a reducing NaBH4 solution to displace the organic ligand and anneal the material under a forming gas flow. The TE properties of the dense materials obtained from the consolidation of the NCs using a hot pressing are then characterized. The presence of Sn2+ ions replacing Sb3+ significantly increases the charge carrier concentration and, consequently, the electrical conductivity. Opportunely, the measured Seebeck coefficient varied within a small range upon Sn doping. The excellent performance obtained when Sn2+ ions are prevented from oxidation is rationalized by modeling the system. Calculated band structures disclosed that Sn doping induces convergence of the AgSbSe2 valence bands, accounting for an enhanced electronic effective mass. The dramatically enhanced carrier transport leads to a maximized power factor for AgSb0.98Sn0.02Se2 of 0.63 mW m–1 K–2 at 640 K. Thermally, phonon scattering is significantly enhanced in the NC-based materials, yielding an ultralow thermal conductivity of 0.3 W mK–1 at 666 K. Overall, a record-high figure of merit (zT) is obtained at 666 K for AgSb0.98Sn0.02Se2 at zT = 1.37, well above the values obtained for undoped AgSbSe2, at zT = 0.58 and state-of-art Pb- and Te-free materials, which makes AgSb0.98Sn0.02Se2 an excellent p-type candidate for medium-temperature TE applications.
研究领域:
材料科学
·
表面化学
·
热电材料
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产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2025
·
IF 11
Han Ya,Yu Ying-Jian
Tin–air batteries (TABs) exhibit high safety and low cost, and are expected to be used in electric vehicles and portable electronic devices. However, challenges such as the irregular deposition of tin (Sn) particles on Sn anodes, surface passivation, and significant hydrogen evolution have hindered the development of high-performance TABs. To address these challenges, this study introduces quasi-solid TABs (QSTABs) with satisfactory high-temperature resistance. A conductive metal–organic framework (c-MOF), particularly Ni 3 (HITP) 2 , was synthesized and deposited onto the Sn anode surface. The porous structure of c-MOF increased the specific surface area of the Sn anode, improved electronic conductivity and facilitated the absorption and release of ions during charge and discharge cycling. Theoretical calculations revealed that Ni 3 (HITP) 2 provided more electron donor sites to coordinate with Sn 2+ and inhibited hydrogen release. Additionally, carboxymethyl cellulose (CMC) was incorporated into the organic gel polymer electrolytes (OGPEs) to significantly enhance their water retention, ensuring stable operation of QSTABs between 25 and 50 °C. Notably, QSTABs assembled with CMC-OGPE/Sn@Ni 3 (HITP) 2 exhibited a fine cycle life of over 200 cycles at 50 °C. The electronic c-MOF material effectively inhibited metal shedding and side reactions on the Sn anode. These findings provide valuable guidance for developing QSTABs with high-temperature resistance. Graphical abstract
研究领域:
储能
·
材料科学
·
电化学
·
电池技术
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DOI
高影响因子
TRIBOLOGY LETTERS
·
2019
·Vol. 67
·期 3
·1-11
·
IF 2.235
Zeng M. Q.,Hu R. Z.,Song K. Q.,Dai L. Y.,Lu Z. C.
An in situ displacement reaction was used to prepare an Al–12 wt% Sn nanocomposite alloy from mechanically alloyed Al–SnO 2 –MgH 2 . The nanoscaled Sn phase was mostly 30–50 nm in size and was distributed uniformly in the Al matrix. The wear properties of the Al–SnO 2 –MgH 2 composite were enhanced significantly compared to those of an Al–Sn–MgH 2 composite. These improvements stemmed from the high-strength and nanoconfined Sn-phase lubrication, which moved the peak stress far below the surface, released strain localization at the uppermost sliding surface layer, and suppressed cracking and surface roughening. The dispersion strengthening of the Al–SnO 2 –MgH 2 composite favored the maintenance of a stable tribolayer, which resulted in an integrated worn surface and an excellent wear performance.
研究领域:
材料科学
·
机械工程
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DOI
高影响因子
Food Bioscience
·
2020
·
IF 3.067
Liang Gao,Xinyi Cheng,Xuwei Yu,Xiaosan Wang,Qingzhe Jin,Xingguo Wang
1-Oleoyl-2-palmitoyl-3-linoleoylglycerol (OPL) is a critical structured lipid in human milk fat and it plays an important role in infants' health. The development of an efficient method for such compound preparation is necessary. In this study, one- and two-step methods for OPL production by enzymatic acidolysis of fractionated palm stearin with mixed acids were compared in solvent-free and solvent systems. The results demonstrated that in the solvent system, the OPL contents by the one- and two-step methods were 45.8% and 56.7%, respectively. In the solvent-free system, the one- and two-step methods resulted in the formation of 43.7% and 54.8% OPL, respectively. Subsequently, acidolysis conditions of the two-step method were optimized. Under the optimum conditions, the content of OPL was 57.7%, and 83.2% of palmitic acid was at the sn-2 position . The prepared OPL has potential to be applied in infant formulas.
研究领域:
食品科学
·
生物化学
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DOI
高影响因子
INORGANIC CHEMISTRY
·
2026
·Vol. 65
·期 35
·20348-20360
·
IF 4.6
Wu Huifang,Zhang Jiaxing,Zhang Tiantian,Khaleel Maryam Tariq,Yan Xin,Zhan Jiayao,Wang Jincong,Guo Qiang,Guo Xinwen,Ren Limin
Hierarchical
Sn-containing self-pillared pentasil (Sn-SPP) zeolites,
with their unique nanosheet intergrowth architecture, are highly attractive
for biomass upgrading. However, direct Sn incorporation is hindered
by kinetic mismatches between Sn and Si. Premature Si–O–Sn
linkages disrupt the ordered nucleation, resulting in sluggish crystallization,
poor Sn integration, and a loosely stacked, unstable structure. Herein,
we report a “sustained Sn release” strategy using tetraethylenepentamine
(TEPA) as a multifunctional additive. TEPA transiently coordinates
Sn species into soluble complexes, creating a sustained-release reservoir
that mediates TEPA-mediated Sn buffering to prevent premature Si–O–Sn
formation and enables silicate preorganization. Simultaneously, TEPA
cotemplates with TBAOH to direct denser nanosheet stacking, reducing
external defects and reinforcing framework integrity. This dual-function
mechanism expands the synthesis window to Si/Sn = 50, shortens crystallization
time from weeks to days, and tolerates reduced structure-directing
agent loadings. The resulting Sn-SPP achieves 75.3% glucose conversion
with 81.1% fructose selectivity in glucose isomerization, outperforming
conventional microporous Sn-MFI. Moreover, it retains >95% crystallinity
and acid site density after harsh steaming. This work establishes
a cotemplating approach for hierarchical zeolites that couples kinetic
regulation of heteroatom speciation with structural control.
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PubMed
高影响因子
EUROPEAN JOURNAL OF DRUG METABOLISM AND PHARMACOKINETICS
·
2022
·Vol. 47
·期 3
·353-361
·
IF 2.569
Wang Zhe,Wang Xiaoyu,Wang Zhen,Fan Xiaoyu,Yan Mingrui,Jiang Lili,Xia Yangliu,Cao Jun,Liu Yong
Background Dabrafenib and irinotecan are two drugs that can be utilized to treat melanoma. A previous in vivo study has shown that dabrafenib enhances the antitumor activity of irinotecan in a xenograft model with unclear mechanism. Objectives This study aims to investigate the inhibition of dabrafenib on SN-38 (the active metabolite of irinotecan) glucuronidation, trying to elucidate the possible mechanism underlying the synergistic effect and to provide a basis for further development and optimization of this combination in clinical research. Methods Recombinant human uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) and human liver microsomes (HLMs) were employed to catalyze the glucuronidation of SN-38 in vitro. Inhibition kinetic analysis and quantitative prediction study were combined to predict drug–drug interaction (DDI) potential in vivo. Results Dabrafenib noncompetitively inhibited SN-38 glucuronidation in pooled HLMs and recombinant UGT1A1 with unbound inhibitor constant ( K i,u ) values of 12.43 ± 0.28 and 3.89 ± 0.40 μM, respectively. Based on the in vitro K i,u value and estimation of kinetic parameters, dabrafenib administered at 150 mg twice daily may result in about a 1−2% increase in the area under the curve (AUC) of SN-38 in vivo. However, the ratios of intra-enterocyte concentration of dabrafenib to K i,u ([ I ] gut / K i,u ) are 2.73 and 8.72 in HLMs and recombinant UGT1A1, respectively, indicating a high risk of intestinal DDI when dabrafenib was used in combination with irinotecan. Conclusion Dabrafenib is a potent noncompetitive inhibitor of UGT1A1 and may bring potential risk of DDI when combined with irinotecan.
研究领域:
药理学
·
肿瘤学
·
临床药学
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DOI
PubMed
高影响因子
BIORESOURCE TECHNOLOGY
·
2021
·
IF 9.642
Jingyuan Shang,Guangbin Fu,Zhenping Cai,Xiang Feng,Yongxiao Tuo,Xin Zhou,Hao Yan,Chong Peng,Xin Jin,Yibin Liu,Xiaobo Chen,Chaohe Yang,De Chen
Valorization of biomass to olefin or aromatics harbours tremendous practical value due to growing concerns about sustainable production of chemicals. Herein, the olefin or aromatics yields of ex-situ catalytic pyrolysis of pine can be regulated by impregnating Sn on hollow-structured ZSM-5 (M-ZSM-5) and microporous ZSM-5 catalysts in fixed-bed reactor, respectively. Results showed that Sn/ZSM-5 catalyst simultaneously increased medium acidic sites and maintained strong acidic sites, which obtained the maximum carbon yield of aromatics (33.77%) due to enhanced cracking and deoxygenation reactions. In addition, Sn boosted alkylation between olefin and aromatics, generating more alkylbenzene. In contrast, Sn/M-ZSM-5 catalyst produced the highest olefins carbon yield (12.39%) because the reduction of strong acidic sites and microporous volume inhibited the olefin aromatization. Moreover, olefins were easier to desorb from Sn/M-ZSM-5 due to the enhanced mass transfer ability, which weakened the alkylation reactions. The synergistic effect harbours great significance to manipulate the distribution of products.
研究领域:
化学工程
·
能源科学
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产品关联
DOI
PubMed
高影响因子
Chem & Bio Engineering
·
2025
·Vol. 3
·期 1
·10-18
·
IF 0
Yang Yingjie,Ma Zixuan,Mei Xiaopeng,Gao Xiaofeng,Song Ziyu,Yao Siyu
Catalytic dehydrogenation of a liquid organic hydrogen
carrier
like methylcyclohexane is considered as a potential solution for hydrogen
transportation storage. Hydrogen production via the catalytic dehydrogenation
of methylcyclohexane (MCH) was performed over a Pt-based catalyst
in a microwave reactor to determine the effective catalyst systems.
It was found that Pt/Al 2 O 3 displayed good MCH
conversion and hydrogen production rates but faced urgent issues including
C–C bond cleavage side reactions and undesirable coke deposition.
After Sn was introduced as a promoter, we explored the optimal ratio
of Sn and its promoter effects. Pt 0.6 Sn 0.6 /Al 2 O 3 showed comparable dehydrogenation activity and
less coke compared with single Pt/Al 2 O 3 . According
to the characterization analysis of XPS, H 2 -TPR and NH 3 -TPD, the Sn promoter induced the formation of the Pt–Sn
alloy and masked the medium and strong acidic site of Al 2 O 3 . Excessive Sn loading enhanced the formation of Sn
rich alloy, which explains the reduced catalytic activity and stability.
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