ADVANCED POWDER TECHNOLOGY
·
2022
·
IF 4.969
Zhiwei Wang,Mingqiang Cheng,Jiaojiao Bu,Lei Cheng,Juanjian Ru,Yixin Hua,Ding Wang
Tin is one of the vital substances in the material and chemical industry. Deep eutectic solvent (DES) possesses excellent physicochemical properties for metal preparation. In this study, the electrochemical behavior of Sn(II) and metallic tin preparation in choline chloride-ethylene glycol (ChCl-EG) DES were investigated. Linear sweep voltammetry is carried out to study the effects of substrate material (Ni, Cu, Pt, C, Fe, Al, W, glassy carbon (GC) and Ti), temperature (313–353 K) and SnCl 2 concentration (10–100 mM) on the electrochemical behavior of Sn(II)/Sn. Results demonstrate that metallic tin is easier to be prepared on the Ni electrode, and increasing temperature and SnCl 2 concentration both facilitate the reduction of Sn(II). Electrospray ionization mass spectrometry (ESI-MS) shows that the main form of Sn(II) is [SnCl 3 ] - . Chronoamperometric tests indicate that with the increase of applied potential, the nucleation of Sn(II) on the nickel electrode becomes close to the instantaneous nucleation. Simultaneously, the nucleation rate and the number of active sites on the electrode surface increase significantly. Pure tin with a dendritic structure could be prepared with higher current efficiency of 96.4% and lower energy consumption of 320.5 kW·h·t −1 without any additives. All these studies provide a fundamental basis for the preparation of tin powders in ChCl-EG DES.
研究领域:
材料科学
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电化学
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DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 52
·期 4
·1021-1029
·
IF 4.569
Haiming Cheng,Chi Cao,Shiyong Teng,Zhinan Zhang,Ying Zhang,Dayang Wang,Wensheng Yang,Renguo Xie
Low-dimensional organic–inorganic hybrid halides, as an important branch of metal halide materials, have attracted much attention due to their excellent photoelectric properties. Herein, we designed one new hybrid cadmium chloride [C5H14NO]CdCl3 based on combinations of the d10 metal cation (Cd2+) and choline chloride molecules. [C5H14NO]CdCl3 single crystals belong to the orthorhombic Pna21 space group and show a one-dimensional (1D) structure with distorted [CdCl5O]5− octahedra. The second harmonic generation (SHG) response of [C5H14NO]CdCl3 exhibits an intensity of approximately 0.4 × KDP. Moreover, the photoluminescence properties of the [C5H14NO]CdCl3 crystal are activated by doping with Sn2+ ions having stereochemically active lone pair 5s2 electrons. Under UV excitation conditions, bright greenish-yellow light emission can be observed, and the quantum efficiency (PLQY) is as high as 91.27%. The luminescence mechanism is revealed by combining the results of temperature dependent luminescence and density functional theory (DFT) calculation. This work can serve as a guide for the design and synthesis of emerging optical materials.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2021
·Vol. 41
·期 2
·406-414
·
IF 4.003
Jiang Xiao-Huan,Duan Ying-Nan,Tian Yu,Chen Meng,Li Mao-Kun,Liu Huan-Huan,Yang Wan-Liang,Tian Meng-Kui
In this paper, a visible light-responsive Sn 2+ and N co-doped TiO 2 photocatalyst was prepared by facile one-pot hydrothermal method. All as-prepared samples were characterized in detail by a series of characterization approaches. The results showed that the Sn 2+ and N elements were co-doped into TiO 2 , while the catalyst still maintains anatase crystal structure and gets irregular little nanocluster in diameter of 9–10 nm with higher specific surface area. The absorption edge of Sn 2+ and N co-doped TiO 2 extends to the visible light region. Compared with Sn 2+ -doped TiO 2 and N-TiO 2 , the absorption edges have obvious red-shift of about 50 and 70 nm, respectively. The synergistic effect of O 2p-N 2p and O 2p-Sn 5s hybridization to form impurity levels is the main reason for the red-shift. The hydrogen production performance of the Sn 2+ and N co-doping TiO 2 ( n (N)/ n (Ti) = 1) catalyst reached the maximum value of 0.37 mmol·h −1 ·g −1 under visible light, which is higher than that of N-doped TiO 2 and Sn 2+ -doped TiO 2 singly. This result is due to the wider visible light region-responsive ability of Sn 2+ and N co-doped into TiO 2 . Furthermore, mild hydrothermal methods will not make the Sn 2+ oxidized to Sn 4+ , which make the catalysts still maintain high photocatalytic performance. This work provides a simple and mild method for the preparation of dual-element co-doped TiO 2 with high crystallinity, excellent performance and broad application prospects. Graphic abstract
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 28
·17212-17221
·
IF 3.361
Haining Song,Yifei Zhou,Zexin Li,Haifeng Zhou,Fenglei Sun,Zhenlei Yuan,Peng Guo,Guangjun Zhou,Xiaoqiang Yu,Jifan Hu
Dual-function and multi-function sensors can use the same material or detection system to achieve the purpose of detection of two or more substances. Due to their high sensitivity and specificity, dual-function and multi-function sensors have potential applications in many fields. In this article, we designed a dual-function sensor to detect Sn(II) and ascorbic acid (AA) based on the inner filter effect (IFE) between NaYF4:Yb,Er@NaYF4@PAA (UCNPs@PAA) and Fe(II)–1,10-phenanthroline complex. Fe(II)–1,10-phenanthroline complex has strong absorption in most of the ultraviolet-visible light range (350 nm–600 nm), and this absorption band overlaps with the green emission peak of UCNPs@PAA at 540 nm; Fe(II)–1,10-phenanthroline complex can significantly quench the green light emission of UCNPs@PAA. When Sn(II) or AA is added to the UCNPs@PAA/Fe(III)/1,10-phenanthroline, they can reduce Fe(III) to Fe(II). Fe(II) can react with 1,10-phenanthroline to form an orange complex, thereby quenching the green light emission of UCNPs@PAA. And the quenching efficiency is related to the concentration of Sn(II) and AA; there is a linear relationship between quenching efficiency and the concentration of Sn(II) and AA, within a certain concentration range the detection limits of this dual-function sensor for Sn(II) and AA are 1.08 μM and 0.97 μM, respectively. In addition, the dual-function sensor can also detect Sn(II) and AA in tap and spring water.
研究领域:
分析化学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Ling Li,Huan Li,Lin Shi,Lili Shi,Tao Li
As the oxidative stress is related to human aging and many diseases, a diversity of antioxidant biomimetic enzymes to eliminate reactive oxygen species in vivo and maintain the redox balance has attracted intensive attention. Of particular interest are superoxide dismutase (SOD)-mimicking artificial enzymes that bear inherent characteristics of natural counterparts but overcome their deficiencies in thermal and acidic stability. Inspired by the metallized active center of natural SODs, here, we engineered different groups of metalloporphyrins and found that Sn-metallized porphyrins can act as novel SOD mimics, in which Sn-metallized meso-tetra(4-carboxyphenyl) porphine (Sn-TCPP) can more effectively catalyze the disproportionation of superoxide radical anions (•O2–) into hydrogen peroxide and oxygen. Especially, Sn-TCPP-based metal–organic frame nanozyme (Sn-PCN222) displays an unusually high catalytic activity that remarkably exceeds those of commonly used counterparts. Such unprecedented catalytic behaviors are proposed to depend on the Sn(IV)/Sn(II) transition at the center of Sn-TCPP. In addition, the metal–organic framework (MOF) nanozymes also display higher thermal and acidic stability than natural SODs. Interestingly, we find that Sn-complexed methylated tetra-(4-aminophenyl) porphyrin shows an aggregation-induced SOD activity in an acidic environment, whereas conventional SOD mimics do not function well in this case. Given these unique features, our reported Sn-porphyrin-based nanozymes would be potent alternatives for natural SODs to be widely used in clinical treatments of oxidative stress-related diseases.
研究领域:
生物化学
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医学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Journal of Physical Chemistry C
·
2026
·
IF 3.4
Zhixiong Yao,An Hou,Jiawei Lin,Zhongnan Guo,Jing Zhao,Quanlin Liu
Lead-free organic–inorganic metal halides (OIMHs) with robust zero-dimensional (0D) frameworks are highly attractive for practical optoelectronic applications. Here, we propose a precursor-engineering strategy using the organic molecule C15H15N to stabilize Sn-based metal halide thin films. Four 0D OIMHs were synthesized via a solution method, namely, (C15H16N)4SnCl6, (C15H16N)2SnBr6, (C15H16N)6BiBr9·2H2O, and (C15H16N)3(C2H8N)BiBr7·H2O, all adopting 0D structures. (C15H16N)4SnCl6 exhibits excitation-dependent multichannel photoluminescence: under 370 nm excitation it shows blue–white emission, whereas 306 nm excitation yields two bands at 410 and 750 nm, indicating multiple emissive centers. Time-resolved photoluminescence and density functional theory calculations reveal distinct emissive channels from the organic cation and Sn2+ centers, evidencing excitation-controlled redistribution among singlet and triplet manifolds within the rigid 0D framework. (C15H16N)4SnCl6 shows excellent stability and optical properties, and when combined with polymers to form composite films, its excitation-dependent luminescence offers a highly promising route for information encryption.
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 35
·15740-15748
·
IF 7.6
Zhao Yaqi,Qu Hongbo,Cao Jinpeng,Song Haonan,Liu Bo,Zhang Feifei
Acidic tin-based redox flow batteries (RFBs) represent a promising alternative to vanadium systems owing to their low cost, elemental abundance, and superior resistance to the hydrogen evolution reaction. However, nonuniform Sn electrodeposition and low active-material solubility severely impede their practical implementation. Herein, a heterogeneous nucleation strategy is proposed to regulate interfacial deposition by deliberately introducing dispersed SnSO 4 nanoparticles into concentrated sulfuric acid. Dynamic light scattering (DLS) confirms the formation of uniform colloidal seeds at an optimal precursor concentration of 0.3 M. Acting as in situ heterogeneous nucleation sites, such dispersed particles enable highly conformal and adherent Sn plating across carbon felt electrodes, strongly contrasting the localized agglomeration inherent to conventional homogeneous electrolytes. Coupled with a Mn 2+ /Mn 3+ posolyte, the resulting acidic Sn–Mn flow battery (TMFB) delivers exceptional stability, operating continuously for over 440 h at an areal capacity of 20 mAh cm −2 . Furthermore, the battery achieves an impressive average energy efficiency of 81.86% at 80 mA cm −2 alongside a remarkable peak power density of 346.05 mW cm −2 , outperforming most previously reported acidic RFBs. This work successfully transforms undissolved solid species into functional nucleates, establishing a general design principle for high-energy-density, cost-effective aqueous energy storage.
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产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Kai Jin,Yu-Tong Yang,Yu Xia,Xiao-Yu Rong,Xin Chen,Lei Huang,Chun-Hao Chen,Jing Chen,Kai-Li Wang,Zhao-Kui Wang
Tin halide perovskites (THPs) suffer from low stability due to the easy oxidation of Sn (II). Although traditional reduction strategies effectively inhibit the oxidation of Sn (II), the gradual depletion of reducing agents during continuous device operation significantly weakens their antioxidative capacity, thereby limiting the long-term stability of the device. Herein, a regenerative redox cycling strategy utilizing 4-mercaptobenzoic acid (4-MBA) is proposed. Under operational conditions, UV irradiation enables 4-MBA regeneration, which concurrently drives continuous Sn (IV)-to-Sn (II) reduction and facilitates dual-site defect passivation, significantly enhancing device efficiency and stability. Ultimately, an excellent efficiency of 15.15% is achieved and maintained 100% of the initial efficiency for 1100 h in a simulated day–night cycle maximum power point tracking (MPPT) test. This work provides a sustainable reduction strategy that effectively addresses the long-term stability issue of tin perovskite photovoltaic cells.
研究领域:
材料科学
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光伏技术
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纳米材料
·
能源化学
·
半导体物理
·
功能材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Wang Xinhao,Wu Zelin,Huang Bingkun,Yang Lei,Tian Tao,Li Xuning,Xiong Zhaokun,Lai Bo
Selective oxidation-driven pollutant polymerization enables simultaneous contaminant removal and carbon recovery, yet current catalysts suffer from competitive adsorption between pollutants and oxidants, disrupting redox balance and causing premature termination. Herein, we present a microenvironment-decoupled strategy by anchoring atomically dispersed Sn on amino-functionalized carbon nanotubes (CNT−NH 2 ). Amino preferentially stabilizes Sn as Sn(II)−N 4 , which selectively activates peroxydisulfate (PDS) by forming a bidentate Sn–PDS complex and sustains an electron-transfer-dominated pathway. Meanwhile, the carbon surface enriches phenolic substrates and sustains their para -C–O polymerization transfer. In situ spectroscopy and density functional theory identify Sn 5 p –O 2 p interactions as the origin of this unique selectivity. As a result, the SnPc/CNT−NH 2 /PDS system maintains over 95% phenol removal after five cycles (versus one cycle for CNT) and achieves ~82% total organic carbon removal (versus ~46% for CNT). A decoupled reactor further demonstrates the practical feasibility of this mechanism for continuous water purification. This work provides a microenvironment-decoupled paradigm for precise oxidation regulation toward sustainable pollutant polymerization transfer in water purification.
✓ 已验证
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2023
·
IF 10.7
Zhenfeng Huang,Huixin Xie,Tingting Hu,Jiarui Zeng,Xiaofei Tian,Zhenqiang Wu
Natural Monascus yellow pigments (MYPs) have received considerable attention due to their great safety and biological activities, but their unsatisfactory color tonality and stability limit their applications. A novel encapsulate system for hydrophilic yellow pigments (HYPs) were investigated through stable ternary nanocomplexes using quercetin-Sn (II), bovine serum albumin (BSA), and chitosan (CS) in this work. Layer-by-layer assembly preparation of HYPs-loaded quercetin-Sn (II)-BSA-CS nanocomplexes were verified by fluorescence spectroscopy, fourier transform infrared spectroscopy , X-ray photoelectron spectra, and 1 H nuclear magnetic resonance. A hyperchromic effect on HYPs was obtained since their maximum ultraviolet absorption wavelength redshifted from 352 nm to 364 nm first due to the interaction with quercetin-Sn (II) and further redshifted to 408 nm due to ternary conjugation, greatly improved the color tonality and dye-uptake. The HYPs-loaded nanocomplexes showed irregular glomerate nanosphere with 252–382 nm of particle size. Their conjugation remitted HYPs degradation under various environmental stresses (thermal, light, and ascorbic acid treatment), and had a great color stability response to pH change. Higher lipid-lowering and antioxidant activities were detected in the nanocomplexes than free HYPs. This study provides a new way for fabricating novel MYPs with great physicochemical stability, bright color and hypolipidemic activities.
研究领域:
食品科学
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材料科学
·
生物技术
·
药学
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产品关联
DOI
高影响因子
Nanoscale
·
2021
·Vol. 13
·期 36
·15285-15291
·
IF 7.79
Xiaoyu Wang,Qibin Shen,Yansong Chen,Nasir Ali,Ziyang Ren,Gang Bi,Huizhen Wu
The toxicity of Pb in conventional perovskites impedes the commercialization of their optoelectronic devices. Therefore, the search for comparable Pb-free perovskites is vital and needs urgent attention. Herein, for the first time, we successfully synthesize the Sn(II)-doped Pb-free zinc-based perovskite variant Cs2ZnCl4. The influence of doping is investigated both experimentally and theoretically. Broad bright red emission with a large Stokes shift is observed and attributed to the self-trapped exciton (STE) emission of the doped disphenoidal [SnCl4]2− units in the host matrix, from 3P1 to 1S0. Temperature-dependent photoluminescence (PL) shows a peak split at cryogenic temperature, which is ascribed to the Jahn–Teller effect of the 3P1 state. Theoretical study reveals that the impurity states of Sn2+ shrink the bandgap and localize the band edges, and distortion of [SnCl4]2− under excitation ultimately leads to the STE emission. This work is significant for STE emission studies and will pave a way for Pb-free perovskite variants in illumination applications.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Saudi Chemical Society
·
2024
·
IF 5.8
Qiuyun Zhang,Xingyue Hong,Jiao Lei,Yanting Lei,Yigang Yang,Jingsong Cheng,Yulin Hu,Yutao Zhang
Facilitating energy resource deficiency and environmental contamination, this work focuses on sustainable biodiesel production through the esterification reactions of oleic acid (OA) with methanol. To address the reaction, a novel heterogeneous acid catalyst, 12-tungstophosphoric acid (TPA) immobilized on Sn-based MOFs (Sn(II)-BDC) was synthesized via a simple, green solvent, and easy-to-implement synthesis strategy for the first time, and applied effectively for esterification process of OA to produce biodiesel. The structure and composition of as-obtained catalyst have been verified using XRD, FTIR, N 2 physisorption, SEM, EDX, TG, Py-FTIR, TPD-NH 3 , and XPS techniques. The obtained TPA/Sn(II)-BDC catalyst was found to be the best with 60 wt% of TPA loading, which resulted in an OA conversion of 91.7 % at optimized conditions of 0.15 g catalyst loading and methanol to OA molar ratio of 20:1 at temperature of 120 °C in 4 h, and the excellent performance arises from available pores structure, large amounts of acidic sites, good stability and the synergistic catalytic effect of TPA and Sn(II)-BDC. Furthermore, the composite catalyst reusability has been studied for five cycles, and it exhibits an acceptable conversion. This research provides a green and large-scale synthesis route for the sustainable production of biofuels by constructing heteropolyacids/Sn-based MOFs synergistic catalysts.
研究领域:
化学工程
·
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）