ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Hanxin Qian,Zhan Wu,Zhouyu Huang,Menglu Lu,Jiayuan Xiang,Fangfang Tu,Zheyu Jin,Jianping Xu,Yongping Gan,Xinping He,Hui Huang,Xinhui Xia,Yang Xia,Wenkui Zhang,Jun Zhang
Sodium-ion batteries (SIBs) are promising for large-scale energy storage due to their high cost-effectiveness and safety. Alloy anodes exhibit significantly higher specific capacities compared to those of carbonaceous anode materials, holding great promise for enhancing the energy density of SIBs. However, their practical application is severely hindered by substantial volume expansion, sluggish reaction kinetics, and continuous fracture reformation of the solid-electrolyte interphase (SEI). Here, a multifunctional composite binder system was designed for the Sn anode, which was composed of poly(ethylene oxide) (PEO), sodium alginate (SA), and sodium bis(trifluoromethylsulfonyl)imide (NaTFSI). The PEO-SA-NaTFSI (PSN) binder integrates ternary synergistic functions: robust adhesion between the active material and current collector, enhanced Na+ transport kinetics, and formation of a stable NaF-rich SEI. Therefore, the Sn-PSN anode achieves an outstanding sodium storage performance with a high capacity of 583.4 mA h g–1 at a current density of 10 A g–1 and 77% capacity retention after 1500 cycles. In addition, the Sn-PSN||Na3V2(PO4)3 full battery can maintain 81% capacity after 200 cycles with an electrode energy density of 169.0 W h kg–1. This work provides a multifunctional binder design strategy with broad application prospects for high-performance anodes of SIBs.
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高影响因子
Journal of Cleaner Production
·
2025
·
IF 10
Tao Jiang,Ming Cheng,Yujiao Wang,Shaoqiang Guo,Wentao Zhou,Yafei Wang
The selective removal of neutron-absorbing fission products from spent nuclear fuel is critical for enhancing neutron economy and enabling efficient recycling. In this work, we present a novel two-step dry reprocessing strategy that integrates NH 3 /HCl gas mixture treatment with liquid Sn extraction to achieve phase-selective separation of Sm, Nd, Ru, Rh, and Pd from simulated U 3 O 8 -based spent fuel. Thermodynamic analysis and experimental validation reveal that decomposition of NH 4 Cl at elevated temperatures serves as the generator of NH 3 /HCl gas mixture capable of selectively chlorinating Sm 2 O 3 and Nd 2 O 3 into soluble chlorides while reducing U 3 O 8 to UO 2 and converting RuO 2 , Rh 2 O 3 , and PdO to their metallic states (Ru, Rh, Pd). Subsequent dissolution tests in LiCl-KCl confirm that Sm and Nd are almost completely removed, with chlorination efficiencies of nearly 100%, while uranium loss can be minimized by controlling direct NH 4 Cl contact. The coupled liquid Sn extraction at 1173 K enabled the recoveries of metallic Rh, Rh, and Pd with a promising extraction efficiency. This integrated approach significantly simplifies the partitioning of key neutron poisons (Sm, Nd, Ru, Rh, Pd) compared to conventional aqueous or pyrochemical routes, reduces secondary waste, and preserves uranium in its UO 2 form.
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Journal of Materials Chemistry A
·
2015
·Vol. 3
·期 48
·24437-24445
·
IF 7.443
Kai Wang,Gaofeng Teng,Jinlong Yang,Rui Tan,Yandong Duan,Jiaxin Zheng,Feng Pan
We report Sn(II) and Sn(IV) self-selective dual-doping, respectively, on Fe and Si sites of Li2FeSiO4 nanocrystals due to the steric and electronic structure effects of Sn(II,IV). Combined with experimental studies and theoretical calculations, we investigate the structure–property relationship of tin doped Li2FeSiO4 as the cathode material for high performance Li-ion batteries, in which the dual-doping enhances the electronic conductivity and lithium-ion diffusion coefficient. The doped sample with 5% Sn(IV) source shows the best electrochemical performance due to the improved electronic conductivity and Li-ion diffusivity. Density functional theory (DFT) calculations also reveal that tin dual-doped Li2FeSiO4 has better electronic conductivity and lower voltage of delithiation than that of the undoped Li2FeSiO4, which is in accordance with our experimental results.
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CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Armin Rezayan,Ke Wang,Renfeng Nie,Tianliang Lu,Jianshe Wang,Yongsheng Zhang,Chunbao Charles Xu
Catalytic transformation of carbohydrates to bio-chemicals such as 5-Hydroxymethylfurfural (HMF) has become a hot research topic, but development of cost-effective/efficient catalysts and processes remains a challenge for industrial application. In this study, efficient bifunctional Sn/KIT-1/C catalysts with controllable acid sites were synthesized and applied for glucose-to-HMF conversion. Strong Lewis acid sites were introduced into the framework of disordered mesoporous silica by liquid-phase grafting of tin chloride, and Bronsted acid sites were generated by inserting carbon into the mesopores, followed by controlled oxidation of the carbon. Characterizations revealed that optimizing the amount of carbon source, and carbonization and oxidation temperature provided a proper amount and strength of acidity that could significantly catalyze glucose dehydration reaction to HMF with suppressed byproducts formation. The best catalyst Sn/KIT-1/C(75–400-300) demonstrated superior catalytic performance at 175 °C for 2 h under THF/H 2 O biphasic system, obtaining 78.4 ± 2.1% and 82.9 ± 2.4% HMF yield and selectivity, respectively. The high activity may be attributed to catalyst high surface area/porosity, and the presence of well-balanced amounts and strength of Lewis/Bronsted acid sites. The catalyst could maintain its excellent catalytic activity for five consecutive runs, suggesting the high physical–chemical stability of the catalyst. The results obtained in this work demonstrated that bifunctional metal-supported silica–carbon composites can be a promising catalyst for simple/complex carbohydrates conversion to HMF/bio-based chemicals.
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高影响因子
MICROCHEMICAL JOURNAL
·
2014
·
IF 3.583
Shengling Sun,Jie Li
A method has been developed for the determination of zirconium (Zr), hafnium (Hf), niobium (Nb), tantalum (Ta), molybdenum (Mo), tungsten (W), and tin (Sn) in seawater by quadrupole inductively coupled plasma-mass spectrometry (Q-ICP-MS). The method is based on separation of the seven elements by extraction chromatography using N-benzoyl-N-phenylhydroxylamine (BPHA) supported on a microporous acrylic ester polymeric resin. The optimized procedure indicates that the BPHA resin has high selective adsorption for Zr, Nb, Mo, Sn, Hf, Ta, and W (known as fluoride soluble elements), whereas other interference and matrix elements are minimally adsorbed. The optimized eluent mixture with their molarity gives satisfactory recoveries for all analytes. The recovery can be achieved 99% for Zr, 97% for Nb, 97% for Mo, 99% for Sn, 99% for Hf, 95% for Ta, and 98% for W, respectively, by eluting with 6 mL of 6 mol L − 1 HF/1 mol L − 1 HCl. Furthermore, the technique for separation and enrichment of these elements provides a low total method blank. The detection limits for this method are 0.5 ppt for Zr, 0.2 ppt for Nb, 1.7 ppt for Mo, 1.0 ppt for Sn, 0.1 ppt for Hf, 0.1 ppt for Ta, and 0.3 ppt for W, respectively. The validity of the method is evaluated by replicate analyses of seawater reference materials; the precision of the results is better than 3% (RSD, n = 4), and the results are in good agreement with certified values. The established procedure has proved to be both practical and effective for seawater sample analyses.
研究领域:
分析化学
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海洋化学
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环境地球化学
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痕量元素检测
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质谱分析
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Haixuan Liang,FeiFei Wang,ShuiQing Ji,Bihong Chen,Libo Yang,Xinpeng Wang
Precise separation and dynamic enrichment of Sn(IV) from complex strongly acidic waste liquids are important for strategic metal recovery, but remain challenging because high acidity and competing ions can severely weaken adsorption selectivity. Herein, a covalent phosphazene-based silica composite adsorbent, CPP-O/SiO 2 , was prepared through the in situ solvothermal polymerization of cyanuric acid and hexachlorocyclotriphosphazene on porous SiO 2 . The SiO 2 support preserved a regular spherical morphology and favorable column adaptability, while the CPP-O network supplied abundant N/O coordination sites. CPP-O/SiO 2 retained high Sn(IV) removal efficiencies above 95% in 0.5–1 M HNO 3 and achieved approximately 98% Sn(IV) removal in a simulated acidic multi-ion matrix mimicking waste printed circuit board (WPCB) leachate/high-level liquid waste (HLLW). Adsorption equilibrium was reached within 120 min, and the saturated adsorption capacity reached 188.41 mg/g at 318 K. Fixed-bed column experiments further demonstrated selective dynamic retention and enrichment of Sn(IV) from simulated HLLW, giving an enrichment factor of approximately 116 after elution with 0.1 M NaOH and maintaining stable performance over eight adsorption–desorption cycles. FT-IR, XPS, and DFT analyses revealed that Sn(IV) capture was mainly governed by synergistic coordination involving O and N sites, especially Sn O interactions. This work provides a robust covalent composite adsorbent for selective Sn(IV) recovery from strongly acidic multi-ion media.
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Solar RRL
·
2020
·Vol. 4
·期 7
·2000116
·
IF 7.527
Kaiqin Xu,Shangbo Ning,Huayu Chen,Shuxin Ouyang,Jianbo Wang,Lizhu Song,Jun Lv,Jinhua Ye
A plum pudding-like Sn-based electrocatalyst is synthesized by calcinating the precursor SnC 2 O 4 on carbon black (CB) with polymeric carbon nitride (CN). This material exhibits a structure of a Sn metallic ball coated with a nitrogen-doped SnO x native layer (N-doped SnO x @Sn) embedded on a carbon matrix. The carbon matrix originates from the CB and the polymeric CN decomposition promotes electrical conductivity, leading to high electrochemical activity of the CN–Sn catalyst. The introduction of nitrogen that occupies the interstitial space of the surface SnO x layer further enhances electron transport; furthermore, it provides an electron-rich environment for oxygen because of its lower electronegativity, which is the fundamental cause of selectivity in the electrochemical reduction of CO 2 to CO. The maximum CO Faradaic efficiency over the optimal catalyst reaches 57.5%, with a high CO partial current density of 6.09 mA cm −2 at −0.7 V versus reversible hydrogen electrode. This catalyst is further applied to construct a photovoltaic–electrocatalytic CO 2 reduction/oxygen evolution reaction device to stably convert CO 2 to chemicals over 6 h at a high solar-to-fuel efficiency of 11.3%. This work explores a strategy of rational modulation on surface electronic structure to obtain high-performance electrocatalysts, inspiring the selectivity tuning in electrochemical CO 2 reduction via electronegativity difference of various elements.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Shuang Liu,Limin Ma,Cheng Zhen,Dan Li,Yishu Wang,Qiang Jia,Fu Guo
Bismuth telluride-based thermoelectric generators (TEG) were widely used in the clean recovery of waste heat, but frequent failure problems at the hot-end electrode interface limited the reliable service of TEGs. Diffusion at the electrode interface between n-type Bi 2 Te 3 and Sn-based solder seriously damaged the performance of the TEGs. In this work, the crystalline Co-4 at.% P coating was deposited to protect the n-type thermoelectric material Bi 2 Te 3 . The microstructural characterization proved that the Co-P coating effectively resisted the diffusion of Sn, Bi, Te and Cu atoms, and prevented the generation of brittle intermetallic compounds (IMC) and cracks at the interface. Ultra-thin CoTe 2 layer was formed between Co-P and Bi 2 Te 3 , much thinner than the brittle Ni-Te layer reported in the literatures. It not only showed that a good metallurgical bond was formed between Co-P and Bi 2 Te 3 , but also implied the Co-P only consumed little thermoelectric elements. After the 150-hour aging test at 423 K, the shear strength of the electrode joints did not decrease, and the power generation sustainability of thermoelectric pillars was significantly improved compared with uncoated pillars. Overall, the crystalline Co-P coating would be an excellent candidate to protect the n-type Bi 2 Te 3 pillars of the TEGs.
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CHEMOSPHERE
·
2023
·
IF 8.8
Anqi Li,Xuening Bai,Yuting Xie,Pengyang Xia,Hebin Bao,Miao He,Xuzhong Zeng,Wenjing Yang,Xueming Li
To overcome the limitations imposed by Sn–Sb electrodes, the titanium foam (PMT)-TiO 2 -NTs@NiO–C/Sn–Sb composite electrodes with cubic crystal structure are synthesized by introducing NiO@C nanosheet arrays interlayer on the TiO 2 -NTs/PMT matrix through hydrothermal and carbonization process. Then a two-step pulsed electrodeposition method is used to prepare the Sn–Sb coating. Benefiting from the advantages of stacked 2D layer-sheet structure, the obtained electrodes exhibit enhanced stability and conductivity. Synergy of inner and outer layers fabricated by different pulse times strongly influence the electrochemical catalytic properties of the PMT-TiO 2 -NTs@NiO–C/Sn–Sb (Sn–Sb) electrode. Hence, the Sn–Sb (b0.5 h + w1 h) electrode is the optimal electrode to degrade the Crystalline Violet (CV). Next, the effect of the four experimental parameters (initial CV concentration, current density, pH value and supporting electrolyte concentration) on the degradation of CV by the electrode are investigated. The degradation of the CV is more sensitive to alkaline pH, and the rapid decolorization of CV when the pH is 10. Moreover, the possible electrocatalytic degradation pathway of CV is performed using HPLC-MS. Results from the tests show that the PMT-TiO 2 -NTs/NiO@C/Sn–Sb (b0.5 h + w1 h) electrode is an interesting alternative material in industrial wastewater applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zhiyuan Ren,Bin Li,Yufeng Wu,Hui Liu,Feng Guo,Shaonan Tian,Jun Yang
Converting electronic waste into high-value catalytic materials is an effective strategy for reducing dependence on rare resources and enhancing sustainability. Herein, we synthesize fine-sized Sn-doped In 2 O 3-x particles with oxygen vacancies (Vo) using leachate from spent liquid crystal display panels (LCDPs) for efficient electrochemical CO 2 reduction (eCO 2 RR). Specifically, In 3+ and Sn 4+ ions from LCDPs leachate are coordinated with dodecylamine’s –NH 2 and transferred to the organic phase, followed by oleic acid modification to form the compounds (M−DDA−OA). Sn-doped Vo-rich In 2 O 3-x derived from LCDPs (rVo/LCDPs) can be synthesized by converting M−DDA−OA via a wet-chemistry process. Density functional theory (DFT) calculations and experimental results reveal that Sn doping and Vo in In 2 O 3-x synergistically enhance CO 2 adsorption and activation, facilitating the formation of *OCHO intermediates and achieving a maximum formate Faradaic efficiency (FE formate ) of 94.6 % for rVo/LCDPs at − 1.07 V vs RHE. This study highlights the potential for low-cost, high-performance In-based catalysts from spent LCDPs.
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ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Deliang Cheng,Lichun Yang,Renzong Hu,Jiangwen Liu,Renchao Che,Jie Cui,Yanan Wu,Wanyu Chen,Jianling Huang,Min Zhu,Yu-Jun Zhao
Developing anodes with a high and stable energy density for both gravimetric and volumetric storage is vital for high-performance lithium/sodium-ion batteries. Herein, an SnSe/few-layered graphene (FLG) composite with a high tap density (2.3 g cm–3) is synthesized via the plasma-milling method, in which SnSe nanoparticles are strongly bound with the FLG matrix, owing to both Sn–C and Se–C bonds, to form nanosized primary particles and then assemble to microsized secondary granules. The FLG can effectively alleviate the large stress generated from the volume expansion of SnSe during cycling based on its superstrength. Furthermore, as demonstrated by the density-functional theory calculations, the Sn–C and Se–C co-bonding benefitting from the formation of substantial vacancy defects on the P-milling-synthesized FLG enables strong affinity between SnSe nanoparticles and the FLG matrix, preventing SnSe from aggregating and detaching even after long-term cycling. As an anode for lithium-ion batteries, it exhibits high gravimetric and volumetric capacities (864.8 mAh g–1 and 1990 mAh cm–3 at 0.2 A g–1), a high rate (612.6 mAh g–1 even at 5.0 A g–1), and the longest life among the reported SnSe-based anodes (capacity retention of 92.8% after 2000 cycles at 1.0 A g–1). Subsequently, an impressive cyclic life (capacity retention of 91.6% after 1000 cycles at 1.0 A g–1) is also achieved for sodium-ion batteries. Therefore, the SnSe/FLG composite is a promising anode for high-performance lithium/sodium-ion batteries.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
·
电池技术
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Berhanu Telay Mekonnen,Daniel Manaye Kabtamu,Sun-Tang Chang,Guan-Cheng Chen,Amil Aligayev,Francisco Javier Dominguez-Gutierrez,Yao-Ming Wang,Sheng-Yu Wang,Wenyi Huo,Chen-Hao Wang
Developing cost-effective, high-performance bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for advanced clean energy technologies. This work details Sn–Fe bimetallic nanoparticles anchored on S,N-codoped graphitic carbon nitride (C3N4)-derived tubular carbon (SnFe/SNC_T), which are synthesized via a facile pyrolysis method at 850 °C (SnFe/SNC_850). The optimized SnFe/SNC_850 catalyst, which is characterized by a distinct bamboo-like tubular morphology, demonstrates superior ORR activity with a half-wave potential (E1/2) of 0.86 V vs RHE in 0.1 M KOH, surpassing commercial Pt/C (0.82 V). Furthermore, it exhibits excellent OER performance, requiring only 340 mV overpotential to achieve 10 mA cm–2, and displays remarkable overall bifunctionality. When SnFe/SNC_850 is integrated into an anion exchange membrane fuel cell (AEMFC), it delivers a peak power density of 277 mW cm–2, significantly outperforming Pt/C-based cells (168 mW cm–2). The catalyst also demonstrates exceptional durability, with only 20 mV of E1/2 decay after 30,000 cycles, compared to 50 mV for Pt/C. This enhanced performance is attributed to the synergistic interplay between Fe–Nx/Fe–Sx active sites and intermetallic Fe3SnC/FeS domains. These findings establish SnFe/SNC_850 as a highly promising nonprecious-metal bifunctional electrocatalyst for practical energy-conversion applications, paving the way for sustainable clean-energy solutions.
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