Acta Metallurgica Sinica-English Letters
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2025
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IF 3.9
Yuan Baocheng,Wen Yi,Wang Lei,Li Zhihao,Wang Hong-Chao,Chang Cheng,Zhao Li-Dong
Thermoelectric materials possess tremendous potential in energy regeneration owing to their capacity to produce power directly from heat. SnTe, a lead-free compound, is a prospective thermoelectric material. However, because of its elevated thermal conductivity, the thermoelectric performance of undoped SnTe remains at a low level. In this work, we induce ternary compounds CuFeS 2 into the SnTe matrix by ball milling. We observe the decomposition of CuFeS 2 , which decomposes into FeS, Cu 2 S, and other binary compounds. These newly generated binary compounds form micropores and secondary phases in the matrix. Combined with the natural grain boundaries in the polycrystal, they form all-scale hierarchical structures within the material, resulting in reduced lattice thermal conductivity. Overall, the produced SnTe + 2 wt% CuFeS 2 composites show the peak dimensionless figure of merit ( ZT ) up to 0.33 at 673 K, an increase of ~ 100% compared to the undoped SnTe.
研究领域:
材料科学
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能源工程
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产品关联
DOI
高影响因子
Green Processing and Synthesis
·
2017
·Vol. 7
·期 4
·306-315
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IF 0.782
Zhihao Bi,Zhihao Li,Lifeng Yan
CuFeS 2 nanoparticles have been synthesized and used as catalyst for the degradation of lignin. Under mild condition of reaction at 60°C and 5 h in the presence of 2 ml hydrogen peroxide, lignin can be degraded completely and converted to dicarboxylic acids, such as oxalic acid (OA), fumaric acid, maleic acid, and succinic acid (SA), carbon oxides, and aromatic compounds. The major product is OA (up to 30% selectivity) and SA. On the basis of the chemicals detected, we proposed a logical mechanism similar to Fenton reaction. The results reveal that HO˙ and HOO − , formed from the cleavage of hydrogen peroxide over the catalyst, play an essential role in the oxidation of lignin to destroy its aromatic structure and generate carboxylic or DCA. This is a potential method to convert native lignin as a renewable feedstock to produce valuable chemicals.
研究领域:
化学工程
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可再生资源利用
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DOI
高影响因子
Journal of Water Process Engineering
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2025
·
IF 6.7
Yulin Chen,Danying Xing,Yang Sui,Zexin Liu,Xiaodan Zhao
Tetracycline, representing as the typical antibiotics, is widely utilized and commonly detected at high concentrations in aquatic environments. Advanced oxidation technologies leveraging the high reactivity of radicals generated by activated peracetic acid via iron-based heterogeneous activators exhibit excellent effectiveness for tetracycline removal, yet this process is hampered by the slow reduction of >Fe(III) to >Fe(II). Regarding the redox reversibility of CuFeS 2 and the electron-donating properties of sulfur components in accelerating the reduction of >Fe(III) to >Fe(II), the combination of CuFeS 2 and peracetic acid (simplified as the CuFeS 2 /PAA system) is developed. At a low CuFeS 2 dosage of 0.03 g L −1 , tetracycline was degraded with a degradation rate of 0.167 min −1 under neutral conditions, which was more effective than CuS and FeS 2 . The efficacy is consistent the electron-transferring ability of CuFeS 2 , CuS and FeS 2 . CuFeS 2 exhibits enhanced catalytic activity due to its unique redox properties, in which >Fe(II) sites facilitate PAA activation, while >Cu(I) is essential for >Fe(III) reduction, creating a synergistic interaction that accelerates >Fe(III) reduction to >Fe(II). As the main radical generated, CH 3 C( O )OO• plays a key role in tetracycline degradation. It is also indicated that different water quality parameters slightly impact tetracycline degradation, highlighting the system's robust practical application potential. By facilitating the rapid reduction of >Fe(III) to >Fe(II), the CuFeS 2 /PAA system can achieve effective tetracycline degradation. This study is expected to provide a feasible method for the treatment of the water and wastewater containing antibiotics.
研究领域:
环境科学
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化学
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DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
·
IF 9.5
Si-Qi Xiao,Liu-Zong Liu,Zhen-Long Zhang,Yue-Feng Liu,Hui-Ping Gao,Hua-Fang Zhang,Yan-Li Mao
Poor stability retards the industrialization of perovskite solar cells (PSCs). One of the effective ways to solve this issue is to modify the perovskite surface to improve the efficiency and stability of the PSCs. Herein, we synthesized CuFeS2 nanocrystals and applied them to modify the perovskite surface. The efficiency of the PSCs with CuFeS2 modification is improved to 20.17% from 18.64% for the control devices. Some investigations demonstrate that the CuFeS2 modification passivates the perovskite surface defects and induces better energy band arrangement. Furthermore, the stability of the PSCs with CuFeS2 modification is improved compared with the devices without CuFeS2 modification. The efficiency of the PSCs with CuFeS2 modification maintains 93% of its initial value, whereas that of the devices without CuFeS2 modification decreases to 61% of the initial value. This work demonstrates that CuFeS2 is a novel material used as a modification layer to enhance the efficiency and stability of the PSCs.
研究领域:
材料科学
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能源技术
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
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2019
·Vol. 7
·期 24
·7279-7287
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IF 6.641
Tong Yan,Yunyan Li,Xiaoxiao Song,Jie Wang,Zhuoying Xie,Dawei Deng
The cytotoxicities of the elements of current quantum dots (QDs) greatly restrict their applications in biomedical fields. Herein, we firstly proposed and synthesized oil-soluble heavier-element-free (or Cd-free) CuFeS2/ZnS QDs, and focused on the synthetic controls over the core/shell structure. It was found that although the as-prepared CuFeS2 QDs are nonemissive, the in situ ZnS-overcoating could make them exhibit bright near-infrared (NIR) photoluminescence (PL) (PL peak at 840 nm; PL quantum yield (QY) up to 52%). We also analyzed their shape, structure and elemental composition in detail. Next, by the interaction between oil-soluble QDs and liposomes, the aqueous QD-laden liposomes (named as LipQDs) were fabricated, allowing further exploration of bio-application. Finally, after further decorating with isolated macrophage membrane, the resulting LipQDs@M nanocomposites were observed to target actively postoperative tumor inflamed tissue (or other inflamed tissues), using an in vivo small animal IR optical imaging system. Our results indicate that these NIR-emitting CuFeS2/ZnS QDs should be a new promising fluorescent marker for biomedical optical imaging, as an alternative for Cd-, Hg-, and Pb-based ones.
研究领域:
生物医学工程
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材料科学
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光学成像
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DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
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2019
·Vol. 21
·期 12
·1-11
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IF 2.009
Wu Nengtao,Liu Xingyu,Zeng Min,Gao Jinwei,Lu Xubing,Zeng Zhi,Zheng Yuhui
Since Cu 2+ and Fe 3+ ions have been considered as bioactive cations in oxygen transport and enzymatic reactions, the development of reliable ways for the monitoring of the two species will be highly desirable. But the optical stability of conventional organic chromophores needs to be improved. Therefore, the employment of quantum dots (quantum dots are abbreviated to be QDs) such as ternary CuFeS 2 QDs for the purpose of sensing has been reported in this study. CuFeS 2 QDs were synthesized by using oleylamine as the stabilizer at 180 °C and the particle size was around 2–3 nm. The monodispersed quantum dots with tetragonal chalcopyrite crystalline structure were identified. The corresponding excitation and emission wavelengths of the QDs were monitored at 372 and 458 nm. Magnetic properties were analyzed via applied magnetic field ranging between −6000 and 6000 Oe at 300 K and the ferromagnetic phase was verified. In this report, CuFeS 2 QDs has been used as an optical probe to detect the metal ions with high sensitivity, selectivity and fast responses. Two linear equations can be obtained in the range from 0 to 30 μM for Cu 2+ and from 0 to 45 μM for Fe 3+ (detection limits: Cu 2+ , 1.98 μM; Fe 3+ , 2.15 μM). These results may provide promising applications in cation sensing fields.
研究领域:
材料科学
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纳米技术
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生物医学工程
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分析化学
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无机化学
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DOI
高影响因子
Nano Research
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2023
·Vol. 16
·期 7
·9407-9415
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IF 9.9
Sun Ge,Lin Hezhe,Tian Ruiyuan,Wei Zhixuan,Wang Xiaoqi,Jin Xu,Yao Shiyu,Chen Gang,Shen Zexiang,Du Fei
Nano-structure designs with conductive networks have been demonstrated as an efficient strategy to boost sodium storage properties for transition metal sulfides. Herein, an exquisite nanosheets self-assembled hierarchical flower-ball-like CuFeS 2 embedded into the reduced graphene oxide (RGO) nanosheet matrix (F-CuFeS 2 @RGO) is fabricated via a concise two-step solvothermal method. Such a well-designed architecture affords increased active reaction interfaces and enhanced mixed ionic/electronic conductivity. Meanwhile, the external RGO matrix can effectively alleviate the volume expansion and create a stable structure during long cycles. As a result, the composite material exhibits a high reversible capacity of 559 mAh·g −1 at 0.1 A·g −1 , a superior rate capability of 455 mAh·g −1 at 5 A·g −1 and excellent cyclic stability with 96% capacity retention after 4800 cycles at 5 A·g −1 , among the best in the state-of-the-art transition metal sulfide anodes. Especially, F-CuFeS 2 @RGO delivers outstanding low-temperature performances with a high capacity retention of 100% and 91% at −20 and −40 °C, respectively, over 200 cycles. The proposed hierarchical structure fabrication paves a new direction in the design of high-performance electrodes for all-temperature energy storage applications.
研究领域:
材料科学
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能源存储
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DOI
高影响因子
Water
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2024
·Vol. 16
·期 11
·1504
·
IF 3
Dongyang Zhang,Kunfu Li,Lei Fang,Huishan Chen
In this research, the CuFeS2/MXene-modified polyvinylidene fluoride (PVDF) membrane was prepared to activate peroxymonosulfate (PMS) to remove moxifloxacin (MOX) and its morphology; surface functional groups and hydrophilicity were also studied. The parameters of the catalytic membrane/PMS system were optimized, with an optimal loading of 4 mg/cm2and a PMS dosage of 0.20 mM. High filtration pressure, alkaline conditions, and impurities in water could inhibit MOX removal. After continuous filtration, the removal efficiency of MOX using the catalytic membrane/PMS system and PVDF membrane was 68.2% and 9.9%, respectively. Batch filtration could remove 87.8% MOX by the extra 10 min contact time between the catalytic membrane and solution. During the filtration process, CuFeS2/MXene on the surface of the catalytic membrane activated PMS to produce SO4•−, HO•, and1O2, and MOX was removed through adsorption and degradation. Taking humic acid (HA) as the model foulant, reversible fouling resistance in the catalytic membrane/PMS system was 22.8% of the PVDF membrane. The catalytic membrane/PMS system weakened the formation of the cake layer by oxidizing HA into smaller pollutants and followed the intermediate blocking cake filtration model. The novelty of this research was to develop a CuFeS2/MXene–PVDF membrane-activated PMS system and explore its application in antibiotics removal.
研究领域:
环境科学
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材料科学
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水处理
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DOI
高影响因子
MATERIALS & DESIGN
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2024
·
IF 7.6
Huidong Wang,Jiadong Guo,Yangzi Yang,Ning Wang,Xiao Yang,Liang Deng,Xiankun Cao,Zhaoyang Ran,Dong Fang,Kang Xu,Yingchun Zhu,Jie Zhao,Jingke Fu,Yongqiang Hao
With the clinical prevalence of drug-resistant pathogenic bacteria, developing non-antibiotic strategies to treat multi-drug-resistant bacterial infections is urgent yet challenging. Ferroptosis is a non-apoptotic form of regulated cell death that can overcome drug resistance. Emerging evidence shows the potential of triggering ferroptosis-like for anti-infection therapy, but the direct delivery of iron species is inefficient and may cause detrimental effects. Herein, CuFeS 2 nanozyme is revealed as a ferroptosis-like initiator to eradicate bacterial infections for effective anti-infection therapy. Upon activating by visible light irradiation or hydrogen peroxide, the as-prepared CuFeS 2 nanozyme can significantly expedite reactive oxygen species generation, deplete intracellular glutathione, and interfere with respiratory metabolisms, resulting in lipid peroxidation-driven ferroptotic damage. Additionally, the CuFeS 2 displays good photothermal conversion capacity under near-infrared light irradiation, further augmenting the antibacterial efficiency. Accordingly, the CuFeS 2 nanozyme shows potent antibacterial activity against Gram-negative Escherichia coli and Gram-positive methicillin-resistant Staphylococcus aureus strains in vitro . Moreover, it shows excellent biocompatibility and robust anti-infection effects in MRSA-infected wounds in vivo . This ferroptosis-like antibacterial strategy may open up new insights into the treatment of drug-resistant pathogen infection.
研究领域:
纳米技术
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生物医学工程
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微生物学
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药学
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治疗学
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产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2026
·
IF 8.4
Lin Sun,Yu Wu,Bowen Jin,Shimeng Zhang,Jianxiong Gao,Zhilong Wang,Xinyu Zhao,Ju Xiao,Qijing Zhao,Tiancheng Han,Mingfei Shao
Conversion-type cathode materials are promising candidates for achieving high capacities in rechargeable magnesium batteries (RMBs) via multi-electron redox reactions. Nevertheless, their practical performance is often limited by the intrinsic energy barriers of the conversion reactions, leading to low reversible capacity and poor cycling stability. Herein, a self-catalytic CuFeS 2 electrode architecture is designed to enhance the electrochemical performance of RMBs. During the initial discharge, metallic Cu nanocatalysts are generated in-situ from CuFeS 2 , preceding the subsequent metal sulfide conversion process ( e.g. FeS derived from CuFeS 2 ). Moreover, these catalytically active Cu sites form atomic-scale interfaces with the FeS phase, effectively lowering the Fe−S bond dissociation energy barrier. Benefiting from this catalytic effect, the optimized CuFeS 2 cathode delivers remarkable reversible capacities of 293 mAh g −1 at 0.05 A g −1 and 135 mAh g −1 remained at 2 A g −1 . Moreover, a high capacity of 110 mAh g −1 is maintained after 700 cycles. This work establishes an effective design paradigm for developing high-capacity, durable conversion-type cathodes for advanced magnesium battery systems.
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高影响因子
NANO
·
2024
·
IF 1
Lei Shu,Zian Wei,Yan Guo
CuFeS 2 has many advantages, like high electrical conductivity, multiple redox centers, natural abundance and nontoxic. However, the low capacitance limits their application. In this work, we use carbon spheres (CS) prepared from starch to modify CuFeS 2 . The prepared CuFeS 2 /CS shows special structures with the CS as the core and CuFeS 2 as the shell. These CuFeS 2 /CS nanocomposites show improved capacitive performance. CuFeS 2 /CS has a specific capacitance of 349.4 F g − 1 at 0.5 A g − 1 , four times that of pristine CuFeS 2 (88.8 F g − 1 ) , which might be attributed to the increased electrolyte diffusion capacity. The cyclic stability is also slightly improved, from 86.4% of the pristine CuFeS 2 to 90.5% of the CuFeS 2 /CS nanocomposites due to the rigid structure of both crystal CuFeS 2 and firm CS. These CuFeS 2 /CS nanocomposites are expected to be used in high-performance supercapacitor applications.
研究领域:
材料科学
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能量存储
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纳米技术
·
电化学
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DOI
高影响因子
Materials
·
2026
·Vol. 19
·期 11
·2199
·
IF 3.7
Songkai Yan,Xuefeng Yin,Moxuan Chen,Ouyuan Lu,Chunyu Chen,Dianchun Ju
Transition metal sulfides are promising anode materials for lithium-ion batteries, but their practical application is limited by severe volume variation and sluggish reaction kinetics during cycling. Inspired by the natural mineral assemblage of seafloor massive sulfides (SMS), FeS2/CuFeS2composite anodes were prepared by a mechanochemical ball-milling method with mass ratios of 9:1 and 7:3 to reflect the major compositional characteristics of SMS. Among them, the 9:1 composite (F9C1) exhibited the best overall electrochemical performance, delivering a reversible capacity of 763.4 mAh g−1after 300 cycles at 1 C and retaining 46% of its baseline capacity at 5 C. Structural and electrochemical analyses suggested that the introduction of a small amount of CuFeS2likely promoted interfacial interactions between FeS2and CuFeS2phases, reduced charge-transfer resistance, and enhanced pseudocapacitive contribution, while preserving the capacity advantage of the FeS2host phase. These results demonstrate that mineral-inspired compositional design is an effective strategy for improving the lithium-storage performance of sulfide anodes and provides a feasible route for developing electrode materials inspired by naturally coexisting sulfide minerals.
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DOI
PubMed
高影响因子
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