JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yunfei Bao,Liping Zhao,Fengshuo Xi,Shaoyuan Li,Xiuhua Chen,Jijun Lu,Zhongqiu Tong,Kuixian Wei,Bin Luo,Wenhui Ma
Silicon anodes are promising candidates for next-generation lithium-ion batteries owing to their high theoretical capacity. However, the practical application of silicon anodes is limited by severe volume expansion and poor cycling stability. This study presents a sustainable and cost-effective strategy for synthesizing high-performance graphene-like carbon (GLC)-coated silicon/nano‑copper (Si/Cu@GLC) composites using photovoltaic silicon cutting waste (SCW) as the starting material. The synthesis combines copper-assisted chemical etching with the catalytic pyrolysis of humic acid, yielding a composite with enhanced electrochemical performance. Economic and environmental assessments reveal that the SCW-derived Si/Cu@GLC exhibits lower production costs and CO 2 emissions than conventional silicon anode fabrication processes. The Si/Cu@GLC composite exhibits a high initial discharge capacity of 2333.98 mAh g −1 , along with excellent cycling stability and superior rate capability. The GLC coating and nanoporous structure synergistically mitigate volume expansion, resulting in a low expansion rate of only 157 % after 100 cycles. Upon integration into a full cell with an LFP (Lithium Iron Phosphate) cathode, Si/Cu@GLC exhibits excellent cycling stability, retaining 86.7 % of its capacity after 200 cycles at 0.5C. This study provides a sustainable and scalable approach for upcycling photovoltaic silicon waste into high-performance silicon–carbon anodes. The findings highlight the potential of an eco-friendly circular production model that combines economic viability with superior battery performance.
研究领域:
材料科学
·
储能技术
·
电化学
·
纳米技术
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Shi-Ming Niu,Xin-Hui Li,Hao-Yang Ding,Wo-Long Wang,Peng-Fei Li,Xia-Chen Zheng,Min-Hua Cui
The application of heterogeneous photocatalysts is severely limited by the high charge transfer resistance (R ct ). BiVO 4 /g-C 3 N 4 photocatalysts were prepared and loaded on the conductive matrix material carbon paper (CP) to reduce electron transfer resistance and improve the photocatalytic performance. The R ct of BiVO 4 /g-C 3 N 4 @CP was remarkedly reduced by 94.3 % compared to the photocatalysts on the oil paper (BiVO 4 /g-C 3 N 4 @OP), while the photocurrent density increased by 5.5 times. The utilization efficiency of light energy and separation of photoelectrons and holes were improved with CP due to its ability to facilitate long-distance transfer of photoelectrons. Consequently, the photocatalytic degradation performance of BiVO 4 /g-C 3 N 4 @CP was enhanced by a 26.1 % improvement in ciprofloxacin (CIP) degradation efficiency. Quenching experiment, LC-MS analysis and DFT calculation revealed that piperazine ring opening and C-F cleavage were the major pathways for CIP degradation with BiVO 4 /g-C 3 N 4 @CP.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2020
·Vol. 27
·期 1
·305-314
·
IF 2.394
He Yi,Liu Lijuan,Tao Shihan,Ye Jing,Wu Jun,Xu Cuiying,Guo Qiaohui
NiCo 2 S 4 nanostructures have been intensively investigated as supercapacitor electrode materials ascribing to its high conductivity and capacity. However, NiCo 2 S 4 -based electrodes suffer inferior cycling durability owing to its structural degradation during the redox process. Herein, NiCo 2 S 4 nanoneedles anchored on the graphitic carbon nanofiber mat (NiCo 2 S 4 /GCN) are synthesized via a two-pot hydrothermal method. The NiCo 2 S 4 /GCN composed of highly conductive graphitic carbon nanofiber (GCN) frameworks ensures the uniform dispersion of NiCo 2 S 4 and accelerate electron/ion transport, and NiCo 2 S 4 with porous and hollow nanostructure facilitates the diffusion of electrolyte. The NiCo 2 S 4 /GCN electrode reveals a high-energy storage capability (1775.2 F g −1 at 10 A g −1 ) and an amazing rate retention (1510.2 F g −1 at 50 A g −1 ). Furthermore, the NiCo 2 S 4 /GCN//active carbon device displays a superior energy density (52.3 W h kg −1 at 358.0 W kg −1 ) and preeminent cycle life (retention 94.7% after 10,000 cycles at 5 A g −1 ), suggesting a promising candidate in supercapacitor applications.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2013
·
IF 2.072
Jie Zhao,Yu Xie,Changlin Yu,Zhanggao Le,Rong Zhong,Yuancheng Qin,Jianfei Pan,Fuming Liu
A novel graphene–carbon nanotube (graphene–CNT)/CoFe 2 O 4 /polyaniline composite with reticular branch structures had been fabricated by in situ chemical polymerization method. The textured structures of the as-prepared composites were characterized by the fourier transform infrared (FTIR) and X-ray diffraction (XRD). The morphology was analyzed by the scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electromagnetic properties were tested by vibrating sample magnetometer and four-probe conductivity tester. The results showed that the graphene–CNT/CoFe 2 O 4 /polyaniline composite had the unique reticular branch structures. When the mass ratio of the graphene–CNT/CoFe 2 O 4 to aniline was 1:3, the magnetic saturation value of the composite achieved 39.6 emu g −1 , and the conductivity reached 1.957 S cm −1 . Based on the experimental results, a probable formation mechanism for the unique reticular branch structures was proposed.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2024
·Vol. 30
·期 10
·6047-6059
·
IF 2.4
Jin Duolong,Dong Xiaoping,Liu Jiankai,Pang Qianran,Xin Shenghai,Yang Liying,Wang Cuibiao
With the continuous development of new energy application technology, there is an increasingly urgent need for the safety and affordability of new energy storage products. In recent years, aqueous zinc-ion batteries based on mild aqueous electrolytes have garnered widespread attention as a potential replacement for traditional lithium-ion batteries. However, the limited capacity and low operating voltage of aqueous zinc-ion batteries restrict their widespread application. For this reason, sulfuric acid was added to the electrolyte, which effectively promotes the two-electron conversion of MnO 2 /Mn 2+ during the discharge process. This enhancement results in the high voltage segment of the batteries’ discharge phase offering a higher reversible specific capacity. The results showed that the batteries with 0.1 M H 2 SO 4 added to the electrolyte had a reversible discharge-specific capacity of up to 536.07 mAh·g −1 at a current density of 100 mA·g −1 . The activated batteries exhibited a reversible specific capacity of 85.11 mAh·g −1 even at a high current density of 1 A·g −1 . Furthermore, the capacity retention rate after 1000 cycles was 88.3%. Moreover, the activation rate of the batteries was faster with the addition of H 2 SO 4 , and the average operating potential increased compared to the batteries without H 2 SO 4 in the electrolyte. This provides an effective solution for the practical application of aqueous zinc-ion batteries in power grids.
研究领域:
电化学
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能源存储技术
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Energy Materials
·
2025
·
IF 26
Jiazhuang Guo,Ying Zhang,Liangliang Zhou,Wenteng Hou,Jinze Wang,Liangliang Zhu,Su Chen
Graphene carbonene fiber (GCF) supercapacitors are promising for portable/wearable electronics but suffer from fabrication-induced restacking and uneven hybridization between graphene sheets and hybrid active materials, degrading electrochemical performance and hindering practical applications. Here, an innovative microfluidic-spinning-chemistry (MSC) method is proposed for the in situ construction of the nickel molybdate/porous GCF (NiMoO 4 /PGCF) hybrid, which manifests a large specific surface area, high electrical conductivity, and abundant redox activity, facilitating ion diffusion, and ensuring energy storage and supply. As a result, the NiMoO 4 /PGCFs express an exceptional areal capacitance of 3597.7 mF cm −2 in a three-electrode system. Additionally, this flexible solid-state NiMoO 4 /PGCF supercapacitor presents large areal capacitance (1006.8 mF cm −2 ), ultrahigh energy density (218.5 µWh cm −2 ), and long-term cycling stability (90.2% capacitive retention at 1 mA cm −2 after 20 000 cycles), which is capable of powering a toy windmill without extra recharging by other power sources. Furthermore, a demonstration of a supercapacitive controller using the solid-state NiMoO 4 /PGCF is presented, which could couple with a triode to manage the takeoff of gliding unmanned aircraft. This provides high-efficiency start/stop control and safety redundancy for gliding unmanned aircraft, while also paving the way for the innovation of next-generation gliding unmanned aircraft energy management and control systems.
研究领域:
材料科学
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电化学
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能源存储
·
柔性电子器件
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Junyao Wang,Lixiang Li,Huan Liu,Qi Hou
Soft wearable sensing devices have attracted extensive research attention in the fields of e-skin and human health monitoring due to the advantages of integrated functions and good biocompatibility. However, existing sensors are unable to achieve a highly sensitive response over a wide sensing range. In addition, the sensors require an external power supply during utilization. To overcome this key challenge, in this paper, we propose a conductive ink of GN-CNTs prepared with graphene and carbon nanotubes as conductive fillers and N,N-dimethylformamide as the solvent. A self-powered flexible wearable sensing microsystem with a bionic round-leaf motherwort structure is constructed using a thermoplastic polyamide film as a flexible substrate. The bionic round-leaf motherwort structure (BRMS), which can reduce the stress concentration distribution, can obtain a larger tensile strain range. The prepared BRMS flexible electrodes can be used for electrocardiography (ECG) signal acquisition and recording at three different sites such as the chest, fingertip, and wrist. The flexible electrodes have a higher ECG signal amplitude and signal-to-noise ratio. The friction layer electrodes are printed with conductive ink prepared by printing GN-CNT conductive inks. Following this, a friction nanogenerator is assembled to collect low-frequency mechanical energy. Supercapacitors were prepared by an assembly process using conductive silver paste and GN-CNT conductive ink coating. There is no obvious capacitance decay phenomenon under different angles and other deformation states, and it has an excellent energy storage performance. In this sensing microsystem, strain sensors and flexible electrodes can be directly driven from a power source consisting of a friction nanogenerator and a supercapacitor. It can be used for a long time for low-power detection of human motion detection and medical ECG monitoring.
研究领域:
材料科学
·
生物医学工程
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2015
·
IF 4.169
Yunyun Sun,Jing Tian,Lu Wang,Hongyuan Yan,Fengxia Qiao,Xiaoqiang Qiao
A simple and time-saving one pot synthesis of magnetic graphene/carbon nanotube composites (M-G/CNTs) was developed that could avoid the tedious drying process of graphite oxide, and G/CNTs were modified by Fe 3 O 4 nanoparticles in the reduction procedure. It contributed to a shorten duration of the synthesis process of M-G/CNTs. The obtained M-G/CNTs were characterized and the results indicated that CNTs and Fe 3 O 4 nanoparticles were served as spacer distributing to the layers of graphene, which was beneficial for enlarging surface area and improving extraction efficiency. Moreover, M-G/CNTs showed good magnetic property and outstanding thermal stability. Then M-G/CNTs were applied as adsorbent of magnetic dispersive solid-phase extraction for rapid extraction and determination of oxytetracycline in sewage water. Under the optimum conditions, good linearity was obtained in the range of 20–800 ng mL −1 and the recoveries were ranged from 95.5% to 112.5% with relative standard deviations less than 5.8%.
研究领域:
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2017
·Vol. 164
·期 14
·H1033
·
IF 3.259
Fei Wang,Kang Ding,Can Zhang,Wenke Jia,Kui Lu,Yingjie Ye
In this work, pulse potential method (PPM) was presented to fabricate directly three dimensional graphene-carbon nanotubes (3DG-CNTs) network on the surface of glassy carbon electrode (GCE). The morphological and characteristic of 3DG-CNTs network were investigated by means of Raman spectra, scanning electron microscopy (SEM) and electrochemical experiments. The 3DG-CNTs network as a new voltammetric material was applied in developing a high-sensitive electrochemical sensor for determination of maltol. Under the optimum conditions, the electrochemical response showed a linear relationship with maltol concentrations in the range of 5.0 × 10−8 ∼ 4.5 × 10−6 mol L−1 and 1.0 × 10−5 ∼ 2.0 × 10−3 mol L−1, and a low detection limit of 1.0 × 10−8 mol L−1 was achieved for maltol. Moreover, the proposed method exhibited an excellent selectivity, stability, reproducibility and repeatability, which make it very suitable for a potential choice for determination of maltol in food matrices.
研究领域:
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Shengzhi Duan,Xiaowen Wu,Weihua Ao,Zhi Lei,Guoqing Leng,Minghao Fang,Zhaohui Huang,Bingcheng Luo
The incorporation of carbon materials can effectively enhance the performance of thermoelectric materials . By optimizing the thermoelectric properties of the carbon scaffold, it is possible to further improve the thermoelectric performance of the prepared carbon-based composites. To elevate the thermoelectric performance of the carbon scaffold, this work introduces a novel mesoscopic design strategy, utilizing natural flake graphite to create a three-dimensional ordered porous framework. Highly controllable anisotropic conductivity and thermal conductivity of the porous graphite skeleton were achieved, by combining sizable sodium chlorine templates (37.5–250 μm) with a natural flake graphite matrix (50–150 μm). A porous graphite with high electrical conductivity and low thermal conductivity along the vertical axis was obtained by carefully regulating the parameters. The sample demonstrated exceptional thermoelectric conversion performance, achieving a thermoelectric power factor of 12.2 μW m −1 K −2 and a figure of merit value of 28.3 × 10 −4 . Furthermore, the thermoelectric property of the samples could be greatly improved by adding a small amount of ferric chloride, with a thermoelectric power factor reaching 41.9 × 10 −4 and a thermoelectric figure of merit reaching 81.4 μW m −1 K −2 . This work provides an effective scheme for the mesoscopic regulation of porous graphite carbon structures and offers a new strategy for enhancing the performance of thermoelectric generators .
研究领域:
材料科学
·
能源转换技术
✓ 已验证
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2014
·
IF 4.517
Hui Huang,Ting Chen,Xiuyu Liu,Houyi Ma
A green and facile method was developed to prepare a novel hybrid nanocomposite that consisted of one-dimensional multi-walled carbon nanotubes (MWCNTs) and two-dimensional graphene oxide (GO) sheets. The as-prepared three-dimensional GO–MWCNTs hybrid nanocomposites exhibit excellent water-solubility owing to the high hydrophilicity of GO components; meanwhile, a certain amount of MWCNTs loaded on the surface of GO sheets through π–π interaction seem to be “dissolved” in water. Moreover, the graphene(G)-MWCNTs nanocomposites with excellent conductivity were obtained conveniently by the direct electrochemical reduction of GO–MWCNTs nanocomposites. Seeing that there is a good synergistic effect between MWCNTs and graphene components in enhancing preconcentration efficiency of metal ions and accelerating electron transfer rate at G-MWCNTs/electrolyte interface, the G-MWCNTs nanocomposites possess fast, simultaneous and sensitive detection performance for trace amounts of heavy metal ions. The electrochemical results demonstrate that the G-MWCNTs nanocomposites can act as a kind of practical sensing material to simultaneously determine Pb 2+ and Cd 2+ ions in terms of anodic stripping voltammetry (ASV). The linear calibration plots for Pb 2+ and Cd 2+ ranged from 0.5 μg L −1 to 30 μg L −1 . The detection limits were determined to be 0.2 μg L −1 ( S/N = 3) for Pb 2+ and 0.1 μg L −1 ( S/N = 3) for Cd 2+ in the case of a deposition time of 180 s. It is worth mentioning that the G-MWCNTs modified electrodes were successfully applied to the simultaneous detection of Cd 2+ and Pb 2+ ions in real electroplating effluent samples containing lots of surface active impurities, showing a good application prospect in the determination of trace amounts of heavy metals.
研究领域:
环境科学
·
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 192
·期 1
·1-14
·
IF 5.3
Wang Yilin,Zhao Zixia,Wang Yuefan,Liu Zhifang,Chen Leyao,Qi Jin,Xie Yixi,Zhao Pengcheng,Fei Junjie
GO/Co-MOF/PPy-350 (GPC-350) was synthesized by in situ growth of ultrafine Co-MOF on graphene oxide (GO), followed by encapsulation with polypyrrole (PPy) and calcination at 350.0℃. Meanwhile, MoS 2 -MWCNTs (MoS 2 -CNTs) were produced via the in situ synthesis of MoS 2 within multi-walled carbon nanotubes (MWCNTs). The electrochemically superior GPC-350/MoS 2 -CNTs nanocomposite was then achieved by combining GPC-350 with MoS 2 -CNTs. The polypyrrole encapsulation serves to protect the ultrafine Co-MOF, preventing its degradation during the calcination process. The linear detection range of the GPC-350/MoS 2 -CNTs/GCE sensor for the determination of catechin (CA) in phosphate buffered saline (PBS) was from 5.0 to 1800.0 nM with a limit of detection of 1.78 nM. In addition, the materials were characterized using SEM, EDX, TEM, XRD, EIS, XPS, FTIR, and Raman. These results indicate that the synthesis of GPC-350/MoS 2 -CNTs nanocomposites is successful and CA in beverages samples can be effectively detected using electrochemical sensors. Additionally, the reaction mechanism of CA was explored through cyclic voltammetry. The application of GPC-350/MoS 2 -CNTs nanocomposites in sensor technology offers innovative approaches for the ultrasensitive detection of flavonoids. Graphical abstract
研究领域:
材料科学
·
分析化学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）