研究目的
通过简化路线设计和合成具有独特结构的先进电极材料，对缓解能源?；?、推动下一代锂离子电池发展至关重要。过渡金属氧化物和金属羟基氧化物（TMOs）已被研究作为当前商业化石墨负极材料的替代选择。
研究成果
FeOOH@ZnO/RGO三元复合材料作为锂离子电池负极展现出优异的储锂性能，在模拟太阳光照射下对亚甲基蓝表现出卓越的光芬顿降解活性。该合成路线简便高效，具有规模化放大和更广泛应用前景。
研究不足
该研究聚焦于FeOOH@ZnO/RGO复合材料的合成及初步性能评估，未深入探讨该合成工艺在工业条件下的长期稳定性和规模化可行性。
1：实验设计与方法选择：
采用阶梯式GO还原法合成FeOOH@ZnO/RGO复合材料。以亚铁离子(Fe2?)和金属锌作为还原剂。
2：样本选择与数据来源：
按照文献方法制备氧化石墨烯水溶液前驱体，分别以FeSO?·7H?O和锌箔作为FeOOH与ZnO纳米颗粒的前驱体。
3：实验仪器与材料清单：
石墨片、锌箔、七水合硫酸亚铁、无水乙醇、NaNO?、H?SO?、H?O?、KMnO?。
4：实验流程与操作步骤：
通过Fe2?离子部分还原GO悬浮液以构建FeOOH纳米颗粒，随后利用金属锌还原剩余含氧官能团形成ZnO纳米颗粒。
5：数据分析方法：
XRD、拉曼光谱、场发射扫描电镜(FESEM)、透射电镜(TEM)、N?吸附-脱附等温线、热重分析(TGA)、X射线光电子能谱(XPS)、循环伏安法(CV)、恒电流充放电测试、电化学阻抗谱(EIS)。
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CHI 660D electrochemical workstation
660D
CHI
Used for cyclic voltammetry testing to evaluate the electrochemical properties of the samples.
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Rigaku Ultima IV X-ray diffractometer
Ultima IV
Rigaku
Used for XRD analysis to characterize the crystal structure of the samples.
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JEOL JSM-7800F field-emission scanning electron microscope
JSM-7800F
JEOL
Used for FESEM imaging to observe the morphology of the samples.
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JEOL JEM-2100Plus transmission electron microscope
JEM-2100Plus
JEOL
Used for TEM imaging to analyze the microstructure of the samples.
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Graphite flakes
+100 mesh
Sigma Aldrich
Used as a precursor for graphene oxide synthesis.
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Zinc foil
Sinopharm
Used as a reducing agent for the deoxygenation of graphene oxide.
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Ferrous sulfate heptahydrate
FeSO4·7H2O
Sinopharm
Used as a reducing agent for the partial deoxygenation of graphene oxide and precursor for FeOOH nanoparticles.
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Renishaw inVia Plus Micro-Raman spectroscopy system
inVia Plus
Renishaw
Used for Raman spectroscopy to analyze the structural properties of the samples.
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Autosorb-IQ-MP/XR surface area and pore analyzer
Autosorb-IQ-MP/XR
Quantachrome
Used for N2 adsorption-desorption isotherms to determine the specific surface area and pore size distribution of the samples.
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Mettler Toledo TGA-2 thermal gravimetric analyzer
TGA-2
Mettler Toledo
Used for thermogravimetric analysis to determine the thermal stability and composition of the samples.
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Neware battery testing system
Neware
Used for galvanostatic charge and discharge testing to evaluate the battery performance of the samples.
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752N UV-Vis spectrophotometer
752N
Used for UV-Vis spectroscopy to analyze the degradation of methylene blue.
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