CAJ | 학술논문

采用均相沉淀法分别制备了α-Ni（ OH）2和α-Ni（ OH）2/GO复合材料，并对其微观结构和电化学性能进行了考察。 XRD分析表明α-Ni（OH）2/GO 复合材料层间距更大； FT -IR 表明α-Ni（OH）2/GO复合材料中NO3-振动吸收峰峰形逐渐宽化、强度减弱； FESEM图像表明α-Ni（OH）2/GO复合材料结构更加致密。采用CV、 EIS和充放电测试表征了合成样品的电化学性能，发现α-Ni（OH）2/GO复合材料具有相对较低的阻抗、较好的循环稳定性和较高的放电比容量。
채용균상침정법분별제비료α-Ni（ OH）2화α-Ni（ OH）2/GO복합재료，병대기미관결구화전화학성능진행료고찰。 XRD분석표명α-Ni（OH）2/GO 복합재료층간거경대； FT -IR 표명α-Ni（OH）2/GO복합재료중NO3-진동흡수봉봉형축점관화、강도감약； FESEM도상표명α-Ni（OH）2/GO복합재료결구경가치밀。채용CV、 EIS화충방전측시표정료합성양품적전화학성능，발현α-Ni（OH）2/GO복합재료구유상대교저적조항、교호적순배은정성화교고적방전비용량。
α-Ni( OH) 2 and α-Ni( OH) 2/GO composite material is prepared by homogeneous precipitation meth-od and their micro-structures and electrochemical properties are studied.XRD tests reveal that the α-Ni(OH)2/GO composite material has larger inter layer spacing.The FT-IR shows that the vibrational absorption of NO3-in the α-Ni(OH)2/GO composites weakens and expands.FESEM images show that α-Ni(OH)2/GO composite material has more dense structure.The electrochemical performances of the α-Ni(OH)2 and α-Ni(OH)2/GO composite material are characterized by cyclic voltammetry ( CV ) , electrochemical impedance spectroscopy (EIS),and charge/discharge tests.The results demonstrate that α-Ni(OH)2/GO composite material has much better electrochemical performances ,such as smaller impedance ,better electrochemical reaction reversibility and larger specific discharge capacity .