A new inorganic-organic hybrid framework microporous material Cd 3(BDC) 0.5(BTC) 2·(DMF)(H 2O)·3DMF·H 3O·H 2O, in which two kinds of carboxylate ligands coordinate with cadmium ions synchronously, ...A new inorganic-organic hybrid framework microporous material Cd 3(BDC) 0.5(BTC) 2·(DMF)(H 2O)·3DMF·H 3O·H 2O, in which two kinds of carboxylate ligands coordinate with cadmium ions synchronously, was obtained under a mild synthesis condition. The titled compound is crystallized in a monoclinic system, space group P2(1)/c with a=1.584 7(7) nm, b=1.426 7(6) nm, c=1.936 3(6) nm, β=113.186(7)°, V=4.024 6(3) nm 3, Z=4, D X=1.947 mg/m 3, M r=1 179.92, μ=1.662 mm -1, F(000)=2 344, R=0.074 8, wR=0.215 1. Three cadmium centers link with each other through BDC or BTC ligand to form a 3-D open framework.展开更多
In this paper, a novel polymeric complex [MnNa（Salicylate）2（CH3OH）（H2O）]n·0.5nH2O was obtained and characterized by IR spectra, elemental analysis and single crystal X-ray diffraction. The titled complex is...In this paper, a novel polymeric complex [MnNa（Salicylate）2（CH3OH）（H2O）]n·0.5nH2O was obtained and characterized by IR spectra, elemental analysis and single crystal X-ray diffraction. The titled complex is crystallized in triclinic system, space group P1 with a=0.763 82（15） nm, b= 1.037 1（2） nm, c=1.290 9（3） nm, α= 103.59（3）°, β=104.65（3）°, γ=109.50（3）°, V=0.873 6（3） nm 3, Z=2, Dc=1.556 Mg/m 3, Mr=409.20, μ=0.823 mm -1, F（000）=418, R=0.0614, wR= 0.147 6. The activity in catalyzing the superoxygen anionic free radical dismutation was determinated.展开更多
分别采用氢氧化物共沉淀、碳酸盐共沉淀、喷雾干燥的方法合成了层状α-Na Fe O2结构的富锂正极材料0.5Li2Mn O3·0.5Li(Ni1/3Co1/3Mn1/3)O2,通过X射线衍射分析(XRD)、扫描电子显微镜(SEM)和电化学性能测试对不同合成方法所得的样品...分别采用氢氧化物共沉淀、碳酸盐共沉淀、喷雾干燥的方法合成了层状α-Na Fe O2结构的富锂正极材料0.5Li2Mn O3·0.5Li(Ni1/3Co1/3Mn1/3)O2,通过X射线衍射分析(XRD)、扫描电子显微镜(SEM)和电化学性能测试对不同合成方法所得的样品进行了表征。实验结果表明:氢氧化物共沉淀合成的前驱体所制备的正极材料0.5Li2Mn O3·0.5Li(Ni1/3Co1/3Mn1/3)O2具有良好的电化学性能,0.05C倍率下首次放电容量可达247.1 m A·h/g,0.2C倍率条件下经过50次循环,容量保持率为98.7%。展开更多
文摘A new inorganic-organic hybrid framework microporous material Cd 3(BDC) 0.5(BTC) 2·(DMF)(H 2O)·3DMF·H 3O·H 2O, in which two kinds of carboxylate ligands coordinate with cadmium ions synchronously, was obtained under a mild synthesis condition. The titled compound is crystallized in a monoclinic system, space group P2(1)/c with a=1.584 7(7) nm, b=1.426 7(6) nm, c=1.936 3(6) nm, β=113.186(7)°, V=4.024 6(3) nm 3, Z=4, D X=1.947 mg/m 3, M r=1 179.92, μ=1.662 mm -1, F(000)=2 344, R=0.074 8, wR=0.215 1. Three cadmium centers link with each other through BDC or BTC ligand to form a 3-D open framework.
文摘In this paper, a novel polymeric complex [MnNa（Salicylate）2（CH3OH）（H2O）]n·0.5nH2O was obtained and characterized by IR spectra, elemental analysis and single crystal X-ray diffraction. The titled complex is crystallized in triclinic system, space group P1 with a=0.763 82（15） nm, b= 1.037 1（2） nm, c=1.290 9（3） nm, α= 103.59（3）°, β=104.65（3）°, γ=109.50（3）°, V=0.873 6（3） nm 3, Z=2, Dc=1.556 Mg/m 3, Mr=409.20, μ=0.823 mm -1, F（000）=418, R=0.0614, wR= 0.147 6. The activity in catalyzing the superoxygen anionic free radical dismutation was determinated.
文摘分别采用氢氧化物共沉淀、碳酸盐共沉淀、喷雾干燥的方法合成了层状α-Na Fe O2结构的富锂正极材料0.5Li2Mn O3·0.5Li(Ni1/3Co1/3Mn1/3)O2,通过X射线衍射分析(XRD)、扫描电子显微镜(SEM)和电化学性能测试对不同合成方法所得的样品进行了表征。实验结果表明:氢氧化物共沉淀合成的前驱体所制备的正极材料0.5Li2Mn O3·0.5Li(Ni1/3Co1/3Mn1/3)O2具有良好的电化学性能,0.05C倍率下首次放电容量可达247.1 m A·h/g,0.2C倍率条件下经过50次循环,容量保持率为98.7%。
