| Bi2S3 is an important semiconductor material. It has received widespread attention, owing to its special physicochemical properties. However, the unique properties of Bi2S3 nanomaterial are not only related to its composition and structure, but also greatly depend on its particle size and morphology. Therefore, preparing Bi2S3 nanoparticles with novel morphologies and exploring their unique properties are very important. In this paper, a series of Bi2S3 nanoparticles with novel morphologies are synthesized by hydrothermal, solvothermal and general liquid phase methods with different reactants, such as cruciate flower like, chrysanthemum like, dandelion like, dumbbell like, rode bundle like and so on.Here, cruciate flower and chrysanthemum like Bi2S3 nanoparticles are chosen to be used for further researches. In order to optimize the experiment parameters, a series of experiment conditions have been explored, such as the molar ratio of Bi and S, reaction temperature, reaction time and so on. In the optimal reaction systems, cruciate flower like Bi2S3 nanoparticles constructed by orthogonal petals and chrysanthemum like Bi2S3 nanoparticles constructed by dozens of petals with different sizes have been obtained. XRD characterizations reveal that the diffraction peaks of these nanoparticles all can be attributed to the pure orthorhombic phase. SEM patterns show that these nanoscaled particles all process unique nanostructures, and they are fabricated by thin slices. In the cyclic voltammetry(CV) measurement to the cruciate flower like Bi2S3 nanoparticles, an hydrogen adsorption-desorption process is found to be happened on the surfaces of the as-prepared nanoparticles, suggesting that the particles might stand a chance to be used in the field of electrochemical hydrogen storage materials studies. The same phenomenon appears in the CV curve of chrysanthemum like Bi2S3 nanoparticles, suggesting its potential application in the flied of electrochemical hydrogen storage. |
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