期刊
NEW JOURNAL OF CHEMISTRY
卷 38, 期 12, 页码 6147-6151出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nj01358a
关键词
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资金
- National Natural Science Foundation of China [21071005, 21271006]
- Anhui Normal University [2011rcpy038, 2014xmpy13, 2014cxjj13]
- Undergraduate Innovation Training Plan of Anhui Normal University [201310370080, 201410370199]
This study demonstrated the preparation of Co0.85Se bundle-like nanostructures (BNs) by a template-directed approach under solvothermal conditions. The Co0.85Se BNs were utilized as catalysts in the reduction of 4-nitrophenol in the presence of NaBH4. The kinetics of the reduction of 4-nitrophenol at three different reaction temperatures were investigated to evaluate the catalytic activity of the Co0.85Se BNs. The activation energy (E-a), activation enthalpy (Delta H-double dagger), and activation entropy (Delta S-double dagger) of the Co0.85Se BNs and Co0.85Se nanoparticles (NPs) are 14.66 kJ mol(-1), 12.15 kJ mol(-1), 42.51 J mol(-1) K-1, and 17.78 kJ mol(-1), 16.55 kJ mol(-1), 50.66 J mol(-1) K-1, respectively. The above results revealed that the Co0.85Se BNs exhibited a higher catalytic performance for the hydrogenation of 4-nitrophenol by NaBH4 than that of the Co0.85Se NPs at room temperature. It is believed that the prepared Co0.85Se BNs have potential applications in catalysis.
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