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Cobalt phosphide/reduced graphene oxide (Co2P/RGO) nanocomposites were synthesised successfully via a facile in-situ solvothermal method. Co2P nanoparticles with a mean size of 80 nm anchor uniformly and firmly on the surface of RGO nanosheets, which not only avoid the aggregation of Co2P nanoparticles, but also prevent the restacking of RGO nanosheets. Used as a degradation agent, the as-prepared composites exhibit superior adsorption degradation activity for various organic dyes. As an anode material for Li-ion battery, the Co2P/RGO composites also show good electrochemical properties and its initial discharge specific capacity of the as-prepared composites can achieve to 900 mAh/g. The reason might be attributed to the interfacial interaction and the effective combination of Co2P nanoparticles with RGO nanosheets.
References
-
-
1)
-
9. Liu, S., Zhang, H., Xu, L., et al: ‘Solvothermal preparation of tin phosphide as a long-life anode for advanced lithium and sodium ion batteries’, J. Power Sources, 2016, 304, , pp. 346–353 (doi: 10.1016/j.jpowsour.2015.11.056).
-
2)
-
12. Guo, Q., Ru, Q., Wang, B., et al: ‘Design and synthesis of mesoporous honeycomb-like CoP/Co2P hybrids as anode with a high cyclic stability in lithium-ion batteries’, Energy Technol., 2017, 5, (12), pp. 2294–2299 (doi: 10.1002/ente.201700337).
-
3)
-
2. Liu, S., He, X., Zhu, J.: ‘Cu3p/RGO nanocomposite as a new anode for lithium-ion batteries’, Sci. Rep., 2016, 6, p. 35189 (doi: 10.1038/srep35189).
-
4)
-
19. Lopez, M.C., Ortiz, G.F., Tirado, J.L.: ‘A functionalized Co2P negative electrode for batteries demanding high li-potential reaction’, J. Electrochem. Soc., 2012, 159, (8), pp. A1253–A1261 (doi: 10.1149/2.052208jes).
-
5)
-
15. Wang, P., Li, X., Xu, Z., et al: ‘Tunable graphene/indium phosphide heterostructure solar cells’, Nano Energy, 2015, 13, pp. 509–517 (doi: 10.1016/j.nanoen.2015.03.023).
-
6)
-
6. Zhao, Y.H., Zhang, Y.F., Wu, Z.K., et al: ‘Synergic enhancement of thermal properties of polymer composites by graphene foam and carbon black’, Composites B Eng., 2016, 84, pp. 52–58 (doi: 10.1016/j.compositesb.2015.08.074).
-
7)
-
1. Butler, S.Z., Hollen, S.M., Cao, L.Y.: ‘Progress, challenges, and opportunities in two-dimensional materials beyond graphene’, ACS Nano, 2013, 7, (4), pp. 2898–2926 (doi: 10.1021/nn400280c).
-
8)
-
21. Sun, H., Sun, X., Hu, T., et al: ‘Graphene-wrapped mesoporous cobalt oxide hollow spheres anode for high-rate and long-life lithium ion batteries’, J. Phys. Chem. C, 2014, 118, (5), pp. 2263–2272 (doi: 10.1021/jp408021m).
-
9)
-
5. Ding, Q., Shi, Y., Chen, M., et al: ‘Ultrafast dynamics of plasmon-exciton interaction of Ag nanowire-graphene hybrids for surface catalytic reactions’, Sci. Rep., 2016, 6, p. 32724 (doi: 10.1038/srep32724).
-
10)
-
8. Brock, S.L., Senevirathne, K.: ‘Cheminform abstract: recent developments in synthetic approaches to transition metal phosphide nanoparticles for magnetic and catalytic applications’, J. Solid State Chem., 2008, 181, (7), pp. 1552–1559 (doi: 10.1016/j.jssc.2008.03.012).
-
11)
-
7. Wang, B., Pantelides, S.T.: ‘Controllable healing of defects and nitrogen doping of graphene by CO and NO molecules’, Phys. Rev. B, 2011, 83, (83), pp. 2689–2695.
-
12)
-
13. Ni, Y., Li, J., Jin, L., et al: ‘Co2p nanostructures constructed by nanorods: hydrothermal synthesis and applications in the removal of heavy metal ions’, New J. Chem., 2009, 33, (10), pp. 2055–2059 (doi: 10.1039/b907788j).
-
13)
-
10. Lu, Y., Wang, X., Mai, Y., et al: ‘Ni2p/graphene sheets as anode materials with enhanced electrochemical properties versus lithium’, J. Phys. Chem. C, 2012, 116, (42), pp. 22217–22225 (doi: 10.1021/jp3073987).
-
14)
-
17. Yu, A., Roes, I., Davies, A., et al: ‘Ultrathin, transparent, and flexible graphene films for supercapacitor application’, Appl. Phys. Lett., 2010, 96, (96), pp. 253105–253105-3 (doi: 10.1063/1.3455879).
-
15)
-
20. Lu, Y., Tu, J.P., Xiang, J.Y., et al: ‘Improved electrochemical performance of self-assembled hierarchical nanostructured nickel phosphide as a negative electrode for lithium ion batteries’, J. Phys. Chem. C, 2011, 115, (48), pp. 23760–23767 (doi: 10.1021/jp208204u).
-
16)
-
3. Lee, H., Nagaishi, T., Phan, D.N., et al: ‘Effect of graphene incorporation in carbon nanofiber decorated with TiO2 for photoanode applications’, RSC Adv., 2017, 7, (11), pp. 6574–6582 (doi: 10.1039/C6RA26301A).
-
17)
-
9. Ni, Y., Li, J., Zhang, L., et al: ‘Urchin-like Co2P nanocrystals: synthesis, characterization, influencing factors and photocatalytic degradation property’, Mater. Res. Bull., 2009, 44, (5), pp. 1166–1172 (doi: 10.1016/j.materresbull.2008.09.041).
-
18)
-
16. Lu, A., Zhang, X., Chen, Y., et al: ‘Synthesis of Co2P/graphene nanocomposites and their enhanced properties as anode materials for lithium ion batteries’, J. Power Sources, 2015, 295, pp. 329–335 (doi: 10.1016/j.jpowsour.2015.06.154).
-
19)
-
4. Gao, H., Mo, Z., Guo, R., et al: ‘Formation of snowflake-like CdS/reduced graphene oxide composite for efficient photocatalytic organic dye degradation’, J. Mater. Sci. Mater. Electron., 2018, 29, (7), pp. 5944–5953 (doi: 10.1007/s10854-018-8567-5).
-
20)
-
11. Yun, G., Guan, Q., Li, W.: ‘The synthesis and mechanistic studies of a highly active nickel phosphide catalyst for naphthalene hydrodearomatization’, RSC Adv., 2017, 7, (14), pp. 8677–8687 (doi: 10.1039/C7RA00250E).
-
21)
-
22. Yang, D., Zhu, J., Rui, X., et al: ‘Synthesis of cobalt phosphides and their application as anodes for lithium ion batteries’, ACS Appl. Mater. Interfaces, 2013, 5, (3), pp. 1093–1099 (doi: 10.1021/am302877q).
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