Sakthivel M.Sukanya R.Chen S.-M.Ho K.-C.2019-05-172019-05-17201819448244https://scholars.lib.ntu.edu.tw/handle/123456789/408640The electronic conductivity and electrocatalytic activity of metal chalcogenides are normally enhanced by following the ideal strategies such as substitution/doping of heterogeneous atoms and hybridization of highly conductive carbon supportive materials. Here, a rare earth element (samarium) was substituted with MoSe 2 using the simple hydrothermal method. The lattice distortion due to the substitution of Sm 3+ with MoSe 2 was clearly observed by using high-resolution transmission electron microscopy analysis. As a consequence, the prepared SmMoSe 2 nanorod was encapsulated with graphene oxide (GO) sheets by using ultrasonication process. Furthermore, the GO-encapsulated SmMoSe 2 nanocomposite modified glassy carbon electrode (GO@SmMoSe 2 /GCE) was used for the sensing of chloramphenicol. The results showed that the GO@SmMoSe 2 /GCE revealed the superior electrocatalytic activity with low detection (5 nM) and sensitivity (20.6 £gA £gM -1 cm -2 ) to electrochemical detection of proposed analyte. It indicates that the substitution of Sm 3+ and encapsulation of GO significantly increased both the electrical conductivity and electrocatalytic activity of MoSe 2 . ? 2018 American Chemical Society.chloramphenicolelectrochemical sensorgraphene oxidemolybdenum diselenidesamarium[SDGs]SDG3journal article10.1021/acsami.8b120062-s2.0-85052300519https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052300519&doi=10.1021%2facsami.8b12006&partnerID=40&md5=dcd53b71e4e8cec6a1dfeb7d566db2c8