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First of all, this work was completed at the Chonnam National University, Korea by the rst author of this paper Mr Karthikeyan. (1) The main scope of our work is to facilitate the synthesis of Fe3O4–graphene (Fe–GNS) nanoparticles using a simple and green synthesis method and to study the effect of the preparation technique on their capacitive performance. Since the preparation conditions affect the electrochemical performance of any cathode materials (Fe3O4-conductive carbon composites have already been prepared using various methods), a novel microwave method was adopted to fabricate the Fe–GNS composites and their application as capacitors studied. In our work, we have achieved excellent capacitive performance of the Fe–GNS system, which was attributed to its morphological features (explained well in the manuscript itself). (2) Regarding the weight, the weight of the active material in the electrode was 0.3125 mg. The weight difference was about 0.4 mg and the active material in the electrode was about 0.3125 ( 79 wt%). (3) With reference to the article published in J. Mater. Chem., 2011, 21, 3422–3427, they have achieved 480 F g 1 at 5 A g 1 as shown in Fig. 3b. As you can see from Fig. 3b, the discharge time could be 43 s, voltage is 1 V and current is 5 A g 1 and the authors reported the capacitance of 480 F g . (4) About your question on capacitive performance, the rate performance of the Fe–GNS was resulted from its morphological feature as explained well in the paper. Since the open system formed during the synthesis of Fe–GNS can accommodate more electrolyte within the composite structure, providing a exible structure against inherent mechanical stresses formed during the charge discharge at

rsc advances

Reply to the ‘Comment on “Microwave synthesis of graphene/magnetite composite electrode material for symmetric supercapacitor with superior rate performance”’ by Rajaperumal M., <i>RSC Adv.</i>, 2017, 7, DOI: 10.1039/c7ra04129b

Reply to the ‘Comment on “Microwave synthesis of graphene/magnetite composite electrode material for symmetric supercapacitor with superior rate performance”’ by Rajaperumal M., RSC Adv., 2017, 7, DOI: 10.1039/c7ra04129b