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Gangaraju, Deepa,Sridhar, Vadahanambi,Lee, Inwon,Park, Hyun Elsevier 2017 JOURNAL OF ALLOYS AND COMPOUNDS Vol.699 No.-
<P><B>Abstract</B></P> <P>Despite its high theoretical capacity of 936 mAhg<SUP>−1</SUP>, when applied as anodes in lithium-ion batteries, manganese oxide, hausmannite(Mn<SUB>3</SUB>O<SUB>4</SUB>) face many practical difficulties due to its poor intrinsic electrical conductivity, huge volume expansion, and pulverization during repetitive charge/discharge cycling processes etc. In this manuscript, we report a simple, fast and facile microwave technique for synthesis of Mn<SUB>3</SUB>O<SUB>4</SUB> embedded in three dimensional nitrogen doped graphene-carbon nanotube network. Our newly developed technique not only effectively reduces graphene oxide but also results in growth of nitrogen doped carbon nanotubes on graphene substrate to give unique mesoporous, 3-D hierarchical carbon nano-architectures. When applied as negative electrode in lithium-ion batteries, our 3D graphene-carbon nanotube hybrids exhibit high capacity of 1337 mAhg<SUP>−1</SUP> even after 300 cycles.</P> <P><B>Highlights</B></P> <P> <UL> <LI> 3-D mesoporous nitrogen doped graphene-CNT-Mn<SUB>3</SUB>O<SUB>4</SUB> (G-Mn@NCNT) are synthesized. </LI> <LI> The lithium ion capacity of G-Mn@NCNT nanocomposites was significantly improved. </LI> <LI> A plausible mechanism for enhanced lithium ion retention is proposed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>In this study, we report a facile microwave procedure for synthesis of manganese catalyzed growth of carbon nanotubes on graphene substrate.</P> <P>[DISPLAY OMISSION]</P>