%0 Journal Article %J ACS Applied Nano Materials %D 2021 %T Co-decorated tellurium nanotubes for energy storage applications %A Bhol, Prangya %A Swain, Swarnalata %A Jena, Satyaranjan %A Bhatte, Kushal %A Rout, Chandra Sekhar %A Saxena, Manav %A Jadhav, Arvind H. %A Samal, Akshaya K. %K cobalt %K nanotubes %K pseudocapacitors %K surfactant %K Tellurium %K template %X This paper explicitly discusses the synthesis of Co-decorated Te nanotubes (NTs) using Te NTs as the sacrificial template and the evaluation of their electrochemical performance. First, one-dimensional (1D) Te NTs were synthesized and characterized by spectroscopic and microscopic tools such as UV-visible spectroscopy, X-ray diffraction spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, and energy-dispersive X-ray spectroscopy analyses. The as-prepared hexagonal Te NTs (h-Te NTs) possess diameters of about 35 +/- 5 nm and lengths of about 500 +/- 50 nm and were used for the synthesis of Co-decorated Te NTs. The 1D nanostructure with excellent conductivity enables the material to show excellent electrochemical performance. The asymmetric assembly of the CoTe-2//AC electrode material displayed a high specific capacitance of 147 F g(-1) (specific capacity, 162 C g(-1) at a current density of 2 A g(-1) in 4 M KOH electrolyte. In addition to that, the assembly of CoTe-2//AC achieved an excellent energy density of 51.1 W h kg(-1) at a power density of 2294 W kg(-1) and confirmed the as-synthesized Co-decorated Te NTs to be an excellent electrode material. %B ACS Applied Nano Materials %V 4 %P 9008-9021 %8 SEP %G eng %N 9 %9 Article %3 Foreign %4 5.097 %R 10.1021/acsanm.1c01613