Carbon Nanofibers as Supporting Substrate for Growth of Polyaniline Nanorods on FeO Nanoneedles toward Electrochemical Energy Storage.

Iron-oxide (FeO) nanoneedles were first in situ grown on the surface of carbon nanofibers (CNFs) using hydrothermal and N annealing process, and then polyaniline (PANI) was coated on the FeO nanoneedles to form network-like nanorods through dilute solution polymerization. The PANI/FeO/CNFs binder-free electrode exhibited a high specific capacitance of 603 F/g at 1 A/g with good rate capability. (The capacitance loss was about 48.

In Situ Growth of MnO Nanosheets on a Graphite Flake as an Effective Binder-Free Electrode for High-Performance Supercapacitors.

In this work, manganese dioxide (MnO) nanosheets in situ loaded on a high-purity graphite flake (GF) were prepared by one-step hydrothermal deposition. It was found that the specific capacitance value of a single MnO/GF electrode was 882 F/g at a current density of 1.0 A/g in a KOH electrolyte, and the specific capacitance retention of the MnO/GF electrode can reach about 90.