Abstract
In this work, the effect of charge density and nanomorphology of a metal tip on the output performance of a triboelectric nanogenerator (TENG) is studied. The basic working principle of the TENG is charge transfer after separation of a metal and a polymer. There are different charge densities on different kinds of metal surface nanomorphology, which significantly influences the output performance of the TENG. Copper samples with different nanomorphology were obtained by controlling pH value, current density, electrolyte concentration, and temperature during the electrodeposition of copper. The samples were characterized using XRD and SEM. The output performance of the TENG is closely related to the size, charge density distribution, and shape of the metal nanoparticles.
Highlights
Energy plays a vital role in human society. It is an important material basis for human activities and promotes scientific and technological development and economic growth
The particle size distribution plays a vital role in improving the output performance
We studied the effect of the average particle size on the output efficiency
Summary
Energy plays a vital role in human society. It is an important material basis for human activities and promotes scientific and technological development and economic growth. Size and morphology of nanoscale copper were controlled by adjusting current density, temperature, pH value, and solution concentration during electrodeposition. The enhancement effect of different surface charge density distributions on the output performance of the nanostructured metal TENGs is explained. When solution concentration and current density are high, and when the flow rate of the plating solution is low, the electrodeposited copper nanoscale structures will agglomerate.
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