High-performance supercapacitors of carboxylate-modified hollow carbon nanospheres coated on flexible carbon fibre paper: Effects of oxygen-containing group contents, electrolytes... by Phattharasupakun, N, Wutthiprom, J, Suktha, P, Iamprasertkun, P, Chanlek, N, Shepherd, C, Hadzifejzovic, E, Moloney, M, Foord, J, Sawangphruk, M