Effect of ball milling on electrochemical characteristics of walnut shell-bas…

Abstract. Walnut shell-based activated carbons (WS-ACs) were prepared by chemical activation with KOH and used as an electrode material for electrical double layer capacitors (EDLCs). The WS-AC samples were characterized before and after ball milling for 8 h to assess their electrochemical characteristics as carbon electrodes for EDLCs. Nitrogen adsorption analyses showed that the Brunauer�…