Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery

High-power positive electrode based on synergistic effect of N- and WO3 -decorated carbon felt for vanadium redox flow batteries

“…However, the discussion is limited to fundamental studies in three-electrode cell (Interlaced WO 3 -carbon nanotube nanocomposite electrodeposited on graphite as a positive electrode in vanadium redox flow battery) or their application in a flow cell with a very low current density (ca. 50 mAcm -2 ) [13]. Recently, Labkem.…”

“…For example, MWCNTs [5], graphene nanosheets and carbon nanofibers [6,7], functionalization of carbon surface as N-and Ocontaining groups [8], metals such as Pt [6], Ir [9] and Bi [10] and metal oxides Mn 3 O 4 [11,12], WO 3 [13,14], TiO 2 [15], CeO 2 [16], PbO 2 [17], and Nb 2 O 5 [18] were deposited onto the CF supports to prepare modified electrodes. However, although all this research demonstrated an improvement in electrochemical kinetics, the enhanced power density is rarely discussed in the literature as a complementary performance evaluation to the charge/discharge experiments.…”

Synergistic Catalyst–Support Interactions in a Graphene–Mn3O4Electrocatalyst for Vanadium Redox Flow Batteries

“…18,26 A somewhat separate area of research focuses on the development of metal oxide electrocatalysts, such as Nb 2 O 5 , WO 3 , Mn 3 O 4, and TiO 2 , supported on high surface area carbons. [27][28][29] In particular, the promising electrocatalytic activity of Mn 3 O 4 supported on C felt electrodes has been clearly demonstrated by Kim 29 using cyclic 5 voltammetry but it has been pointed out that the durability of such catalysts in the acidic environment within VRFBs requires further exploration. 12 An emerging and promising trend in electrocatalyst development is the exploitation of synergistic interactions between the electrocatalyst and electrocatalyst support.…”

Cell architecture upswing based on catalyst coated membrane (CCM) for vanadium flow battery

“…Electro-catalyst WO 3 /SAC was prepared by impregnation method as described in our previous work [24]. Super activated carbon (SAC) with large surface area and low graphite degree (Jinzhou Changhong Petrochemical Co., Ltd, surface area: 2900 m 2 g À1 , pore cubage: 1.588 mL g À1 ) served as the support.…”

“…The catalytic mechanism of WO 3 /SAC has been discussed in Ref. [24]. Therefore, the electro-catalyst WO 3 /SAC exhibits much favorable electrochemical activity and kinetic reversibility toward V(IV)/V(V) and V(II)/V(III) redox couples than that of the graphite powder electrode.…”