WO₃ nanosponge photoanodes with high applied bias photon-to-current efficiency for solar hydrogen and peroxydisulfate production

Abstract

We prepared WO3 nanosponge photoanodes by nanoparticle/solution hybrid dispersion–deposition for production of “high-value-added” reagents.

Tungsten Trioxide Nanostructures for Photoelectrochemical Water Splitting: Material Engineering and Charge Carrier Dynamic Manipulation

“…Park and co‐workers fabricated patterned WO 3 microdisc arrays by electrodeposition . Besides, the WO 3 with morphology of nanoflower (Figure d), nanosponge and so on have also been widely investigated . The recent works about WO 3 photoanodes with various morphologies are summarized in Table 1 .…”

Photoelectrochemical Hydrogen Peroxide Production from Water on a WO3/BiVO4 Photoanode and from O2 on an Au Cathode Without External Bias

“…The half-cell-applied bias photon-tocurrent efficiency (half-cell-ABPE) allowsi ndividual calculation of the solar energy conversion efficiency of the photoanode or the photocathode, by using the I-V curve measuredf or at hree-electrode system, and this is frequently utilizedt od eterminet he performance of ap hotoanode or photocathode. [59][60][61] As discussed in the Introduction,a lmost all photoelectrochemical or photocatalytic H 2 O 2 productionsh ave generally been performedb yt he two-electron reduction of O 2 . [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49] The development of ap hotoelectrochemicals ystem for producing H 2 O 2 with high current efficiency by using H 2 Oa nd O 2 as raw materials [ Figure 1(A) and (B), Eq.…”

Enhanced Charge Transfer Process in Morphology Restructured TiO2 Nanotubes via Hydrochloric Acid Assisted One Step In‐Situ Hydrothermal Approach

“…All the potentials mentioned in the present work were originally measured with reference to an Ag/AgCl electrode (sat. KCl), and were converted to the reversible hydrogen electrode (RHE) scale using the Nernst Equation : …”

“…All the potentials mentioned in the present work were originally measured with reference to an Ag/AgCl electrode (sat. KCl), and were converted to the reversible hydrogen electrode (RHE) scale using the Nernst Equation (2): [43] V RHE ¼ V Ag=AgCl þ 0:059pH þ V 0 Ag=AgCl (2) where, V RHE is the converted potential vs. RHE in V vs. RHE (V RHE ), V Ag/AgCl is the experimental potential measured against the Ag/AgCl reference electrode in V vs. Ag/AgCl (V Ag/AgCl ), and V 0 Ag/AgCl is the standard potential (0.1976 V) of Ag/AgCl at saturated KCl under ambient condition. The photocurrent density-time (J-t) curves were measured at 1.23 V vs. RHE.…”