Enhanced photoelectrochemical water oxidation activity of BiVO4 by coating of Co-phenolic networks as hole-transfer and co-catalyst

Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO4photoanodes

“…6,[19][20][21][22] To overcome these challenges, a number of the strategies have been widely investigated such as; nanostructure control, [23][24][25][26] band engineering, 17,[27][28][29][30][31][32][33][34] heteroatom doping, [35][36][37][38][39][40][41] generation of oxygen vacancy 22,[42][43][44] and the oxygen evolution catalyst (OEC) incorporation. 18,[45][46][47][48][49][50][51][52][53] SnO 2 has been used for the heterojunction formation in the BiVO 4 system which suppresses the back electron-hole recombination process. 17 Additionally, the SnO 2 underneath of BiVO 4 blocks the surface state of the ITO/FTO.…”

Recent Progress in Visible Light Driven Water Oxidation Using Semiconductors Coupled with Molecular Catalysts

“…Since the TANF film can effectively protect the semiconductor from photocorrosion, 92 % of the photocurrent density of the modified photoanodes was maintained after 3 h PEC water oxidation, which further demonstrated excellent stability of the hybrid photoanode. Recently, our group developed Co‐base tannic acid complex as cocatalyst for BiVO 4 photoanode . The photocurrent density of the hybrid photoanode was 4.8 mA cm −2 (1.23 V vs RHE), which was about 3‐fold higher than that of pure BiVO 4 ‐based photoanode.…”

Highly Efficient Electrocatalyst for Oxygen Evolution Reaction: DFT Investigation on Transition Metal‐Tetracyanoquinodimethane Monolayer

“…[4] A rapid progress have been made recently to develop highly-efficient, earth-abundant and cost-effective electrocatalysts. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Although, best OER activities have been exhibited by ruthenium (Ru) and iridium (Ir) based noble metal oxides, [5,6] the high costs and low abundance of these materials limit their practical scalable applications. [7] Thus, it has become highly essential to design or search for alternative electrocatalysts with low-cost and earth abundant having catalytic performances comparable to those of Ru/Ir based oxide materials.…”

“…However, the sluggish dynamics of the (OER) reaction calls for high overpotential in order to overcome the activation energy barrier, resulting in a decrease of energy efficiency [3] . Hence the development of renewable technology demands to develop cost‐effective electrocatalysts with low overpotential and improved performances [4] . A rapid progress have been made recently to develop highly‐efficient, earth‐abundant and cost‐effective electrocatalysts [2–17] …”