Bio-inspired assembly of cubane-adjustable polyoxometalate-based high-nuclear nickel clusters for visible light-driven hydrogen evolution

Recent Advances in First‐Row Transition Metal Clusters for Photocatalytic Water Splitting

“…In 2017, Wang and co‐workers reported a series of POM‐based high‐nuclear Ni clusters that contained varying numbers of {Ni 4 O 4 } cubane cores for photocatalytic H 2 evolution. These clusters were [{Ni 4 (OH) 3 (PO 4 )} 4 (A‐PW 9 O 34 ) 4 ] 28− , [{Ni 4 (OH) 3 (PO 4 )} 4 (A‐PW 9 O 34 ) 2 (B‐PW 9 O 34 ) 2 ] 28− , and [{Ni 4 (OH) 3 (VO 4 )} 4 (B‐PW 9 O 34 ) 4 ] 28− . Two identical trivacant isomers of Keggin POM ions, A‐{PW 9 O 34 } 9− and B‐{PW 9 O 34 } 9− , were contained in the three structures.…”

Co/Ni-polyoxotungstate photocatalysts as precursor materials for electrocatalytic water oxidation

“…[4][5][6][7][8][9][10] Polyoxometalates (POMs) are promising WOC candidates, because they combine robustness and structural versatility with the capability of undergoing rapid, reversible, and stepwise multi-electron transfer reactions, and we also refer to key review articles here. [11][12][13][14][15][16] Among the attractive and low cost 3d transition metal water splitting catalysts, cobalt-based homogeneous catalysts and POMs keep attracting intense attention. [17][18][19][20][21][22] Specically, Co-POMs have recently been applied as co-catalysts on photoanodes or for enhanced performance in composite systems.…”

Polyoxometalates: Tailoring metal oxides in molecular dimension toward energy applications

“…Ni 24 cages with calixarene and Pt clusters have been employed to activate the hydrogen evolution reaction . The polyoxometalates with Ni 4 O 4 cubane core are adjusted to enhance H 2 production . Placing the photosensitizer adjacent to the nickel atoms in polyoxometalate has been proved to enhance the hydrogen evolution reaction with a 1476 turnover number when it is integrated into metal organic frameworks .…”

“…Reproduced with permission from Chen et al 177 Copyright Wiley (2017) 177 [Colour figure can be viewed at wileyonlinelibrary.com] Ni 4 O 4 cubane core are adjusted to enhance H 2 production. 162 Placing the photosensitizer adjacent to the nickel atoms in polyoxometalate has been proved to enhance the hydrogen evolution reaction with a 1476 turnover number when it is integrated into metal organic frameworks. 127 Ni-containing polyoxometalate with bipyridine groups has been shown to effectively absorb visible light and photodegrade the methyl orange dye, as well as suppress the undesired oxygen-to-metal charge transfer and water dissolving properties.…”