Core‐Shell‐Type All‐Inorganic Heterometallic Nanoclusters: Record High‐Nuclearity Cobalt Polyoxoniobates for Visible‐Light‐Driven Photocatalytic CO2 Reduction

Only rarely have polyoxometalates been found to form core–shell nanoclusters. Here, we succeeded in isolating a series of rare giant and all‐inorganic core–shell cobalt polyoxoniobates (Co−PONbs) with diverse shapes, nuclearities and original topologies, including 50‐nuclearity Co12Nb38O132, 54‐nucl...

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