Overall, the proposed reaction mechanism for Fe4-WS is analogous to that found for Co4-WS, despite their electronic differences. The potential limiting step is a proton-coupled electron transfer event yielding the active S2 (Fe IV O) species, which …

Polyoxometalates (POMs) are polyatomic ions with closed three-dimensional frameworks. Their unique structure contains a large number of redox active sites, making them promising electrocatalysts...

The tetracobalt Weakley sandwich [CoII 4(H2O)2(B-α-PW9O34)2]10- (Co4-WS) has been one of the most extensively studied. We have compared its activity with that of the iron analog [FeIII 4(H2O)2(B-α-PW9O34)2]6- (Fe4-WS) looking for the electronic effects determining their activity.

2021年5月19日 · Overall, the proposed reaction mechanism for Fe4-WS is analogous to that found for Co4-WS, despite their electronic differences. The potential limiting step is a proton-coupled electron transfer event yielding the active S2 (Fe IV [double bond, length as m-dash]O) species, which receives a water nucleophilic attack to form the O-O bond.

2021年5月19日 · The tetracobalt Weakley sandwich [CoII4(H2O)2(B-α-PW9O34)2]10− (Co4-WS) has been one of the most extensively studied. We have compared its activity with that of the iron analog [FeIII4(H2O)2(B-α-PW9O34)2]6− (Fe4-WS) looking for …

The tetracobalt Weakley sandwich [CoII4(H2O)2(B-α-PW9O34)2]10– (Co4-WS) has been one of the most extensively studied. We have compared its activity with that of the iron analog [FeIII4(H2O)2(B-α-PW9O34)2]6– (Fe4-WS) looking for the …

2024年1月12日 · In this paper, we used two synthesis strategies to prepare the nanocomposite Co4-POM@Co-PGDY (Co4-POM: the Kegging-type microcrystals of K10[Co4(PW9O34)2] and Co-PGDY: cobalt-porphyrin linked graphdiyne) with excellent activity for HER.

2022年6月1日 · Herein, we report a 1 T-WS 2 in ultrathin nanosheet arrays grafted with Co 4 S 3 on conductive carbon cloth (CC) (1 T-Co 4 S 3-WS 2 /CC) through a feasible in-situ growth and vulcanization. The optimized 1 T-Co 4 S 3 -WS 2 /CC catalyst exhibits an impressive electrocatalytic activity and remarkable stability with the oxygen/hydrogen evolution ...

2024年4月22日 · Here we report the synthesis of an ordered, mixed-metal cobalt–iron Weakley archetype [CoII2(H2O)2FeIII2(CoIIW9O34)2]¹⁴⁻ (Co2Fe2-WS), which unexpectedly highlights the strong influence of ...

2021年5月19日 · Cobalt polyoxometalates (Co-POMs) have emerged as promising water oxidation catalysts (WOCs), with the added advantage on their molecular nature despite being metal oxides fragments. In...