Abstract. The mckelveyite group consisting of seven carbonate minerals – mckelveyite-(Y), ewaldite, weloganite, donnayite-(Y), alicewilsonite-(YCe), alicewilsonite-(YLa), and bainbridgeite-(YCe) is formally established. general formula the A3B3(CO3)6 ⋅ 3H2O, where A= Na, Ca, Y, Zr B= Sr, Ba, Ce, La. Different order–disorder modifications are known resulting in triclinic, monoclinic, hexagonal, ...

Selective oxidation is still a challenge for targeted conversion of biomass derived substance to high-value added products. Herein we report an efficient electrochemical strategy transform phenol into p-benzoquinone, by tandem oxidations CuSO4 and CoSO4 catalysts in electrolyte. Co3+ generated at the anode from Co2+ diffuses solution reacts with form hydroquinone, which subsequently oxidized Cu...