Journal Article inverse opals organic-inorganic materials photoelectrochemical water splitting CO2 reduction reaction Research Support, Non-U.S. Gov't Rh and Rh alloys amorphous amorphous structures cadmium sulfide copper defective structure dynamically mediated ethanol oxidation reaction hemicapsule heterostructures heterophases heterostructures indole synthesis light trapping metal–organic frameworks nanoflake array nanoplates nanostructure switchable catalytic selectivity tandem catalysis ultrathin nanosheets unconventional phases versatile structures engineering