Unprecedented InOOH\nHexagonal Nanoplates for Highly\nSelective Synthesis of Methanol via Moderately Photothermal CO<sub>2</sub> Hydrogenation

Indium oxyhydroxide (InOOH) hexagonal nanoplates with\nunprecedented\nmineral phase were successfully prepared to drive high-selectivity\nphotothermal methanol (CH<sub>3</sub>OH) production from CO<sub>2</sub> hydrogenation under atmospheric pressure with the feeding ration\nof CO<sub>2</sub> to H<sub>2</sub> of 1:1. The performance is significantly\ndifferent from that of conventional cubic and rhombic In<sub>2</sub>O<sub>3</sub>, with which only CO was produced under the same conditions.\nThe exposed {001} surfaces of the InOOH nanoplates with freestanding\nactive sites can effectively promote the activation of C–O\nbonds and the dissociation of H<sub>2</sub>, and subsequently successive\nhydrogenation of the forming *CO, which consequently reduce the reaction\nbarrier for CH<sub>3</sub>OH generation significantly. This work may\nprovide guidance for modulating the physical phase of the catalytic\nsystem to achieve a highly selective generation of CH<sub>3</sub>OH\nfrom photothermal CO<sub>2</sub> hydrogenation.