title: Leaf-architectured 3D hierarchical artificial photosynthetic system of perovskite titanates towards CO₂ photoreduction into hydrocarbon fuels.
abstract: The development of an "artificial photosynthetic system" (APS) having both the analogous important structural elements and reaction features of photosynthesis to achieve solar-driven water splitting and CO₂ reduction is highly challenging. Here, we demonstrate a design strategy for a promising 3D APS architecture as an efficient mass flow/light harvesting network relying on the morphological replacement of a concept prototype-leaf's 3D architecture into perovskite titanates for CO₂ photoreduction into hydrocarbon fuels (CO and CH₄). The process uses artificial sunlight as the energy source, water as an electron donor and CO₂ as the carbon source, mimicking what real leaves do. To our knowledge this is the first example utilizing biological systems as "architecture-directing agents" for APS towards CO₂ photoreduction, which hints at a more general principle for APS architectures with a great variety of optimized biological geometries. This research would have great significance for the potential realization of global carbon neutral cycle.
authors.affiliation: International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan.
authors.forename: Han
authors.initials: H
authors.lastname: Zhou
authors.forename: Jianjun
authors.initials: J
authors.lastname: Guo
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.forename: Tongxiang
authors.initials: T
authors.lastname: Fan
authors.forename: Di
authors.initials: D
authors.lastname: Zhang
authors.forename: Jinhua
authors.initials: J
authors.lastname: Ye
mesh_terms: D032701:Biomimetics / Q000379:methods*; D017610:Calcium Compounds / Q000737:chemistry* / Q000528:radiation effects; D002245:Carbon Dioxide / Q000737:chemistry* / Q000528:radiation effects; D006838:Hydrocarbons / Q000138:chemical synthesis*; D008027:Light; D010084:Oxidation-Reduction / Q000528:radiation effects; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D010788:Photosynthesis; D018515:Plant Leaves / Q000737:chemistry* / Q000528:radiation effects; D014025:Titanium / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D017610:Calcium Compounds; D006838:Hydrocarbons; D010087:Oxides; C059910:perovskite; D002245:Carbon Dioxide; D014025:Titanium