Institute of Chemical Research of Catalonia (ICIQ) , Av. Paisos Catalans 16, E-43007 Tarragona, Spain.
J Am Chem Soc. 2013 Sep 11;135(36):13270-3. doi: 10.1021/ja406242y. Epub 2013 Sep 3.
The lack of an efficient, robust, and inexpensive water oxidation catalyst (WOC) is arguably the biggest challenge for the technological development of artificial photosynthesis devices. Here we report the catalytic activity found in a cobalt hexacyanoferrate (CoHCF) Prussian blue-type coordination polymer. This material is competitive with state-of-the-art metal oxides and exhibits an unparalleled long-term stability at neutral pH and ambient conditions, maintaining constant catalytic rates for weeks. In addition to its remarkable catalytic activity, CoHCF adds the typical properties of molecule-based materials: transparency to visible light, porosity, flexibility, processability, and low density. Such features make CoHCF a promising WOC candidate for advancement in solar fuels production.
缺乏高效、稳定且廉价的水氧化催化剂（WOC）是人工光合作用器件技术发展面临的最大挑战。在此，我们报告了在钴六氰合铁酸盐（CoHCF）普鲁士蓝型配位聚合物中发现的催化活性。该材料与最先进的金属氧化物具有竞争力，并在中性 pH 值和环境条件下表现出无与伦比的长期稳定性，数周内保持恒定的催化速率。除了显著的催化活性外，CoHCF 还具有分子基材料的典型特性：可见光透明性、多孔性、柔韧性、可加工性和低密度。这些特性使 CoHCF 成为推进太阳能燃料生产的有前途的 WOC 候选材料。
