Rao Gyandshwar Kumar, Pell Wendy, Gabidullin Bulat, Korobkov Ilia, Richeson Darrin
Department of Chemistry and Biomolecular Science, Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON, K1N 6N5, USA.
Chemistry. 2017 Nov 27;23(66):16763-16767. doi: 10.1002/chem.201704882. Epub 2017 Nov 7.
Efficient electrocatalytic production of H from mixed water/acetonitrile solutions was achieved using three new Co complexes supported by the neutral pincer ligand bis(diphenylphosphino)-2,6-di(methylamino)pyridine ("PN P"). At -1.9 V vs. Fc/Fc , these catalysts showed 96 % Faradaic efficiency with added water or saturated aqueous saline at rates of up to 316 L(mol cat) (cm ) h using a glassy carbon working electrode. The complex [Co(κ -2,6-{Ph PNMe} (NC H )Br ] (1) was also able to photocatalytically reduce water to hydrogen in the presence of a Ru(bpy) photosensitizer and a reductant.
使用由中性钳形配体双（二苯基膦基）-2,6-二（甲氨基）吡啶（“PN P”）支撑的三种新型钴配合物，实现了从水/乙腈混合溶液中高效电催化制氢。相对于Fc/Fc，在-1.9 V时，使用玻碳工作电极，这些催化剂在添加水或饱和盐水的情况下，以高达316 L（mol cat）⁻¹（cm⁻²）⁻¹ h⁻¹的速率显示出96%的法拉第效率。配合物[Co(κ³-2,6-{Ph₂PNMe₂}₂(C₅H₄N)Br]（1）在Ru(bpy)₃²⁺光敏剂和还原剂存在的情况下，也能够光催化将水还原为氢气。
