Metal oxide-organic hybrid materials for heterogeneous catalysis and methods of making and using thereof

Patent · 14 July 2020

OSTI ID:1735020

Bloomfield, Aaron J.; Sheehan, Stafford W.; Collom, Samuel L.; Crabtree, Robert H.; Anastas, Paul T.

Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes.

• Research Organization: Yale Univ., New Haven, CT (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-84ER13297
• Assignee: Yale University (New Haven, CT)
• Patent Number(s): 10,711,021
• Application Number: 14/950,791
• OSTI ID: 1735020
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY