Facile synthesis of Co-Ni layered double hydroxides nanosheets wrapped on a prism-like metal-organic framework for efficient oxygen evolution reaction

Birnessite-Type Manganese Dioxide Nanosheets on Metal–Organic Frameworks with High Catalytic Activity in Ozone Decomposition

“…The Mn 2p spectrum gave two main spin–orbit bands, which are 2p 3/2 at 642.7 eV and 2p 1/2 at 654.3 eV, with a binding energy difference (Δ E ) of 11.60 eV (Figure S19). The asymmetrical XPS peak of Mn 2p 3/2 could be decomposed into four components (Figure a), which are centered at 640.89, 642.40, 643.73, and 646.54 eV, corresponding to Mn 2+ , Mn 3+ , and Mn 4+ atoms and the satellite peak of Mn 2+ , , respectively. The molar ratio of Mn 2+ /Mn 3+ to Mn 4+ atoms on the sample surface was estimated to be 1.00 based on their peak areas.…”

“…It is highly desirable to make use of the numerous reported MOFs for O 3 elimination and even for the removal of other airborne gaseous pollutants simultaneously based on the intrinsic porosity of MOFs. The construction of composites from MOFs and conventional inorganic O 3 -decomposition catalysts may be a solution to this end, as many reported MOF–noble metal and MOF–metal oxide composites have shown enhanced properties over their individual components. − …”

Amorphous Fe/Co-based tannic acid salts as robust oxygen evolution pre-catalysts

“…Developing OER catalysts with high-performance based on earth-abundant and non-noble metals is thus urgently needed and important. 19 Researchers have paid much attention to transition-metal oxides/hydroxides such as Fe–Ni oxides, 20 Fe–Co oxides, nickel hydroxides, 21 and Fe–Ni/Fe–Co layered double metal hydroxides 22–24 for their promising catalytic activities in oxygen evolution. Besides them, transition-metal sulfides were also extensively investigated as OER catalysts.…”