Synergistically enhanced single-atomic site catalysts for clean energy conversion

Materials for Clean Energy Conversion

Single-site heterogeneous catalysts.

Intellectually, the advantages that flow from the availability of single-site heterogeneous catalysts (SSHC) are many. They facilitate the determination of the kinetics and mechanism of catalytic turnover-both experimentally and computationally-and make accessible the energetics of various intermediates (including short-lived transition states). These facts in turn offer a rational strategic pr...

Nanoalloy catalysts for electrochemical energy conversion and storage reactions

A key challenge to the exploration of electrochemical energy conversion and storage is the ability to engineer the catalyst with low cost, high activity and high stability. Existing catalysts often contain a high percentage of noble metals such as Pt and Pd. One important approach to this challenge involves alloying noble metals with other transition metals in the form of a nanoalloy, which pro...

Synthesis of single-site copper catalysts for methane partial oxidation.

Cu-Exchanged zeolites are known as active materials for methane oxidation to methanol. However, understanding of the formation of Cu active species during synthesis, dehydration and activation is fragmented and rudimentary. We show here how a synthesis protocol guided by insight in the ion exchange elementary steps leads to highly uniform Cu species in mordenite (MOR).

Tunable single-site ruthenium catalysts for efficient water oxidation.

The catalytic water oxidation activity of mononuclear ruthenium complexes comprising a pyridine-functionalized abnormal triazolylidene ligand can be adjusted by modification of the triazolylidene substituents, which is readily achieved through click-type cycloaddition chemistry, affording some of the most active ruthenium catalysts known thus far for water oxidation (TONs > 400, TOFs close to 7...