Influence of nitrogen functional groups in carbon-based supports anchoring Pt nanoclusters and single atoms for efficient ammonia borane hydrolysis
Ilaria Barlocco, Silvio Bellomi, Bianca M. C. Anghinelli, Xiaowei Chen, Juan J. Delgado, Marta Stucchi, Laura Prati, Karin Föttinger, Alberto Villa
TL;DR
Adding nitrogen to carbon supports improves platinum catalysts for efficient hydrogen release from ammonia borane.
Contribution
Nitrogen in carbon nitride enhances platinum's electronic structure and catalytic performance for ammonia borane hydrolysis.
Findings
Pt nanoclusters and single atoms were formed on carbon nitride supports.
Nitrogen species improved Pt's electronic and topological structure.
Pt/CNx catalysts showed enhanced hydrogen evolution from ammonia borane.
Abstract
A Pt(ii) precursor was impregnated onto graphite (C) and carbon nitride (CNx), successfully forming subnanometric Pt clusters and single atoms. The N species on CNx modified the electronic and topological structure of the metal, improving the catalytic properties of the Pt/CNx catalyst in evolving hydrogen from NH3BH3. This was rationalised by combining HR-TEM and XPS characterisation with DFT computational analysis. The N species on CNx modified the electronic and topological structure of Pt, improving the catalytic properties of the Pt/CNx catalyst in evolving hydrogen from NH3BH3.
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Taxonomy
TopicsHydrogen Storage and Materials · Ammonia Synthesis and Nitrogen Reduction · Boron Compounds in Chemistry