In:
Nature Communications, Springer Science and Business Media LLC, Vol. 13, No. 1 ( 2022-10-14)
Abstract:
Hydrogen peroxide (H 2 O 2 ) has the wide range of applications in industry and living life. However, the development of the efficient heterogeneous catalyst in the direct H 2 O 2 synthesis (DHS) from H 2 and O 2 remains a formidable challenge because of the low H 2 O 2 producibility. Herein, we develop a two-step approach to prepare PdSn nanowire catalysts, which comprises Pd oxide layered on PdSn nanowires (Pd L /PdSn-NW). The Pd L /PdSn-NW displays superior reactivity in the DHS at zero Celcius, presenting the H 2 O 2 producibility of 528 mol kg cat −1 ·h −1 and H 2 O 2 selectivity of 〉 95%. A layer of Pd oxide on the PdSn nanowire generates bi-coordinated Pd, leading to the different adsorption behaviors of O 2 , H 2 and H 2 O 2 on the Pd L /PdSn-NW. Furthermore, the weak adsorption of H 2 O 2 on the Pd L /PdSn-NW contributes to the low activation energy and high H 2 O 2 producibility. This surface engineering approach, depositing metal layer on metal nanowires, provides a new insight in the rational designing of efficient catalyst for DHS.
Type of Medium:
Online Resource
ISSN:
2041-1723
DOI:
10.1038/s41467-022-33757-0
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
2553671-0
