Layered Pd oxide on PdSn nanowires for boosting direct H2O2 synthesis

被引：53

作者：

Li, Hong-chao ^{[1
,2
]}

Wan, Qiang ^{[3
]}

Du, Congcong ^{[1
,2
]}

Zhao, Jiafei ^{[1
,2
]}

Li, Fumin ^{[1
,2
]}

Zhang, Ying ^{[1
,2
]}

Zheng, Yanping ^{[1
]}

Chen, Mingshu ^{[1
]}

Zhang, Kelvin H. L. ^{[1
,2
]}

Huang, Jianyu ^{[4
]}

Fu, Gang ^{[1
,2
]}

Lin, Sen ^{[3
]}

Huang, Xiaoqing ^{[1
,2
]}

Xiong, Haifeng ^{[1
,2
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, iChEM Collaborat Innovat Ctr Chem Energy Mat, Dept Chem,State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Innovat Lab Sci & Technol Energy Mat Fujian Prov, 4221 Xiangan South Rd, Xiamen 361102, Peoples R China

[3] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China

[4] Yanshan Univ, Clean Nano Energy Ctr, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China

来源：

NATURE COMMUNICATIONS | 2022年 / 13卷 / 01期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN-PEROXIDE; PALLADIUM; CATALYSTS; O-2; H-2; MECHANISM; POINTS;

D O I：

10.1038/s41467-022-33757-0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Hydrogen peroxide (H2O2) has the wide range of applications in industry and living life. However, the development of the efficient heterogeneous catalyst in the direct H2O2 synthesis (DHS) from H-2 and O-2 remains a formidable challenge because of the low H2O2 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 H2O2 producibility of 528 mol kg(cat)(-1)center dot h(-1) and H2O2 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 H2O2 on the Pd-L/PdSn-NW. Furthermore, the weak adsorption of H2O2 on the Pd-L/PdSn-NW contributes to the low activation energy and high H2O2 producibility. This surface engineering approach, depositing metal layer on metal nanowires, provides a new insight in the rational designing of efficient catalyst for DHS. The development of the efficient catalyst in the direct H2O2 synthesis (DHS) from H2 and O2 remains a formidable challenge. Here, the authors develop a two-step approach to prepare a layer of Pd oxide on PdSn nanowires which displays superior reactivity in the DHS at zero Celcius.

引用

页数：10

共 48 条

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