Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction

Zhang，Lei1; Si，Rutong2,3; Liu，Hanshuo4; Chen，Ning5; Wang，Qi6; Adair，Keegan1; Wang，Zhiqiang7; Chen，Jiatang7; Song，Zhongxin1; Li，Junjie1; Banis，Mohammad Norouzi1; Li，Ruying1; Sham，Tsun Kong7; Gu，Meng6; Liu，Li Min2,3; Botton，Gianluigi A.4; Sun，Xueliang1

2019-12-01

10.1038/s41467-019-12887-y

Nature Communications   影响因子和分区

2041-1723

2041-1723

Single atom catalysts exhibit particularly high catalytic activities in contrast to regular nanomaterial-based catalysts. Until recently, research has been mostly focused on single atom catalysts, and it remains a great challenge to synthesize bimetallic dimer structures. Herein, we successfully prepare high-quality one-to-one A-B bimetallic dimer structures (Pt-Ru dimers) through an atomic layer deposition (ALD) process. The Pt-Ru dimers show much higher hydrogen evolution activity (more than 50 times) and excellent stability compared to commercial Pt/C catalysts. X-ray absorption spectroscopy indicates that the Pt-Ru dimers structure model contains one Pt-Ru bonding configuration. First principle calculations reveal that the Pt-Ru dimer generates a synergy effect by modulating the electronic structure, which results in the enhanced hydrogen evolution activity. This work paves the way for the rational design of bimetallic dimers with good activity and stability, which have a great potential to be applied in various catalytic reactions.

SCI

英语

NI论文 ; ESI高被引

其他

[TZ2018004]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000493275600010

NATURE PUBLISHING GROUP

2-s2.0-85074287421

Scopus

1.Department of Mechanical and Materials EngineeringThe University of Western Ontario,London,N6A 5B9,Canada
2.Beijing Computational Science Research Center,Beijing,100193,China
3.School of PhysicsBeihang University,Beijing,100083,China
4.Department of Materials Science and EngineeringMcMaster University,Hamilton,L8S 4L8,Canada
5.Canadian Light Source Inc,Saskatoon,S7N 2V3,Canada
6.Department of Materials Science and EngineeringSouthern University of Science and Technology,Shenzhen,518055,China
7.Department of ChemistryUniversity of Western Ontario,London,N6A 5B7,Canada

Zhang，Lei,Si，Rutong,Liu，Hanshuo,et al. Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction[J]. Nature Communications,2019,10(1).

Zhang，Lei.,Si，Rutong.,Liu，Hanshuo.,Chen，Ning.,Wang，Qi.,...&Sun，Xueliang.(2019).Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction.Nature Communications,10(1).

Zhang，Lei,et al."Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction".Nature Communications 10.1(2019).