Discovery of Self-Assembled 2D Ru/Si Superlattices Boosting Hydrogen Evolution

Cai, Weizheng1; He, Xinyi2; Ye, Tian-Nan3; Hu, Xinmeng1; Liu, Chuanlong1; Sasase, Masato2; Kitano, Masaaki2; Kamiya, Toshio2; Hosono, Hideo2; Wu, Jiazhen1,4,5

2024-06-01

10.1002/smll.202402357

SMALL   影响因子和分区

1613-6810

1613-6829

["2D heterostructuring is a versatile methodology for designing nanoarchitecture catalytic systems that allow for reconstruction and modulation of interfaces and electronic structures. However, catalysts with such structures are extremely scarce due to limited synthetic strategies. Here, a highly ordered 2D Ru/Si/Ru/Si & mldr; nano-heterostructures (RSHS) is reported by acid etching of the LaRuSi electride. RSHS shows a superior electrocatalytic activity for hydrogen evolution with an overpotential of 14 mV at 10 mA cm-2 in alkaline media. Both experimental analysis and first-principles calculations demonstrate that the electronic states of Ru can be tuned by strong interactions of the interfacial Ru-Si, leading to an optimized hydrogen adsorption energy. Moreover, due to the synergistic effect of Ru and Si, the energy barrier of water dissociation is significantly reduced. The well-organized superlattice structure will provide a paradigm for construction of efficient catalysts with tunable electronic states and dual active sites.","A highly ordered 2D Ru/Si/Ru/Si & mldr; superlattice, with abundant well-organized Ru-Si interfaces, is discovered through the acid etching of the LaRuSi electride. This unique superlattice structure facilitates effective adsorption of H and OH on Ru and its neighboring Si sites, respectively, thereby accelerating the kinetics of water dissociation. image"]

2D materials high-ordered superlattices hydrogen evolution self-assembly well-organized interfaces

SCI ; EI

英语

第一 ; 通讯

Guangdong Basic and Applied Basic Research Foundation["2022A1515011295","2024A1515011677"] ; Shenzhen fundamental research funding[JCYJ20210324115809026] ; Shenzhen Key Laboratory Program["ZDSYS20210709112802010","G03050K002"] ; Guangdong Provincial Department of Education Innovation Team Program[2021KCXTD012] ; JSPS Kakenhi["17H06153","JPMJMI21E9"] ; null[52173284]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001248763000001

WILEY-V C H VERLAG GMBH

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen Key Lab Micro Nanoporous Funct Mat, Shenzhen 518055, Peoples R China
2.Tokyo Inst Technol, MDX Res Ctr Element Strategy, Int Res Frontiers Initiat, Yokohama 2268503, Japan
3.Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol, Inst Innovat Mat, Shenzhen 518055, Peoples R China

Cai, Weizheng,He, Xinyi,Ye, Tian-Nan,et al. Discovery of Self-Assembled 2D Ru/Si Superlattices Boosting Hydrogen Evolution[J]. SMALL,2024.

Cai, Weizheng.,He, Xinyi.,Ye, Tian-Nan.,Hu, Xinmeng.,Liu, Chuanlong.,...&Wu, Jiazhen.(2024).Discovery of Self-Assembled 2D Ru/Si Superlattices Boosting Hydrogen Evolution.SMALL.

Cai, Weizheng,et al."Discovery of Self-Assembled 2D Ru/Si Superlattices Boosting Hydrogen Evolution".SMALL (2024).