On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS2

doi:10.1039/d4nr00876f

	On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS2
	Orgiani, Pasquale 1; Braglia, Luca 1,2; Polewczyk, Vincent 1; Nie, Zhiwei3 ; Lavini, Francesco 4; Punathum Chalil, Shyni 1; Chaluvadi, Sandeep Kumar 1; Rajak, Piu 1; Morabito, Floriana 1,2; Dobovičnik, Edvard 5; Foglietti, Vittorio 6; Torelli, Piero 1; Riedo, Elisa 4; Ciancio, Regina 1,2; Yang, Nan3 ; Aruta, Carmela 6
	2024
发表期刊	NANOSCALE (IF:5.8[JCR-2023],6.1[5-Year])
ISSN	2040-3364
EISSN	2040-3372
卷号	16 期号:25 页码:12237-12247
发表状态	已发表
DOI	10.1039/d4nr00876f
摘要	In the field of hydrogen production, MoS2 demonstrates good catalytic properties for the hydrogen evolution reaction (HER) which improve when doped with metal cations. However, while the role of sulfur atoms as active sites in the HER is largely reported, the role of metal atoms (i.e. molybdenum or the dopant cations) has yet to be studied in depth. To understand the role of the metal dopant, we study MoS2 thin films doped with Co and Mn ions. We identify the contribution of the electronic bands of the Mn and Co dopants to the integral valence band of the material using in situ resonant photoemission measurements. We demonstrate that Mn and Co dopants act differently: Mn doping favors the shift of the S-Mo hybridized band towards the Fermi level, while in the case of Co doping it is the less hybridized Co band that shifts closer to the Fermi level. Doping with Mn increases the effectiveness of S as the active site, thus improving the HER, while doping with Co introduces the metallic site of Co as the active site, which is less effective in improving HER properties. We therefore clarify the role of the dopant cation in the electronic structure determining the active site for hydrogen adsorption/desorption. Our results pave the way for the design of efficient materials for hydrogen production via the doping route, which can be extended to different catalytic reactions in the field of energy applications. © 2024 The Royal Society of Chemistry.
关键词	Catalysis Cobalt Electronic structure Fermi level Gas adsorption Hydrogen production Layered semiconductors Manganese Positive ions Semiconductor doping Active site Catalytic properties Co-dopants Co-doped Dopant cation Hydrogen evolution reactions Metal atoms Metal cation Mn-doped Sulphur atoms
URL	查看原文
收录类别	EI ; SCI
语种	英语
资助项目	Ministero dell'Istruzione, dell'Universit e della Ricerca["2016-009","2020-001"] ; Italian Ministry of Research under the PRIN 2022[202228P42F] ; PNRR Mission 4 Istruzione e Ricerca - Componente["2022 - CUP B53D23003800006","ECS00000024"] ; Italian Ministry of University[3277]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001243055500001
出版者	Royal Society of Chemistry
EI入藏号	20242416258272
EI主题词	Molybdenum compounds
EI分类号	522 Gas Fuels ; 543.2 Manganese and Alloys ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 712.1 Semiconducting Materials ; 802.2 Chemical Reactions ; 802.3 Chemical Operations ; 931.3 Atomic and Molecular Physics
原始文献类型	Article in Press
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/387364
专题	物质科学与技术学院物质科学与技术学院_PI研究组_杨楠组物质科学与技术学院_博士生
通讯作者	Aruta, Carmela
作者单位	1.CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste; 34149, Italy 2.Area Science Park, Padriciano 99, Trieste; 34149, Italy 3.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China 4.Tandon School of Engineering, New York University, New York; NY; 11201, United States 5.Department of Engineering and Architecture, University of Trieste, Trieste; 34127, Italy 6.CNR-SPIN, via del Fosso del Cavaliere 100, Roma; 00133, Italy
推荐引用方式 GB/T 7714	Orgiani, Pasquale,Braglia, Luca,Polewczyk, Vincent,et al. On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS2[J]. NANOSCALE,2024,16(25):12237-12247.
APA	Orgiani, Pasquale.,Braglia, Luca.,Polewczyk, Vincent.,Nie, Zhiwei.,Lavini, Francesco.,...&Aruta, Carmela.(2024).On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS2.NANOSCALE,16(25),12237-12247.
MLA	Orgiani, Pasquale,et al."On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS2".NANOSCALE 16.25(2024):12237-12247.