Atomic Pillar Effect in PdxNbS2 To Boost Basal Plane Activity for Stable Hydrogen Evolution
- Chong HuangChong HuangState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, P.R. ChinaMore by Chong Huang,
- Xin WangXin WangCollege of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P.R. ChinaMore by Xin Wang,
- Dong WangDong WangState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaMore by Dong Wang,
- Wei Zhao*Wei Zhao*E-mail: [email protected] (W.Z.).State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaMore by Wei Zhao,
- Kejun BuKejun BuState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, P.R. ChinaMore by Kejun Bu,
- Jijian XuJijian XuState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaMore by Jijian Xu,
- Xieyi HuangXieyi HuangState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, P.R. ChinaMore by Xieyi Huang,
- Qingyuan BiQingyuan BiState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaMore by Qingyuan Bi,
- Jian Huang*Jian Huang*E-mail: [email protected] (J.H.).State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, P.R. ChinaMore by Jian Huang, and
- Fuqiang Huang*Fuqiang Huang*E-mail: [email protected] (F.H.).State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, P.R. ChinaState Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. ChinaMore by Fuqiang Huang
Abstract
Exploring novel electrocatalysts with prominent performance is highly demanded for electrochemical hydrogen evolution. As one family member of layered transition-metal dichalcogenides (TMDs), metallic niobium disulfide (NbS2) with intrinsic basal plane activity might be a promising candidate once its electrical and structural characteristics are optimized. Here, we develop novel electrocatalysts by incorporating palladium (Pd) atoms into the van der Waals gaps of NbS2 to form new compounds PdxNbS2 (x = 0–0.23). On the basis of single crystal structure refinement and theoretical calculations, the Pd atoms act as atomic pillars to expand the interlayer spacing of NbS2 and boost the basal plane activity with a drop of Gibbs free energy for hydrogen adsorption to 0.06 eV on neighboring S atoms, resulting in more protons to adsorb and react. In addition, pillared Pd stabilizes the crystal structure by connecting the NbS2 interlayers with [PdS6] octahedra. All these merits endow Pd0.23NbS2 with superior electrochemical activity and durability, achieving 10 mA cm–2 at a low overpotential of 157 mV with a negligible change in 12 h. This unique atomic pillar effect for optimizing the electrocatalytic performance of PdxNbS2 demonstrates a functional and powerful strategy to develop efficient TMD-based electrocatalysts.
Cited By
This article is cited by 3 publications.
- Fuhua Li, Qing Tang. Modulating the Electronic Structure and In-Plane Activity of Two-Dimensional Transition Metal Dichalcogenide (MoS2, TaS2, NbS2) Monolayers by Interfacial Engineering. The Journal of Physical Chemistry C 2020, 124 (16) , 8822-8833. https://doi.org/10.1021/acs.jpcc.0c01094
- Leyla Najafi, Sebastiano Bellani, Reinier Oropesa-Nuñez, Beatriz Martín-García, Mirko Prato, Lea Pasquale, Jaya-Kumar Panda, Petr Marvan, Zdeněk Sofer, Francesco Bonaccorso. TaS2, TaSe2, and Their Heterogeneous Films as Catalysts for the Hydrogen Evolution Reaction. ACS Catalysis 2020, 10 (5) , 3313-3325. https://doi.org/10.1021/acscatal.9b03184
- Leyla Najafi, Sebastiano Bellani, Reinier Oropesa-Nuñez, Beatriz Martín-García, Mirko Prato, Vlastimil Mazánek, Doriana Debellis, Simone Lauciello, Rosaria Brescia, Zdeněk Sofer, Francesco Bonaccorso. Niobium disulphide (NbS 2 )-based (heterogeneous) electrocatalysts for an efficient hydrogen evolution reaction. Journal of Materials Chemistry A 2019, 7 (44) , 25593-25608. https://doi.org/10.1039/C9TA07210A