Dirac Nodal Arc Semimetal PtSn4: An Ideal Platform for Understanding Surface 
Properties and Catalysis for Hydrogen Evolution

Li, Guowei; Fu, Chenguang; Shi, Wujun; Jiao, Lin; Wu, Jiquan; Yang, Qun; Saha, Rana; Kamminga, Machteld E.; Srivastava, Abhay K.; Liu, Enke; Yazdani , Aliza N.; Kumar, Nitesh; Zhang, Jian; Blake, Graeme R.; Liu, Xianjie; Fahlman, Mats; Wirth, Steffen; Auffermann, Gudrun; Gooth, Johannes; Parkin, Stuart; Madhavan, Vidya; Feng, Xinliang; Sun, Yan; Felser, Claudia

doi:10.1002/anie.201906109

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Dirac Nodal Arc Semimetal PtSn₄: An Ideal Platform for Understanding Surface Properties and Catalysis for Hydrogen Evolution

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Li, Guowei
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons209329

Fu, Chenguang
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons182590

Jiao, Lin
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons230811

Yang, Qun
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons222409

Liu, Enke
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons195511

Kumar, Nitesh
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126910

Wirth, Steffen
Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126525

Auffermann, Gudrun
Gudrun Auffermann, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons220347

Gooth, Johannes
Nanostructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons179670

Sun, Yan
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126601

Felser, Claudia
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Li, G., Fu, C., Shi, W., Jiao, L., Wu, J., Yang, Q., et al. (2019). Dirac Nodal Arc Semimetal PtSn₄: An Ideal Platform for Understanding Surface Properties and Catalysis for Hydrogen Evolution. Angewandte Chemie International Edition in English, 58, 13107-13112. doi:10.1002/anie.201906109.

Cite as: https://hdl.handle.net/21.11116/0000-0004-8CA1-8

Abstract

Abstract Conductivity, carrier mobility, and a suitable Gibbs free energy are important criteria that determine the performance of catalysts for a hydrogen evolution reaction (HER). However, it is a challenge to combine these factors into a single compound. Herein, we discover a superior electrocatalyst for a HER in the recently identified Dirac nodal arc semimetal PtSn4. The determined turnover frequency (TOF) for each active site of PtSn4 is 1.54 H2 s−1 at 100 mV. This sets a benchmark for HER catalysis on Pt-based noble metals and earth-abundant metal catalysts. We make use of the robust surface states of PtSn4 as their electrons can be transferred to the adsorbed hydrogen atoms in the catalytic process more efficiently. In addition, PtSn4 displays excellent chemical and electrochemical stabilities after long-term exposure in air and long-time HER stability tests.