A Low‐Temperature Solid Chemistry to Ru Clusterrene for Scalable Hydrogen Production
Abstract
ABSTRACT Platinum‐group‐metal (PGM) nanomaterials are prominent in chemical and energy conversions. To date, their scalable manufacturing is confined by complex post‐processing or high‐temperature calcination (≥ 800°C), which are often required for conventional small‐sized nanoparticles. Herein, we have successfully developed a thermal buffer‐assisted low‐temperature (250°C) calcination strategy to create a sub‐nano Ru metallene called “Ru clusterrene” for anion exchange membrane water electrolysis (AEMWE). The rational use of NaCl is pivotal for successful synthesis, serving as a “buffer” to prevent thermal runaway. Consequently, the Ru clusterrene exhibits an ultra‐thin, fluid‐like structure that enables strong interaction with the substrate and ensures maximized active site exposure. Importantly, this strategy costs only US$39.42/g Ru , which is substantially lower than that of commercial Ru/C (Premetek, US$1407.50/g Ru ). The Ru clusterrene delivers an outstanding activity of 1.73 V@2 A cm ‒2 and 2.0 V@5.4 A cm ‒2 , as well as an unprecedented stability for 1000 h at 2 A cm ‒2 (80°C) and 3500 h at 1 A cm ‒2 (50°C). More significantly, it exhibits a high stack performance in AEMWE (3.6 V@1 A cm ‒2 and 2000 h@25 A), representing the most advanced level for AEMWE cathode catalyst.
Article Details
Authors (14)
Rui Qin
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University
Tongshuai Wang
Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai China
Zhiyong Yu
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering
Zhongliang Huang
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering
Qunyang He
Department of Chemical and Biochemical Engineering College of Chemistry and Chemical Engineering Xiamen University Xiamen China
Huiping Peng
Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, China
Qingyu Kong
Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Cedex Gif-sur-yvette, France
Jihao Zhang
State Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science
Shu‐Chih Haw
National Synchrotron Radiation Research Center Hsinchu Taiwan
Zhiwei Hu
Max Planck Institute for Chemical Physics of Solids, Nothnitzer Strasse 40, Dresden 01187, Germany
Linjuan Zhang
Key Laboratory of Interfacial Physics and Technology
Nanjun Chen
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering
Qing Yao
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering
Xiaoqing Huang
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering