DataVXACS Applied Materials & InterfacesPaper
journal article·2018-10-10

Mesoporous Pd@Ru Core–Shell Nanorods for Hydrogen Evolution Reaction in Alkaline Solution

Yiqi Luo, Xuan Luo, Geng Wu, Zhijun Li, Guanzhong Wang, Bin Jiang, Yanmin Hu, Tingting Chao, Huanxin Ju, Junfa Zhu, Zhongbin Zhuang, Yuen Wu, Xun Hong, Yadong Li

ACS Applied Materials & Interfaces· Volume 10· Issue 40
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Source abstract

Abstract

The activity and stability of bimetallic nanocatalysts strongly depend on their structures, compositions, and interfaces. Here, we report the synthesis of mesoporous Pd@Ru core–shell bimetallic nanorods composed of face-centered cubic Pd and hexagonal close-packed Ru. The nanorods have two types of cavities with diameters of 3.0 ± 0.9 and 20.3 ± 8.1 nm. The mutual diffusion process between Ru and Pd is characterized by the high-angle annular dark-field scanning transmission electron microscopy, energy-dispersive X-ray spectroscopy mapping, and the synchrotron radiation photoemission spectroscopy measurements. The mesoporous Pd@Ru nanorods exhibit superior catalytic performance and stability for hydrogen evolution reactions (overpotentials of 30 mV at 10 mA·cm–2 in 1.0 M KOH solution and 37 mV at 10 mA·cm–2 in 0.5 M H2SO4 solution).
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Catalytic Processes in Materials Science · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei, Anhui 230029, China

State Key Lab of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China

Department of Chemistry, Tsinghua University, Beijing 100084, China

Funding

Ministry of Science and Technology of the People's Republic of China · China Association for Science and Technology · Ministry of Education of the People's Republic of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China

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