Selective synthesis of hierarchical nanoporous Mo–Ni intermetallic compounds as hydrogen evolution reaction catalysts via partial liquid metal dealloying
Abstract
The present work demonstrates the selective synthesis of bicontinuous nanoporous Mo–Ni intermetallic compounds via partial liquid metal dealloying (PLMD). This innovative technique exploits a phase equilibrium between a liquid bath and solid ligaments to realize a self-limiting leaching process such that Ni dissolution is spontaneously terminated at a desired composition. Using this approach, bicontinuous porous architectures were produced for all binary intermetallic compounds in the Mo–Ni phase diagram. Electrochemical evaluations revealed that porous Mo 7 Ni 7 exhibited the highest activity when employed as a catalyst for the hydrogen evolution reaction. A novel two-step PLMD process was used to construct a hierarchically porous Mo 7 Ni 7 structure showing significantly enhanced catalytic performance as a result of ligament refinement.
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BibTeX
@article{wada2026selective,
title = {{Selective synthesis of hierarchical nanoporous Mo–Ni intermetallic compounds as hydrogen evolution reaction catalysts via partial liquid metal dealloying}},
author = {Takeshi Wada and Yuki Minabe and Kiichi Kaji and Ruirui Song and Pierre-Antoine Geslin and Hidemi Kato},
journal = {Scripta Materialia},
year = {2026},
month = sep,
doi = {10.1016/j.scriptamat.2026.117537},
url = {https://hal.science/hal-05761913v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Selective synthesis of hierarchical nanoporous Mo–Ni intermetallic compounds as hydrogen evolution reaction catalysts via partial liquid metal dealloying
AU - Takeshi Wada
AU - Yuki Minabe
AU - Kiichi Kaji
AU - Ruirui Song
AU - Pierre-Antoine Geslin
AU - Hidemi Kato
PY - 2026
DA - 2026/09/24
JO - Scripta Materialia
DO - 10.1016/j.scriptamat.2026.117537
UR - https://hal.science/hal-05761913v1
AB - The present work demonstrates the selective synthesis of bicontinuous nanoporous Mo–Ni intermetallic compounds via partial liquid metal dealloying (PLMD). This innovative technique exploits a phase equilibrium between a liquid bath and solid ligaments to realize a self-limiting leaching process such that Ni dissolution is spontaneously terminated at a desired composition. Using this approach, bicontinuous porous architectures were produced for all binary intermetallic compounds in the Mo–Ni phase diagram. Electrochemical evaluations revealed that porous Mo 7 Ni 7 exhibited the highest activity when employed as a catalyst for the hydrogen evolution reaction. A novel two-step PLMD process was used to construct a hierarchically porous Mo 7 Ni 7 structure showing significantly enhanced catalytic performance as a result of ligament refinement.
SN - 1359-6462
SN - 1872-8456
ER -