Bimetal-organic framework-derived nanorod-like FexNi1−x@C, P composites for electrochemical hydrogen evolution
Source abstract
Abstract
Electrocatalytic decomposition of water using bifunctional catalysts is a potential method for clean hydrogen energy production. In order to solve the weakness of present catalysts, this study rationally designed a novel iron-nickel bifunctional electrocatalyst of Fe xNi 1−x @C, P composites prepared by pyrolysis and phosphorus doping of a FeNi-bimetal-organic framework (FeNi-MOF). The innovative combination of FeNi bimetallic co-doping, low-temperature curing and phosphating has bred an excellent electrocatalyst for the hydrogen evolution reaction (HER) in alkaline solution. When the mass ratio of phosphate to Fe xNi 1−x @C 250–800 was 10:1, Fe xNi 1−x @C 250–800, P (10:1) showed the highest hydrogen evolution activity, obtaining a low 189 mV hydrogen evolution overpotential with a Tafel slope of 91.9 mV·dec −1 at 10 mA·cm −2 current density. Meanwhile, Fe xNi 1−x @C 250–800, P exhibited good stability during HER process. This work would open up a novel pathway for designing efficient and stable bifunctional electrocatalysts for water electrolysis as well as sustainable chemistry applications.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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