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Overcoming Stability Hurdles of Transition Metal Phosphides for H2 Evolution: A Review
Anelisse Brunca da Silva1,2, Eduardo Arizono Dos Reis1,3, Caue Ribeiro2
1Departament of Chemistry, Universidade Federal de São Carlos, Rod. Washington Luiz, Km 235, São Carlos, 13565-905, SP, Brazil.
Transition metal phosphides (TMPs) show promise as electrocatalysts for hydrogen production. This review correlates TMPs properties with hydrogen evolution reaction performance across various pH and salinity conditions.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Efficient hydrogen (H2) production relies on advanced electrolyzers and electrocatalysts.
- Transition metal phosphides (TMPs) are emerging as highly active and stable electrocatalysts for H2 evolution.
- Existing research often highlights TMPs performance across a broad pH range, but lacks consolidated data on durability in harsh conditions.
Purpose of the Study:
- To review and correlate the electronic and physical-chemical properties of TMPs with their hydrogen evolution reaction (HER) performance.
- To consolidate information on TMP durability across a wide spectrum of pH and salinity levels, including challenging environments.
- To provide future perspectives for developing robust TMPs for HER.
Main Methods:
- Literature review and analysis of existing studies on TMPs for HER.
- Correlation of TMPs material properties (electronic, physical-chemical) with catalytic activity and stability.
- Assessment of performance data across diverse pH and salinity conditions.
Main Results:
- TMPs exhibit significant potential for efficient H2 electrochemical production.
- Durability of TMPs varies considerably with pH and salinity, with harsh environments posing significant challenges.
- Understanding the structure-property-performance relationship is key to optimizing TMPs.
Conclusions:
- Further research is needed to fully understand and enhance TMP stability in diverse and harsh electrochemical environments.
- Targeted material design based on electronic and physical-chemical properties can lead to improved HER catalysts.
- This review provides a foundation for future development of durable and efficient TMPs for large-scale H2 production.
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