Rational Design and Controlled Synthesis of MOF-Derived Single-Atom Catalysts

IF 14 Q1 CHEMISTRY, MULTIDISCIPLINARY
Weibin Chen, Bingbing Ma, Ruqiang Zou
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Abstract

Single-atom catalysts (SACs) represent a transformative advancement in heterogeneous catalysis, offering unparalleled opportunities for maximizing atomic efficiency and enhancing performance. SACs are characterized by isolated metal atoms uniformly dispersed on suitable supports, ensuring each metal atom serves as an independent catalytic site. This dispersion mitigates metal atom aggregation, a common issue in conventional nanocatalysts, thus enabling superior activity, selectivity, and stability. Metal–organic frameworks (MOFs) have emerged as an ideal platform for SAC synthesis due to their structural diversity, tunable coordination environments, and high surface areas. MOFs provide well-defined coordination sites that facilitate the precise stabilization of single metal atoms, presenting significant advantages over traditional supports like metal oxides and metal materials. Carbonization of MOFs yields MOF-derived carbon materials that retain key structural characteristics while offering enhanced electrical conductivity and stability, making them suitable for various catalytic applications.

Abstract Image

mof衍生单原子催化剂的合理设计与可控合成
单原子催化剂(SACs)代表了多相催化的革命性进步,为最大化原子效率和提高性能提供了无与伦比的机会。SACs的特点是孤立的金属原子均匀地分散在合适的载体上,确保每个金属原子作为独立的催化位点。这种分散减轻了金属原子聚集,这是传统纳米催化剂的一个常见问题,因此具有优越的活性,选择性和稳定性。金属有机框架(mof)由于其结构多样性、可调配环境和高表面积而成为合成SAC的理想平台。mof提供了定义明确的配位位点,促进了单个金属原子的精确稳定,与金属氧化物和金属材料等传统支撑物相比,具有显著的优势。mof的碳化产生mof衍生的碳材料,保留了关键的结构特征,同时提供增强的导电性和稳定性,使其适用于各种催化应用。
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CiteScore
17.70
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0.00%
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