From Metal-Organic Frameworks to Single-Atom Fe Implanted N-doped Porous Carbons: Efficient Oxygen Reduction in Both Alkaline and Acidic Media.

By L. Jiao, Gang Wan, Rui Zhang, Hua Zhou, Shuhong Yu, Hai‐Long Jiang. Angewandte Chemie, 2018

736 citations recorded by the source corpus.

It remains highly desired but a great challenge to achieve atomically dispersed metals in high loadings for efficient catalysis. Now porphyrinic metal-organic frameworks (MOFs) have been synthesized based on a novel mixed-ligand strategy to afford high-content (1.76 wt %) single-atom (SA) iron-implanted N-doped porous carbon (FeSA -N-C) via pyrolysis. Thanks to the single-atom Fe sites, hierarchical pores, oriented mesochannels and high conductivity, the optimized FeSA -N-C exhibits excellent oxygen reduction activity and stability, surpassing almost all non-noble-metal catalysts and state-of-the-art Pt/C, in both alkaline and more challenging acidic media. More far-reaching, this MOF-based mixed-ligand strategy opens a novel avenue to the precise fabrication of efficient single-atom catalysts.

Subfields: Electrical and Electronic Engineering, Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/7385d092c8bc9a239842d3d1fcf73603a50a39b6

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In Electrical and Electronic Engineering

1. L. Jiao
2. Hai‐Long Jiang
3. C. Dinh
4. Jiacheng Wang
5. Minghui Yang

In Materials Chemistry

1. L. Jiao
2. Hai‐Long Jiang
3. Tu N. Nguyen
4. Qiang Xu

In Renewable Energy, Sustainability and the Environment

1. L. Jiao
2. Hai‐Long Jiang
3. C. Dinh
4. Jiacheng Wang
5. Minghui Yang
6. Qiang Xu

Citations in the corpus

• Oxygen Reduction Reactions of Fe-N-C Catalysts: Current Status and the Way Forward (2019, background): “Appealingly, metal–organic frameworks (MOFs), as a novel porous material, have received wide attention in recent years and have been brought in Fe-N-C materials fabrication [53].”
• Fundamentals of Electrochemical CO2 Reduction on Single-Metal-Atom Catalysts (2020, methodology): “utilized mixed ligands comprised of Fe-tetrakis (4‐carboxyphenyl)porphyrin (Fe-TCPP) and H2-TCPP to render the Fe atom into the PCN-222 MOF (PCN stands for porous coordination network ) (Figure 3a).(74) The percentage of Fe in PCN-222 can be modulated by varying the Fe-TCPP and H2-TCPP ratio.”