A metal–organic framework/polymer derived catalyst containing single-atom nickel species for electrocatalysis,Chemical Science

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A metal–organic framework/polymer derived catalyst containing single-atom nickel species for electrocatalysis
Chemical Science ( IF 7.6 ) Pub Date : 2020-09-25 , DOI: 10.1039/d0sc04512h
Shuliang Yang _{1,

2,

3,

4,

5} , Jie Zhang _{1,

2,

3,

4,

5} , Li Peng _{6,

7,

8,

9} , Mehrdad Asgari _{1,

2,

3,

4,

5} , Dragos Stoian _{1,

2,

3,

4,

5} , Ilia Kochetygov _{1,

2,

3,

4,

5} , Wen Luo _{1,

2,

3,

4,

5} , Emad Oveisi _{2,

5,

10,

11} , Olga Trukhina _{1,

2,

3,

4,

5} , Adam H. Clark _{5,

12,

13} , Daniel T. Sun _{1,

2,

3,

4,

5} , Wendy L. Queen _{1,

2,

3,

4,

5}

Affiliation

While metal–organic frameworks (MOF) alone offer a wide range of structural tunability, the formation of composites, through the introduction of other non-native species, like polymers, can further broaden their structure/property spectrum. Here we demonstrate that a polymer, placed inside the MOF pores, can support the collapsible MOF and help inhibit the aggregation of nickel during pyrolysis; this leads to the formation of single atom nickel species in the resulting nitrogen doped carbons, and dramatically improves the activity, CO selectivity and stability in electrochemical CO₂ reduction reaction. Considering the vast number of multifarious MOFs and polymers to choose from, we believe this strategy can open up more possibilities in the field of catalyst design, and further contribute to the already expansive set of MOF applications.

中文翻译：

金属-有机骨架/聚合物衍生的包含单原子镍物种的催化剂，用于电催化

虽然金属有机骨架（MOF）本身提供了广泛的结构可调性，但通过引入其他非天然物种（如聚合物）来形成复合材料，则可以进一步拓宽其结构/性能范围。在这里，我们证明了放置在MOF孔内的聚合物可以支撑可折叠的MOF，并有助于抑制热解过程中镍的聚集。这导致在所得的氮掺杂碳中形成单原子镍物种，并显着提高了电化学CO ₂的活性，CO选择性和稳定性还原反应。考虑到各种各样的MOF和聚合物可供选择，我们认为这种策略可以在催化剂设计领域开辟更多的可能性，并进一步为已经广泛的MOF应用做出贡献。

更新日期：2020-10-08

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