One-dimensional MoO2–Co2Mo3O8@C nanorods: a novel and highly efficient oxygen evolution reaction catalyst derived from metal–organic framework composites,Chemical Communications

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One-dimensional MoO2–Co2Mo3O8@C nanorods: a novel and highly efficient oxygen evolution reaction catalyst derived from metal–organic framework composites
Chemical Communications ( IF 4.3 ) Pub Date : 2018-02-19 00:00:00 , DOI: 10.1039/c8cc00025e
Yanqiang Li _{1,

2,

3,

4,

5} , Haibin Xu _{1,

2,

3,

4,

5} , Huiyong Huang _{1,

2,

3,

4,

5} , Chao Wang _{1,

2,

3,

4,

5} , Liguo Gao _{1,

2,

3,

4,

5} , Tingli Ma _{1,

2,

3,

4,

5}

Affiliation

One-dimensional MoO₂–Co₂Mo₃O₈@C nanorods were synthesized by using MoO₃@ZIF-67 composites as a precursor for the first time, and it is found that the Co₂Mo₃O₈ species and its composite have excellent OER activities. The MoO₂–Co₂Mo₃O₈@C nanorods present favorable electrocatalytic advantages toward OER in alkaline solution, requiring an overpotential of only 320 mV to deliver a current density of 10 mA cm⁻². In addition, the catalyst also shows a small Tafel slope of 88 mV dec⁻¹ and relatively good durability. The attractive OER performance can be attributed to the highly active Co₂Mo₃O₈ and MoO₂ species and the unique structure of the catalyst. This strategy can be extended to design and synthesize other novel and highly efficient molybdenum based ternary metal oxides as OER catalysts.

中文翻译：

一维MoO ₂ -Co ₂ Mo ₃ O ₈ @C纳米棒：一种新型的高效氧分解反应催化剂，其衍生自金属-有机骨架复合材料

以MoO ₃ @ ZIF-67复合材料为前驱体，首次合成了一维MoO ₂ -Co ₂ Mo ₃ O ₈ @C纳米棒，发现Co ₂ Mo ₃ O ₈物种及其复合材料具有出色的OER活动。MoO ₂ -Co ₂ Mo ₃ O ₈ @C纳米棒在碱性溶液中对OER具有良好的电催化优势，仅需320 mV的超电势即可提供10 mA cm ^-2的电流密度。此外，该催化剂还显示出88 mV dec ^-1的小Tafel斜率以及相对较好的耐用性引人注目的OER性能可以归因于高活性的Co ₂ Mo ₃ O ₈和MoO ₂物种以及催化剂的独特结构。该策略可以扩展为设计和合成其他新型且高效的钼基三元金属氧化物作为OER催化剂。

更新日期：2018-03-13

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