|
|||||
|
|
Electrochemical Exfoliation of Pillared‐Layer Metal–Organic Framework to Boost the Oxygen Evolution Reaction |
|
| Authors: | Jin Huang Yun Li Rui‐Kang Huang Dr Chun‐Ting He Dr Li Gong Qiong Hu Prof Lishi Wang Yan‐Tong Xu Xiao‐Yun Tian Dr Si‐Yang Liu Zi‐Ming Ye Fuxin Wang Dr Dong‐Dong Zhou Dr Wei‐Xiong Zhang Prof Jie‐Peng Zhang |
| Institution: | 1. MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, China;2. Instrumental Analysis and Research Center, Sun Yat-Sen University, Guangzhou, China;3. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China |
| Abstract: | Two‐dimensional (2D) materials and ultrathin nanosheets are advantageous for elevating the catalysis performance and elucidating the catalysis mechanism of heterogeneous catalysts, but they are mostly restricted to inorganic or organic materials based on covalent bonds. We report an electrochemical/chemical exfoliation strategy for synthesizing metal–organic 2D materials based on coordination bonds. A catechol functionalized ligand is used as the redox active pillar to construct a pillared‐layer framework. When the 3D pillared‐layer MOF serves as an electrocatalyst for water oxidation (pH 13), the pillar ligands can be oxidized in situ and removed. The remaining ultrathin (2 nm) nanosheets of the metal–organic layers are an efficient catalyst with overpotentials as low as 211 mV at 10 mA cm?2 and a turnover frequency as high as 30 s?1 at an overpotential of 300 mV. |
| Keywords: | 2D materials exfoliation metal– organic frameworks (MOFs) nanosheets water oxidation |