| 1 | Partially hydroxylated ultrathin iridium nanosheets as efficient electrocatalysts for water splitting显示文摘Ultrathin two-dimensional(2D)materials have attracted considerable attention for their unique physicochemical properties and promising applications;however,preparation of freestanding ultrathin 2D noble metal remains a significant challenge.Here,for the first time,we report use of a wet-chemical method to synthesize partially hydroxylated ultrathin Ir nanosheets(ir-NSs)of only five to six atomic layers*thickness.Detailed analysis indicates that the growth confinement effect of carbon monoxide and the partially hydroxylated surface play a critical role in formation of the ultrathin structure.The ultrathin Ir-NSs exhib让excellent performance for both the hydrogen evolution reaction and oxygen evolution reaction in a wide pH range,outperforming the state-of the-art Pt/C and IrO2,respectively.Density-functional theory calculations reveal that the partial hydroxylation not only enhances the surface electron transfer between Ir-sites and intermediate O-species,but also guarantees efficient irdtial activation ofbond cleavage of H-O-H for first-step H2O splitting.This;ultimately,breaks through barriers to full water splitting,with efficient electron transfer essentially maintained. | Zifang Cheng Bolong Huang Yecan Pi Leigang Li Qi Shao Xiaoqing Huang | 2020 | National Science Review2020，7，8： | 4 |
| 2 | Micro/nano metal–organic frameworks meet energy chemistry: A review of materials synthesis and applications显示文摘Micro/nano metal–organic frameworks(MOFs)have attracted significant attention in recent years due to their numerous unique properties,with many synthetic methods and strategies being reported for constructing MOFs with specific micro/nano structures.In addition,the design of micro/nano MOFs for energy storage and conversion applications and the study of the structure–activity relationship have also become research hotspots.Herein,a comprehensive overview of the recent progress on micro/nano MOFs is presented.We begin with a brief introduction to the various synthesis methods for controlling the morphology of micro/nano MOFs.Subsequently,the structure-dependent properties of micro/nano MOFs as electrode materials or catalysts in terms of batteries,supercapacitors,and catalysis are discussed.Finally,the remaining challenges and future perspectives in this field are presented.Overall,this review is expected to inspire the design of advanced micro/nano MOFs for efficient energy storage and conversion technologies. | Zhenyang Meng Ziming Qiu Yuxin Shi Shixian Wang Guangxun Zhang Yecan Pi Huan Pang | 2023 | eScience2023，3，2： | 0 |
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