文献类型：期刊文献

英文题名：Designable Photo-Responsive Micron-Scale Ultrathin Peptoid Nanobelts for Enhanced Performance on Hydrogen Evolution Reaction

作者：Wu, Pengchao[1];Sui, Pengliang[1];Peng, Guiping[1];Sun, Zichao[1];Liu, Fan[1];Yao, Wenqian[1];Jin, Haibao[1];Lin, Shaoliang[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Frontiers Sci Ctr Mat & Dynam Chem, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

年份：2024

卷号：36

期号：16

外文期刊名：ADVANCED MATERIALS

收录：;EI(收录号：20240315385823);WOS:【SCI-EXPANDED(收录号:WOS:001141975700001)】；

基金：Financial support was provided by the National Natural Science Foundation of China (22001071, 52373114, 52073092, and 52325308). Support by the Shanghai Scientific and Technological Innovation Project (19JC1411700) is also much appreciated. The authors also thank Dr. Xiaoling Yang at the National Demonstration Center for Experimental Material Education at the East China University of Science and Technology, for assistance with XRD data collection and analysis. Additional STEM characterization was aided by Dr. Yanyan Jia at the Feringa Nobel Prize Scientist Joint Research Center at the East China University of Science and Technology. The authors also thank the Shanghai Synchrotron Radiation Facility (14W1, SSRF) for the assistance with XANES and EXAFS data collection.

语种：英文

外文关键词：azobenzene-based peptoid; hydrogen evolution reaction; photo-responsive feature; self-assembly; ultrathin nanobelts

摘要：The development of high-reactive single-atom catalysts (SACs) based on long-range-ordered ultrathin organic nanomaterials (UTONMs) (i.e., below 3 nm) provides a significant tactic for the advancement in hydrogen evolution reactions (HER) but remains challenging. Herein, photo-responsive ultrathin peptoid nanobelts (UTPNBs) with a thickness of approximate to 2.2 nm and micron-scaled length are generated using the self-assembly of azobenzene-containing amphiphilic ternary alternating peptoids. The pendants hydrophobic conjugate stacking mechanism reveals the formation of 1D ultralong UTPNBs, whose thickness is dictated by the length of side groups that are linked to peptoid backbones. The photo-responsive feature is demonstrated by a reversible morphological transformation from UTPNBs to nanospheres (21.5 nm) upon alternative irradiation with UV and visible lights. Furthermore, the electrocatalyst performance of these aggregates co-decorated with nitrogen-rich ligand of terpyridine (TE) and uniformly-distributed atomic platinum (Pt) is evaluated toward HER, with a photo-controllable electrocatalyst activity that highly depended on both the presence of Pt element and structural characteristic of substrates. The Pt-based SACs using TE-modified UTPNBs as support exhibit a favorable electrocatalytic capacity with an overpotential of approximate to 28 mV at a current density of 10 mA cm(-2). This work presents a promising strategy to fabricate stimuli-responsive UTONMs-based catalysts with controllable HER catalytic performance.