文献类型：期刊文献

英文题名：Tailorable loading of Pt onto photo-responsive ultrafine peptoid nanowires for high-efficient hydrogen evolution

作者：Wu, Pengchao[1];Xu, Zejiang[1];Ding, Mingyu[1];Sui, Pengliang[1];Zhang, Yu[2];Zhou, Yongfeng[3];Jin, Haibao[1];Lin, Shaoliang[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Frontiers Sci Ctr Materiobiol & Dynam Chem, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[3]Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Frontiers Sci Ctr Transformat Mol, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

年份：2025

卷号：68

期号：11

起止页码：5978

外文期刊名：SCIENCE CHINA-CHEMISTRY

收录：;EI(收录号：20253719136940);WOS:【SCI-EXPANDED(收录号:WOS:001567154200001)】；

基金：This work was supported by the National Natural Science Foundation of China (52373114, 52073092, 22231007, 22001071). The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for the help with the UPLC-MS characterization. The authors also thank Shanghai Synchrotron Radiation Facility (Beamline BL16B1) for assistance with WAXS data collection.

语种：英文

外文关键词：amphiphilic alternating azopeptoids; ultrafine peptoid nanowires; photo-triggered structural transformation; single-atom catalysts; photo-controllable electrocatalytic performance

摘要：Imparting one-dimensional (1D) ultrafine organic nanowires with tailored ligands and atomically-dispersed central noble metal to craft high-performance hybrid single atom electrocatalysts offers a prospective yet challenging approach for the advancement in hydrogen evolution reactions (HER). Herein, we report the evaporation-induced self-assembly of sequence-defined amphiphilic alternating azopeptoids (AAAPs) to generate photo-responsive and micron-scale ultrafine peptoid nanowires (UFPNWs) with a diameter of similar to 1.8 nm via pendants' hydrophobic conjugate stacking mechanism, exemplifying the finest biomimetic polymers-based nanowires to date. A series of 1D UFPNWs-based single-atom catalysts (SACs) were meticulously fabricated using the chelation interaction between Pt ions and nitrogenous ligands. The photo-controllable electrocatalytic performance was evaluated toward acidic HER, which was highly dependent on the presence of Pt elements, the structural characteristic of supports, and the peripheral coordination microenvironment of the center Pt atoms. Notably, the Pt-based hybrid SACs using terpyridine-modified UFPNWs as support presented favorable electrocatalytic capacity with an overpotential of similar to 20 mV at a current density of 10 mA cm(-2), and a mass activity of 89.6 times greater than commercial Pt/C catalyst. Our work paves an appealing avenue for the construction of stimuli-responsive 1D organic nanowire-based hybrid catalysts with controllable electrocatalytic HER performance.