▲ Vol 13 Issue 03 | 21 January, 2025
Synergistic strain and N-doping for creating physical orientation selectivity in chemical etching of graphene nanoribbons
Xiangyu Meng, Yuansen Zhu, Ying Li, Chengqian Huang, Shiming Zhou, Kuibo Yin, Liang Ma, Jinlan Wang, Yueming Suna and Yunqian Dai
The controlled synthesis of graphene nanoribbons (GNRs) necessitates precise selectivity in physical orientation during the etching process. However, traditional chemical selectivity methods struggle to etch graphene due to its symmetrical structure and uniform chemical bonds, which result in no differences in reaction pathways or products. We introduce an innovative method that overcomes these limitations by combining physical stress with nitrogen doping, thereby creating new chemical selectivity for oriented etching. This precise synthesis method produces GNRs with adjustable widths ranging from 103 to 16 nm and controlled zigzag edges precisely decorated with peripheral N-dopants. In a cylindrical container, spontaneous self-bending of graphene oxide sheets in ammonia medium can induce strain on the carbon matrix. This strain stretches the C–C bonds and rearranges epoxy-pair chains on the carbon skeleton, directing the graphene oxide etching perpendicular to the strain with the aid of N-aligning, resulting in the production of GNRs. By simply regulating bending strain, we obtained a series of zigzag GNRs with tailorable widths and peripheral N-dopant concentrations. This approach provides a powerful toolbox for fine-tuning the oriented etching geometric features and their electrical and chemical properties in two-dimensional materials (e.g., superior performance of GNRs in electrocatalytic oxygen reduction reactions demonstrated here).
https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta05960c
▲ Vol 64 Issue 04 | 21 January, 2025
Frontispiece: A Knowledge–Data Dual-Driven Framework for Predicting the Molecular Properties of Rechargeable Battery Electrolytes
Yu-Chen Gao, Yu-Hang Yuan, Suozhi Huang, Nan Yao, Legeng Yu, Yao-Peng Chen, Qiang Zhang, Xiang Chen
In their Research Article (e202416506), Xiang Chen and co-authors developed a knowledge–data dual-driven framework that incorporates domain expertise into artificial intelligence models, achieving notable accuracy in predicting properties such as melting, boiling, and flash points of battery electrolytes.
https://onlinelibrary.wiley.com/doi/10.1002/anie.202580461
▲ Vol 37 Issue 03 | 22 January, 2025
Bridging to Commercialization: Record-Breaking of Ultra-Large and Superior Cyclic Stability Tungsten Oxide Electrochromic Smart Window
Maofei Tian, Rongzong Zheng, Chunyang Jia
Electrochromic Smart Windows
Ultra-large-scale, high-performance electrochromic smart windows are prepared using TAIG method, which exploits the instability of black phosphorus to achieve the control of the structural water and oxygen vacancy content in WO3 films. The simplicity of TAIG makes the commercialization of smart windows to be highly accessible. More details can be found in article number 2409790 by Maofei Tian, Rongzong Zheng and Chunyang Jia.
https://onlinelibrary.wiley.com/doi/10.1002/adma.202570021
▲ Vol 21 Issue 03 | 22 January, 2025
Guided Heterostructure Growth of CoFe LDH on Ti3C2Tx MXene for Durably High Oxygen Evolution Activity
Jiali Sheng, Jiahui Kang, Pan Jiang, Kristoffer Meinander, Xiaodan Hong, Hua Jiang, Nonappa, Olli Ikkala, Hannu-Pekka Komsa, Bo Peng, Zhong-Peng Lv
Oxygen EvolutionIn article number 2404927, Hannu-Pekka Komsa, Bo Peng, Zhong-Peng Lv, and co-workers unveiled the guided growth of Co/Fe layered double hydroxide nanosheets (LDH) via the terminations on Ti3C2Tx MXene surface. The MXene surface chemistry regulates the structure and electronic properties in LDH-MXene heterostructures. A remarkably robust oxygen evolution reaction performance is demonstrated, where the overpotential only decays by 0.1% over 200 h operation.
https://onlinelibrary.wiley.com/doi/10.1002/smll.202570016
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静远嘲风（MY Scimage） 成立于2007年，嘲风取自中国传统文化中龙生九子，子子不同的传说，嘲风为守护屋脊之瑞兽，喜登高望远；静远取自成语“宁静致远”，登高莫忘初心，远观而不可务远。
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