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2024年5月嘲风作品集（二）

已有 199 次阅读 2024-7-30 16:46 |个人分类:作品发表|系统分类:论文交流

▲ Vol 20 Issue 19 | 09 May, 2024

Fabrication of Self-Wrinkling Polymer Films with Tunable Patterns through an Interfacial-Fuming-Induced Surface Instability Process

Yi-Chen Chen, Ying-Wei Luo, Ching-Yu Huang, Yan-Lin Li, Ting-Lun Chen, Ting-Yu Xu, Han-Yu Hsueh

Self-Wrinkling Polymer Films

In article number 2311679, Han-Yu Hsueh and co-workers were inspired by the superglue fuming method for fingerprint collection and developed a novel interfacial-fuming-induced surface instability process to generate wrinkled patterns on polymeric substrates. The technique can be easily applied to architectures with complex outer morphologies and inner surfaces and has considerable potential for use in various practical applications, including microfluidics, optical components, bioinspired adhesive devices, and interfacial engineering.

https://onlinelibrary.wiley.com/doi/10.1002/smll.202470150

▲ Vol 09 Issue 05 | 10 May, 2024

In Situ Synthesis and Measurement of Ammonia from Nitrogen by Nanoelectrospray-Based Corona Discharge Coupled with Mass Spectrometry

Xiaoyun Gong, Lulu Feng, Siyuan Tan, Simin Cheng, Rui Zhai, Tao Peng, You Jiang, Xinhua Dai, Yuanjiang Pan, and Xiang Fang

Ammonia (NH3) is one of the most widely used materials in the chemical industry. Here, we report a proof-of-concept study on in situ synthesis and measurement of NH3 from nitrogen by nanoelectrospray-based corona discharge coupled with mass spectrometry. The reactions and analytical confirmations were achieved via polarity-reversing nanoelectrospray ionization (PR-nESI). Plasma was generated by corona discharge at the capillary tip during the negative-polarity half cycle. N2 was fixed through interfacial reactions and transformed to NH3 in liquid water. NH3 was accumulated within the aqueous solution in the capillary tip. The solution was sprayed out for analytical confirmation during the positive-polarity half cycle. Isotopic labeling confirmed direct conversion of 15N2 to 15NH3. The formation of the plasma–water interface was critical to the synthesis of NH3. The addition of a surfactant to the solution could impede the reactions by forming a film at the surface and preventing direct contact between plasma and water.

https://pubs.acs.org/doi/10.1021/acsenergylett.4c00427

▲ Vol 17 Issue 10 | 21 May, 2024

The acupuncture effect of carbon nanotubes induced by the volume expansion of silicon-based anodes

Ziying He, Chenxi Zhang, Yukang Zhua and Fei Wei

The cyclic instability of Si-based anodes can be effectively alleviated by adding carbon nanotube (CNT) networks. However, the ion diffusion and electrochemical performance vary significantly depending on the type of CNTs added, particularly single-walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs), and the intrinsic mechanism remains unknown. Herein, we revealed that the large volume expansion of Si-based anodes leads to the acupuncture effect of short CNTs, with the compressive stress on the CNTs and the Li-ion (Li+) diffusion energy barriers in the solid electrolyte interphase (SEI) exhibiting a linear correlation. Both the SEI and carbon-coating are penetrated by short, thick CNTs with gigapascal (GPa)-scale compressive stress, thereby accelerating electrolyte decomposition and leading to a LiF-rich SEI and an increased Li+ diffusion barrier. In contrast, long, slender CNTs exhibit limited compressive stress, thus minimizing the acupuncture effect, and the formed SEI possesses a low energy barrier for smooth Li+ diffusion. Thus, long, slender CNTs are ideal for Si-based anodes. This work reveals the structure–property relationships among compressive stress, SEI components and Li+ diffusion energy barriers, providing a novel perspective on the development of high-performance electrodes.

https://pubs.rsc.org/en/content/articlelanding/2024/ee/d4ee00710g

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