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18 Feb 08:13

[ASAP] A Replacement Reaction Enabled Interdigitated Metal/Solid Electrolyte Architecture for Battery Cycling at 20 mA cm–2 and 20 mAh cm–2

by Zhao Cai, Yangtao Ou, Bao Zhang, Jindi Wang, Lin Fu, Mintao Wan, Guocheng Li, Wenyu Wang, Li Wang, Jianjun Jiang, Zhi Wei Seh, Enyuan Hu, Xiao-Qing Yang, Yi Cui, and Yongming Sun

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/jacs.0c11753
12 Oct 07:30

[ASAP] General Synthesis of α-Alkyl Ynones from Morpholine Amides and 1-Copper(I) Alkynes Promoted by Triflic Anhydride

by Yunxiang Weng, Lin Min, Xiaobao Zeng, Lidong Shan, Xinyan Wang, and Yuefei Hu

TOC Graphic

Organic Letters
DOI: 10.1021/acs.orglett.0c02944
06 Jul 10:58

Exerting Spatial Control During Nanoparticle Occlusion within Calcite Crystals

by Yin Ning, Yide Han, Lijuan Han, Matthew J. Derry, Steven P. Armes
Exerting Spatial Control During Nanoparticle Occlusion within Calcite Crystals

Both surface chemistry and [Ca2+] concentration are shown to play critical roles in dictating the precise spatial occlusion of the guest nanoparticles within calcite crystals. This new insight enables the rational design of patterned nanocomposite crystals via a multi‐step occlusion strategy.


In principle, nanoparticle occlusion within crystals provides a straightforward and efficient route to make new nanocomposite materials. However, developing a deeper understanding of the design rules underpinning this strategy is highly desirable. In particular, controlling the spatial distribution of the guest nanoparticles within the host crystalline matrix remains a formidable challenge. Herein, we show that the surface chemistry of the guest nanoparticles and the [Ca2+] concentration play critical roles in determining the precise spatial location of the nanoparticles within calcite crystals. Moreover, in situ studies provide important mechanistic insights regarding surface‐confined nanoparticle occlusion. Overall, this study not only provides useful guidelines for efficient nanoparticle occlusion, but also enables the rational design of patterned calcite crystals using model anionic block copolymer vesicles.