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  1. Polyaniline Derived N-Doped Carbon-Coated Cobalt Phosphide Nanoparticles Deposited on N-Doped Graphene as an Efficient Electrocatalyst for Hydrogen Evolution Reaction

    Jingwen Ma, Min Wang, Guangyu Lei, Guoliang Zhang, Fengbao Zhang, Wenchao Peng, Xiaobin Fan and Yang Li

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/smll.201702895

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    An N-doped graphene supported N-doped carbon coated cobalt phosphide nanoparticles (CoP@NC) core–shell structure is fabricated by using polyaniline, which is used both as N source for N doping and carbon cover. Due to the synergistic effect of the NC shell, CoP, and N-doped graphene, the composite shows high hydrogen evolution reaction activity and good stability in acidic, neutral, and basic electrolyte.

  2. Scalable Fabrication of Highly Active and Durable Membrane Electrodes toward Water Oxidation

    Yu Li, Shuangming Chen, Dawei Xi, Yanan Bo, Ran Long, Chengming Wang, Li Song and Yujie Xiong

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/smll.201702109

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    Freestanding graphitized carbon nanofiber membranes have been developed as supports for integration with abundant Fe/Ni active sites for the electrocatalytic oxygen evolution reaction (OER). The 3D hybrid structures achieve excellent OER performance when working as freestanding electrodes in alkaline medium, with an overpotential down to 215 mV at a geometrical current density of 10 mA cm−2.

  3. Controllable Synthesis of Organic Microcrystals with Tunable Emission Color and Morphology Based on Molecular Packing Mode

    Zhi-Zhou Li, Liang-Sheng Liao and Xue-Dong Wang

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/smll.201702952

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    Perylene organic microcrystals with tunable emission color and morphology are achieved by simply controlling the concentration of the perylene solution and the evaporation rate. Specifically, the α phase, the β phase, the α-doped β phase, and the β-doped α phase organic microcrystals are obtained, whose different optical properties are attributed to significantly different molecular packing modes.

  4. Dual Roles of Protein as a Template and a Sulfur Provider: A General Approach to Metal Sulfides for Efficient Photothermal Therapy of Cancer

    Jianping Sheng, Liqiang Wang, Yajing Han, Wansong Chen, Hong Liu, Min Zhang, Liu Deng and You-Nian Liu

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/smll.201702529

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    Metal sulfide nanoparticles (NPs) with ultrasmall size, and good biocompatibility can be facilely obtained via alkali-driven transformation of S-rich protein–metal complexes. Proteins work as both a sulfur resource and a template, where disulfide bonds can be activated to react with metal ions and form metal sulfide NPs in situ, which are proved to be an excellent theranostic platform for cancer therapy.

  5. Molten Salt Assisted Self-Assembly: Synthesis of Mesoporous LiCoO2 and LiMn2O4 Thin Films and Investigation of Electrocatalytic Water Oxidation Performance of Lithium Cobaltate

    Gülbahar Saat, Fadime Mert Balci, Elif Pınar Alsaç, Ferdi Karadas and Ömer Dag

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/smll.201701913

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    Mesoporous thin films of metal lithiates (LiCoO2 and LiMn2O4) can be prepared in one pot using a molten salt-assisted self-assembly approach. The salt species acts as a solvent in the assembly process and the metal ion precursors. Mesoporous LiCoO2 thin films display promising performance as a water oxidation electrocatalyst with a low overpotential.