Hollow Multishelled Structures for Promising Applications: Understanding the Structure-Performance Correlation.

Abstract:
The unique structural features of hollow multishelled structures (HoMSs) endow them with abundant beneficial physicochemical properties including high surface-to-volume ratio, low density, short mass transport length, and high loading capacity. As a result, HoMSs have been considered as promising candidates for various application areas including energy storage, electromagnetic wave (EW) absorption, catalysis, sensors, drug delivery, etc. However, for a long time, the general and controllable synthesis of HoMSs has remained a great challenge using conventional soft-templating or hierarchical self-assembly methods, which severely limits the development of HoMSs. Fortunately, the sequential templating approach (STA), which was first reported by our group and further developed by others, has been proven to be a versatile method for HoMS fabrication. By using the STA and through accurate physical and chemical manipulation of the synthesis conditions, the diversity of the HoMS family has been enriched in both compositional and geometrical aspects. Benefiting from the flourishing of synthetic methodology, various HoMSs have been fabricated and showed application prospect in diverse areas. However, the structure-performance correlation remained obscure, which hinders the design of optimal HoMSs to achieve the best application performance. This Account aims to explore the correlation between HoMS structural characteristics and their application performance. We first briefly summarize the achievements in the compositional and geometrical manipulation of HoMSs by physically and chemically tuning the synthesis process. Then, we systematically discuss the effect of structural engineering on optimizing performance in various application areas, especially for energy storage, EW absorption, catalysis, sensors, and drug delivery. Specifically, HoMSs with multiple thin shells can provide numerous active sites for energy storage, leading to a higher volumetric energy density than their single-shelled counterparts. The high shell porosity permits electrolyte access to the interior of HoMSs, along with shortened mass transport path through the thin shells, resulting in a high power density. The adequate inner cavity effectively buffers the ion-insertion strain, leading to prolonged cycling stability. For EW absorption, HoMSs with high surface-to-volume ratio can provide many sites for EW-sensitive material loading. The multiple separated shells with small intershell space enable multiple EW reflection and scattering, thus improving EW absorption efficiency. For catalysis and sensors, the increased reaction sites along with the facilitated transport of reactants and products can enhance the activity and sensitivity. The selectivity can be improved by optimizing the pore structure and hydrophobic or hydrophilic properties of the shells. Also the stability is improved with inner shells being protected by exterior ones. For drug delivery, the increased exposed sites and the inner cavity improve the drug loading capacity. The adjustable pore structure along with accurately designed shell composition leads to well-targeted drug release responding to different stimuli at different targeting sites. The multiple separated shells endow HoMSs with sustained drug release step-by-step from inside to outside. These in-depth understandings on the structure-performance correlation can guide the design of ideal HoMSs to satisfy the specific requirements for different application areas, thus further improving the application performance and expanding the HoMSs family.
Author Listing： Jiangyan Wang;Jiawei Wan;Dan Wang
Volume： None
Pages： None
DOI： 10.1021/acs.accounts.9b00112
Language： English
Journal： Accounts of chemical research

ACCOUNTS OF CHEMICAL RESEARCH

Acc. Chem. Res.

影响因子：16.4 是否综述期刊：是 是否OA：否 是否预警：不在预警名单内 发行时间：1968 ISSN：0001-4842 发刊频率：Monthly 收录数据库：SCIE/Scopus收录 出版国家/地区：UNITED STATES 出版社：American Chemical Society

期刊介绍

Accounts of Chemical Research 主要发表化学和生物化学领域内关于基础研究和应用的短小精悍、具有作者团队自己研究特色的述评文章，或者前瞻性观点。这些短综述都是基于作者自己实验室的过往研究，以便向读者完整介绍研究项目。期刊收录研究方向：化学，化学综合Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Visit the Accounts Special Issues page for listings, descriptions, and TOC's of all special issues.Beginning in 2008, Accounts of Chemical Research replaced their traditional article abstract with an article "Conspectus." These new entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article’s discoverability by search engines and the exposure for the research.

化学研究报告提供了简短，简洁和关键的文章，提供了化学和生物化学所有领域的基础研究和应用的易于阅读的概述。此外，《化学研究报告》还出版了专门针对异常活动和意义的单一问题的特刊。访问帐户特殊问题页面以获取所有特殊问题的列表，描述和目录。从2008年开始，化学研究帐户用文章 “Conspectus” 代替了传统的文章摘要。这些新条目概述了这项研究，使读者可以更仔细地了解文章的内容和意义。通过提供对文章内容的更详细描述，Conspectus增强了搜索引擎对文章的可发现性和对研究的了解。

年发文量 311
国人发稿量 102
国人发文占比 32.8%
自引率 0.6%
平均录取率 极难
平均审稿周期 一般,3-6周
版面费 -
偏重研究方向 化学-化学综合
期刊官网 https://pubs.acs.org/journal/achre4
投稿链接 https://acs.manuscriptcentral.com/acs

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
0.00% 12.32% 0.00% 0.90%

相关指数

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