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Solubility‐Parameter‐Guided Solvent Selection to Initiate Ostwald Ripening for Interior Space‐Tunable Structures with Architecture‐Dependent Electrochemical Performance
Author(s) -
Mao Baoguang,
Guo Donglei,
Qin Jinwen,
Meng Tao,
Wang Xin,
Cao Minhua
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201710378
Subject(s) - ostwald ripening , solvent , materials science , solubility , chemical engineering , electrochemistry , nanotechnology , chemistry , electrode , organic chemistry , engineering
Despite significant advancement in preparing various hollow structures by Ostwald ripening, one common problem is the intractable uncontrollability of initiating Ostwald ripening due to the complexity of the reaction processes. Here, a new strategy on Hansen solubility parameter (HSP)‐guided solvent selection to initiate Ostwald ripening is proposed. Based on this comprehensive principle for solvent optimization, N , N ‐dimethylformamide (DMF) was screened out, achieving accurate synthesis of interior space‐tunable MoSe 2 spherical structures (solid, core–shell, yolk‐shell and hollow spheres). The resultant MoSe 2 structures exhibit architecture‐dependent electrochemical performances towards hydrogen evolution reaction and sodium‐ion batteries. This pre‐solvent selection strategy can effectively provide researchers great possibility in efficiently synthesizing various hollow structures. This work paves a new pathway for deeply understanding Ostwald ripening.