Utilizing ion leaching effects for achieving high oxygen-evolving performance on hybrid nanocomposite with self-optimized behaviors
文献类型：期刊论文
| 作者 | Guan, DQ; Ryu, H; Hu, ZW; Zhou, J; Dong, CL; Huang, YC; Zhang, KF; Zhong, YJ; Komarek, AC; Zhu, M |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2020 |
| 卷号 | 11期号:1页码:- |
| ISSN号 | 2041-1723 |
| 关键词 | EVOLUTION REACTION METAL-OXIDES SPIN-STATE ELECTROCATALYSTS RECONSTRUCTION PEROVSKITES CATALYSIS |
| DOI | 10.1038/s41467-020-17108-5 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Ion leaching from pure-phase oxygen-evolving electrocatalysts generally exists, leading to the collapse and loss of catalyst crystalline matrix. Here, different from previous design methodologies of pure-phase perovskites, we introduce soluble BaCl2 and SrCl2 into perovskites through a self-assembly process aimed at simultaneously tuning dual cation/anion leaching effects and optimizing ion match in perovskites to protect the crystalline matrix. As a proofof-concept, self-assembled hybrid Ba0.35Sr0.65Co0.8Fe0.2O3-delta (BSCF) nanocomposite (with BaCl2 and SrCl2) exhibits the low overpotential of 260 mV at 10 mA cm(-2) in 0.1M KOH. Multiple operando spectroscopic techniques reveal that the pre-leaching of soluble compounds lowers the difference of interfacial ion concentrations and thus endows the host phase in hybrid BSCF with abundant time and space to form stable edge/face-sharing surface structures. These self-optimized crystalline structures show stable lattice oxygen active sites and short reaction pathways between Co-Co/Fe metal active sites to trigger favorable adsorption of OH- species. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33262]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 3.Tamkang Univ, Dept Phys, 151 Yingzhuan Rd, Taipei 25137, Taiwan 4.Natl Synchrotron Radiat Res Ctr, 101 Hsin Ann Rd, Hsinchu 30076, Taiwan 5.Curtin Univ, WA Sch Mines Minerals Energy & Chem Engn WASM MEC, Perth, WA 6845, Australia 6.Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 211800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, DQ,Ryu, H,Hu, ZW,et al. Utilizing ion leaching effects for achieving high oxygen-evolving performance on hybrid nanocomposite with self-optimized behaviors[J]. NATURE COMMUNICATIONS,2020,11(1):-. |
| APA | Guan, DQ.,Ryu, H.,Hu, ZW.,Zhou, J.,Dong, CL.,...&Shao, ZP.(2020).Utilizing ion leaching effects for achieving high oxygen-evolving performance on hybrid nanocomposite with self-optimized behaviors.NATURE COMMUNICATIONS,11(1),-. |
| MLA | Guan, DQ,et al."Utilizing ion leaching effects for achieving high oxygen-evolving performance on hybrid nanocomposite with self-optimized behaviors".NATURE COMMUNICATIONS 11.1(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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