|
1
|
Li X, Li N, Yang L, Chen HS, Song WL. Single-Particle Measurements: A Powerful Method for Investigating Electrochemical Reactions. Chemistry 2023; 29:e202203124. [PMID: 36401589 DOI: 10.1002/chem.202203124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/17/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
The relationship between interface structure (e. g., the facet of the solid phase and the configuration of solvation) and the reactivity of the corresponding electrode is a critical issue in electrochemistry. Compared to macroscopic electrode measurements, electrochemical methods established on the single-particle scale have advantages in establishing the structure-property relationship. In recent years, great achievements have been made in electrochemical energy storage and electrocatalysis that allow the evolution and kinetics of electrodes to be understood by employing single-particle measurements. This concept aims to provide an overview of the update of single-particle measurements in related electrochemical processes. Furthermore, the challenges and prospects for the development and application of single-particle measurements are also discussed.
Collapse
Affiliation(s)
- Xu Li
- Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China.,Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Na Li
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100081, P. R. China
| | - Le Yang
- Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China.,Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Hao-Sen Chen
- Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China.,Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, 100081, P. R. China.,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Wei-Li Song
- Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China.,Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, 100081, P. R. China
| |
Collapse
|
|
2
|
Ma J, Shen G, Zhang R, Niu J, Zhang J, Wang X, Liu J, Li X, Liu C. Small Particle Size Activated Carbon Enhanced Flow Electrode Capacitive Deionization Desalination Performances by Reducing the Interfacial Concentration Difference. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
|
3
|
Hu X, Min X, Li X, Si M, Liu L, Zheng J, Yang W, Zhao F. Co-Co 3O 4 encapsulated in nitrogen-doped carbon nanotubes for capacitive desalination: Effects of nano-confinement and cobalt speciation. J Colloid Interface Sci 2022; 616:389-400. [PMID: 35228044 DOI: 10.1016/j.jcis.2022.02.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 01/22/2023]
Abstract
Capacitive deionization (CDI) has gained increasing attention as an environmentally friendly and energy-efficient technology for brackish water desalination. However, traditional CDI electrodes still suffer from low salt adsorption capacity and unsatisfactory reusability, which inhibit its application for long-term operations. Herein, we present a facile and effective approach to prepare Co and Co3O4 nanoparticles co-incorporating nitrogen-doped (N-doped) carbon nanotubes (Co-Co3O4/N-CNTs) via a pyrolysis route. The Co-Co3O4 nanoparticles were homogeneously in-situ encapsulated in the inner channels of the conductive CNTs to form a novel and efficient CDI electrode for the first time. The encapsulation of Co-Co3O4 nanoparticles in CNTs not only inhibits the Co leaching but also significantly enhances the desalination capacity. The morphology, structure, and capacitive desalination properties of the Co-Co3O4/N-CNTs were thoroughly characterized to illuminate the nano-confinement effects and the key roles of the interaction between cobalt species in the CDI performance. The co-existing metallic cobalt and cobalt oxides act as the roles of effective active sites in the CDI performance. As a consequence, the optimum Co-Co3O4/N-CNTs electrode displays an outstanding desalination capacity of 66.91 mg NaCl g-1 at 1.4 V. This work provides insights for understanding the nano-confinement effects and the key roles of the interaction between cobalt species on the CDI performance.
Collapse
Affiliation(s)
- Xiaoxian Hu
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Xiaobo Min
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Xinyu Li
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Mengying Si
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Lu Liu
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Junhao Zheng
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Weichun Yang
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China.
| | - Feiping Zhao
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China.
| |
Collapse
|
|
4
|
Pan Z, An J, Wang P, Fan X, Shen T, Xu R, Song Y, Song C. Novel strategy to enhance the desalination performance of flow-electrode capacitive deionization process via the assistance of electro-catalytic water splitting. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|