1
|
Sakthivel M, Ho KC. X-CoOTe ( X = S, Se, and P) with Oxygen/Tellurium Dual Vacancies and Banana Stem Fiber-Derived Carbon Fiber as Battery-Type Cathode and Anode Materials for Asymmetric Supercapacitor. ACS APPLIED MATERIALS & INTERFACES 2024; 16:18754-18767. [PMID: 38563749 DOI: 10.1021/acsami.3c18205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
In this work, we demonstrated the synthesis of anions (X = selenium (Se), sulfur (S), and phosphorus (P)) doped cobalt oxytelluride (X-CoOTe) with oxygen and tellurium dual vacancies using hydrothermal methods, followed by selenization, sulfurization, and phosphorization reactions. Especially, the Se-CoOTe-modified nickel foam (Se-CoOTe/NF) electrode delivered a higher specific capacity (752.95 C/g) and an extremely lower charge transfer resistance (0.87 Ω) than S-CoOTe/NF and P-CoOTe/NF due to the higher metallic conductivity of Se. Both oxygen and tellurium vacancies facilitate higher charge transfer conductivity, specific capacity, and stability. On the other hand, banana stem core fiber-derived activated carbon fiber (AC) with exfoliated carbon sheet, cracked surface, and corresponding high surface area boosts the excellent cycle stability up to 4000 cycles with capacitance retention of 100.29%. Thus, the asymmetric device (Se-CoOTe/NF//AC/NF) exhibited an extendable cell voltage (1.55 V), higher energy density (155.6 W h kg-1) at a power density (1356.2 W kg-1), and generous long-term stability (100% retention up to 10 000 cycles) in a liquid alkaline electrolyte. In the practicability test, the proposed asymmetric device mutually showed an increased operating voltage from 1.55 to 4.65 V for a three-series connection. In a three-series connection, a single white LED and an LED string glowed efficiently. This new finding will be very useful to develop tellurium-based chalcogenides and biowaste-derived carbon for energy storage applications.
Collapse
Affiliation(s)
- Mani Sakthivel
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Kuo-Chuan Ho
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
2
|
Zhao X, Liu K, Guo F, He Z, Zhang L, Lei S, Li H, Cheng Y, Yang L. meta-Position synergistic effect induced by Ni-Mo co-doped WSe 2 to enhance the hydrogen evolution reaction. Dalton Trans 2022; 51:11758-11767. [PMID: 35857033 DOI: 10.1039/d2dt01350a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal dichalcogenides have been the most attractive two-dimensional layered materials for electrocatalytic hydrogen evolution due to their unique structure and multi-phase electronic states. However, the enhancement of the WSe2 electrocatalytic hydrogen evolution reaction (HER) performance by bimetal co-doping has been rarely reported. Herein, the NiMo-WSe2 catalyst has been synthesized by a one-step hydrothermal reaction, with lower overpotentials of 177 and 188 mV at a current density of 10 mA cm-2 in 0.5 M H2SO4 and 1 M KOH, respectively. The large specific surface area and thinner edge morphology provide more active sites for hydrogen production, thereby significantly improving the charge transfer kinetics. Density functional theory calculation results show that under acidic conditions the ΔGH* values of NiMo-WSe2 with different structures and hydrogen adsorption sites are also different, when the hydrogen adsorption site was located at the top of the Se-Ni bond, the meta NiMo-WSe2 has a ΔGH* value (-0.04 eV) that is closest to 0. Meanwhile, NiMo-WSe2 (meta) also has a minimum of ΔGH* under alkaline conditions. DOS confirmed that Ni doping has a large impact on the electronic states at the WSe2 Fermi level, while NiMo co-doping greatly reduces the potential energy barrier of the HER reaction, jointly increasing the current density, and thus improving the HER performance.
Collapse
Affiliation(s)
- Xinya Zhao
- School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China. .,Shanxi Key Laboratory of High Performance Battery Materials and Devices, North University of China, Taiyuan, 030051, China
| | - Kankan Liu
- School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China. .,Shanxi Key Laboratory of High Performance Battery Materials and Devices, North University of China, Taiyuan, 030051, China
| | - Fengbo Guo
- School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China. .,Shanxi Key Laboratory of High Performance Battery Materials and Devices, North University of China, Taiyuan, 030051, China
| | - Zeyang He
- Department of Environment and Geography, University of York, Heslington, York, YO10 5DD, UK
| | - Lixin Zhang
- Shanxi Key Laboratory of High Performance Battery Materials and Devices, North University of China, Taiyuan, 030051, China.,School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, China.
| | - Shiwen Lei
- Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030000, China
| | - Huadong Li
- School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China.
| | - Yongkang Cheng
- School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China.
| | - Lei Yang
- Shenzhen HUASUAN Technology Co., Ltd, 4168 Liuxian Ave., Nanshan District, Shenzhen, 518055, China
| |
Collapse
|
3
|
Andikaey Z, Ensafi AA, Rezaei B, Hu JS. Nickel/cobalt/copper sulfide dodecahedral hollow multi-shelled structures, characterization, and application as a suitable nanomaterial for high-performance supercapacitors. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|