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Ahmed S, Ghani A, Muhammad I, Muhammad I, Mehmood A, Ullah N, Hassan A, Wang Y, Tian X, Yakobson B. Enhanced As-COF nanochannels as a high-capacity anode for K and Ca-ion batteries. Phys Chem Chem Phys 2024; 26:6977-6983. [PMID: 38344751 DOI: 10.1039/d3cp05171d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Covalent organic frameworks can be used for next-generation rechargeable metal-ion batteries due to their controllable spatial and chemical architectures and plentiful elemental reserves. In this study, the arsenic-based covalent organic framework (As-COF) is designed by employing the geometrical symmetry of a semiconducting phosphazene-based covalent organic framework that uses p-phenylenediamine as a linker and hexachorocyclotriphosphazene as an As-containing monomer in a C3-like spatial configuration. The As-COF with engineered nanochannels demonstrates exceptional anodic behavior for potassium (K) and calcium (Ca) ion batteries. It exhibits a high storage capacity of about 914(2039) mA h g-1, low diffusion barriers of 0.12(0.26) eV, low open circuit voltage of 0.23(0.18) V, and a minimal volume expansion of 2.41(2.32)% for K (Ca) ions. These attributes collectively suggest that As-COF could significantly advance high-capacity rechargeable batteries.
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Affiliation(s)
- Shehzad Ahmed
- College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China.
| | - Awais Ghani
- Smart Materials for Architecture Research Lab, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314100, P. R. China
| | - Imran Muhammad
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Iltaf Muhammad
- College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China.
| | - Andleeb Mehmood
- College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China.
| | - Naeem Ullah
- College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China.
| | - Arzoo Hassan
- College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China.
| | - Yong Wang
- School of Physics, Nankai University, Tianjin 300071, P. R. China
| | - Xiaoqing Tian
- College of Physics and Optoelectronic Engineering, Shenzhen University, Guangdong 518060, P. R. China.
| | - Boris Yakobson
- Department of Materials Science and Nano Engineering, Department of Chemistry and the Smelly Institute for Nano Scale Science and Technology, Rice University, Houston, TX 77005, USA
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