1
|
Wang Z, Dong Z, Wu B, Wang Z, Qiu Z, Wang D, Zeng Q, Liu X, Nam Hui K, Liu Z, Zhang Y. Unlocking the critical roles of N, P Co-Doping in MXene for Lithium-Oxygen Batteries: Elevated d-Band center and expanded interlayer spacing. J Colloid Interface Sci 2024; 676:368-377. [PMID: 39032419 DOI: 10.1016/j.jcis.2024.07.138] [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: 05/25/2024] [Revised: 07/06/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
The design and fabrication of bifunctional catalysts with high electrocatalytic activity and stability are critical for developing highly reversible Li-O2 batteries (LOBs). Herein, the N, P co-doped MXene (NP-MXene) is prepared by one-step annealing method and evaluated as bifunctional catalyst for LOBs. The results suggest that the P doping plays a crucial role in increasing interlayer distance of MXene, thereby effectively providing more active sites, fast mass transfer, and ample space for the deposition/decomposition of Li2O2. Moreover, the N doping can significantly elevate the d-band center of Ti, thereby remarkably improving the adsorption of reaction intermediates and accelerating the deposition/decomposition of Li2O2 films. Consequently, the MXene-based LOBs deliver an ultrahigh specific capacity of 13,995 mAh/g at 500 mA g-1, a discharge/charge voltage gap of 0.89 V, and a cycle life up to 523 cycles with a limited capacity of 1000 mAh/g at 500 mA g-1. Impressively, the as-fabricated flexible LOBs with NP-MXene cathode display excellent cycling stability and ability to continuously power LEDs even after bending. Our findings pave the road of heteroatom doped MXenes as next-generation electrodes for high-performance energy storage and conversion systems.
Collapse
Affiliation(s)
- Zhonghua Wang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Zhen Dong
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Bangjun Wu
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Zhongquan Wang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Zhenping Qiu
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Da Wang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Qingguang Zeng
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Xiaolu Liu
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China; Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, China
| | - Kwun Nam Hui
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, China
| | - Zheng Liu
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China.
| | - Yelong Zhang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China.
| |
Collapse
|
2
|
Du D, Liu P, Tian G, Xu H, Wang X, Liu S, Fan F, Wang S, Wang C, Zeng C, Shu C. Robust oxygen adsorbent mediated oxygen redox reactions for high performance lithium-oxygen battery. J Colloid Interface Sci 2024; 678:570-577. [PMID: 39265329 DOI: 10.1016/j.jcis.2024.09.042] [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: 07/25/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/14/2024]
Abstract
Lithium-oxygen batteries (LOBs) have been widely studied because of their ultra-high energy density (∼3500 Wh kg-1). However, the reversibility and stability of LOBs are greatly limited by the sluggish kinetics of oxygen reduction/evolution reactions (ORR/OER) and severely parasitic reactions on oxygen electrodes. Electrolyte in LOBs plays an important role in the transport of reactive oxygen species and Li+, which greatly affects the kinetics and reversibility of the charging and discharging processes of batteries. In this work, perfluorooctane (PFO) is used as the additive in 1.0 M LiTFSI/TEGDEM electrolyte for LOBs to regulate the kinetics of oxygen electrode reactions. Due to the strong adsorption ability of PE toward oxygen, the oxygen concentration inside the electrolyte is greatly increased after the addition of PE. In addition, the PE-added electrolyte also exhibits superior electrochemical stability and is capable of triggering solution-mediated Li2O2 growth pathway during the discharge process of the LOBs. Therefore, with the increased oxygen concentration and the optimized electrode/electrolyte interface, the ORR/OER kinetics on the oxygen electrode is significantly promoted, which enables the LOBs with excellent energy efficiency and cycling life. This work provides a new idea for the design of oxygen-rich and high-performance electrolyte for lithium-oxygen batteries.
Collapse
Affiliation(s)
- Dayue Du
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China; State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Pengfei Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Guilei Tian
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Haoyang Xu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Xinxiang Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Sheng Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Fengxia Fan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Shuhan Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Chuan Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Chenrui Zeng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China
| | - Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, China; State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu University of Technology, Chengdu, China.
| |
Collapse
|
3
|
Zhang Z, Huang D, Xing S, Li M, Wu J, Zhang Z, Dou Y, Zhou Z. Unleashing the potential of Li-O 2 batteries with electronic modulation and lattice strain in pre-lithiated electrocatalysts. Chem Sci 2024; 15:13209-13217. [PMID: 39183901 PMCID: PMC11339796 DOI: 10.1039/d4sc03242j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 07/20/2024] [Indexed: 08/27/2024] Open
Abstract
Efficient catalysts are indispensable for overcoming the sluggish reaction kinetics and high overpotentials inherent in Li-O2 batteries. However, the lack of precise control over catalyst structures at the atomic level and limited understanding of the underlying catalytic mechanisms pose significant challenges to advancing catalyst technology. In this study, we propose the concept of precisely controlled pre-lithiated electrocatalysts, drawing inspiration from lithium electrochemistry. Our results demonstrate that Li+ intercalation induces lattice strain in RuO2 and modulates its electronic structure. These modifications promote electron transfer between catalysts and reaction intermediates, optimizing the adsorption behavior of Li-O intermediates. As a result, Li-O2 batteries employing Li0.52RuO2 exhibit ultrahigh energy efficiency, long lifespan, high discharge capacity, and excellent rate performance. This research offers valuable insights for the design and optimization of efficient electrocatalysts at the atomic level, paving the way for further advancements in Li-O2 battery technology.
Collapse
Affiliation(s)
- Zhengcai Zhang
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Dulin Huang
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Shuochao Xing
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Minghui Li
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Jing Wu
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Zhang Zhang
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Yaying Dou
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University Tianjin 300071 China
| | - Zhen Zhou
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University Zhengzhou 450001 China
| |
Collapse
|
4
|
Sun C, Cui X, Xiao F, Cui D, Wang Q, Dang F, Yu H, Lian G. Modulating the d-Band Center of RuO 2 via Ni Incorporation for Efficient and Durable Li-O 2 batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400010. [PMID: 38470199 DOI: 10.1002/smll.202400010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Indexed: 03/13/2024]
Abstract
Rechargeable Li-O2 batteries (LOBs) are considered as one of the most promising candidates for new-generation energy storage devices. One of major impediments is the poor cycle stability derived from the sluggish reaction kinetics of unreliable cathode catalysts, hindering the commercial application of LOBs. Therefore, the rational design of efficient and durable catalysts is critical for LOBs. Optimizing surface electron structure via the negative shift of the d-band center offers a reasonable descriptor for enhancing the electrocatalytic activity. In this study, the construction of Ni-incorporating RuO2 porous nanospheres is proposed as the cathode catalyst to demonstrate the hypothesis. Density functional theory calculations reveal that the introduction of Ni atoms can effectively modulate the surface electron structure of RuO2 and the adsorption capacities of oxygen-containing intermediates, accelerating charge transfer between them and optimizing the growth pathway of discharge products. Resultantly, the LOBs exhibit a large discharge specific capacity of 19658 mA h g-1 at 200 mA g-1 and extraordinary cycle life of 791 cycles. This study confers the concept of d-band center modulation for efficient and durable cathode catalysts of LOBs.
Collapse
Affiliation(s)
- Chaoyang Sun
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Xinhang Cui
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117543, Singapore
| | - Fenglong Xiao
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Deliang Cui
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Qilong Wang
- Key Laboratory for Special Functional Aggregated Materials of Education Ministry, School of Chemistry & Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Feng Dang
- School of Materials Science & Engineering, Shandong University, Jinan, 250061, P. R. China
| | - Haohai Yu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Gang Lian
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| |
Collapse
|
5
|
Zhang Y, Wang Y, Zhao W, Zuo P, Tong Y, Yin G, Zhu T, Lou S. Delocalized electronic engineering of TiNb 2O 7 enables low temperature capability for high-areal-capacity lithium-ion batteries. Nat Commun 2024; 15:6299. [PMID: 39060232 PMCID: PMC11282191 DOI: 10.1038/s41467-024-50455-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
High areal capacity and low-temperature ability are critical for lithium-ion batteries (LIBs). However, the practical operation is seriously impeded by the sluggish rates of mass and charge transfer. Herein, the active electronic states of TiNb2O7 material is modulated by dopant and O-vacancies for enhanced low-temperature dynamics. Femtosecond laser-based transient absorption spectroscopy is employed to depict carrier dynamics of TiNb2O7, which verifies the localized structure polarization accounting for reduced transport overpotential, facilitated electron/ion transport, and improved Li+ adsorption. At high-mass loading of 10 mg cm-2 and -30 °C, TNO-x@N microflowers exhibit stable cycling performance with 92.9% capacity retention over 250 cycles at 1 C (1.0-3.0 V, 1 C = 250 mA g-1). Even at -40 °C, a competitive areal capacity of 1.32 mAh cm-2 can be achieved. Such a fundamental understanding of the intrinsic structure-function put forward a rational viewpoint for designing high-areal-capacity batteries in cold regions.
Collapse
Affiliation(s)
- Yan Zhang
- State Key Laboratory of Space Power-Sources, Harbin Institute of Technology, Harbin, China
| | - Yingjie Wang
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
| | - Wei Zhao
- State Key Laboratory of Space Power-Sources, Harbin Institute of Technology, Harbin, China
| | - Pengjian Zuo
- State Key Laboratory of Space Power-Sources, Harbin Institute of Technology, Harbin, China
| | - Yujin Tong
- Faculty of Physics, University of Duisburg-Essen, Duisburg, Germany
| | - Geping Yin
- State Key Laboratory of Space Power-Sources, Harbin Institute of Technology, Harbin, China.
| | - Tong Zhu
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China.
| | - Shuaifeng Lou
- State Key Laboratory of Space Power-Sources, Harbin Institute of Technology, Harbin, China.
| |
Collapse
|
6
|
Wang B, Liu J, Mao C, Wang F, Yuan S, Wang X, Hu Z. A MOF-Gel Based Separator for Suppressing Redox Mediator Shuttling in Li-O 2 Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401231. [PMID: 38860742 DOI: 10.1002/smll.202401231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/14/2024] [Indexed: 06/12/2024]
Abstract
Redox mediators (RMs) are widely utilized in the electrolytes of Li-O2 batteries to catalyze the formation/decomposition of Li2O2, which significantly enhances the cycling performance and reduces the charge overpotential. However, RMs have a shuttle effect by migrating to the Li anode side and inducing Li metal degradation through a parasitic reaction. Herein, a metal-organic framework gel (MOF-gel) separator is proposed to restrain the shuttling of RMs. Compared to traditional MOF nanoparticles, MOF gels form uniform and dense films on the separators. When using Ru(acac)3 (ruthenium acetylacetonate) as an RM, the MOF-gel separator suppresses the shuttling of Ru(acac)3 toward the Li anode side and significantly enhances the performance of Li-O2 batteries. Specifically, Li-O2 batteries exhibit an ultralong cycling life (410 cycles) at a current density of 0.5 A g-1. Moreover, the batteries using the MOF-gel/celgard separator exhibit significantly improved cycling performance (increase by ≈1.6 times) at a high current density of 1.0 A g-1 and a decreased charge/discharge overpotential. This result is expected to guide future development of battery separators and the exploration of redox mediators.
Collapse
Affiliation(s)
- Baoxing Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
- School of Resource & Environment and Safety Engineering, Jining University, Qufu, Shandong, 273155, P. R. China
| | - Jiaheng Liu
- Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Chenghui Mao
- Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Fang Wang
- Translational Pharmaceutical Laboratory, Jining First People's Hospital, Shandong First Medical University, Jining, Shandong, 272000, P. R. China
| | - Shuai Yuan
- Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Xizhang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Zheng Hu
- Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| |
Collapse
|
7
|
Tian G, Xu H, Wang X, Wen X, Liu P, Liu S, Zeng T, Fan F, Wang S, Wang C, Zeng C, Shu C. Controllable Regulation of the Oxygen Redox Process in Lithium-Oxygen Batteries by High-Configuration-Entropy Spinel with an Asymmetric Octahedral Structure. ACS NANO 2024; 18:11849-11862. [PMID: 38662647 DOI: 10.1021/acsnano.4c00867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Designing bifunctional electrocatalysts to boost oxygen redox reactions is critical for high-performance lithium-oxygen batteries (LOBs). In this work, high-entropy spinel (Co0.2Mn0.2Ni0.2Fe0.2Cr0.2)3O4 (HEOS) is fabricated by modulating the internal configuration entropy of spinel and studied as the oxygen electrode catalyst in LOBs. Under the high-entropy atomic environment, the Co-O octahedron in spinel undergoes asymmetric deformation, and the reconfiguration of the electron structure around the Co sites leads to the upward shift of the d-orbital centers of the Co sites toward the Fermi level, which is conducive to the strong adsorption of redox intermediate LiO2 on the surface of the HEOS, ultimately forming a layer of a highly dispersed Li2O2 thin film. Thin-film Li2O2 is beneficial for ion diffusion and electron transfer at the electrode-electrolyte interface, which makes the product easy to decompose during the charge process, ultimately accelerating the kinetics of oxygen redox reactions in LOBs. Based on the above advantages, HEOS-based LOBs deliver high discharge/charge capacity (12.61/11.72 mAh cm-2) and excellent cyclability (424 cycles). This work broadens the way for the design of cathode catalysts to improve oxygen redox kinetics in LOBs.
Collapse
Affiliation(s)
- Guilei Tian
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Haoyang Xu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Xinxiang Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Xiaojuan Wen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Pengfei Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Sheng Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Ting Zeng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Fengxia Fan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Shuhan Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Chuan Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Chenrui Zeng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| | - Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P. R. China
| |
Collapse
|
8
|
Huang ZY, Chen YY, Hao LY, Hua YJ, Lei BX, Liu ZQ. Corner-Sharing Tetrahedrally Coordinated W-V Dual Active Sites on Cu 2 V 2 O 7 for Photoelectrochemical Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307547. [PMID: 37814367 DOI: 10.1002/smll.202307547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/22/2023] [Indexed: 10/11/2023]
Abstract
The sluggish four-electron oxygen evolving reaction is one of the key limitations of photoelectrochemical water decomposition. Optimizing the binding of active sites to oxygen in water and promoting the conversion of *O to *OOH are the key to enhancing oxygen evolution reaction. In this work, W-doped Cu2 V2 O7 (CVO) constructs corner-sharing tetrahedrally coordinated W-V dual active sites to induce the generation of electron deficiency active centers, promote the adsorption of ─OH, and accelerate the transformation of *O to *OOH for water splitting. The photocurrent obtained by the W-modified CVO photoanode is 0.97 mA cm-2 at 1.23 V versus RHE, which is much superior to that of the reported CVO. Experimental and theoretical results show that the excellent catalytic performance may be attributed to the formation of synergistic dual active sites between W and V atoms, and the introduction of W ions reduces the charge migration distance and prolongs the lifetime of photogenerated carriers. Meanwhile, the electronic structure in the center of the d-band is modulated, which leads to the redistribution of the electron density in CVO and lowers the energy barrier for the conversion of the rate-limiting step *O to *OOH.
Collapse
Affiliation(s)
- Zheng-Yi Huang
- School of Chemistry and Chemical Engineering/Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province/Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou, Hainan Normal University, Haikou, 571158, China
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Huangpu Hydrogen Innovation Center, Guangzhou University, Guangzhou Higher Education Mega Center No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Yi-Ying Chen
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Huangpu Hydrogen Innovation Center, Guangzhou University, Guangzhou Higher Education Mega Center No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Le-Yang Hao
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Huangpu Hydrogen Innovation Center, Guangzhou University, Guangzhou Higher Education Mega Center No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Ying-Jie Hua
- School of Chemistry and Chemical Engineering/Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province/Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou, Hainan Normal University, Haikou, 571158, China
| | - Bing-Xin Lei
- School of Chemistry and Chemical Engineering/Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province/Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou, Hainan Normal University, Haikou, 571158, China
- School of Materials and Environment/Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization/Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Minzu University, Nanning, 530105, China
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/Institute of Clean Energy and Materials/Guangzhou Key Laboratory for Clean Energy and Materials/Huangpu Hydrogen Innovation Center, Guangzhou University, Guangzhou Higher Education Mega Center No. 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| |
Collapse
|
9
|
Tian J, Rao Y, Shi W, Yang J, Ning W, Li H, Yao Y, Zhou H, Guo S. Sabatier Relations in Electrocatalysts Based on High-entropy Alloys with Wide-distributed d-band Centers for Li-O 2 Batteries. Angew Chem Int Ed Engl 2023; 62:e202310894. [PMID: 37698488 DOI: 10.1002/anie.202310894] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/13/2023]
Abstract
Li-O2 battery (LOB) is a promising "beyond Li-ion" technology with ultrahigh theoretical energy density (3457 Wh kg-1 ), while currently impeded by the sluggish cathodic kinetics of the reversible gas-solid reaction between O2 and Li2 O2 . Despite many catalysts are developed for accelerating the conversion process, the lack of design guidance for achieving high performance makes catalysts exploring aleatory. The Sabatier principle is an acknowledged theory connecting the scaling relationship with heterogeneous catalytic activity, providing a tradeoff strategy for the topmost performance. Herein, a series of catalysts with wide-distributed d-band centers (i.e., wide range of adsorption strength) are elaborately constructed via high-entropy strategy, enabling an in-depth study of the Sabatier relations in electrocatalysts for LOBs. A volcano-type correlation of d-band center and catalytic activity emerges. Both theoretical and experimental results indicate that a moderate d-band center with appropriate adsorption strength propels the catalysts up to the top. As a demonstration of concept, the LOB using FeCoNiMnPtIr as catalyst provides an exceptional energy conversion efficiency of over 80 %, and works steadily for 2000 h with a high fixed specific capacity of 4000 mAh g-1 . This work certifies the applicability of Sabatier principle as a guidance for designing advanced heterogeneous catalysts assembled in LOBs.
Collapse
Affiliation(s)
- Jiaming Tian
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen, 518057, P. R. China
| | - Yuan Rao
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen, 518057, P. R. China
| | - Wenhui Shi
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jiawei Yang
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
| | - Wenjie Ning
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
| | - Haoyu Li
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen, 518057, P. R. China
| | - Yonggang Yao
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Haoshen Zhou
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
| | - Shaohua Guo
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen, 518057, P. R. China
| |
Collapse
|