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Journal articles on the topic 'Bi₂O₂CO₃ nanosheets'

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Author: Grafiati

Published: 8 June 2024

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1

Peng, Yin, Qian Zhang, and Peng-Fei Kan. "Synthesis of a novel one-dimensional Bi2O2CO3–BiOCl heterostructure and its enhanced photocatalytic activity." CrystEngComm 22, no. 41 (2020): 6822–30. http://dx.doi.org/10.1039/d0ce01181a.

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A novel one-dimensional Bi₂O₂CO₃–BiOCl heterostructure was synthesized. BiOCl nanosheets uniformly and vertically grew onto the Bi₂O₂CO₃ porous rods via crystallographic oriented epitaxial nucleation and growth. Bi₂O₂CO₃–BiOCl displayed excellent photocatalytic activity.

2

Wang, Fang, Ziyan Zhao, Kunhao Zhang, Fan Dong, and Ying Zhou. "Topochemical transformation of low-energy crystal facets to high-energy facets: a case from Bi2O2CO3 {001} facets to β-Bi2O3 {001} facets with improved photocatalytic oxidation of NO." CrystEngComm 17, no. 32 (2015): 6098–102. http://dx.doi.org/10.1039/c5ce01035g.

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Photocatalytically active β-Bi₂O₃ nanosheets exposed with active {001} facets were facilely prepared through annealing Bi₂O₂CO₃ with thermal stable {001} facets.

3

Qin, Hangdao, Yingchang Yang, Wei Shi, and Yuanbin She. "Few-layer Bi2O2CO3 nanosheets derived from electrochemically exfoliated bismuthene for the enhanced photocatalytic degradation of ciprofloxacin antibiotic." RSC Advances 11, no. 23 (2021): 13731–38. http://dx.doi.org/10.1039/d1ra00528f.

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Few-layer 2D Bi₂O₂CO₃ nanosheets derived from electrochemically cathodic exfoliated bismuthene exhibit enhanced photocatalytic degradation of the ciprofloxacin antibiotic.

4

An, Xiaowei, Shasha Li, Xiaoqiong Hao, Xiao Du, Tao Yu, Zhongde Wang, Xiaogang Hao, Abuliti Abudula, and Guoqing Guan. "The in situ morphology transformation of bismuth-based catalysts for the effective electroreduction of carbon dioxide." Sustainable Energy & Fuels 4, no. 6 (2020): 2831–40. http://dx.doi.org/10.1039/d0se00228c.

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An in situ morphological transformation phenomenon accompanied by petal-shaped Bi₂O₂CO₃ nanosheets formation has been observed to help improving electrocatalytic performance.

5

Luo, Haidong, Binxia Zhao, Mengran Zhang, Yuling Liu, Ruixuan Han, and Linxue Liu. "Novel Co-doped Fe3O4/Bi2WO6 core–shell magnetic photocatalysts with enhanced photocatalytic degradation of contaminants." New Journal of Chemistry 43, no. 38 (2019): 15335–41. http://dx.doi.org/10.1039/c9nj03918j.

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6

Yang, Li-Min, Guo-Ying Zhang, Hai-Rong Wang, Xue Bai, Xing-Qi Shen, Jing-Wang Liu, and Dong-Zhao Gao. "Mild synthesis of {001} facet predominated Bi2O2CO3 clusters with outstanding simulated sunlight photocatalytic activities." CrystEngComm 18, no. 20 (2016): 3683–95. http://dx.doi.org/10.1039/c6ce00435k.

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Bi₂O₂CO₃ clusters built up of ultrathin nanosheets with predominated {001} facets were facilely synthesized via a template-free hydrothermal strategy at a mild temperature of 60 °C and exhibit excellent photocatalytic activity.

7

Selvamani, Thangavel, Balasubramaniam Gnana Sundara Raj, Sambandam Anandan, Jerry J. Wu, and Muthupandian Ashokkumar. "Synthesis of morphology-controlled bismutite for selective applications." Physical Chemistry Chemical Physics 18, no. 11 (2016): 7768–79. http://dx.doi.org/10.1039/c5cp07523h.

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Bismutite (Bi₂O₂CO₃) possessing diverse morphologies, namely, nanosheets, nanodiscs and nanoplatelets, was synthesized by a simple controllable method shows excellent materials as adsorbents and photocatalysts for wastewater treatment with supercapacitor activities for energy applications.

8

SUN, PENG, YUJIAN JIN, YUNXUAN ZHAO, JUAN XU, MINDONG CHEN, WENQING YAO, YONGFA ZHU, and FEI TENG. "NOVEL HIERARCHICAL NANORODS OF SILICON-DOPED Bi2O2CO3 AND ITS PHOTOCATALYTIC ACTIVITY." Nano 09, no. 08 (December 2014): 1450094. http://dx.doi.org/10.1142/s1793292014500945.

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The silicon-doped Bi 2 O 2 CO 3 nanorods with the interesting hierarchical structure are synthesized by a simple hydrothermal method. The samples are characterized by XRD, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), high-resolution transmission electron microscopy (HRTEM), Ultraviolet-visible diffuse reflectance spectra (UV-DRS) and nitrogen sorption isotherms. It is found that with the increase of silicon content, the XRD peak of the sample significantly shifts toward a low diffraction angle and the particle morphologies change from nanosheets, nanoflowers to hierarchical nanorods. Moreover, the silicon-doped Bi 2 O 2 CO 3 hierarchical nanorods exhibit improved photocatalytic degradation activities for different types of dyes under simulated solar light irradiation. The improved activity has been mainly attributed to the unique hierarchical nanorods structure and the formation of Si – O – Bi bonds.

9

Zhang, Lili, Zhiqiang Wang, Tong Li, Chun Hu, and Min Yang. "Ultrathin Bi₄O₅Br₂ nanosheets with surface oxygen vacancies and strong interaction with Bi₂O₂CO₃ for highly efficient removal of water contaminants." Environmental Science: Nano 9, no. 4 (2022): 1341–52. http://dx.doi.org/10.1039/d1en01024g.

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10

Wang, Bo, Jingyi Wang, Yan Zhang, Yi Mei, and Peichao Lian. "Electrochemical performance of Bi 2 O 2 CO 3 nanosheets as negative electrode material for supercapacitors." Ceramics International 43, no. 12 (August 2017): 9310–16. http://dx.doi.org/10.1016/j.ceramint.2017.04.092.

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11

Li, Xiao, Xingqiao Wu, Junjie Li, Jingbo Huang, Liang Ji, Zihan Leng, Ningkang Qian, Deren Yang, and Hui Zhang. "Sn-Doped Bi₂O₃ nanosheets for highly efficient electrochemical CO₂ reduction toward formate production." Nanoscale 13, no. 46 (2021): 19610–16. http://dx.doi.org/10.1039/d1nr06038d.

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Sn-Doped Bi2O3 nanosheets showed enhanced catalytic selectivity and activity for CO2RR relative to undoped ones with 2.5% Sn-doped Bi2O3 NSs showing a highest FE of over 93% and a largest current density of nearly 50 mA cm−2 for formate in H-cell.

12

Li, Liexiao, Xiaofeng Sun, Tao Xian, Huajing Gao, Shifa Wang, Zao Yi, Xianwen Wu, and Hua Yang. "Template-free synthesis of Bi₂O₂CO₃ hierarchical nanotubes self-assembled from ordered nanoplates for promising photocatalytic applications." Physical Chemistry Chemical Physics 24, no. 14 (2022): 8279–95. http://dx.doi.org/10.1039/d1cp05952a.

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13

Zhang, Qitao, Bin Xu, Saisai Yuan, Ming Zhang, and Teruhisa Ohno. "Improving g-C 3 N 4 photocatalytic performance by hybridizing with Bi 2 O 2 CO 3 nanosheets." Catalysis Today 284 (April 2017): 27–36. http://dx.doi.org/10.1016/j.cattod.2016.10.027.

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14

Zu, Xiaolong, Yuan Zhao, Xiaodong Li, Runhua Chen, Weiwei Shao, Zhiqiang Wang, Jun Hu, et al. "Ultrastable and Efficient Visible‐light‐driven CO 2 Reduction Triggered by Regenerative Oxygen‐Vacancies in Bi 2 O 2 CO 3 Nanosheets." Angewandte Chemie International Edition 60, no. 25 (May 10, 2021): 13840–46. http://dx.doi.org/10.1002/anie.202101894.

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15

Zu, Xiaolong, Yuan Zhao, Xiaodong Li, Runhua Chen, Weiwei Shao, Zhiqiang Wang, Jun Hu, et al. "Ultrastable and Efficient Visible‐light‐driven CO 2 Reduction Triggered by Regenerative Oxygen‐Vacancies in Bi 2 O 2 CO 3 Nanosheets." Angewandte Chemie 133, no. 25 (May 10, 2021): 13959–65. http://dx.doi.org/10.1002/ange.202101894.

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16

Liu, Subiao, Xue Feng Lu, Jing Xiao, Xin Wang, and Xiong Wen (David) Lou. "Bi 2 O 3 Nanosheets Grown on Multi‐Channel Carbon Matrix to Catalyze Efficient CO 2 Electroreduction to HCOOH." Angewandte Chemie International Edition 58, no. 39 (September 23, 2019): 13828–33. http://dx.doi.org/10.1002/anie.201907674.

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17

Liu, Subiao, Xue Feng Lu, Jing Xiao, Xin Wang, and Xiong Wen (David) Lou. "Bi 2 O 3 Nanosheets Grown on Multi‐Channel Carbon Matrix to Catalyze Efficient CO 2 Electroreduction to HCOOH." Angewandte Chemie 131, no. 39 (August 16, 2019): 13966–71. http://dx.doi.org/10.1002/ange.201907674.

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18

Hu, Dandan, Kaiyou Zhang, Qi Yang, Mingjun Wang, Yi Xi, and Chenguo Hu. "Super-high photocatalytic activity of Fe 2 O 3 nanoparticles anchored on Bi 2 O 2 CO 3 nanosheets with exposed {0 0 1} active facets." Applied Surface Science 316 (October 2014): 93–101. http://dx.doi.org/10.1016/j.apsusc.2014.07.185.

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19

Liu, Shao-Qing, Ehsan Shahini, Min-Rui Gao, Lu Gong, Peng-Fei Sui, Tian Tang, Hongbo Zeng, and Jing-Li Luo. "Bi₂O₃ Nanosheets Grown on Carbon Nanofiber with Inherent Hydrophobicity for High-Performance CO₂ Electroreduction in a Wide Potential Window." ACS Nano 15, no. 11 (October 21, 2021): 17757–68. http://dx.doi.org/10.1021/acsnano.1c05737.

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20

Li, Jinbo, Zhaohui Wu, Shumin Zhang, Kaiqiang Xu, Nan Ma, Wenhui Feng, Min Wu, Difa Xu, Shiying Zhang, and Jie Shen. "Hydroxyl-assisted iodine ions intercalating Bi₂O₂CO₃ nanosheets to construct an interlayered bridge for enhanced photocatalytic degradation of phenols." CrystEngComm 24, no. 7 (2022): 1377–86. http://dx.doi.org/10.1039/d1ce01190a.

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21

Gupta, Tushar, Nicole Rosza, Markus Sauer, Alexander Goetz, Maximilian Winzely, Jakob Rath, Shaghayegh Naghdi, et al. "Sonochemical Synthesis of Large Two‐Dimensional Bi ₂ O ₂ CO ₃ Nanosheets for Hydrogen Evolution in Photocatalytic Water Splitting (Adv. Sustainable Syst. 11/2022)." Advanced Sustainable Systems 6, no. 11 (November 2022): 2270026. http://dx.doi.org/10.1002/adsu.202270026.

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22

Liu, Yumin, Peng Zhang, Hua Lv, Jing Guang, Shuang Li, and Juhui Jiang. "A nanosheet-like BiPO4/Bi2O2CO3 heterostructured photocatalyst with enhanced photocatalytic activity." RSC Advances 5, no. 102 (2015): 83764–72. http://dx.doi.org/10.1039/c5ra16146k.

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23

Wang, Ke, Zipeng Xing, Meng Du, Shiyu Zhang, Zhenzi Li, Kai Pan, and Wei Zhou. "Plasmon Ag and CdS quantum dot co-decorated 3D hierarchical ball-flower-like Bi5O7I nanosheets as tandem heterojunctions for enhanced photothermal–photocatalytic performance." Catalysis Science & Technology 9, no. 23 (2019): 6714–22. http://dx.doi.org/10.1039/c9cy01945f.

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Bi₅O₇I/Ag/CdS tandem heterojunction photocatalysts show excellent photothermal and photocatalytic performance, which is attributed to the formation of tandem heterojunctions, surface plasmon resonance, and 3D hierarchical structure.

24

Chen, Liqun, Zhuo Mao, Yang Wang, Yong Kang, Ying Wang, Lin Mei, and Xiaoyuan Ji. "Edge modification facilitated heterogenization and exfoliation of two-dimensional nanomaterials for cancer catalytic therapy." Science Advances 8, no. 39 (September 30, 2022). http://dx.doi.org/10.1126/sciadv.abo7372.

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The rapid recombination of electron-hole pairs and limited substrates are the most critical factors astricting the effect of catalytic therapy. Thus, two-dimensional interplanar heterojunction (BiOCl/Bi 2 O 3 ) that prolongs the lifetime of excited electrons and holes and extends the selectivity of substrates under ultrasound irradiation is prepared to facilitate high-performance cancer therapy. An edge modification displacing marginal BiOCl to Bi 2 O 3 is proposed to construct the interplanar heterojunction, promoting ultrathin nanosheets exfoliation due to the enhanced edge affinity with H 2 O. The spontaneously aligning Fermi levels mediate a built-in electric field–guided Z-scheme interplanar heterojunction, retard electron-hole pairs recombination, and improve redox potentials. Hence, these high-powered electrons and holes are capable of catalyzing diverse and stable substrates, such as the reduction reactions, O 2 → ·O 2 − and CO 2 → CO, and oxidation reactions, GSH → GSSG and H 2 O → ·OH. The Z-scheme interplanar heterojunction with the extending substrates selectivity completely breaks the tumor microenvironment limitation, exhibiting high anticancer activity.

25

Guan, Meili, Ni Lu, Xuan Zhang, Qiuwan Wang, Jian Bao, Guiye Chen, Hao Yu, Huaming Li, Jiexiang Xia, and Xuezhong Gong. "Engineering of oxygen vacancy and bismuth cluster assisted ultrathin Bi₁₂O₁₇Cl₂ nanosheets with efficient and selective photoreduction of CO₂ to CO." Carbon Energy, September 15, 2023. http://dx.doi.org/10.1002/cey2.420.

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AbstractThe photocatalytic conversion of CO2 into solar‐powered fuels is viewed as a forward‐looking strategy to address energy scarcity and global warming. This work demonstrated the selective photoreduction of CO2 to CO using ultrathin Bi12O17Cl2 nanosheets decorated with hydrothermally synthesized bismuth clusters and oxygen vacancies (OVs). The characterizations revealed that the coexistences of OVs and Bi clusters generated in situ contributed to the high efficiency of CO2–CO conversion (64.3 μmol g−1 h−1) and perfect selectivity. The OVs on the facet (001) of the ultrathin Bi12O17Cl2 nanosheets serve as sites for CO2 adsorption and activation sites, capturing photoexcited electrons and prolonging light absorption due to defect states. In addition, the Bi‐cluster generated in situ offers the ability to trap holes and the surface plasmonic resonance effect. This study offers great potential for the construction of semiconductor hybrids as multiphotocatalysts, capable of being used for the elimination and conversion of CO2 in terms of energy and environment.

26

Yang, Bixia, Weilong Dong, Chongbing Zhu, Xinlian Huang, Yunhui Han, Yanting Zheng, Jiawei Yan, Zanyong Zhuang, and Yan Yu. "Reinforcing 2D Single‐Crystal Bi₂O₂CO₃ with Additional Interlayer Carbonates by CO₂‐Assisted Solid‐to‐Solid Phase Transition." Small, April 25, 2024. http://dx.doi.org/10.1002/smll.202401559.

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AbstractA facile gaseous CO2 mediated solid‐to‐solid transformation principle is adopted to insert additional CO32− anions into the thin single‐crystal nanosheets of Bi2O2CO3, which is built of periodic arrays of intrinsic CO32− anions and (Bi2O2)2+ layers. The additional CO32− anions create abundant defects. The Bi2O2CO3 nanosheets with rich interlayer CO32− exhibit superior electronic properties and charge transfer kinetics than the pristine single‐crystal 2D Bi2O2CO3 and display enhanced catalytic activity in photocatalytic CO2 reduction reaction and the photocatalytic oxidative degradation of organic pollutants. This work thus illustrates interlayer engineering as a flexible means to build layered 2D materials with excellent properties.

27

Li, Xiao, Ningkang Qian, Liang Ji, Xingqiao Wu, Junjie Li, Jingbo Huang, Yucong Yan, Deren Yang, and Hui Zhang. "Enhanced electrocatalytic reduction of CO₂ to formate via doping Ce in Bi₂O₃ nanosheets." Nanoscale Advances, 2022. http://dx.doi.org/10.1039/d2na00141a.

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28

Ávila-Bolívar, Beatriz, Mauricio Lopez Luna, Fengli Yang, Aram Yoon, Vicente Montiel, José Solla-Gullón, See Wee Chee, and Beatriz Roldan Cuenya. "Revealing the Intrinsic Restructuring of Bi₂O₃ Nanoparticles into Bi Nanosheets during Electrochemical CO₂ Reduction." ACS Applied Materials & Interfaces, February 26, 2024. http://dx.doi.org/10.1021/acsami.3c18285.

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29

Ji, Mengxia, Jie Feng, Junze Zhao, Yi Zhang, Bin Wang, Jun Di, Xinyuan Xu, Ziran Chen, Jiexiang Xia, and Huaming Li. "Defect-Engineered Bi₂₄O₃₁Cl₁₀ Nanosheets for Photocatalytic CO₂ Reduction to CO." ACS Applied Nano Materials, November 15, 2022. http://dx.doi.org/10.1021/acsanm.2c04232.

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30

Huang, Qun, Xuelan Sha, Rui Yang, Haibo Li, and Juan Peng. "Electrochemical Conversion of CO₂ into Formate Boosted by In Situ Reconstruction of Bi-MOF to Bi₂O₂CO₃ Ultrathin Nanosheets." ACS Applied Materials & Interfaces, March 8, 2024. http://dx.doi.org/10.1021/acsami.4c01120.

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31

Jing, Lingyan, Qiang Tian, Wenyi Wang, Xuan Li, Qi Hu, Hengpan Yang, and Chuanxin He. "Unveiling Favorable Microenvironment on Porous Doped Carbon Nanosheets for Superior H₂O₂ Electrosynthesis in Neutral Media." Advanced Energy Materials, February 21, 2024. http://dx.doi.org/10.1002/aenm.202304418.

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AbstractDesigning effective electrocatalysts tailored for targeted reactions requires fundamental insights into the structure dependence of the reaction microenvironment. Herein, inspired by finite element simulations, N,O co‐doped carbon nanosheets featuring a hierarchical micro/mesoporous structure to form an oxygen‐rich and local alkaline‐like microenvironment for the two‐electron oxygen reduction reaction (2e− ORR) in a neutral medium are designed. The in situ and ex situ test results confirmed that the micro/mesoporous carbon architecture can elevate the local pH and accelerate the generation of intermediates (*O2, *OOH), leading to high‐efficiency H2O2 production. Utilizing this favorable microenvironment, N,O‐CNS0.5 demonstrated exceptional H2O2 electrosynthesis performance in neutral media, achieving a superior H2O2 yield rate (6705 mmol gcatalyst−1 h−1 in a flow cell). Additionally, comparative experiments and density‐functional theory calculations provided confirmation of the bi‐doping of N and O as the active origin responsible for the electrochemical 2e− ORR. This study synergistically manipulates the reaction microenvironment and active sites, providing an opportunity for efficient H2O2 electro‐production in a neutral medium.

32

Gupta, Tushar, Nicole Rosza, Markus Sauer, Alexander Goetz, Maximilian Winzely, Jakob Rath, Shaghayegh Naghdi, et al. "Sonochemical Synthesis of Large Two‐Dimensional Bi ₂ O ₂ CO ₃ Nanosheets for Hydrogen Evolution in Photocatalytic Water Splitting." Advanced Sustainable Systems, August 28, 2022, 2100326. http://dx.doi.org/10.1002/adsu.202100326.

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33

Tan, Zhonghao, Jianling Zhang, Yisen Yang, Jiajun Zhong, Yingzhe Zhao, Jingyang Hu, Yanyue Wang, and Zhuizhui Su. "Continuous Production of Formic Acid Solution from Electrocatalytic CO ₂ Reduction Using Mesoporous Bi ₂ O ₃ Nanosheets as Catalyst." CCS Chemistry, October 27, 2023, 1–10. http://dx.doi.org/10.31635/ccschem.023.202303298.

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34

Wang, Kai, Yue Du, Yuan Li, Xiaoyong Wu, Haiyan Hu, Guohong Wang, Yao Xiao, Shulei Chou, and Gaoke Zhang. "Atomic‐level insight of sulfidation‐engineered Aurivillius‐related Bi ₂ O ₂ SiO ₃ nanosheets enabling visible light low‐concentration CO ₂ conversion." Carbon Energy, September 26, 2022. http://dx.doi.org/10.1002/cey2.264.

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35

Li, Yan-Yang, Yue-Yue Li, Xu Liang, Pan Yuan, Cheng-Cai Zhu, Xiaobiao Liu, Hong-Chang Yao, and Zhong-Jun Li. "Atomically Thin Bi₂O₂(OH)_1+x(NO₃)_1–x Nanosheets with Regulated Surface Composition for Enhanced Photocatalytic CO₂ Reduction." ACS Applied Nano Materials, May 15, 2022. http://dx.doi.org/10.1021/acsanm.2c00962.

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36

Wang, Yuxuan, Chenhui Qiu, Yujing Xie, Lei Wang, Jing Ding, Jinfeng Zhang, Hui Wan, and Guofeng Guan. "Intentionally Introducing Oxygen Vacancies and Ti³⁺ Defects on the Surface of Bi₄Ti₃O₁₂ Nanosheets for Promoting the Photoreduction of CO₂ to CH₃OH." ACS Applied Nano Materials, January 29, 2024. http://dx.doi.org/10.1021/acsanm.3c05346.

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37

Wang, Jianting, Yunyun Gong, Meichao Gao, Yanping Zheng, Yuanyuan Feng, Meiyu Xu, Qian Chu, and Junfeng Yan. "Bi₂O₂CO₃ Nanosheet Composites with Bi-Based Metal–Organic Frameworks for Photocatalytic H₂O₂ Production." ACS Applied Nano Materials, December 27, 2023. http://dx.doi.org/10.1021/acsanm.3c05030.

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38

Cao, Xueying, Yadong Tian, Jizhen Ma, Weijian Guo, Wenwen Cai, and Jintao Zhang. "Strong P‐D Orbital Hybridization on Bismuth Nanosheets for High Performing CO₂ Electroreduction." Advanced Materials, November 27, 2023. http://dx.doi.org/10.1002/adma.202309648.

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AbstractSingle‐atom alloys (SAAs) show great potential for a variety of electrocatalytic reactions. However, the atomic orbital hybridization effect of SAAs on the electrochemical reactions is unclear yet. Herein, we show the in situ confinement of vanadium/molybdenum atoms on bismuth nanosheet to create SAAs with rich grain boundaries. With the detailed analysis of microstructure and composition, the strong p‐d orbital hybridization between bismuth and vanadium enables the exceptional electrocatalytic performance for carbon dioxide (CO2) reduction with the Faradaic efficiency nearly 100% for C1 products in a wide potential range from −0.6 to −1.4 V, and a long‐term electrolysis stability for 90 h. In‐depth in situ investigations with theoretical computations reveal that the electron delocalization towards vanadium atoms via the p‐d orbital hybridization evokes the bismuth active centers for efficient CO2 activation via the σ‐donation of O‐to‐Bi, thus reduces protonation energy barriers for formate production. With such fundamental understanding, SAA electrocatalyst was employed to fabricated the solar‐driven electrolytic cell of CO2 reduction and 5‐hydroxymethylfurfural oxidation, achieving an outstanding 2,5‐furandicarboxylic acid yield of 90.5%. This study demonstrates a feasible strategy to rationally design advanced SAA electrocatalysts via the basic principles of p‐d orbital hybridization.This article is protected by copyright. All rights reserved

39

Chen, Zhanpeng, Jiabi Jiang, Mingjun Jing, Yansong Bai, Xiaoyan Zhang, Wenhui Deng, Yufeng Wu, et al. "Covalent organic framework‐derived Fe, Co‐nitrogen codoped carbon as a bifunctional electrocatalyst for rechargeable efficient Zn–air batteries." Carbon Neutralization, May 27, 2024. http://dx.doi.org/10.1002/cnl2.145.

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AbstractThe development of cathode materials with controllable physicochemical structures and explicit catalytic sites is important in rechargeable Zn–air batteries (ZABs). Covalent organic frameworks (COFs) have garnered increasing attention owing to their facile synthesis methods, ordered pore structure, and selectivity of functional groups. However, the sluggish kinetics of oxygen evolution reaction (OER) or oxygen reduction reaction (ORR) inhibit their practical applications in ZABs. Herein, nucleophilic substitution is adopted to synthesize pyridine bi‐triazine covalent organic framework (denoted as O‐COF), and meanwhile, ionothermal conversion synthesis is employed to load MOx (M=Fe, Co) onto carbon nanosheet (named as FeCo@NC) to modulate the electronic structure. The Fe, Co‐N codoped carbon material possesses a large portion of pyridinic N and M‐N, high graphitization, and a larger BET surface area. An outstanding bifunctional activity has been exhibited in FeCo@NC, which provides a small voltage at 10 mA cm−2 for OER (E10 = 1.67 V) and a remarkable half‐wave voltage for ORR (E1/2 = 0.86 V). More impressively, when assembling ZABs, it displays notable rate performance, significant specific capacity (783.9 mAh gZn−1), and satisfactory long‐term endurance. This method of regulating covalent organic framework and ionothermal synthesis can be extended to design diverse catalysts.

40

Zhang, Yangyang, Yanxu Chen, Rong Liu, Xiaowen Wang, Huanhuan Liu, Yin Zhu, Qizhu Qian, Yafei Feng, Mingyu Cheng, and Genqiang Zhang. "Oxygen vacancy stabilized Bi ₂ O ₂ CO ₃ nanosheet for CO ₂ electroreduction at low overpotential enables energy efficient CO‐production of formate." InfoMat, November 2, 2022. http://dx.doi.org/10.1002/inf2.12375.

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41

Xu, You, Yiyi Guo, Youwei Sheng, Hongjie Yu, Kai Deng, Ziqiang Wang, Xiaonian Li, Hongjing Wang, and Liang Wang. "Selective CO ₂ Electroreduction to Formate on Polypyrrole‐Modified Oxygen Vacancy‐Rich Bi ₂ O ₃ Nanosheet Precatalysts by Local Microenvironment Modulation." Small, April 14, 2023. http://dx.doi.org/10.1002/smll.202300001.

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42

Li, Junke, Mei Li, li youji, and Zhiliang Jin. "Lotus-Leaf-Like Bi <sub>2</sub>O <sub>2</sub>CO <sub>3</sub> Nanosheet Combined with Mo <sub>2</sub>S <sub>3</sub> for Higher Photocatalytic Hydrogen Evolution." SSRN Electronic Journal, 2021. http://dx.doi.org/10.2139/ssrn.3982921.

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