Article
Chemistry, Multidisciplinary
Jingyuan Qiao, Zhuoheng Bao, Lingqiao Kong, Xingyu Liu, Chengjie Lu, Meng Ni, Wei He, Min Zhou, Zheng Ming Sun
Summary: In this study, a bifunctional catalyst consisting of MXene and metal compounds was constructed to enhance the catalytic performance of zinc-air batteries (ZABs). The MXene-supported bimetallic heterostructure showed superior activities for oxygen reduction/evolution reactions (ORR/OER), leading to improved performance of aqueous and all-solid-state ZABs.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Zhiyuan Li, Haoqi Yang, Hang Sun, Song Liang, Guolong Lu, Zhenning Liu, Shuqing Kou
Summary: A facile and cost-effective strategy was proposed to in situ grow N-doped carbon nanotubes with encapsulated FeCo alloy nanoparticles on carbon cloths for the application as a self-supported air cathode. The bamboo-like FeCo/N-CNTs@CC catalyst exhibited excellent electrocatalytic activities, showing great potential for practical applications in zinc-air batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Beum Jin Park, Hongdae Lee, Jiyoung Kim, Ho Seok Park
Summary: In this study, multidimensional hybrid architectures of CoSx@srGO/CNT were developed for rechargeable Zn-air batteries. The CoSx@srGO/CNT showed superior bifunctional electrocatalytic activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) compared to CoS2, srGO, and CoSx@srGO. The Zn-air batteries with CoSx@srGO/CNT catalyst exhibited higher specific capacity and maximum power density than Pt/C and IrO2 mixed catalyst, along with long-term cyclability of over 100 cycles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Applied
Jun Li, Yongxia Wang, Zhengyu Yin, Rui He, Yihao Wang, Jinli Qiao
Summary: In this study, a facile coprecipitation method was used to synthesize CoNi anchored carbon nanoparticle/nanotube (CoNi/N-CNN) hybrid with MOFs as precursors for efficient bifunctional oxygen electrode in metal-air batteries. The CoNi/N-CNN catalyst exhibited excellent performance for both ORR and OER, providing high discharge power density and outstanding cycling stability for rechargeable Zn-air batteries. The enhanced electrocatalytic activity was attributed to the strong coupling effect between Co/Ni center sites and defect-rich N-anchored carbon structures.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Ya-yun Li, Qiuming Zou, Zhangjian Li, Dong Xie, Yuan Niu, Jizhao Zou, Xierong Zeng, Junfeng Huang
Summary: The newly synthesized Ni-Fe alloy embedded graphitic carbon electrocatalyst exhibits superior performance in oxygen reaction, with high onset potential and half-wave potential. Additionally, it shows excellent long-term stability and anti-methanol ability, demonstrating great electrocatalytic characteristics.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jun Chen, Liandong Li, Yuanhui Cheng, Yan Huang, Chang Chen
Summary: This study designs a covalent organic polymer to achieve the uniform distribution of transition metals, nitrogen, and carbon precursors in the electrocatalyst. The resulting FeNi@NC electrocatalyst exhibits outstanding performance in both ORR and OER, with high half-wave potential and low potential achievement of 10 mA cm(-2), surpassing commercial platinum/carbon and ruthenium dioxide. Moreover, the self-made zinc-air battery with FeNi@NC air-cathode demonstrates excellent energy density and cycling stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Hang Lei, Liang Ma, Qixiang Wan, Zhuowen Huangfu, Shaozao Tan, Zilong Wang, Wenjie Mai
Summary: This study proposes efficient structural engineering to improve the power density and durability of Zn-air batteries. By confining NiFe alloy nanoparticles into porous carbon nanofibers, the designed bifunctional catalysts exhibit excellent adsorption capacity, diffusion efficiency, and transport scale for oxygen and OH-. The results show remarkable bifunctional activity and long-term stability.
Article
Chemistry, Physical
Tao Yu, Xiaoting Cao, Ruili Song, Lvzhou Li, Xu Dong, Jiangnan Li, Xi Wang, Xiaoshuang Zhou, Ningyi Yuan, Jianning Ding
Summary: By adding an iron source and using pyrolysis and phosphorylation methods, an efficient bifunctional electrocatalyst (FeCo-NC@Co2P-NC) was synthesized on ZIF-67, which exhibited excellent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) activities, outperforming commercial Pt/C and RuO2 catalysts. This study provides a novel strategy for the rational design of efficient non-precious metal electrocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
A. Wang, Y. Hu, H. Wang, Y. Cheng, T. Thomas, R. Ma, J. Wang
Summary: Controllable substitution of Fe in NiCo2O4 can activate its electronic configuration, leading to improved oxygen electrocatalysis activity. Fe-substituted NiCo2O4 nanoparticles embedded in porous N-doped carbon nanofibers exhibit optimized bifunctional activity correlated with Fe atomic content.
MATERIALS TODAY PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Yingjie He, Zahra Abedi, Chuyi Ni, Sarah Milliken, Kevin M. O'Connor, Douglas G. Ivey, Jonathan G. C. Veinot
Summary: CoNi nanoparticle-decorated hollow carbon cubes (CoNi-HCCs) were synthesized using ZIF-67 as a sacrificial template. These CoNi-HCCs exhibited superior performance in zinc-air batteries, including higher discharge potential, charge potential, and peak power density, as well as better cycling stability.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Shuhui Liu, Zibo Cao, Yu Meng, Yajie Li, Weimin Yang, Zheng Chang, Wen Liu, Xiaoming Sun
Summary: Aluminum-air batteries have gained attention due to their high energy density and low cost, but lack of high-performance air cathode hinders commercial application. Research shows that an aerophilic air cathode with high catalytic activity and large three-phase interface demonstrates high onset potential and fast current increase during oxygen reduction reaction, with better stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Mohsen Karimpour, Mehrdad Dorri, Alireza Babaei, Cyrus Zamani, Maryam Soleimani, Mahdi Pourfath
Summary: Metal-air rechargeable batteries are being studied as an alternative to lithium-ion batteries, and MnCo2O4 is found to be a promising oxygen electrocatalyst in these batteries. The effects of surface facets and calcination temperature on the electrochemical properties of MnCo2O4 in zinc-air batteries are investigated experimentally and theoretically. The results show that the {110} facet of MnCo2O4 has superior electrochemical activity compared to the {112} facet, which is important for designing high performance electrocatalyst materials.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Ning He, Wei Ling, Xixi Ji, Chengrong Yu, Shang Liu, Bao Qin, Xuan Zhang, Yexin Zhou, Funian Mo, Hao Lei, Lin Zeng, Meng Lin, Zheng Zhong, Jie Yu, Yan Huang
Summary: This study presents the design of an automatic snorkeling electronic equipment driven by a self-breathing flexible aqueous aluminum-air battery. It integrates the functions of snorkeling and electric energy supply, promoting high efficiency in underwater operations.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Wenhao Tang, Boya Li, Kewei Teng, Xiaodong Wang, Ruiping Liu, Mengwei Wu, Lei Zhang, Pengfei Ren, Junqing Zhang, Ming Feng
Summary: This review focuses on the sluggish reaction kinetics at the oxygen cathode in metal-air batteries, which is a major obstacle to their commercialization. The use of noble-metal electrocatalysts has been a potential solution, but their high cost and scarcity hinder their widespread application. The review discusses the mechanisms of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), proposes principles for bifunctional electrocatalysts, and presents state-of-the-art catalysts based on carbon and transition-metal materials. Additionally, it explores self-supporting 3D noble-metal-free bifunctional ORR/OER catalysts and provides perspectives on the future development of bifunctional electrocatalysts.
JOURNAL OF MATERIOMICS
(2022)
Article
Chemistry, Physical
Yanan Zhang, Jiangbo Wang, Mensah Alfred, Pengfei Lv, Bing Liu, Qufu Wei
Summary: In this study, a novel Co-Nx-enriched electrospun porous carbon nanofibrous bifunctional electrocatalyst was successfully prepared and demonstrated outstanding catalytic activity and stability in both oxygen reduction reaction and oxygen evolution reaction. Furthermore, flexible zinc-air batteries assembled with this catalyst exhibited excellent performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)