Article
Chemistry, Multidisciplinary
Tianlun Ren, Zuan Yu, Hongjie Yu, Kai Deng, Ziqiang Wang, Xiaonian Li, Hongjing Wang, Liang Wang, You Xu
Summary: This study presents a system integrating nitrate reduction reaction (NO3RR) with polyethylene terephthalate (PET) hydrolysate oxidation for the simultaneous upcycling of nitrate wastewater and PET plastic waste. A Ru-incorporated Co-based metal-organic framework is developed as a bifunctional precatalyst, functioning as active catalysts for NO3RR and PET hydrolysate oxidation. A two-electrode nitrate/PET hydrolysate coelectrolysis system achieves a current density of 50 mA cm(-2) at a cell voltage of only 1.53 V, realizing the simultaneous production of ammonia and formate at a lower energy consumption. This study provides a concept for the construction of coelectrolysis systems for upcycling of nitrate wastewater and PET plastic waste.
Article
Engineering, Environmental
Yujie Wang, Wanqiang Yu, Xiao Li, Jiayuan Yu, Weijia Zhou
Summary: Nitrogenous pollutants have caused serious environmental pollution and pose threats to human life and the ecological environment. The electrochemical reduction of nitrogenous pollutants to ammonia using clean electric energy is considered an ideal technology for their recovery and utilization. Recent advancements in gas diffusion electrodes, catalyst surface enrichment, and tandem catalytic sites have helped overcome limitations such as low solubility, slow mass transfer, low partial current density, and hydrogen production competition. Furthermore, the combination of nitrogenous pollutant reactions with carbon dioxide reduction reactions has expanded their application scope. This review highlights research progress in nitrogenous pollutants reduction, presents challenges and possible future directions, and aims to provide suggestions for industrial application of electrochemical reduction of nitrogenous pollutants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yang Liu, Jiawang Ma, Shenglong Huang, Shuyu Niu, Shuyan Gao
Summary: This study explores the conversion of nitrogen to ammonia through plasma oxidation of air to produce nitrate, which is then reduced to ammonia using highly dispersed Cu-Fe nanoalloy catalysts. The optimized catalyst exhibits high ammonia yield rate and Faraday efficiency. The findings provide a new pathway for ammonia synthesis and offer insights into the design of high-performance NRA catalysts.
Article
Chemistry, Applied
Ling Ouyang, Jie Liang, Yongsong Luo, Dongdong Zheng, Shengjun Sun, Qian Liu, Mohamed S. Hamdy, Xuping Sun, Binwu Ying
Summary: Artificial electrocatalytic ammonia synthesis has gained significant attention as it can utilize clean renewable electricity to regulate nitrogen circulation and promote circular nitrogen economy. This research article reviews recent advances in electrocatalytic ammonia synthesis, including different synthesis routes and catalysts, as well as highlighting challenges and future research needs.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Physical
Yiyang Zhou, Ruizhi Duan, Hao Li, Miao Zhao, Chunmei Ding, Can Li
Summary: A Cu1Co5 alloy was found to exhibit high current density and Faradaic efficiency for electrocatalytic nitrate reduction, achieved by promoting the water dissociation process. This discovery opens possibilities for designing more efficient catalysts for nitrate reduction under alkaline conditions.
Article
Chemistry, Physical
Daoping He, Hideshi Ooka, Yamei Li, Yujeong Kim, Akira Yamaguchi, Kiyohiro Adachi, Daisuke Hashizume, Naohiro Yoshida, Sakae Toyoda, Sun Hee Kim, Ryuhei Nakamura
Summary: This study reports the electrochemical regulation of a nitrite reduction network using a molybdenum sulfide catalyst by modulating the thermodynamic driving force of proton and electron transfer. The strategy is based on the theory of sequential proton-electron transfer and enables selective regulation of the desired reactions with high selectivity.
Article
Chemistry, Physical
Jiali Wang, Zijun Sun, Yaru Li, Lijun Guo, Yunfang Wang, Caimei Fan, Yawen Wang, Rui Li, Xiaochao Zhang, Feifei Li, Zhuobin Yu, Jianxin Liu
Summary: The electrocatalytic reduction of nitrate to ammonia offers a new way to generate ammonia from waste water, but the competition between nitrate conversion and hydrogen evolution reaction (HER) limits its development. This study synthesized MoS2 with sulfur vacancies (SVs) and used these SVs to promote the production of ammonia. MoS2 with SVs showed higher ammonia synthesis performance and faradaic efficiency. The research enhances our understanding of how to handle the content of MoS2 with SVs when preparing monolayered MoS2 with special catalytic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jinlu Wang, Shengbo Zhang, Chenchen Wang, Ke Li, Yuankang Zha, Min Liu, Haimin Zhang, Tongfei Shi
Summary: This study successfully achieved ammonia production under ambient conditions through the synthesis of CuCo2O4 spinel with high electrocatalytic activity. The electrocatalyst exhibits high NH3 yield rate and high faradaic efficiency at lower voltages.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Yang Wang, Sara. Rahimnejad, Wu-Ji Sun, Lan-Xin Li, Hao-Yu Zhang, Qiang Cao, Jing-Hui He
Summary: Fe1Cu2@MXene bimetallic catalysts are capable of efficiently catalyzing the electrocatalytic reduction of NO3- and achieving complete removal of low NO3- concentrations with high selectivity for NH3.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Letter
Chemistry, Multidisciplinary
Jing Wang, Yian Wang, Chao Cai, Yushen Liu, Duojie Wu, Maoyu Wang, Menghao Li, Xianbin Wei, Minhua Shao, Meng Gu
Summary: The electrochemical nitrate reduction reaction (NO3RR) is a promising alternative route to produce ammonia (NH3) sustainably. Cu-doped Fe3O4 flakes are fabricated and demonstrated to be excellent catalysts for electrochemical conversion of NO3- to NH3, with high Faradaic efficiencies and NH3 yields. Theoretical calculations show that Cu doping facilitates the reaction thermodynamically. These results highlight the feasibility of improving NO3RR activity using heteroatom doping strategies.
Article
Chemistry, Multidisciplinary
Wanqiang Yu, Jiayuan Yu, Man Huang, Yujie Wang, Yijie Wang, Jiawei Li, Hong Liu, Weijia Zhou
Summary: CuNi alloy nanoparticles were synthesized on a Cu foil by laser irradiation for efficient electrocatalytic reduction of nitrate into ammonia. The synthesized CuNi NPs showed high performance and stability, and were used to construct a high-power density Zn-nitrate battery.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Jing Wang, Chao Cai, Yian Wang, Xuming Yang, Duojie Wu, Yuanmin Zhu, Menghao Li, Meng Gu, Minhua Shao
Summary: The electrochemical nitrate reduction reaction (NITRR) is an attractive method for ammonia synthesis. By designing ultrathin CoOx nanosheets with abundant surface oxygen as catalysts, the efficiency of NITRR can be increased, hydrogen evolution reaction can be suppressed, and the yield of ammonia can be enhanced.
Article
Nanoscience & Nanotechnology
Wenjie Luo, Shilu Wu, Yingyang Jiang, Peng Xu, Jinxuan Zou, Jinjie Qian, Xuemei Zhou, Yongjie Ge, Huagui Nie, Zhi Yang
Summary: In this study, single-stranded deoxyribonucleic acid (ssDNA)-templated copper nanoclusters (CuNCs) were synthesized for the electrocatalytic production of ammonia (NH3). The involvement of ssDNA optimized water distribution and H-bond network connectivity, enhancing proton generation on the electrode surface and facilitating the kinetics of the nitrate reduction reaction (NO3RR). Electrochemical tests further confirmed the efficiency of ssDNA-templated CuNCs, achieving a high NH3 yield rate of 2.62 mg h-1 cm-2 and a Faraday efficiency of 96.8% at -0.6 V vs reversible hydrogen electrode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Luisa Barrera, Rachel Silcox, Katherine Giammalvo, Erika Brower, Emily Isip, Rohini Bala Chandran
Summary: This study investigates the effects of NO3- concentration and pH conditions on the electrochemical reduction to ammonia with Cu electrodes. The results show that reaction kinetics are pH- and concentration-dependent. The highest NH3 production efficiency is achieved at pH 14 and 1 M NaNO3, while the lowest is at pH 8. Surface roughness and effective double-layer capacitance play a greater role in 0.1 M NaNO3 solutions, while other factors are more significant for 1 M NaNO3 tests.
Article
Engineering, Environmental
Miao Liu, Zhenghao Lu, Linghan Yang, Renmin Gao, Xinying Zhang, Yongjing Wang, Yonghao Wang
Summary: Electrocatalytic reduction of nitrate to ammonia was achieved with 100% selectivity using Co-N-C catalyst prepared by pyrolysis of Co-based metal organic framework at 700°C under optimum experimental conditions. The reduction process was found to proceed through chemical adsorption rather than electrostatic adsorption, and no harmful nitrite was produced. The present work not only provides high performance for selectively electrocatalytic reduction of nitrate to ammonia, but also offers new inspiration for the preparation of other Co-based functional materials to reduce nitrite production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Guoqiang Gan, Shiying Fan, Xinyong Li, Zhongshen Zhang, Zhengping Hao
Summary: Volatile organic compounds (VOCs) are significant pollutants in the environment due to their toxicity, volatility, and poor degradability. Controlling their emission is urgent, and efficient technologies for removal and recovery are of great importance. Adsorption and membrane separation processes have been extensively studied and favored for their industrial prospects.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Xuecheng Guo, Shiying Fan, Xinyong Li, Qidong Zhao, Jinsuo Gao, Moses O. Tade, Shaomin Liu
Summary: This study reports a new method to construct a three-dimensional ordered hierarchical porous carbon aerogel by directional freeze-casting and metal-organic framework-derived synergistic strategy. The as-prepared aerogel, used as a freestanding flexible electrode, shows high efficiency in ethylene production. The higher Faradaic efficiency and ethylene selectivity are attributed to the synergistic effects of directional ordered channels and hierarchical pore structures.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Zhifan Yin, Shiying Fan, Xinyong Li, Moses O. Tade, Shaomin Liu
Summary: The hierarchical CaFe2O4 core-shell hollow microspheres with high surface area and strong visible-light absorption capability were successfully fabricated by a solvothermal approach followed by heat treatment. The formation mechanism of the hollow structure was proposed based on characterization results. The CaFe2O4 core-shell hollow microspheres exhibited a degradation ratio of 82.0% for 1,2-dichlorobenzene under visible light irradiation. The catalytic oxidation process and degradation mechanism on the CaFe2O4 surface were clarified using in situ Fourier transform infrared technology.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Chunpeng Bai, Shiying Fan, Xinyong Li, Zhaodong Niu, Jing Wang, Zhiyuan Liu, Dongke Zhang
Summary: This study investigates the void-confinement effect of hollow nanoreactors on intermediates using electrochemical NO reduction to NH3 as a probe reaction. The results confirm that the void-confinement effect is the main reason for the enhanced efficiency of the reaction, and theoretical calculations suggest that the Cu sites in the nanoreactors are favorable for the formation of intermediates. This work provides valuable insights and strategies for improving catalytic reactions.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Xinyang Wang, Xinyong Li, Shiying Fan, Penglei Wang, Yu Qin, Moses O. Tade, Shaomin Liu
Summary: Ag-doped Co3O4 porous nanosheets showed superior catalytic activity in the reduction of NO with CO, with 0.02AgCo catalyst exhibiting the best performance. The enhanced catalytic activity of xAgCo could be attributed to the optimized CO adsorption, promoted NO dissociation, and the formation of *NCO species.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Meichun Qin, Shiying Fan, Xinyong Li, Zhaodong Niu, Chunpeng Bai, Guohua Chen
Summary: In this study, the electrocatalytic upgrading of n-valeraldehyde to octane with higher activity and selectivity was achieved using Au single-atom catalysts (SACs)-NiMn2O4 spinel synergetic composites. Experimental and theoretical calculations demonstrated that Au single-atoms occupy surface Ni2+ vacancies and play a dominant role in the selective oxidation of n-valeraldehyde. The surface modification of the spinel structure by the single-atom Au lowers the adsorption energy of n-valeraldehyde molecules and accelerates their conversion into octane.
Article
Chemistry, Multidisciplinary
Liang Wang, Shiying Fan, Moses O. Tade, Shaomin Liu, Xinyong Li
Summary: Capturing CO2 from flowing flue gases through adsorption technology is crucial for reducing CO2 emission to the atmosphere. In this study, nitrogen-doped carbon aerogels (NCAs) with high specific surface area and interconnected porous structures containing abundant pyridinic nitrogen and pyrrolic nitrogen were synthesized. The NCA-1-2 sample exhibited high CO2 adsorption capacity and CO2/N2 selectivity, making it a promising material for CO2 capture and separation.
Article
Nanoscience & Nanotechnology
Guoqiang Gan, Fengquan Xu, Xinyong Li, Shiying Fan, Chunpeng Bai, Qidong Zhao, Moses O. Tade, Shaomin Liu, Wenjun Zhang
Summary: The influence of crystal phase on the electrocatalytic performance and active sites of CuFe2O4 spinel for the electrochemical dechlorination of 1,2-dichloroethane is studied. A higher activity and ethylene selectivity are observed for the cubic phase compared to the tetragonal phase, indicating the significant enhancement of electrocatalytic performance by the cubic crystal structure. The octahedral Fe atom on the surface of cubic CuFe2O4(311) is identified as the active site responsible for ethylene production with an energy barrier of 0.40 eV. This work highlights the importance of crystal phase engineering for optimizing electrocatalytic performance and provides an efficient strategy for the development of advanced electrocatalysts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Zhiyuan Liu, Shiying Fan, Xinyong Li, Zhaodong Niu, Jing Wang, Chunpeng Bai, Jun Duan, Moses O. Tade, Shaomin Liu
Summary: We demonstrate a composite photocatalyst for nitric oxide conversion with a Cu-Fe alloy, graphitic carbon nitride (g-C3N4), and ZnIn2S4. The superior photocatalytic performance of 6.45-fold that of g-C3N4 was confirmed. The delay effect on charge recombination was observed through time-resolved photoluminescence, and heterojunction establishment was attributed to the hole-trapping ability of ZnIn2S4. The combined effects of the Cu-Fe alloy were confirmed by NO-specific adsorption and conversion experiments, and the active species involved were examined via electron spin resonance. Density functional theory calculations revealed the molecular mechanisms of photocatalytic conversion of NO to NO3-. Therefore, g-C3N4|ZnIn2S4|CuFe has potential for sustainable and efficient pollutant conversion.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Yiyuan Tao, Shiying Fan, Xinyong Li, Jing Yang, Jingang Wang, Moses O. Tade, Shaomin Liu
Summary: By adjusting the ratio of Cu/Co, the electrocatalytic oxidation activity of HMF can be improved by enhancing the electronic structure of reaction sites and acidic sites. This provides a strategy to design highly active catalysts for the green conversion of biomass resources.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Zhiyuan Liu, Shiying Fan, Xinyong Li, Zhaodong Niu, Jing Wang, Chunpeng Bai, Jun Duan, Moses O. Tade, Shaomin Liu
Summary: In this paper, single atom Cu/Ta3N5/CdIn2S4 S-scheme hierarchical polyhedrons (SACu/TN/CIS SHPs) were successfully synthesized and their photocatalytic activity improvement was investigated. The synergistic effect of SACu and S-scheme was confirmed to exhibit excellent charge separation and reduction of energy barriers during ammonium production reaction. The NH3 production rate of SACu/TN/CIS SHPs under light conditions was remarkably 43.6 times higher than that of Ta3N5. This study not only proposes an efficient catalyst under visible light, but also provides an advantageous solution for photocatalytic nitrate reduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Penglei Wang, Shiying Fan, Xinyong Li, Jun Duan, Dongke Zhang
Summary: The impact of the piezoelectric effect on the photocatalytic production of hydrogen peroxide (H2O2) over graphitic carbon nitride (CN) was investigated by modulating its molecular structure. The results showed that the photocatalytic activity of CN, CN-P, CN-OF was enhanced by approximately 1.40, 1.46, and 1.51 times due to the piezoelectric effect, respectively, while CN-CA exhibited a 6-fold decrease in activity. Various techniques were employed to explore the active sites, piezoelectric polarization, and charge separation, revealing that the piezoelectric effect's influence on photocatalytic H2O2 production over CN is determined by multiple factors.
Article
Nanoscience & Nanotechnology
Yu Qin, Shiying Fan, Jinsuo Gao, Moses O. Tade, Shaomin Liu, Xinyong Li
Summary: Cu-doped CoMn2O4 catalysts showed excellent catalytic performance in NO reduction by CO, with Cu0.3Co0.7Mn2O4 achieving 100% NO conversion and 80% N2 selectivity at 250 degrees C. Structural analysis revealed that the introduced Cu replaces some Co in tetrahedral coordination, resulting in a strong synergistic effect between different metals.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Environmental Sciences
Jinyun Luo, Jincheng Mu, Xinyong Li, Baojun Liu
Summary: With the development of metallurgy, chemical manufacturing, and mining, lead pollution in water, especially from battery industries, has become a serious environmental problem. In this study, a highly efficient removal of Pb2+ from wastewater was achieved using MoO2@N-doped hollow carbon sphere (MoO2@ NHCS) anodes in a capacitive deionization (CDI) process. The MoO2@NHCS electrodes exhibited a high adsorption capacity of 202.14 mg/g for Pb2+ in a 50 ppm solution (pH = 6 and U = 1.2 V). Additionally, the electrodes showed selectivity towards Pb2+ even in the presence of Na+ and other heavy metal ions. The selective removal was attributed to the transformation of octahedral MoO2 into tetrahedral [MoO4]2-, which could effectively trap Pb2+ to form PbMoO4.
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)
