Article
Chemistry, Physical
Shouli Bai, Ke Tian, Jonathan Chenhui Meng, Yingying Zhao, Jianhua Sun, Kewei Zhang, Yongjun Feng, Ruixian Luo, Dianqing Li, Aifan Chen
Summary: A ternary photoanode of SnO2/BiVO4/rGO was fabricated and it showed significantly improved photocurrent density and IPCE compared to a BiVO4 photoanode, mainly due to the formation of n-n heterojunctions and decoration of rGO which enhanced the absorption of light and electron transfer efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Physical
Mohsin Ali Marwat, Muhammad Humayun, Muhammad Waqas Afridi, Haibo Zhang, Muhammad Ramzan Abdul Karim, Malik Ashtar, Muhammad Usman, Saad Waqar, Habib Ullah, Chundong Wang, Wei Luo
Summary: This review provides a detailed explanation of the basic mechanism of PEC water splitting using electrocatalysts, and highlights recent advancements in the design, fabrication, and modification of high-efficiency electrocatalysts for energy conversion.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Multidisciplinary Sciences
Shahzad Munir Ansari, M. Zubair Khan, H. Anwar, M. Ikram, Zahid Sarfraz, Naveed Alam, Yaqoob Khan
Summary: Photoelectrochemical (PEC) water splitting technology was used to produce electrodes made of tungsten oxide (WO3) and graphene for efficient water splitting. Characterization techniques were utilized to study the properties and structure of the materials, leading to successful water splitting under artificial sunlight.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Hangmin Guan, Rui Guo, Xianliu Chen, Yuanyuan Wang, Wenyan Zhang, Sang Xiong, Jianyong Feng, Yingfei Hu
Summary: In this study, a new In2O3/CuBi2O4 heterojunction thin film is prepared by doping indium oxide on the surface of CuBi2O4, which improves the photoelectrochemical properties of CuBi2O4.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Lixia Sun, Jianhua Sun, Xi Sun, Shouli Bai, Yingying Zhao, Ruixian Luo, Dianqing Li, Aifan Chen
Summary: A ternary photoanode of ZnO/CdO heterojunction decorated with reduced graphene oxide (rGO) was fabricated by a simple and effective electrochemical deposition and thermal decomposition method. The photoanode demonstrated improved visible light absorption range and photocurrent density compared to pure ZnO and ZnO/CdO photoanodes. The enhancement is attributed to the architecture of semiconductor heterojunctions and the decoration of rGO nanosheets.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Chodipilli Ramesh, Prashant Tyagi, Vishnu Aggarwal, Samanta Pal, Swati Dhua, Manjari Singh, Prabir Pal, Somnath C. Roy, Surinder P. Singh, Senthil Kumar Muthusamy, Sunil Singh Kushvaha
Summary: We studied the photoelectrochemical properties of reduced graphene oxide-coated GaN nanocolumns on flexible niobium foils. The graphene-coated GaN nanocolumns formed a hybrid structure and showed improved charge separation and transport, leading to enhanced photocurrent density compared to pure GaN nanocolumns. The hybrid nitride nanostructure-based PEC device on flexible metal foils demonstrated fast and stable photoresponse in aqueous solution, suggesting its potential for scalable hydrogen production.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lei Ran, Shi Qiu, Panlong Zhai, Zhuwei Li, Junfeng Gao, Xiaomeng Zhang, Bo Zhang, Chen Wang, Licheng Sun, Jungang Hou
Summary: By utilizing a three-dimensional ordered macroporous inverse opal array and an ultrathin carbon-nitride-based layer intercalated technology, significant improvements were achieved in the performance of photoelectrochemical water splitting. The conformal heterojunction photoanode exhibited high current density and incident photon-to-current efficiency under simulated sunlight illumination, showcasing a promising approach for sustainable energy conversion systems.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Physics, Applied
Zheyan Wang, Hao Huang, Gang Li, Xiaohui Yan, Zhichao Yu, Kaiying Wang, Yucheng Wu
Summary: Solar-driven water splitting using perovskite oxides is an efficient process for converting solar energy into chemical energy. Despite the current low conversion efficiency, innovative modification techniques have the potential to improve the performance in the visible light range and enable practical applications in the future.
APPLIED PHYSICS REVIEWS
(2021)
Article
Chemistry, Physical
Ying-Chu Chen, Hsuan-Yu Yeh, Radian Popescu, Dagmar Gerthsen, Yu-Kuei Hsu
Summary: This study presents an alternative approach of growing Cu2O nanowires on Cu foil using a simple wet chemistry method combined with post-thermal treatment to address the issue of copper vacancies. The depletion of copper vacancies results in a space charge layer that efficiently separates the photoexcited charge carriers. The use of ZnO, TiO2, and Pt co-catalyst further enhances charge separation and facilitates electron injection into the electrolyte. This cost-effective and scalable method demonstrates significantly improved photocurrent density compared to the conventional electrodeposition technique.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Nawal Al Abass, Talal F. Qahtan, Mohammed A. Gondal, Almqdad Bubshait
Summary: Graphitic carbon nitride (GCN) has become significant for large-scale photocatalytic water splitting due to its narrow band gap energy and other advantages. By irradiating a GO/GCN dispersion in methanol aqueous solution using a UV laser, a green and low-cost rGO/GCN colloidal nanocomposite was synthesized, exhibiting improved photoelectrochemical efficiency under visible light illumination.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Marwa Mohamed Abouelela, Go Kawamura, Wai Kian Tan, Atsunori Matsuda
Summary: By modifying ANP WO3 with Bi2S3 quantum dots, this study has successfully designed a photoanode with high current density and photoconversion efficiency, providing new insights and methods for the study of photoelectrochemical water splitting.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Chanon Pornrungroj, Virgil Andrei, Erwin Reisner
Summary: Photoelectrochemical reactors can utilize waste heat by integrating thermoelectric modules, achieving unassisted water splitting and enhanced photocurrent. This thermal management approach provides a universal strategy for widespread solar fuel production.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Mariam Barawi, Miguel Gomez-Mendoza, Freddy E. Oropeza, Giulio Gorni, Ignacio J. Villar-Garcia, Sixto Gimenez, Victor A. . de la Pena O'shea, Miguel Garcia-Tecedor
Summary: This study proposes a laser irradiation method to superficially degrade BiVO4 photoelectrodes and enhance their water oxidation reaction performance. Through a combination of advanced characterization techniques, it was found that the reduction process is localized at the surface of the sample, resulting in effective n-type doping and a shift to more favorable energy band positions for water oxidation. Additionally, changes in sample morphology and improved charge extraction contribute to an increase in photocurrent density.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Xingmo Zhang, Rui Tang, Haoyue Sun, Wenjie Yang, Weibin Liang, Feng Li, Rongkun Zheng, Jun Huang
Summary: This study successfully synthesized CsPbBr3 thin-film photocathode catalysts using stepwise optimized interface-engineering strategies and improved their light absorption and charge transfer capability through doping, solution, and coating modifications. The as-fabricated CPB-F-N-Au photocathode demonstrated enhanced photocurrent generation. The research demonstrates the feasibility of directly applying halide perovskite materials into PEC CO2 reduction and proposes effective strategies for tuning device performance.
Article
Engineering, Electrical & Electronic
Furkan Soysal
Summary: This study focuses on using nitrogen-doped reduced graphene oxide as a photoanode coupled with silver nanoparticles for increased electron transfer in photoelectrochemical water splitting. The results show that this nanocomposite has potential for PEC applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Katarzyna Adamska, Szymon Smykala, Sebastian Zielinski, Damian Szymanski, Pawel Stelmachowski, Andrzej Kotarba, Janina Okal, Leszek Kepinski
Summary: A novel bimetallic RuRe/TiO2 nanocatalyst was synthesized and demonstrated to exhibit high catalytic activity and stability in soot oxidation. The performance of the nanocatalyst can be further improved by adjusting the TiO2 support and rhenium content.
Article
Chemistry, Physical
Chang Cheng, Bicheng Zhu, Bei Cheng, Wojciech Macyk, Linxi Wang, Jiaguo Yu
Summary: This study constructed a series of pyrene-alt-dibenzothiophene-S,S-dioxide (P16PySO)/tungsten trioxide (WO3) composites to investigate the mechanism of photocatalytic styrene oxidation under anaerobic and aerobic conditions. The S-scheme charge transfer pathway within P16PySO/WO3 was systematically analyzed. The results revealed that triplet oxygen (O-3(2)) could efficiently trap the energy of triplet excited P16PySO through an energy transfer process and convert to singlet oxygen (O-1(2)), which played an important role in styrene oxidation.
Article
Chemistry, Physical
Xuehua Yu, Di Yu, Lanyi Wang, Yu Ren, Maozhong Chen, Xiaoqiang Fan, Zhen Zhao, Zbigniew Sojka, Andrzej Kotarba, Yuechang Wei, Jian Liu
Summary: In this study, a series of La-Mn-based perovskite catalysts with hierarchical pores on the surface were designed and prepared. The catalysts exhibited abundant ultramacropores, macropores, and mesopores, giving them ultralight properties. They showed high catalytic activity and stability in soot combustion, and one particular catalyst, La0.8Ce0.1Cs0.1MnO3, exhibited the best performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Anna Jakiminska, Kaja Spilarewicz, Wojciech Macyk
Summary: This work aims to revise the photocatalytic activity mechanism of the TiO2/Ag2O system in photocatalytic water splitting with methanol photoreforming. The transformation of Ag2O into AgNPs during photocatalytic water splitting/methanol photoreforming was studied using various techniques. The influence of AgNPs on the optoelectronic properties of TiO2 was analyzed, and the lack of efficient p-n junction between TiO2 and Ag2O was observed. Furthermore, the impact of chemical and structural changes on the production of CO and CO2 from methanol photoreforming was investigated.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
Taymaz Tabari, Marcin Kobielusz, Agnieszka Jarosz-Duda, Dheerendra Singh, Andrzej Kotarba, Artur Blachowski, Jiaguo Yu, Wojciech Macyk
Summary: Understanding the charge transfer mechanism in the straddle heterojunction architecture is crucial for designing active materials. The synthesis and thorough study of BiVO4, La1-xSrxFeO3-delta perovskites, and BiVO4@La1-xSrxFeO3-delta straddle heterojunction architectures addressed this issue. The insertion of Sr2+ ions into A-sites increased the Fe4+ ions at B-sites, strengthening the Fe-O bond and improving electrocatalytic activity. The increased Fermi levels reduced band bending and enhanced the drift direction of photoinduced charges, leading to significantly higher photocurrent in the heterojunction architecture.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Applied
Taymaz Tabari, Przemyslaw Labuz, Anna M. Nowakowska, Marcin Kobielusz, Michal Pacia, Wojciech Macyk
Summary: In this study, the interaction between dye molecules and the TiO2 surface was investigated for their photosensitization properties in photo(electro)catalytic applications. Two groups of organic molecules, catechol and salicylic derivatives, were used for surface modification of titania. The hybrid materials were thoroughly analyzed using various techniques, such as XRD, SEM, UV-Vis, FTIR, Raman, and impedance spectroscopies. The photoactivity was assessed through photoelectrochemical analysis and photocatalytic hydroxylation of terephthalic acid. The study also revealed a significant change in the bond strength of Ti-O due to the chemical bond of the adsorbed dye, as observed from the principal component analysis of Raman spectra. The nature of the dye-titania interaction and its influence on material photoactivity were extensively discussed in this work.
Article
Nanoscience & Nanotechnology
Paulina Chytrosz-Wrobel, Monika Golda-Cepa, Piotr Kubisiak, Waldemar Kulig, Lukasz Cwiklik, Andrzej Kotarba
Summary: The therapeutic function of biomaterial surface can be improved by the controlled release of biologically active molecules. Ultrasonic-assisted formation of nanoparticles with controlled size and morphology can be used for such functionalization. This study reported the synthesis of fluorouracil nanoparticles, a bioactive molecule used in anticancer therapy, and revealed the molecular-level picture of the cavitation bubble interface where the enrichment of fluorouracil molecules takes place. The proposed mechanism can be applied to other biologically relevant molecules, suggesting that the sonochemical method can be used for the controlled formation of their nanoparticles. The results indicate the potential practical implications of tailoring the surface of polymeric biomaterials via the embedment of nanoparticles as drug delivery systems.
ACS APPLIED NANO MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Kamil Urbanek, Kaja Spilarewicz, Jiaguo Yu, Wojciech Macyk
Summary: This work designed an advanced photocatalytic system composed of titanium dioxide (P25) and mSFO (Sn-doped magnetite with Fe-doped cassiterite) for gas phase CO2 reduction. A synthesis route of mSFO composite was proposed, and the obtained material was characterized by various techniques. The mSFO/P25 system showed photocatalytic reduction ability of CO2 to CO, which was confirmed by the use of labeled carbon dioxide. The surface photovoltage and electrochemical measurements supported the S-scheme mechanism.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Engineering, Multidisciplinary
Pawel Wyzga, Taymaz Tabari, Mateusz Trochowski, Wojciech Macyk
Summary: Nanorod-TiO2 electrodes with thin, well-crystallized nanorods were successfully prepared using a hydrothermal method with the addition of sodium chloride. The optimal electrode achieved an applied bias photon to current efficiency (ABPE) of 0.24% in solar seawater splitting, which is one of the highest reported efficiencies for TiO2 nanorods. The efficiency of the electrodes remained stable under varying solar irradiation and showed higher efficiency for seawater splitting compared to water photoelectrolysis.
RESULTS IN ENGINEERING
(2023)
Article
Chemistry, Physical
Kasidid Yaemsunthorn, Wiktoria Adamowicz, Marcin Kobielusz, Wojciech Macyk
Summary: The photocatalytic selective reduction of 3-nitrophenol to 3-aminophenol was studied using titanium dioxide in different compositions. Both intrinsic and extrinsic parameters were found to affect the reaction progress, with intrinsic factors related to the chemical, structural, and electronic properties and extrinsic factors related to the reaction conditions. The analysis revealed that the performance of anatase and rutile materials varied due to differences in interfacial electron transfer, charge recombination, reduction driving force, and methanol photooxidation efficiency. The understanding of these factors could lead to the rational design of efficient and selective photocatalysts.
Article
Chemistry, Physical
Peiyu Hu, Guijie Liang, Bicheng Zhu, Wojciech Macyk, Jiaguo Yu, Feiyan Xu
Summary: Exploring photocatalysts for CO2 conversion is a promising approach for mitigating energy scarcity and environmental pollution. In this study, SnO2/Cs3Bi2Br9 heterojunctions were constructed to enhance CO2 photoreduction. The unique structure enabled efficient separation of photoexcited electron/hole pairs and demonstrated excellent selectivity for CH4 production.
Article
Chemistry, Physical
Tomasz Rzadki, Piotr Legutko, Andrzej Adamski, Andrzej Kotarba, Janusz Trawczynski
Summary: The catalytic performance of vanadia supported on different zirconia-based materials in the combustion of soot was studied. The results showed that zirconia-supported vanadia exhibited the highest activity, with the lowest combustion temperature. The reducibility of surface oxovanadium species was found to be closely related to their catalytic activity, and the thermal treatment conditions and the nature of the zirconia-based support were important for the stability of specific oxovanadium entities on the catalyst surface.
Article
Materials Science, Biomaterials
Paulina Chytrosz-Wrobel, Monika Golda-Cepa, Kamil Drozdz, Jakub Rysz, Piotr Kubisiak, Waldemar Kulig, Monika Brzychczy-Wloch, Lukasz Cwiklik, Andrzej Kotarba
Summary: This study investigates the effect of oxygen plasma treatment on the physicochemical properties of polyurethane surfaces and characterizes the polyurethane-water interfaces in detail through experiments and molecular dynamics simulations.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Biomaterials
M. Golda-Cepa, D. Kumar, M. Bialoruski, S. Lasota, Z. Madeja, W. Piskorz, A. Kotarba
Summary: This study investigates the functionalization of graphenic surfaces by oxygen plasma treatment, introducing surface functional groups in a controlled way to improve wettability and biocompatibility. The results show that the surface decorated with -OH groups becomes hydrophilic and the surface topography remains intact. The correlation between surface oxygen groups, wettability, and biocompatibility is illustrated, providing guidelines for the molecular level-driven design of carbon materials.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
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)
