Article
Chemistry, Analytical
Chunyan Li, Pil Gyu Choi, Kyusung Kim, Yoshitake Masuda
Summary: This paper discusses the direct fabrication of ultrathin Ni(OH)2 nanosheets on substrates via a solvothermal process. The thickness and morphology of the nanosheets can be controlled by manipulating the ethanol content in the solvent. The 75% ethanol-based NiO gas sensor demonstrates ultrahigh acetone sensitivity, ultralow detection limit, good stability, and superior acetone selectivity. Low cost NiO nanosheets fabricated via a simple process could be considered as potential candidates for commercial acetone sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Electrochemistry
Sandeep Sheokand, Prashant Kumar, Shakra Jabeen, Kawaljeet Singh Samra
Summary: In this study, the effect of reaction temperature and urea concentration on the electrochemical performance of NiO nanoparticles is investigated through the synthesis of NiO nanosheets using a hydrothermal method. The structural and morphological characterizations of the synthesized nanoparticles are analyzed and the electrochemical performance of the developed electrodes is evaluated. The binder-free electrode prepared using these NiO nanosheets displays excellent specific capacity and cyclic stability, demonstrating promising potential for energy storage applications.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Feng-Renn Juang, Chia-Hsu Hsieh, I-Yu Huang, Wei-Yi Wang, Wei-Bo Lin, Ling Yen
Summary: This study comprehensively investigates and demonstrates the sensing characteristics of resistor-type ammonia gas sensors with different architectures of porous NiO nanosheets. The morphology of the NiO nanostructure can be varied by adjusting the amount of nickel nitrate hexahydrate during synthesis. The presence of holes on the NiO nanosheets increases the material's surface area and enhances the sensor's sensing performances. Among the different sensors, the dispersed distribution exhibits a higher sensing response ratio and faster response time to low concentration ammonia gas, making it suitable for accurate ammonia sensing applications.
SOLID-STATE ELECTRONICS
(2022)
Article
Electrochemistry
Shuli Wang, Peixuan Xu, Jingqi Tian, Zong Liu, Ligang Feng
Summary: This study successfully demonstrated phase structure tuning of graphene supported Ni-NiO nanoparticles system to enhance urea oxidation performance. By optimizing the annealing temperature, the sample obtained at 450 degrees Celsius exhibited the highest catalytic activity and stability.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Parisa Talebi, Harishchandra Singh, Ekta Rani, Marko Huttula, Wei Cao
Summary: Ni@NiO/NiCO3 core-shell nanostructures were investigated for photocatalytic hydrogen generation without co-catalyst, showing enhanced efficiency after vacuum annealing. The amorphous NiCO3 in the shell was suggested to play a vital role in enhancing surface plasmon resonance and boosting hydrogen evolution reaction activity.
Article
Environmental Sciences
Lalitha Gnanasekaran, Devaraj Manoj, Saravanan Rajendran, F. Gracia, A. A. Jalil, Wei-Hsin Chen, Matias Soto-Moscoso, M. A. Gracia-Pinilla
Summary: This study focuses on the treatment of industrial effluent, specifically the usage of NiO photocatalysts. Two types of NiO (green and black) were synthesized using different methods and characterized. The black NiO with Ni2O3 showed higher degradation efficiency for 4-chlorophenol under visible light compared to green NiO.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Yanli Tan, Qun Li, Zhou Lu, Chunxiao Yang, Weiwei Qian, Fangyong Yu
Summary: Biomass materials have been gaining attention in functional composites due to their unique microstructure, renewability, and electrochemical performance. Porous NiO/C composites, synthesized using cellulose-rich natural cotton, exhibited a high specific capacity as a lithium-ion battery anode. The interconnected nanostructure of NiO/C composites with carbon matrix enhances electrolyte diffusion and provides additional routes for ion diffusion, leading to excellent lithium storage performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yu Zhang, Weiwei Yu, Shuo Cao, Zhe Sun, Xiaowa Nie, Yuefeng Liu, Zhongkui Zhao
Summary: The study achieved efficient conversion of quinolines to tetrahydroquinolines through photocatalytic means using hierarchical NiO/In2O3-CdS microspheres under visible light irradiation. Experimental and theoretical results indicated that NiO served as the active sites for the reaction, showing superior adsorption and activation of benzyl alcohol compared to metallic Ni.
Article
Chemistry, Multidisciplinary
N. Srinivasa, Jack P. Hughes, Prashanth S. Adarakatti, C. Manjunatha, Samuel J. Rowley-Neale, S. Ashoka, Craig E. Banks
Summary: The facile synthesis of Ni/NiO nanocomposites was achieved through solution combustion methodology with controlled composition of metallic Ni within NiO by varying annealing time. The optimal Ni/NiO nanocomposite exhibited significantly enhanced electrocatalytic activity for the oxygen evolution reaction, showing promising stability and potential for mass production of stable electrocatalysts for commercial applications.
Article
Materials Science, Multidisciplinary
M. Jayachandran, S. Kishore Babu, T. Maiyalagan, M. R. Kannan, R. Goutham Kumar, Y. Sheeba Sherlin, T. Vijayakumar
Summary: This study discusses the electrochemical performance of porous Nickel oxide nanocrystals synthesized by the hydrothermal method, analyzing their structure and morphology through various techniques. The porous Nickel oxide electrode shows high specific capacitance in different aqueous electrolytes, with exceptional performance in 1M Na2SO4 solution. Additionally, the electrode exhibits good cyclic stability with 91% capacity retention over 2000 cycles, highlighting its potential for supercapacitor applications.
Article
Spectroscopy
Anoop Sunny, Karthikeyan Balasubramanian
Summary: In this study, the phonon, magnon, and magnetic properties of copper-doped nanocrystalline nickel(II) oxide were extensively studied using room-temperature Raman spectroscopy. The observed deviations in the wavenumbers of phonon modes from theoretical predictions were attributed to the phonon-magnon interaction. The variations in magnon excitations with the concentration of Cu doping were investigated and the suppression and blue shifting of the two-magnon excitations indicated changes in the magnetic behavior. The modifications in the antiferromagnetic nature and the formation of multiphase magnetic properties were investigated using a vibrating sample magnetometer.
JOURNAL OF RAMAN SPECTROSCOPY
(2022)
Article
Energy & Fuels
Shri Hari S. Pai, Ananta Sasmal, Arpan Kumar Nayak, HyukSu Han
Summary: There is a high demand for efficient energy storage systems, and in this study, NiO/g-C3N4 nanocomposites were synthesized using a solvothermal approach followed by heat treatment for supercapacitor applications. Varying the molar ratio of g-C3N4 resulted in different nanostructures with optimal specific capacitance. The electrochemical behavior of the nanocomposites was tested under different electrolytes, and the NO-4 (1 : 2) electrode material showed the highest specific capacitance. The investigation also revealed the charge storage contribution of capacitive and diffusive parts, contributing to the high specific capacitance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
V. Madhav Kumar, S. R. Polaki, R. Krishnan, R. M. Sarguna, Tom Mathews
Summary: A method for fabricating binder-free supercapacitor electrodes of NiO petals templated by vertical graphene nanosheets (VGN) was reported in this study. The morphology, microstructure, and stoichiometry of the NiO petals were greatly influenced by the background O2 pressure and deposition temperature. The VGN templated growth facilitated NiO with high surface area, resulting in a approximately 2.5 times higher areal capacitance compared to NiO directly grown on carbon paper substrate without VGN.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yulia M. T. A. Putri, Thomas W. Chamberlain, Volkan Degirmenci, Jarnuzi Gunlazuardi, Yuni K. Krisnandi, Richard I. Walton, Tribidasari A. Ivandini
Summary: This study proposes NiCo-MOF-74 synthesized directly on the surface of porous NiO film as an efficient electrocatalyst for the anode in direct urea fuel cells. The nickel-to-cobalt ratio of 4:1 exhibits the best catalytic activity towards urea oxidation, resulting in significant current enhancement compared to other electrodes. At optimized conditions, a current density of approximately 110 mA cm-2 and a maximum power density of 4131 mu W cm-2 can be achieved in an electrolyte solution of 3.0 M KOH and 1.0 M urea. The increased active surface area of the nickel-based anodes contributes to an abundance of active sites for urea oxidation, leading to excellent stability and reproducibility over 15 hours of application in a direct urea fuel cell.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
S. Prabhavathy, D. Arivuoli
Summary: This study focused on the hydrothermal synthesis of highly stable NiO and V-NiO nanoparticles, and characterized their structural, morphological, and optical properties. The findings indicate that V-NiO can enhance the photocatalytic activity of NiO and possess good cyclic stability over repeated usage.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Hao Jiang, Hao Chen, Yutuo Fu, Chongshen Guo
Summary: To fully utilize solar energy, it is important to utilize the near infrared (NIR) light for related applications. In this study, a multifunctional SnFe2O4 photocatalyst was designed to achieve this goal. The SnFe2O4 exhibited full-solar-range responsiveness and could degrade methylene blue under visible and NIR irradiation. Additionally, the NIR-triggered photothermal effect of SnFe2O4 improved sewage purification. Furthermore, the unique piezoelectric property of SnFe2O4 enabled piezocatalytic activity and enhanced NIR-driven photocatalysis. The possible mechanism was investigated through various tests and calculations, providing a theoretical basis for extending the use of solar spectrum and constructing multifunctional photocatalysis and piezocatalysis systems.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Hayato Sakai, Shigeto Hirai, Masanori Nagao, Nataly Carolina Rosero-Navarro, Akira Miura, Kiyoharu Tadanaga
Summary: Novel manganese nitrides doped with rare-earth elements (Y, Er, Tm, Yb) were synthesized and evaluated for their oxygen reduction reaction (ORR) catalytic activities in an alkaline solution. The distribution of manganese and ytterbium on a nanometer scale was observed, and the nitride catalysts with about 1% Yb/Mn ratio exhibited enhanced ORR activity and high affinity toward OH-. Manganese nitrides containing small amounts of various rare-earth elements (Y, Er, Gd, Tm) were also synthesized, leading to improved catalytic activities. This work presents new strategies for synthesizing metal nitrides with rare-earth elements and enhancing the ORR catalytic activities of metal nitrides.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Multidisciplinary
Fysol Ibna Abbas, Kazuhisa Hoshi, Yuki Nakahira, Miku Yoshida, Aichi Yamashita, Hiroaki Ito, Akira Miura, Chikako Moriyoshi, Chul-Ho Lee, Yoshikazu Mizuguchi
Summary: The superconducting properties and structural parameters of LaO0.5F0.5BiS2-xSex, a BiCh2-based layered superconductor (Ch: S, Se), were investigated. Increasing the Se concentration led to an increase in the superconducting transition temperature (Tc) and the induction of bulk superconductivity. A larger Gruneisen parameter (gamma G) was observed when x>=0.4, indicating improved superconducting properties. The study also found a positive correlation between gamma G and Tc in Se-poor samples of REO0.5F0.5BiS2 (RE = Pr, Nd). Additionally, specific heat analyses revealed the existence of a low-energy optical phonon mode in LaO0.5F0.5BiS2-xSex.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2023)
Article
Engineering, Electrical & Electronic
Naoto Nakamura, Yosuke Goto, Yuki Nakahira, Akira Miura, Chikako Moriyoshi, Chul-Ho Lee, Hidetomo Usui, Yoshikazu Mizuguchi
Summary: We demonstrate the thermoelectric transport properties of the Zintl arsenide EuCuAs. The crystal structure of EuCuAs consists of a covalently-bonded honeycomb-type CuAs network sandwiched by nearly divalent Eu ions. Undoped EuCuAs exhibits a relatively high power factor but a limited dimensionless figure-of-merit due to high lattice thermal conductivity. First-principles calculations predict that heavy hole-doped EuCuAs can exhibit axis-dependent conduction polarity, enabling the construction of transverse thermoelectric devices.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Energy & Fuels
Nonoko Suzuki, Yibei Xue, Takuya Hasegawa, Shu Yin
Summary: Element doping is an effective method to customize the thermochromic properties of vanadium dioxide (VO2) for smart windows. In this study, Mo-doped and F/Mo co-doped VO2 nanoparticles were synthesized and exhibited excellent thermochromic properties including reduced phase transition temperature (Tc = 47.4°C), enhanced luminous transmittance (Tlum = 59.7%), and high solar energy modulation (Delta Tsol = 13.7%).
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Chemistry, Physical
Bin Li, Hongqiang Chen, Jisheng Feng, Qiao Ma, Junhong Chen, Bo Ren, Shu Yin, Peng Jiang
Summary: The hydration reaction has a significant impact on the quality and performance of MgO-based products, and the problem lies in the surface hydration of MgO. By studying the adsorption and reaction of water molecules on the surface of MgO, the root cause of the problem can be understood.
Article
Chemistry, Multidisciplinary
Takahiro Sawahara, Ryo Matsumoto, Yuki Nakahira, Hidetomo Usui, Noriyuki Kataoka, Ryusei Saitou, Takanori Wakita, Takayoshi Yokoya, Aichi Yamashita, Yosuke Goto, Yoshihiko Takano, Akira Miura, Yoshikazu Mizuguchi
Summary: Depending on thermal and pressure conditions, AgInS2 exhibits various crystal structures. In this study, trigonal AgInS2 was synthesized and found to be a semiconductor. The crystal structure was investigated through synchrotron powder X-ray diffraction and band calculation. The electrical resistance measurements under high pressure showed that the semiconducting behavior of AgInS2 was suppressed, but no metallic behavior was observed.
Article
Electrochemistry
Ryosuke Nakazato, Keeko Matsumoto, Noboru Yamaguchi, Margherita Cavallo, Valentina Crocella, Francesca Bonino, Matthias Quintelier, Joke Hadermann, Nataly Carolina Rosero-Navarro, Akira Miura, Kiyoharu Tadanaga
Summary: Zn-Al layered double hydroxides (LDHs) have been found to have activity in electrochemical reduction of carbon dioxide (CO2ER) to form carbon monoxide (CO). The interaction of CO2 with Zn-Al LDH showed different carbonates evolution compared to other LDHs, indicating a different electrocatalytic activity. In gas-phase CO2ER, Zn-Al LDH exhibited a higher partial current density for CO formation compared to liquid-phase CO2ER.
Article
Materials Science, Multidisciplinary
Na An, Yan Gao, Ying Shi, Xingxing Du, Jianing Cheng, Shuanglong Tang, Pengfei Liu, Huike Yang, Chongshen Guo
Summary: A phototherapy modality using polyethylene glycol functionalized Ni2P NPs was developed for tumor ablation and immunogenic cell death, which can eliminate primary, distal, and metastatic tumors. The Ni2P@PEG NPs also showed excellent magnetic resonance imaging properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Chinatsu Yoshizawa, Takuya Hasegawa, Ayahisa Okawa, Shu Yin
Summary: WS2-WO3 particles were successfully synthesized by solvothermal liquid-phase oxidation process under various conditions, and their gas sensing performance was evaluated at room temperature. The sample synthesized in ethanol-rich solvent at 210 degrees C exhibited excellent gas sensing performance. It is suggested that the present liquid phase oxidation process effectively controls the crystalline phase and particle morphology, which are crucial for improving gas sensing performance.
FUNCTIONAL MATERIALS LETTERS
(2023)
Review
Engineering, Chemical
Shu Yin, Takuya Hasegawa
Summary: The functionality of inorganic materials depends on their chemical composition, morphology, particle size, and crystal facet, which are influenced by the synthesis process. Precise control of the synthesis process can lead to the discovery of new functionality and improvement of materials. Solution processes allow for precise control of morphology and particle size, and are strongly related to the dissolution reprecipitation mechanism, enabling strict control of material composition and formation of highly crystalline particles. This review focuses on the role of solvents in the solution process, their effect on particle size and morphology of transition metal oxides, related functional improvements, direct formation of functional thin films, and morphology control by non-oxide materials through topotactic reactions.
KONA POWDER AND PARTICLE JOURNAL
(2023)
Article
Chemistry, Applied
Hao Chen, Guangze Pan, Mei Yan, Fang Wang, Yadong Wu, Chongshen Guo
Summary: To address the limitations of solar-driven interfacial evaporation technology, researchers have designed an amphiphilic membrane that enhances photothermal conversion efficiency, reduces energy loss, and exhibits excellent resistance to salt deposition. The membrane demonstrates stable evaporation performance, especially in the treatment of high concentration salt solutions.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shigeto Hirai, Shunsuke Yagi, He-Chan Oh, Yoshiki Sato, Wei Liu, En-Pei Liu, Wei-Tin Chen, Akira Miura, Masanori Nagao, Tomoya Ohno, Takeshi Matsuda
Summary: This study successfully developed an OER catalyst with high intrinsic activity and stability under acidic conditions by preventing lattice collapse after repeated OER cycling. The substitution of Ir-sites with Mn in BaIrO3 and OER cycling led to a remarkable activity enhancement by a factor of 28 and an overall improvement in stability.
Review
Chemistry, Multidisciplinary
Yibei Xue, Shu Yin
Summary: Smart materials, especially element-doped vanadium dioxide (VO2), have great potential due to their autonomous response behavior and modifiable properties. Element doping can tailor the performance of VO2, making it more suitable for practical applications.
Article
Chemistry, Multidisciplinary
Bingrong Guo, Bin Liu, Chaoli Wang, Yuhua Wang, Shu Yin, Weihua Han
Summary: The recombination of photocarriers is a crucial factor affecting the performance of photocatalysts. The design of heterojunction photocatalysts can effectively inhibit the recombination by enhancing photocarrier separation and transport. In this study, a Z-scheme WS2/In2S3 photocatalyst with a bi-layered sheet-like structure was synthesized. The unique architecture of this photocatalyst reduced the charge transfer distance and provided more surface area, promoting the photocatalytic reaction. The Z-scheme structure effectively separated and retained the strong redox capability of the photocarriers, resulting in remarkable photocatalytic activity for H-2 generation and tetracycline hydrochloride degradation. The Z-scheme WS2/In2S3 composite showed the highest H-2 generation rate of 592.9 mu mol g(-1) h(-1) and the best degradation efficiency of 90% within 60 min. The bi-layered Z-scheme photocatalyst also demonstrated excellent stability and recyclability.
NEW JOURNAL OF CHEMISTRY
(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)
