Review
Chemistry, Multidisciplinary
Chao-Peng Wang, Yu-Xuan Lin, Lei Cui, Jian Zhu, Xian-He Bu
Summary: This review summarizes the recent advances of pristine 2D MOF-based electrocatalysts for water electrolysis, focusing on the detailed analysis of their intrinsic electrocatalytic properties and the important roles of inherent MOF active centers or other in-situ generated active phases. The challenges and development prospects of pristine 2D MOFs for future applications in overall water splitting are also discussed.
Article
Chemistry, Physical
Filipa M. Oliveira, Jan Pastika, Iva Plutnarova, Vlastimil Mazanek, Karol Strutynski, Manuel Melle-Franco, Zdenek Sofer, Rui Gusmao
Summary: CuScP2S6 and AgScP2S6 were synthesized and tested as electrocatalysts for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) in alkaline media. CuScP2S6 exhibited high activity for HER, while AgScP2S6 showed strong activity for ORR. The structural difference between the two materials may play a fundamental role in their catalytic performances.
Review
Biochemistry & Molecular Biology
Chenguang Li, Yupeng Bao, Enzhou Liu, Binran Zhao, Tao Sun
Summary: Water splitting technology is an efficient method to produce hydrogen as an energy carrier. The review focuses on the recent progress of non-precious metal-based materials, particularly Ni (Co, Fe)-based layered double hydroxides (LDH) two-dimensional (2D) materials, for water splitting. It discusses different strategies for modifying LDH materials to enhance electrocatalytic performance and highlights advancements in characterizing LDH's electronic structure and catalytic mechanism.
Review
Chemistry, Multidisciplinary
Yiyue Zhai, Xiangrong Ren, Bolun Wang, Shengzhong (Frank) Liu
Summary: This article provides a comprehensive overview of the research progress in using HEM catalysts for electrochemical water splitting. The article introduces the concept, structure, and design strategies of HEMs, and highlights the importance of computationally aided methods in HEM research. Additionally, the article reviews the applications of HEMs in the field of water electrolysis and provides an outlook on the future prospects of HEMs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Energy & Fuels
Mrunal Bhosale, Sadhasivam Thangarasu, Nagaraj Murugan, Yoong Ahm Kim, Tae-Hwan Oh
Summary: This study presents a new nanostructured morphology of VS2-rGO-Ni ternary system for alkaline oxygen evolution reaction (OER). By optimizing the interfacial interaction between VS2 and rGO and the dispersion of Ni nanoparticles, the electrocatalyst exhibited excellent OER performance and long-term stability. The nanostructured morphology with a well-connected network structure provides a large active surface for interacting with charge species.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Li Shen, Qing Zhang, Juan Luo, Hong Chuan Fu, Xiao Hui Chen, Li Li Wu, Hong Qun Luo, Nian Bing Li
Summary: The study presents a novel design strategy for PBA catalysts that can efficiently achieve high-performance hydrogen and oxygen evolution reactions for water splitting. By assembling hierarchical PBA structures and controlling the temperature and precursor concentration during hydrothermal reactions, catalysts with outstanding catalytic performance, such as PBA@MnO2 and N-FeMnNi materials, were obtained.
APPLIED SURFACE SCIENCE
(2021)
Review
Chemistry, Physical
Yi Tang, Chenhui Yang, Xingtao Xu, Yunqing Kang, Joel Henzie, Wenxiu Que, Yusuke Yamauchi
Summary: This review systematically summarizes the strategies involved in defect engineering in MXenes-based catalysts and provides insights into the mechanisms that govern the catalytic activity of defects. Current challenges and future opportunities in this field are also discussed.
ADVANCED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Usman Ali, Kamran Sohail, Yuqi Liu, Xiaodan Yu, Shuangxi Xing
Summary: The study presents a highly efficient and durable electrocatalyst co-doped with molybdenum and phosphorous on nickel foam, showing enhanced water splitting performance with low overpotential and high current density. The catalyst demonstrates long-term stability for overall water splitting, making it suitable for sustainable energy development.
Article
Chemistry, Physical
Shannon McGee, Andres Fest, Cierra Chandler, Nabila N. Nova, Yu Lei, James Goff, Susan B. Sinnott, Ismaila Dabo, Mauricio Terrones, Lauren D. Zarzar
Summary: In this study, we synthesized multimetal catalysts using a laser synthesis method and found that adding a small amount of chromium to the catalyst can enhance the hydrogen evolution efficiency. This research provides new insights for future electrocatalytic design.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Tingke Rao, Huide Wang, Yu-Jia Zeng, Zhinan Guo, Han Zhang, Wugang Liao
Summary: This study focuses on the preparation and properties of 2D transition metal dichalcogenides (TMDs) and metal phosphorous trichalcogenides (MPTs), highlighting their phase transition characteristics. These materials are considered to have potential value for catalytic applications, especially in water-splitting catalysis and other important areas.
Article
Chemistry, Multidisciplinary
Ben Zhang, Yijuan Zheng, Tian Ma, Chengdong Yang, Yifei Peng, Zhihao Zhou, Mi Zhou, Shuang Li, Yinghan Wang, Chong Cheng
Summary: This paper presents the most pivotal advances in engineering MOF nanoarchitectures for efficient electrochemical water splitting. It summarizes the design of catalytic centers for MOF-based/derived electrocatalysts and discusses breakthroughs in catalytic activities, identification of highly active sites, and fundamental mechanisms. Additionally, it provides comprehensive commentary on current primary challenges and future perspectives in water splitting and its commercialization for hydrogen production.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Zhi Chen, Dongzheng Liu, Yuxiao Gao, Ying Zhao, Weiping Xiao, Guangrui Xu, Tianyi Ma, Zexing Wu, Lei Wang
Summary: The study introduced a novel 2D-3D nanostructure with metal hydroxides and Prussian blue analogus for efficient hydrogen evolution and oxygen evolution. The new material exhibited excellent performance in electrochemical reactions in both deionized water and seawater, showcasing remarkable durability and efficiency for overall water splitting.
SCIENCE CHINA-MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Yanying Liu, Daojin Zhou, Tianyin Deng, Guangli He, Aibing Chen, Xiaoming Sun, Yuhua Yang, Ping Miao
Summary: This review summarizes the research progress of anode OER catalysts for hydrogen production by electrochemical water splitting in recent years, focusing on exploring new and efficient non-noble metal catalytic systems. The categories include transition metal-based compounds, carbonaceous materials, and transition metal-based metal-organic frameworks. The challenges and future development of the OER process of water splitting are also discussed.
Article
Chemistry, Multidisciplinary
Filipa M. Oliveira, Jan Pastika, Laura S. Pires, Zdenek Sofer, Rui Gusmao
Summary: 2D layered materials, specifically metal phosphorus chalcogenides, are being extensively studied for their potential as photoelectrocatalysts in energy conversion applications, particularly in water splitting. The experimentally determined optical bandgaps of these materials vary from 1.5 eV to 3.7 eV. Among them, MnPSe3 shows superior performance in the oxygen evolution reaction region, while exfoliated CoPS3 demonstrates doubled photoelectrochemical activity compared to its bulk counterpart. The substrate and applied potential have significant influences on the photoresponsivity of these materials, with exfoliated CoPS3 achieving a photoresponsivity of up to 0.6 mA W-1 under specific conditions.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Multidisciplinary Sciences
Bing Wang, Weigui Liu, Yecheng Leng, Xiwen Yu, Cheng Wang, Lianghe Hu, Xi Zhu, Congping Wu, Yingfang Yao, Zhigang Zou
Summary: Developing active and cost-effective bifunctional electrocatalysts for overall water splitting is challenging but necessary for renewable energy technologies. In this study, a high-entropy alloy of PtIrCuNiCr was reported as a bifunctional electrocatalyst for overall water splitting, showing low overpotential and superior electrocatalytic activity. The strain effect of the high-entropy alloy on electrocatalysis can be well engineered by adjusting the catalyst radius or configurational entropy. This work provides a systematic strain regulation strategy for designing high-performance high-entropy alloy catalysts for overall water splitting.
Article
Nanoscience & Nanotechnology
Pradip Kumar Roy, Nikolas Antonatos, Tianchun Li, Yu Jing, Jan Luxa, Jalal Azadmanjiri, Petr Marvan, Thomas Heine, Zdenek Sofer
Summary: This study presents a self-powered (photoelectrochemical, PEC), ultrasensitive, and ultrafast photodetector platform made of few-layered palladium-phosphorus-sulfur (PdPS) material. The PEC photodetector exhibits superior responsivity, specific detectivity, and broadband photodetection capability. Additionally, the PdPS material also shows superior sensing ability to organic vapors and photocatalytic activity. These findings pave the way for practical applications in efficient future devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Julian Klein, Zhigang Song, Benjamin Pingault, Florian Dirnberger, Hang Chi, Jonathan B. Curtis, Rami Dana, Rezlind Bushati, Jiamin Quan, Lukas Dekanovsky, Zdenek Sofer, Andrea Alu, Vinod M. Menon, Jagadeesh S. Moodera, Marko Loncar, Prineha Narang, Frances M. Ross
Summary: Atomic-level defects in van der Waals (vdW) materials are essential for quantum technologies and sensing applications. The magnetic semiconductor CrSBr, with a direct gap and rich magnetic phase diagram, exhibits optically active defects that are correlated with the magnetic environment. The narrow defect emission in CrSBr is related to both the bulk magnetic order and an additional defect-induced magnetic order. This study establishes vdW magnets like CrSBr as an exceptional platform for studying defects and creating tailor-made magnetic textures with optical access.
Article
Chemistry, Multidisciplinary
Saibal Bera, Satyajit Das, Manuel Melle-Franco, Aurelio Mateo-Alonso
Summary: Organic nanobarrels, specifically the newly designed trigonal prismatic nanobarrel reported in this study, show promising potential for encapsulating large hosts such as C-60, providing stable solutions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Filipa M. Oliveira, Jan Pastika, Iva Plutnarova, Vlastimil Mazanek, Karol Strutynski, Manuel Melle-Franco, Zdenek Sofer, Rui Gusmao
Summary: CuScP2S6 and AgScP2S6 were synthesized and tested as electrocatalysts for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) in alkaline media. CuScP2S6 exhibited high activity for HER, while AgScP2S6 showed strong activity for ORR. The structural difference between the two materials may play a fundamental role in their catalytic performances.
Article
Engineering, Chemical
Bhupender Pal, Abhilash Karuthedath Parameswaran, Bing Wu, Lukas Dekanovsky, Vlastimil Mazanek, Kalyan Jyoti Sarkar, Rajan Jose, Zdenek Sofer
Summary: Electrochemical capacitors, also known as supercapacitors, are widely studied due to their high power density and cycle life. This study investigates the influence of different anions in ionic liquid electrolytes on the charge storage mechanism and electrochemical stability of capacitors. The CNT//BF4:TFSI//CNT-based device shows superior electrochemical performance compared to other devices.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Polymer Science
Petr Malinsky, Oleksander Romanenko, Vladimir Havranek, Mariapompea Cutroneo, Josef Novak, Eva Stepanovska, Romana Miksova, Petr Marvan, Vlastimil Mazanek, Zdenek Sofer, Anna Mackova
Summary: In this study, flexible micro-scale humidity sensors were directly fabricated in graphene oxide (GO) and polyimide (PI) using ion beam writing without further modifications. The structural changes in the irradiated materials were characterized using various spectroscopic techniques. The testing results showed that the sensors had good sensitivity and long-term stability, indicating their potential for widespread applications in a wide range of humidity conditions.
Article
Chemistry, Physical
Lukas Dekanovsky, Hai Huang, Sana Akir, Yulong Ying, Zdenek Sofer, Bahareh Khezri
Summary: Light-driven magnetic MXene-based microrobots (MXeBOTs) have been developed for efficient removal and degradation of bisphenol A (BPA). The MXeBOTs utilize embedded Fe2O3 nanoparticles (NPs) for magnetic propulsion and grafted bismuth NPs as cocatalysts. The stability and reusability of MXeBOTs are studied in relation to BPA concentration and chemical composition of the swimming environment.
Article
Nanoscience & Nanotechnology
Jan Luxa, Filipa M. Oliveira, Cameron W. Jellet, Rui Gusmao, Zdenek Sofer
Summary: The development of electromagnetic interference (EMI) shielding materials is crucial due to the increasing concern over electromagnetic radiation and its potential health risks. In this study, a composite material based on metallic niobium diselenide (NbSe2) and single-walled carbon nanotubes (CNTs) was reported for EMI shielding purposes. The composite exhibited excellent EMI shielding effectiveness (SE) at 12.4 GHz, outperforming pure NbSe2 and pure CNTs alone. This superior performance was attributed to the synergistic effect between NbSe2 and CNTs, forming a 3D network with enhanced conductivity and abundant sites for electromagnetic wave attenuation. This study is the first to investigate the EMI shielding performance of a transition metal dichalcogenide (TMD) other than MoS2-based material.
ACS APPLIED NANO MATERIALS
(2023)
Article
Instruments & Instrumentation
J. Novak, E. Stepanovska, P. Malinsky, V. Mazanek, Z. Sofer, U. Kentsch, A. Mackova
Summary: This study focused on ion beam modification and doping of graphene oxide (GO), polylactic acid (PLLA), and polyimide (PI) using low-energy copper ions in order to investigate their catalytic, sensory, and electrical properties. The samples were implanted with 20 keV copper ions at three different fluences. The elemental composition, structural changes, surface morphology, electrical properties, sensory properties, and photocatalytic properties were analyzed using various techniques such as Raman spectroscopy, FTIR, XPS, RBS, ERDA, AFM, sheet resistivity measurement, and Rhodamine-B disintegration. Ion beam implantation successfully functionalized the samples, with the electrical conductivity increasing with higher fluence. Both GO and PI demonstrated effective sensory and photocatalytic performance, with the best results achieved at a fluence of 3.75 x 1012 cm-2.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2023)
Article
Chemistry, Multidisciplinary
Rajeev K. Dubey, Mauro Marongiu, Shuai Fu, Guanzhao Wen, Mischa Bonn, Hai I. Wang, Manuel Melle-Franco, Aurelio Mateo-Alonso
Summary: This study presents an accelerated iterative approach for the synthesis of length-controlled, ultralong, atomically precise graphene nanoribbons (GNRs). The method allows for the exploration of the effects of GNR length on their properties, and enables the purification and characterization of these GNRs.
Editorial Material
Chemistry, Physical
Zdenek Sofer, Xuehang Wang, Minghao Yu
Article
Chemistry, Physical
Abhilash Karuthedath Parameswaran, Lukas Dekanovsky, Vlastimil Mazanek, Sivaraj Pazhaniswamy, Zdenek Sofer
Summary: In this study, Ni was incorporated into Li2MnO3 cathode materials and assimilated onto 3D vertical CNT-wrapped carbon fibrils. This resulted in high capacity and remarkable rate capabilities while maintaining the structural integrity of the materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Sana Akir, Jalal Azadmanjiri, Nikolas Antonatos, Lukas Dekanovsky, Pradip Kumar Roy, Vlastimil Mazanek, Roussin Lontio Fomekong, Jakub Regner, Zdenek Sofer
Summary: This study confirms the potential application of two-dimensional vanadium carbide (V2C) as an electrocatalyst for hydrogen evolution reaction (HER) and nitrogen reduction reaction (NRR) through experimental investigations. Two different nanostructures (2D/0D and 2D/2D) of V2C-based materials were synthesized and evaluated. The 2D/2D V2C/BVO structure demonstrated improved HER activity, while the 2D/0D V2C/Bi exhibited high efficiency for NRR.