Article
Chemistry, Physical
Antony Bazan-Aguilar, Gonzalo Garcia, Elena Pastor, Jose Luis Rodriguez, Angelica Maria Baena-Moncada
Summary: Green hydrogen is a valuable energy source for addressing the environmental impact of fossil fuel consumption. Large-scale production of green hydrogen can be achieved using anion exchange membrane water electrolyzer (AEMWE) with highly electroactive and low-cost catalysts for hydrogen evolution reaction (HER). A novel catalyst was developed by an anhydrous etching procedure of commercial and low-cost Ni foam electrodes, which showed promising catalytic performance for HER with an onset potential close to the thermodynamic value. Further investigations using differential electrochemical mass spectrometry (DEMS) and Raman spectroelectrochemistry (Raman-SEC) provided insights into the reaction kinetics and mechanism of the HER at catalysts in alkaline medium.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Multidisciplinary Sciences
Feng Shao, Jun Kit Wong, Qi Hang Low, Marcella Iannuzzi, Jingguo Li, Jinggang Lan
Summary: This study investigates the mechanism of CO reduction reaction on Cu single-crystal surfaces using in situ spectroscopy and ab initio molecular dynamics calculations. The intermediate species and Cu-O-ad/Cu-OHad species during CO adsorption, dimerization, oxidation, and hydrogenation were identified. The accurate vibrational frequencies of these intermediates were determined using AIMD simulations. These findings provide important insights into the CO(2)RR process and offer a spectroscopic tool for future mechanistic studies.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Nanoscience & Nanotechnology
Prithwish Biswas, Feiyu Xu, Pankaj Ghildiyal, Michael R. Zachariah
Summary: This study demonstrates that coating aluminum nanoparticles with a metal ammine complex can lower the reaction initiation temperature and enhance the reaction rate. The ignition occurs due to a condensed phase reaction between the metal ammine complex and copper oxide. The rapid heat release induces strain on the aluminum core, resulting in a nonuniform thickness of the aluminum oxide shell, which enables rapid mass transfer and enhances reactivity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Daying Guo, Zhixin Wan, Guoyong Fang, Mengqi Zhu, Bin Xi
Summary: A highly active and durable electrocatalyst for the hydrogen evolution reaction (HER) has been reported. The catalyst demonstrates excellent performance in alkaline and neutral mediums. A ternary composite material with a tandem interface strategy is used, which allows for superior HER performance through the modulation of heterointerface and intermediates electronic structure.
Article
Chemistry, Physical
Jiajun Wang, Guangliang Chen, Yongzhe Zhang, Zhuoyi Chen, Bin He, Tongtong Li, Kostya Ken Ostrikov
Summary: This study develops a carambola-like In-Ni3Se4-CoSe2 electrocatalyst on a low-temperature plasma treated Ni-Co foam to address the issue of insufficient activity and stability of electrocatalysts under industry-relevant conditions. Electrochemical results show that the overpotential of In-Ni3Se4-CoSe2 for transferring a current density of 10 mA cm-2 (j10) is only 30 mV, comparable to the benchmark 20% Pt/C catalyst. The optimized electrode material stimulated with 300 mV exhibits intrinsic activity 5 times higher than that of Ni3Se4-CoSe2/PNCF catalyst due to the creation of rich active sites and accelerated electron transfer caused by indium doping. Long-term stable operation over 50 h in simulated industrial working environments and in-situ Raman spectroscopy confirm the excellent stability and durability of the developed electrocatalyst in alkaline media.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Abhinaba Das, Bapuji Mohapatra, Vipin Kamboj, Chinmoy Ranjan
Summary: By adding Cr, the electrochemical oxygen evolution activity of Au-supported cobalt oxide catalyst was significantly enhanced, leading to a decrease in onset potential. In-situ studies revealed that Cr stabilized lower oxidation states of Co, and the OER onset potential was strongly correlated with the appearance of the Au-OOH peak.
Article
Nanoscience & Nanotechnology
Fei He, Nannan Xia, Yan Zheng, Yixin Zhang, Huailin Fan, Delong Ma, Qianhe Liu, Xun Hu
Summary: By coupling impregnation and electrochemical activation, an efficient, stable, and robust Ru-based electrocatalyst with ultrasmall and well-distributed Ru nanoparticles was developed, showing superior performance compared to Pt-based and Ru-based catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Inorganic & Nuclear
Marcelo Avena
Summary: The reactivity of the metal oxide-water interface and that of the mineral-water interface can be understood from the viewpoint of coordination chemistry. Ligand substitution reactions play a key role for metal complexes in both solution and at the surface, leading to the formation of adsorbed species that can be identified by surface spectroscopic techniques. Surface reactions, such as proton and anion/cation adsorption-desorption, can be easily explained in this context, showing that these processes occur through dissociative, associative, or interchange mechanisms similar to those in solution.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Sergio Tosoni
Summary: Mn3O4 Hausmannite thin films supported on (Cu, Ag, Au) coinage metals were investigated using DFT calculations. The interface between the films and metal support exhibited different lattice and ionic match, leading to different interactions. The films on Cu (111) and Au (111) weakly adhered due to unfavorable structural match, while strong adhesion was observed on Ag(100) with commensurate lattice and epitaxial growth. A negative charge flow from the support to the film was reported, resulting in the reduction of the film and an increase in magnetic moments of metal ions in the octahedral sublattice. The ferrimagnetic ordering varied in supported films exposing different crystal faces.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Kang Hee Cho, Sunghak Park, Hongmin Seo, Seungwoo Choi, Moo Young Lee, Changwan Ko, Ki Tae Nam
Summary: This study identified water oxidation intermediates on the surface of Mn3O4 nanoparticles using in situ Raman spectroscopy at neutral pH, providing insight into the design of systems for observing reaction intermediates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Caiwu Liang, Weisheng Pan, Peichao Zou, Peng Liu, Kangwei Liu, Guangyao Zhao, Hong Jin Fan, Cheng Yang
Summary: By organizing nanoscale electrocatalysts into a macroscopic substrate-free metallic alloy aerogel, this study achieves long-term stability and high activity at industrial-level current densities. The alloy aerogel exhibits high electrical conductivity, structural stability, and excellent mechanical stability.
Article
Chemistry, Physical
Athira Krishnan, R. Ajay, J. Anakha, U. S. Krishnanunni Namboothiri
Summary: This article focuses on the effects of various forms of defects in transition metal oxides on catalytic activity, including point defects, line defects, and plane defects. The defect engineering strategies and mechanisms for enhancing catalyst activity are discussed. The core science behind electrocatalytic OER, expressions for evaluating catalyst activity measures, and strategies for improving the efficiency of transition metal oxides towards OER are also examined. The challenges associated with defect engineering and the most advanced solutions identified from the literature are consolidated.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Feng Hu, Deshuang Yu, Min Ye, Hui Wang, Yanan Hao, Luqi Wang, Linlin Li, Xiaopeng Han, Shengjie Peng
Summary: This study reports a simple method to synthesize efficient bifunctional electrocatalysts that exhibit high catalytic activity and stability in alkaline oxygen/hydrogen evolution reactions. The catalysts have been designed and fabricated with an optimized structure and nanoporous morphology, resulting in low overpotential and high current density.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zhi Gao, Yulian Lai, Lele Gong, Lipeng Zhang, Shibo Xi, Jian Sun, Linjuan Zhang, Feng Luo
Summary: By utilizing a new metal-organic framework (MOF) supported semirigid single-metal-site catalyst, successful catalysis of the acidic oxygen evolution reaction (OER) was achieved. The catalyst exhibited excellent activity and stability, benefitting from its rigid framework, chelating coordination, and accessible open metal site. Theoretical calculations and kinetic analysis revealed the unique semirigid character of the catalyst, which differs from traditional rigid catalysts.
Article
Chemistry, Physical
Zhi Gao, Yulian Lai, Lele Gong, Lipeng Zhang, Shibo Xi, Jian Sun, Linjuan Zhang, Feng Luo
Summary: In this study, single-metal-site catalysts based on ThMOF were successfully prepared, exhibiting outstanding acidic OER activity and high electrocatalytic stability. The unique semirigid character of the single-metal-site catalysts was revealed by theoretical calculations and kinetic analysis.
Article
Chemistry, Multidisciplinary
Barbel Tengen, Timo Winkelmann, Niklas Ortlieb, Verena Perner, Gauthier Studer, Martin Winter, Birgit Esser, Anna Fischer, Peter Bieker
Summary: Organic batteries are considered as an environmentally friendly alternative to lithium-ion batteries, and one well-established polymer is PVMPT. The dissolution behavior of oxidized PVMPT is influenced by different conductive carbon additives, with Ketjenblack EC-300J and EC-600J showing better immobilization. The dense packing of carbon particles in the electrode is crucial for stable immobilization of PVMPT and maintaining its long-term cycling performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Vladimir Pelmenschikov, Delfim Ferreira, Sofia S. Venceslau, Peter Hildebrandt, Ines A. . C. Pereira, Smilja Todorovic, Smilja Todorovic
Summary: In this study, resonance Raman spectroscopy and density functional theory calculations were used to investigate the structural, electronic, and vibrational properties of the noncubane [4Fe-4S] cluster in heterodisulfide reductase (HdrB). Homology modeling was employed to predict the protein environment of the neighboring clusters in DvHdrB. The results showed that the oxidized [4Fe-4S](3+) cluster adopts a closed conformation in the absence of substrate, but transitions to an open structure upon substrate coordination, accompanied by a ligand switch. This study provides valuable insights for future research on enzymes with this unconventional cofactor.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Jasmin-Clara Buerger, Serin Lee, Jan Buettner, Sebastian Gutsch, Maximilian Kolhep, Anna Fischer, Frances M. M. Ross, Margit Zacharias
Summary: The SnO2/ZnO core/shell nanowires, as anode materials in LIBs, were studied using electrochemical analysis and electron microscopy to understand the relationship between structural changes and battery performance. The combination of SnO2 and ZnO showed higher storage capacities, but cycling caused significant structural changes and loss of mechanical integrity. This study provides insights into the stability limitations of SnO2/ZnO heterostructure LIB anodes and offers guidance for the design of next-generation anode materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Paul Ebensperger, Mariia Zmyslia, Philipp Lohner, Judith Braunreuther, Benedikt Deuringer, Anita Becherer, Regine Suess, Anna Fischer, Claudia Jessen-Trefzer
Summary: In this study, an artificial protein cage was created to house a dual-metal-tagged guest protein. The guest protein, consisting of a fusion protein of HaloTag and monomeric rhizavidin, catalyzed a linear, two-step sequential cascade reaction. The protein capsid encapsulated a ruthenium-catalyzed deprotection reaction followed by a gold-catalyzed hydroamination reaction, resulting in the production of indoles and phenanthridines with up to 66% overall yield in aqueous solutions. Additionally, the encapsulation of the guest protein stabilized the metal catalysts against deactivation by air, proteins, and cell lysate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Florian Doettinger, Martin Obermeier, Volkan Caliskanyuerek, Lars E. Burmeister, Christian Kleeberg, Michael Karnahl, Matthias Schwalbe, Stefanie Tschierlei
Summary: In this study, the structure-property relationship of heteroleptic Cu-I photosensitizers was investigated in detail. Two structurally closely related complexes were compared, and it was found that even small changes in the molecular structure can significantly affect their photophysical properties. The reasons for the superior photophysical properties of Cu2 were elucidated through a combination of various experimental and computational techniques. Furthermore, both complexes were tested for their activity in photocatalytic water splitting and CO2 reduction, and Cu2 outperformed Cu1, as well as the benchmark system and the noble-metal-based complex [Ir(dFppy)(3)].
Article
Chemistry, Inorganic & Nuclear
Vishal Budhija, Phebe H. H. van Langevelde, Konstantin B. B. Krause, Beatrice Cula, D. G. H. Hetterscheid, Matthias Schwalbe
Summary: This study presents the synthesis, characterization, and reactivity studies of a hetero-dicopper complex, specifically its behavior towards oxygen reduction. The complex consists of a bischlorido copper(II) trishistidine-type coordination unit positioned above a copper porphyrin unit. Surprisingly, despite the close distance between the two coordination fragments secured by a rigid xanthene backbone, the dinuclear complex is not active towards oxygen reduction unlike its mononuclear analogues with a bispyridylamine copper center. However, the compound architecture of this multinuclear metal complex is interesting and could potentially contribute to the development of new catalysts for oxygen reduction reaction (ORR).
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Anthony R. Ramuglia, Markus Go''bel, Vishal Budhija, Matthias Werheid, Khoa H. Ly, Matthias Schwalbe, Inez M. Weidinger
Summary: The catalytic properties of the iron-based porphyrin complex Py2XPFe, immobilized on a modified gold electrode surface, were investigated using spectroelectrochemical methods. The Py2XPFe was immobilized on the gold electrode using a pyridine-based amine linker molecule. The changes in vibrational marker bands of the immobilized catalyst under different cathodic potentials indicated that Py2XPFe exists in the high-spin Fe(III) state before being reduced to the low-spin Fe(II) state, which acts as the precatalyst for the proton reduction reaction.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhiqiang Zeng, Sven Kuespert, S. Esmael Balaghi, Haytham E. M. Hussein, Niklas Ortlieb, Markus Knaebbeler-Buss, Philipp Huegenell, Stephan Pollitt, Niclas Hug, Julia Melke, Anna Fischer
Summary: Constructing highly dispersed ultrasmall Platinum entities is an effective strategy to increase Pt utilization and mass activities, and reduce costs.
Article
Chemistry, Physical
Victoria Davis, Nina Heidary, Amandine Guiet, Khoa Hoang Ly, Maximilian Zerball, Claudia Schulz, Norbert Michael, Regine von Klitzing, Peter Hildebrandt, Stefan Frielingsdorf, Oliver Lenz, Ingo Zebger, Anna Fischer
Summary: The oxygen tolerance of membrane-bound [NiFe] hydrogenase (MBH) from Cupriavidus necator makes it an attractive electrocatalyst for hydrogen energy conversion devices. By immobilizing MBH with affinity tags on a tin-rich indium tin oxide (ITOTR) electrode, hydrogen oxidation and an unusually high proton reduction current were observed, suggesting bidirectionality in unidirectional [NiFe] hydrogenases. The favorable enzyme-semiconductor interactions contribute to this behavior.
Review
Biochemistry & Molecular Biology
Peter Hildebrandt
Summary: This review summarizes how resonance Raman and IR spectroscopy contributed to the understanding of the structure, dynamics, and reaction mechanism of phytochromes. It also discusses the challenges faced in experimental and theoretical research and describes strategies to overcome them.
Review
Chemistry, Physical
Andres M. R. Ramirez, Sima Heidari, Ana Vergara, Miguel Villicana Aguilera, Paulo Preuss, Maria B. Camarada, Anna Fischer
Summary: Due to contamination and global warming, alternative environmentally friendly energy sources are necessary. Hydrogen is a promising alternative, especially when obtained through water electrolysis operated with renewable energy sources. Among possible electrolyzers, proton exchange membrane (PEM) electrolyzers are considered the most promising commercial systems for hydrogen production. However, the use of noble metals as electrocatalysts in their electrodes affects their mass production. Thus, it is crucial to search for more abundant, cheaper, and stable catalysts for PEM technology to promote green hydrogen production.
Article
Chemistry, Physical
Martin Obermeier, Volkan Caliskanyuerek, Rana Lomlu, Robin Giereth, Beatrice Cula, Stefanie Tschierlei, Matthias Schwalbe
Summary: This study reports the synthesis and characterization of two isomers of homobimetallic rhenium complexes and their photo- and electrochemical properties. The CO2 to CO transformation was observed in the presence of the photosensitizer [Ir(dFppy)(3)], showing enhanced catalytic activity due to the cooperative Re-Re interaction. Electrochemical measurements also demonstrated the cooperative CO2 activation for one of the isomers, cisL1-Re2Cl2. These isomers exhibit better catalytic properties compared to their mononuclear counterpart.
Article
Chemistry, Multidisciplinary
Gauthier Studer, Alexei Schmidt, Jan Buettner, Maximilian Schmidt, Anna Fischer, Ingo Krossing, Birgit Esser
Summary: This article introduces a potential rechargeable aluminum-ion battery (AIB) material with a high specific capacity. The redox polymer can act as a positive electrode material, overcoming the limitations of current AIBs. It exhibits a reversible two-electron redox process and achieves a specific capacity of up to 167 mA h g(-1), surpassing graphite as a positive electrode material. The AIB also demonstrates excellent capacity retention at fast rates and can be cycled reversibly at slower rates, making it a promising candidate for sustainable energy storage devices.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Tarali Devi, Kuheli Dutta, Jennifer Deutscher, Stefan Mebs, Uwe Kuhlmann, Michael Haumann, Beatrice Cula, Holger Dau, Peter Hildebrandt, Kallol Ray
Summary: This study emphasizes the importance of subtle electronic changes and secondary interactions in the stability of biologically relevant metal-dioxygen intermediates. It also shows that the role of the chloride ligand in stabilizing the Fe-III-(OOBu)-Bu-t moiety can extend to other anions, including the thiolate ligand.
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)