Article
Chemistry, Physical
M. Ismail, N. A. Ali, N. A. Sazelee, S. Suwarno
Summary: In this study, aluminum titanate was used as an additive to improve the dehydrogenation properties of lithium alanate. The results showed that the addition of 5 wt.% aluminum titanate significantly lowered the decomposition temperature and enhanced the desorption kinetics of lithium alanate. The alkali titanate-doped lithium alanate was able to release a higher amount of hydrogen at lower temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
M. Ismail, N. A. Sazelee, N. A. Ali, S. Suwarno
Summary: The addition of strontium titanate (SrTiO3) was found to effectively lower the onset decomposition temperature and improve desorption kinetic properties of lithium alanate (LiAlH4). SrTiO3 did not react during the mechanical milling and heating processes, suggesting a catalytic role in enhancing the dehydrogenation storage properties of LiAlH4.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Carmen Gherasim, Petronela Pascariu, Mihai Asandulesa, Marius Dobromir, Florica Doroftei, Nicusor Fifere, Andrei Dascalu, Anton Airinei
Summary: In this study, cupric oxide nanoparticles were prepared using a convenient chemical precipitation route. The effect of reaction conditions on the formation of CuO nanoparticles was investigated. The structural, morphological, optical, and electrical properties of the CuO nanostructures were analyzed using various techniques. Additionally, the photocatalytic activity of the CuO nanoparticles was studied.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
N. Salman Tabrizi, M. Yavari
Summary: In this study, the structure of the RF sol-gel was investigated by measuring N2 adsorption/desorption isotherms at 77 K. The results showed that the amount of carbon nanotubes, heating rate, and carbonization temperature all have impacts on the pore structure of the aerogel. Increasing the amount of carbon nanotubes initially decreased the surface area and pore volume, but then it increased again. Higher heating rate led to an increase in meso pore surface, while higher carbonization temperature resulted in a decrease in micro pore volume.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Raul T. Rodrigues, Jose R. Siqueira Jr., Luciano Caseli
Summary: The catalytic activity of enzymes immobilized in LB films can be influenced by the insertion of carbon nanotubes, leading to enhanced stability and rheological properties of the system. The enzyme-CNT-lipid film showed at least twice the catalytic activity compared to pure enzyme, demonstrating the potential for an alternative bio-inspired film with high control over molecular architecture using the LB approach.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Fei Pan, Haodong Ji, Penghui Du, Taobo Huang, Chong Wang, Wen Liu
Summary: This study successfully degraded and mineralized CBZ using AMnTi composite material, increasing the degradation rate of CBZ. The high catalytic activity of AMnTi is attributed to its unique structure, leading to efficient charge transfer and catalytic activation through Mn-O-Ti linkage, and a Mn-Ti cycle mediating catalytic activation of PMS was discovered. Both hydroxyl and sulfate radicals played key roles in CBZ degradation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Spectroscopy
S. Akshay, Y. S. Vidya, H. C. Manjunatha, K. Munirathnam, K. Gurushantha, K. N. Sridhar, S. C. Prashantha
Summary: Europium activated Zirconium Titanate nanoparticles were synthesized using Aloe Vera gel extract as a reducing agent. The synthesized samples showed a pure orthorhombic crystal structure and an increase in dopant concentration led to an increase in crystallite size but a decrease in direct energy band gap. The presence of Eu3+ ion in the host lattice was confirmed and ZTO:Eu3+ nanoparticles were found to be suitable for use as a red-emitting phosphor material.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Gelson L. C. Rodrigues, Tainara G. de Oliveira, Suziete B. S. Gusmao, Odair P. Ferreira, Thiago L. Vasconcelos, Yuset Guerra, Raquel Milani, Ramon Pena-Garcia, Bartolomeu C. Viana
Summary: Titanate nanotubes were synthesized and exchanged with erbium ions through an ion exchange reaction. The effects of thermal treatment atmosphere on the structural and optical properties of erbium titanate nanotubes were evaluated. It was found that the morphology of the nanotubes was preserved with the presence of erbium oxide phases. The dimensions of the samples were varied by ion exchange and thermal treatment, which also affected the optical properties. The results suggest the potential applications of thermally treated erbium titanate nanotubes in optoelectronics and photonics.
Article
Polymer Science
Ema Stojchevska, Riste Popeski-Dimovski, Zivko Kokolanski, Chiara Gualandi, Aleksandra Buzarovska
Summary: Flexible, low-cost thermoplastic polyurethane composite films with functionalized BaTiO3 and multiwall carbon nanotubes were prepared and tested as dielectric materials. The effects of particle functionalization and BT content on the structural, mechanical, and energy storage properties were studied, and it was found that they significantly affect the hydrogen bonding within the polymer matrix and have a huge impact on the mechanical and dielectric properties. The optimal concentration of functionalized BT and MWCNTs was determined, resulting in the highest dielectric constant and dielectric breakdown strength.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Crystallography
Chengxin Ping, Xiaojuan Chen, Fan Qin, Weihua Ma
Summary: In this study, nickel phosphate nanotubes with different morphologies and structures were synthesized using a hydrothermal method. The nanotubes were characterized using various techniques and exhibited special catalytic performance in the isomerization reaction of epoxy propane.
CRYSTAL RESEARCH AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Martin Esteves, Dominique Mombru, Mariano Romero, Luciana Fernandez-Werner, Ricardo Faccio, Alvaro W. Mombru
Summary: This study synthesized nanoscale heterostructures comprised of sodium titanate nanotubes decorated with CuInS2 quantum dots, showcasing enhanced electrical conductivity and improved optical properties. These features suggest the potential use of these heterostructures as photoelectrodes in solar cell applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Gayatree Barik, Sourav Pal
Summary: Research on the investigation of new classes and new dimensionalities of materials in nanotechnology is of great importance. In this study, the structural, mechanical, and electronic properties of one-dimensional armchair and zigzag nitrogen nanotubes were investigated. It was found that the formation of armchair nanotubes is more energetically favorable and the electronic band gap is correlated with the tube size and axial strain.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Oana-Georgiana Dragos-Pinzaru, Gabriela Buema, Daniel Gherca, Ibro Tabakovic, Nicoleta Lupu
Summary: CoPt alloys with different Pt contents were prepared using low-cost electrochemical deposition, and the morphology, composition, and crystalline structure of the samples were investigated. The results showed that the crystalline structure transformed with changes in pH and the addition of saccharin. Furthermore, the catalytic performance of the CoPt alloys improved even with a decrease in Pt content.
Article
Materials Science, Multidisciplinary
Gelson L. C. Rodrigues, Tainara G. de Oliveira, Suziete B. S. Gusmao, Thalles M. F. Marques, Odair P. Ferreira, Anupama Ghosh, Clenilton C. dos Santos, Raquel Milani, Ramon R. P. Garcia, Bartolomeu C. Viana
Summary: The effects of rare earth ions on the optical properties of titanate nanotubes were investigated through ion exchange and thermal treatment.
Article
Chemistry, Multidisciplinary
Yijie Cheng, Yufei Zhang, Zhe Zhao, Gang Li, Jie Li, Anran Li, Yun Xue, Baolin Zhu, Zhongming Wu, Xinge Zhang
Summary: This study presents an activatable nanostructure for synergistic sonodynamic-catalytic therapy of MRSA-infected osteomyelitis. The nanostructure effectively kills bacteria and promotes inflammation resolution and bone cell proliferation, showing promising potential for osteomyelitis treatment.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Manas K. Bhunia, Debraj Chandra, Hitoshi Abe, Yasuhiro Niwa, Michikazu Hara
Summary: This study investigates the reductive amination of carbonyls to primary amines using heterogeneous catalysts containing earth-abundant metals. The researchers find that a nickel catalyst with mixed oxidation states shows high activity under low temperature and H-2 pressure, likely due to the formation of partially oxidized nickel nanoparticles homogeneously anchored onto silica. The stabilization of these nanoparticles through strong metal support interaction via electron donation from the metal to support is identified as a key factor. The study opens up a new avenue for the rational development of efficient catalysts for organic transformations under mild reaction conditions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Eri Hayashi, Takatoshi Tamura, Takeshi Aihara, Keigo Kamata, Michikazu Hara
Summary: Heterogeneously catalyzed aerobic oxidative C-H functionalization under mild conditions was achieved using nanosized murdochite-type oxide Mg6MnO8 (Mg6MnO8-MA) synthesized by the sol-gel method. The catalyst exhibited superior catalytic performance and could be reused several times without significant loss of activity. The mechanism of hydrogen atom transfer was found to be controlled by basicity, with O-2 activation playing a crucial role in the oxidation process.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Fei Han, Han Sun, Zhenchao Zhao, Yaxin Xu, Hong Dong, Weiwei Liu, Lu Sun, Zhili Wang, Guangjin Hou, Masaaki Kitano, Wei Li, Meiqing Shen, Haijun Chen
Summary: In this study, an environmentally friendly deNO(x) method using methanol as a reductant and pure H-FER zeolite as the catalyst was proposed. The metal-free zeolite showed nearly 4 times higher activity compared to commonly used precious metal catalysts. It exhibited comparable deNO(x) efficiency with state-of-the-art NH3-SCR on vanadium-based catalysts, along with good stability and potential for industrial application.
Article
Chemistry, Multidisciplinary
Masayoshi Miyazaki, Kiya Ogasawara, Takuya Nakao, Masato Sasase, Masaaki Kitano, Hideo Hosono
Summary: In this study, heavily H-doped BaTiO(3-x)Hx was used as an efficient and water-durable catalyst support for Pd nano-particles in liquid-phase hydrogenation reactions. The BaTiO(3-x)Hxoxyhydride with a hexagonal crystal structure exhibited metallic properties and showed high catalytic activity for the selective hydrogenation of unsaturated C-C bonds.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Satomi Shibata, Keigo Kamata, Michikazu Hara
Summary: LaFeO3 nanoparticles synthesized using aspartic acid as a sol-gel method exhibit efficient and stable heterogeneous catalytic activity for the oxidative transformation of alpha-bromostyrene to phenacyl bromide under mild conditions without the need for additives and light irradiation. Changing the A-site metal cation from alkaline metals to lanthanum significantly improves the stability of Fe-containing perovskite oxides. LaFeO3 shows higher catalytic activity compared to other Fe3+/Fe2+-containing simple oxides, and the reaction proceeds through a radical-type mechanism involving surface adsorbed O-2 species over p-type LaFeO3.
Article
Chemistry, Multidisciplinary
Maki Koutani, Eri Hayashi, Keigo Kamata, Michikazu Hara
Summary: This study successfully synthesized mesoporous todorokite-type manganese oxide (OMS-1) nanoparticles with high specific surface areas using a new synthesis approach. It was found that there is a linear correlation between the catalytic performance and the surface area of the nanoparticles, without a trade-off relationship between particle size and catalytic activity. The OMS-1 nanoparticles exhibited high catalytic activity for the oxidation reactions and can be used as recyclable heterogeneous catalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Yusuke Kita, Midori Kuwabara, Keigo Kamata, Michikazu Hara
Summary: Alcohol transformations through the borrowing hydrogen methodology using nonprecious metal heterogeneous catalysts have shown promising applications. In this study, supported Mn catalysts (Mn-MgO/Al2O3) were used as reusable heterogeneous catalysts for the construction of C-C bonds by the alpha-alkylation of ketones with alcohols. The catalyst exhibited high catalytic performance and did not require the addition of homogeneous strong bases, reducing energy consumption and waste treatment.
Article
Nanoscience & Nanotechnology
Takeshi Aihara, Wataru Aoki, Shin Kiyohara, Yu Kumagai, Keigo Kamata, Michikazu Hara
Summary: In this study, perovskite oxide nanoparticles were successfully synthesized using dicarboxylic acids as reagents. The resulting SrTiO3 nanoparticles showed high catalytic activity for the cyanosilylation of carbonyl compounds, even without a heat pretreatment.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Masashi Hattori, Natsuo Okuyama, Hiyori Kurosawa, Michikazu Hara
Summary: The Haber-Bosch process is required to produce ammonia without using fossil fuels in order to reduce global CO2 emissions. It is crucial to develop heterogeneous catalysts that can synthesize ammonia at temperatures below 100-150 degrees C to minimize energy consumption. In this study, metallic iron particles combined with an electron-donating material were used as a catalyst for ammonia synthesis, showing a high turnover frequency compared to other transition metals. This is attributed to the intrinsic desorption of hydrogen atoms from iron at low temperatures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Akihiko Kudo, Yoshihisa Sakata, Junko N. Kondo, Michikazu Hara, Jun Kubota, Shigeru Ikeda, Tsuyoshi Takata, Ryu Abe, Atsushi Takagaki, Takashi Hisatomi
Summary: Professor Kazunari Domen has focused on the research of catalysis, including the development of various photocatalysts, such as layered oxide and oxynitride photocatalysts, as well as oxysulfide photocatalysts with visible-light response. He has also explored water splitting using mechanocatalysis with metal oxides suspended in distilled water. In addition, Professor Domen has advanced the understanding of catalytic mechanisms through spectroscopic techniques such as transmission infrared spectroscopy and interfacial sum-frequency spectroscopy. Furthermore, he has investigated the use of carbon-based and layered solid acid materials as efficient catalysts.
Article
Chemistry, Physical
Aoi Matsuda, Kazuhiko Obara, Atsushi Ishikawa, Meng-Hsuan Tsai, Chia-Hsin Wang, Yu-Chuan Lin, Michikazu Hara, Keigo Kamata
Summary: The direct oxidation of methane to formaldehyde using molecular oxygen as the sole oxidant was studied over different bismuth-based catalysts. Among the catalysts tested, monoclinic BiPO4 nanoparticles synthesized in a mixed solvent of diethylene glycol (DEG) and water showed the highest catalytic activity and selectivity for formaldehyde formation.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Masashi Hattori, Natsuo Okuyama, Hiyori Kurosawa, Michikazu Hara
Summary: The Haber-Bosch process is used to produce ammonia for over 5 billion people, but now it is required to be produced without the use of fossil fuels to reduce global CO2 emissions by 3% or more. It is crucial to develop heterogeneous catalysts for ammonia synthesis below 100-150 degrees C to minimize energy consumption. This paper reports metallic iron particles combined with an electron-donating material as a catalyst for ammonia synthesis, which can catalyze ammonia synthesis even at 100 degrees C. The iron catalyst exhibits a high turnover frequency and can desorb adsorbed hydrogen atoms as hydrogen molecules at low temperatures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Keigo Kamata, Nanami Kinoshita, Maki Koutani, Ryusei Aono, Eri Hayashi, Michikazu Hara
Summary: Beta-MnO2 nanoparticles with high specific surface areas were synthesized successfully and exhibited excellent catalytic activity and selectivity in the oxidation reaction of aromatic and heteroaromatic alcohols. The catalyst could also be used for the one-pot synthesis of nitriles and amides in the presence of ammonia, without the need for additional additives.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Kahoko Kato, Dian Deng, Yusuke Kita, Keigo Kamata, Michikazu Hara
Summary: Heterogeneous transition metal catalysts play an important role in the selective synthesis of primary amines. We have discovered a composite material composed of metallic cobalt and silica particles, which exhibits high catalytic performance under mild conditions and addresses the selectivity issues in the production of secondary and tertiary amines. Mechanistic studies revealed that the substrate nitrile and the product amine hinder the hydrogenation of secondary imine intermediates, resulting in a selective reaction. Additionally, the addition of coordinating organic molecules further improves the selectivity for primary amines.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Endah Suarsih, Yusuke Kita, Keigo Kamata, Michikazu Hara
Summary: A MgO-co-deposited Co catalyst is more efficient in promoting the alpha-alkylation of ketones with alcohols through a borrowing hydrogen mechanism compared to a Ru-based catalyst. Controlled experiments revealed that MgO promoted the hydrogenation step and the TiO2 support contributed to the condensation step in the reaction sequence.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
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)
