Article
Engineering, Chemical
Jian Song, Zhigang Wang, Xiaoyao Tan, Yifan Cui, Sibudjing Kawi, Shaomin Liu
Summary: A BCFS perovskite hollow fiber membrane was prepared by phase inversion and sintering technique with the addition of Co2O3 to enhance mechanical strength and reduce sintering temperature. The membrane exhibits simultaneous permeation of hydrogen and oxygen, showing potential as a catalytic membrane reactor for various reactions. Simultaneous permeation enhances hydrogen and oxygen fluxes by reducing gas concentrations and promoting gas/ion exchange reactions.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Dongcheng Li, Xiaopeng Wang, Wen Tan, Yanhao Huang, Lingyong Zeng, Yiyi He, Peifeng Yu, Huixia Luo
Summary: The study introduces a new ceramic composite oxygen transport membrane with excellent CO2 stability and acceptable oxygen permeability, offering potential applications in oxy-fuel combustion. The optimal doping composition shows a comparable oxygen permeation rate and steady performance under a pure CO2 environment for 50 hours, enhancing its practicality in modern clean energy industries.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Shipeng Zeng, Yao Lu, Tianrang Yang, Kui Li, Hailei Zhao
Summary: In this study, a dual-phase oxygen permeation membrane consisting of 30 wt% perovskite phase and 70 wt% fluorite phase was prepared using a one-pot EDTA/citric-nitrate combustion method. The membrane showed improved oxygen permeability after coating with a porous LSCF layer. The asymmetric membrane exhibited excellent permeation flux at 950 degrees C.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
O. V. Cherendina, E. V. Shubnikova, M. O. Khokhlova, O. A. Bragina, A. P. Nemudry
Summary: In this study, dual-phase LSCF-SDC hollow fiber membranes were prepared using a combination of phase inversion and sintering technique. The oxygen flux through the membranes was found to be limited by surface exchange reactions, and the membranes showed high resistance to CO2 in short-term stability test.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Materials Science, Ceramics
A. R. Gilev, E. A. Kiselev, D. S. Chezganov, A. S. Volegov, E. R. Khuzyagulov, V. A. Cherepanov, A. Maignan
Summary: The study reveals that manganese doping in La1.5Sr0.5Ni1-yMnyO4+delta ceramic membranes affects crystallite orientation and oxygen permeation flux, with an increase in Mn4+ concentration contributing to a significant decrease in surface limitations of the oxygen exchange process.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
E. Deronzier, T. Chartier, P-M Geffroy
Summary: This study focused on evaluating the oxygen semi-permeation performances of Ba1-xSrxFeO3-delta perovskite membranes, finding that the best performance was achieved with Ba0.9Sr0.1FeO3-delta perovskite membranes. The oxygen diffusion and desorption coefficients were determined for a better understanding of oxygen transport through these membranes with different Sr and Ba contents.
SOLID STATE IONICS
(2021)
Article
Engineering, Chemical
Marwan Laqdiem, Julio Garcia-Fayos, Laura Almar, Maria Balaguer, Jose M. Serra
Summary: Oxygen transport membranes (OTMs) are attractive for decarbonization of the industry, but the oxygen permeation remains a limitation. Dual-phase composite materials have potential as membrane candidates due to their stability under CO2 atmospheres. The phase ratio in the catalytic layers affects the surface-exchange reactions and plays a crucial role in improving the oxygen flux.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jian Song, Claudia Li, Shao Zhang, Kai Wang, Bo Meng, Xiaoyao Tan, Jaka Sunarso, Shaomin Liu
Summary: This study presents Sc-doped BCFe composites with enhanced thermal stability for BaCeO3-based ceramics. The BCFSc20 hollow fiber membranes exhibit the highest hydrogen and oxygen fluxes at high temperatures, along with excellent stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Montree Hankoy, Chaiwat Phrompet, Prangtip Rittichote Kaewpengkrow, Supawan Vichaphund, Duangduen Atong, Mettaya Kitiwan, Phacharaphon Tunthawiroon
Summary: Graphene oxide (GO) membranes were investigated for hydrogen (H2) purification applications. The alumina/graphene oxide (AGO) composites with varying contents of GO were fabricated and characterized. The AGO membranes exhibited enhanced hydrogen permeance and selectivity compared to pristine Al2O3 membrane, and the gas permeation mechanism followed Knudsen diffusion.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Chemical
Fanlin Zeng, Stefan Baumann, Juergen Malzbender, Arian Nijmeijer, Louis Winnubst, Olivier Guillon, Ruth Schwaiger, Wilhelm A. Meulenberg
Summary: By optimizing the powder preparation method for a solid-state reactive sintering process, the blocking effects of individual phases within dual phase membranes can be alleviated. Homogenous powder mixtures with fine particle size can achieve high oxygen permeance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Yeong A. Lee, Ji Haeng Yu, Hana Yoon, Dong-Woo Cho, Kyubock Lee, Chung-Yul Yoo
Summary: The study systematically investigated the oxygen permeability and OCM characteristics of a 30 vol.% NiFe2O4-70 vol.% Gd0.1Ce0.9O2-delta (NFO-GDC) composite membrane under various operational conditions. It was found that the NFO-GDC membrane exhibited high oxygen permeation flux and OCM yield, especially when a Mn/Na2WO4/SiO2 catalyst was applied.
Article
Chemistry, Physical
Jingle Wang, Zhibin Yang, Kaichuang Yang, Suping Peng
Summary: The kinetics of oxygen reaction in porous LSCF and LSCF-GDC electrodes were systematically studied, with GDC accelerating oxygen transport and diffusion and promoting oxygen reaction at the triple-phase boundary. CO2 was found to suppress oxygen reaction in LSCF-GDC, while increasing GDC content improved CO2 tolerance. Additionally, H2O was observed to aggravate CO2 degradation at low temperature.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
Kati Raju, Seyoung Kim, Eun Jung Kang, Kyong Sik Yun, Young-Hoon Seong, In-Sub Han, Hyun-Kwuon Lee, Ji Haeng Yu
Summary: In this study, a two-step sintering (TSS) technique was applied to prepare GDC-LSCF composites, resulting in finer microstructures and improved mechanical properties compared to conventional sintering (CS) method. The TSS process led to approximately 31% increase in flexural strength and 7% increase in hardness values, demonstrating its effectiveness in enhancing the material properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Engineering, Chemical
Guangru Zhang, Dragos Neagu, Peter J. King, Sami Ramadan, Anthony O'Neill, Ian S. Metcalfe
Summary: Perovskite oxides with mixed ionic and electronic conductivity are of interest for oxygen separation membranes, but they often degrade due to segregation and reaction with sulfur-based species in natural gas. Coating these membranes with Alumina layers by atomic layer deposition can delay or prevent degradation, with a critical coating thickness of around 30 nm showing no negative effect on O-2 transport flux and good flux recovery after H2S removal. Thinner coatings provide little protection against poisoning, while thicker coatings significantly decrease O-2 permeation fluxes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Shu Wang, Xiaopeng Wang, Yanhang Huang, Lingyong Zeng, Yiyi He, Mebrouka Boubeche, Huixia Luo
Summary: The previously unreported Ce0.9Pr0.1O2-delta-Pr0.6Ca0.4MnO3-delta (CPO-PCMO) dual-phase membrane was successfully designed and fabricated, showing excellent stability and oxygen permeability under various conditions. The membrane displayed good CO2 stability at high temperatures, making it a promising material for potential applications.
CHEMIE INGENIEUR TECHNIK
(2022)
Review
Chemistry, Physical
Ragnar Kiebach, Steven Pirou, Lev Martinez Aguilera, Astri Bjornetun Haugen, Andreas Kaiser, Peter Vang Hendriksen, Maria Balaguer, Julio Garcia-Fayos, Jose Manuel Serra, Falk Schulze-Kueppers, Max Christie, Liudmila Fischer, Wilhelm Albert Meulenberg, Stefan Baumann
Summary: Oxygen transport membranes (OTMs) are a promising technology for oxygen production, offering lower costs and power consumption compared to cryogenic air separation or pressure swing adsorption. Dual-phase OTMs, composed of a stable ionic conductor and electronic conductor composite, have advantages over single-phase membranes in terms of chemical and mechanical stability. However, challenges remain in their large-scale employment.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Sara Escorihuela, Cristina Cerda-Moreno, Fynn Weigelt, Sonia Remiro-Buenamanana, Sonia Escolastico, Alberto Tena, Sergey Shishatskiy, Torsten Brinkmann, Antonio Chica, Jose M. Serra
Summary: In this study, thin-film composite membranes (TFCM) were developed for in-situ water removal in a catalytic membrane reactor (CMR) for the Sabatier process, enabling higher catalytic stability and activity at elevated temperatures. The TFCM-mediated water extraction significantly improved CO2 conversion stability, with a notable increase in CO2 conversion rate and specific flux.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Multidisciplinary Sciences
Daniel Clark, Harald Malerod-Fjeld, Michael Budd, Irene Yuste-Tirados, Dustin Beeaff, Simen Aamodt, Kevin Nguyen, Luca Ansaloni, Thijs Peters, Per K. Vestre, Dimitrios K. Pappas, Maria Valls, Sonia Remiro-Buenamanana, Truls Norby, Tor S. Bjorheim, Jose M. Serra, Christian Kjolseth
Summary: Proton ceramic reactors efficiently extract hydrogen from ammonia, methane, and biogas by combining endothermic reforming reactions with heat from electrochemical gas separation and compression. The successful scale-up to a 36-cell reactor stack demonstrates its potential in efficient hydrogen production, with complete conversion and high recovery rates of methane and ammonia even at high pressures.
Article
Engineering, Chemical
Elisa Mercadelli, Angela Gondolini, Matteo Ardit, Giuseppe Cruciani, Cesare Melandri, Sonia Escolastico, Jose M. Serra, Alessandra Sanson
Summary: This study investigated the hydrogen permeation of BCZY-GDC asymmetric membranes for 100 hours using wet 15% CO2 in Ar as the sweep gas. The results showed that the asymmetric membranes exhibited promising and stable hydrogen permeation flux values under the test conditions, and no structural or morphological changes were detected after the testing.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
L. Navarrete, C. Hannahan, J. M. Serra
Summary: The effect of B-site substituted cations on the stability and electrochemical performance of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite was investigated. The presence of these substituted cations improved stability by preventing the formation of detrimental phases and reducing the formation of carbonates. Symmetrical cell testing showed that the Sc-substituted material mixed with GDC had the lowest polarization resistance and was chosen as the cathode for the full cell construction. The composite electrode exhibited encouraging power density and stability.
SOLID STATE IONICS
(2022)
Article
Chemistry, Physical
Shaochen Zhu, Michel Drazkowski, Bernard A. Boukamp, Henny J. M. Bouwmeester
Summary: The oxygen and proton transport properties of La5.4WO11.1-delta were investigated, and the conductivity relaxation was found to be influenced by the diffusion coefficients and exchange coefficients of hydrogen and oxygen. The relaxation behavior was observed to vary with the magnitude of the current used in the measurements, and the use of gold electrodes and interfacial capacitances may lead to erroneous results and interpretations.
SOLID STATE IONICS
(2022)
Article
Chemistry, Physical
Yubing Li, Lei Zeng, Ge Pang, Xueer Wei, Mengheng Wang, Kang Cheng, Jincan Kang, Jose M. Serra, Qinghong Zhang, Ye Wang
Summary: The direct hydrogenation of CO2 to gasoline and olefins using bifunctional iron-zeolite tandem catalysts operated at high temperatures (>300 degrees C) can efficiently utilize CO2 from industrial combustion and green H2 produced by solid oxide electrolytic cells (SOEC). The optimized FeMnK+H-ZSM-5 catalyst achieves a selectivity of 70% for C5-C11 range hydrocarbons and 17% for C2-C4 lower olefins at 320 degrees C. The conversion levels of CO2 and the aromatics contents are significantly enhanced at higher temperatures.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Marwan Laqdiem, Julio Garcia-Fayos, Laura Almar, Maria Balaguer, Jose M. Serra
Summary: Oxygen transport membranes (OTMs) are attractive for decarbonization of the industry, but the oxygen permeation remains a limitation. Dual-phase composite materials have potential as membrane candidates due to their stability under CO2 atmospheres. The phase ratio in the catalytic layers affects the surface-exchange reactions and plays a crucial role in improving the oxygen flux.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Marwan Laqdiem, Alfonso J. Carrillo, Georgios Dimitrakopoulos, Maria Balaguer, Julio Garcia-Fayos, Ahmed F. Ghoniem, Jose M. Serra
Summary: This study investigates the application of cerium oxide (CeO2) particles in solar-driven thermochemical cycles and explores the effect of doping with other cations on oxygen-vacancy concentration and crystal lattice. The results show that doping can enhance fuel yield and redox oxygen-exchange kinetics.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
S. Escolastico, M. Balaguer, C. Solis, F. Toldra-Reig, S. Somacescu, U. Gerhards, A. Aguadero, K. Haas-Santo, R. Dittmeyer, J. M. Serra
Summary: Catalytic membrane reactors based on H2-separation membranes can enhance the performance of thermodynamically-limited reactions. This study characterizes the stability of La5.4WO11.1-& delta; protonic membrane material under H2S conditions and demonstrates the changes in crystalline structure and transport properties caused by the incorporation of sulfur.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Daria Balcerzak, Iga Szpunar, Ragnar Strandbakke, Sarmad W. Saeed, Calliope Bazioti, Aleksandra Mielewczyk-Gryn, Piotr Winiarz, Alfonso J. Carrillo, Maria Balaguer, Jose M. Serra, Maria Gazda, Sebastian Wachowski
Summary: This study investigated the Lu doping of Ba0.5La0.5CoO3 and its effect on the exsolution of oxide nanoparticles. The Lu doping caused phase segregation into the main BLCO-Lu phase and the secondary BCO-Lu phase. Exsolution of BCO-Lu nanoparticles on the main BLCO-Lu phase and vice versa was observed, indicating mutual exsolution of oxide NPs. Trace amount of the BaLuCo4O7 phase was also detected. The size and shape of the exsolved oxide NPs could be controlled by varying the annealing temperature. The findings provide potential for designing novel, more catalytically active materials for future electrochemical devices.
Article
Chemistry, Inorganic & Nuclear
Aleksandra Mielewczyk-Gryn, Shuhao Yang, Maria Balaguer, Ragnar Strandbakke, Magnus H. Sorby, Iga Szpunar, Agnieszka Witkowska, Sebastian Wachowski, Jose M. Serra, Alexandra Navrotsky, Maria Gazda
Summary: This study investigates the formation energetics and stability of BaLnCo(2)O(6-delta) (Ln = La, Pr, Nd, and Gd) (BLnC) and BaGd1-xLaxCo2O6-delta, where x = 0.2, 0.5, and 0.7 (BGLC) double perovskite cobaltites under high water partial pressure. These materials have potential applications in electrochemical devices as positrodes. It is found that all investigated materials are thermodynamically stable relative to binary oxides and exhibit exothermic enthalpies of formation. The BGLC compounds show higher negative formation enthalpies compared to single-Ln compositions, but the BLnC series demonstrate better chemical stability under high steam pressures.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Andres Lopez-Garcia, Aitor Dominguez-Saldana, Alfonso J. Carrillo, Laura Navarrete, Maria I. Valls, Beatriz Garcia-Banos, Pedro J. Plaza-Gonzalez, Jose Manuel Catala-Civera, Jose Manuel Serra
Summary: Exsolution has become a promising method for generating metallic nanoparticles, offering better stability and robustness compared to conventional deposition methods. Alternative exsolution methods that do not rely on high-temperature reduction are being explored, such as utilizing electrochemical potentials or plasma technologies. In this study, a method based on pulsed microwave radiation is proposed for driving the exsolution of metallic nanoparticles, enabling high scalability with short exposure times and low temperatures.
Article
Chemistry, Multidisciplinary
J. M. Serra, M. Balaguer, J. Santos-Blasco, J. F. Borras-Morell, B. Garcia-Banos, P. Plaza-Gonzalez, D. Catalan-Martinez, F. Penaranda-Foix, A. Dominguez, L. Navarrete, J. M. Catala-Civera
Summary: This study investigates microwave-induced redox transformations on solid-state ion-conducting materials, and finds that reduction is triggered at a specific temperature leading to a significant increase in electric conductivity. The effectiveness of the redox process is influenced by material composition, gas environment, and microwave power intensity, with fine-grained materials showing amplified effects.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ragnar Strandbakke, David S. Wragg, Magnus H. Sorby, Matylda N. Guzik, Anette E. Gunnaes, Iga Szpunar, Sebastian Lech Wachowski, Maria Balaguer, Patricia A. Carvalho, Aleksandra Mielewczyk-Gryn, Jose M. Serra, Truls Norby
Summary: BGLC compositions with large compositional ranges of Ba, Gd, and La show significant compositional flexibility and the ability to tune functional properties, as well as anisotropic chemical expansion.
DALTON TRANSACTIONS
(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)
