Article
Chemistry, Physical
Shuaiwei Liu, Yunjiao Li, Shilei Wang, Yongxiang Chen, Zhouliang Tan, Jiachao Yang, Shiyi Deng, Zhenjiang He
Summary: In this study, a viable and effective approach to fabricate yttrium modified LiNi0.8Co0.15Al0.05O2 (NCA) cathode materials with higher electrochemical performance has been reported. The yttrium modified materials exhibit notably enhanced electrochemical performance, with potential application in the cathode materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Supriya Kadam, Ranjit Kate, Ujjwala Chothe, Parshuram Chalwadi, Jayant Shingare, Milind Kulkarni, Ramchandra Kalubarme, Bharat Kale
Summary: In this study, the performance of MWCNT@Na3V2(PO4)3 (NVP) composite and pure NVP as cathode materials for sodium-ion batteries (SIBs) were compared. The distribution of MWCNTs in the NVP structure was confirmed through morphological analysis. Impedance spectroscopy showed that the MWCNT@NVP composite had higher Na ion diffusion and specific capacity compared to pure NVP. The composite also exhibited better stability and Coulombic efficiency, making it a promising cathode material for SIBs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Dominika Baster, Lukasz Kondracki, Emad Oveisi, Sigita Trabesinger, Hubert H. Girault
Summary: Sodium-vanadium hexacyanoferrate shows high and stable working potential in a liquid organic electrolyte, achieving excellent capacity retention after 200 cycles. Vanadium substitution in the Prussian blue crystal structure improves cycle life and represents progress in developing cathode materials for Na-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Xiaoqin Huang, Deli Li, Haijian Huang, Xiao Jiang, Zeheng Yang, Weixin Zhang
Summary: The Zn/Mg dual-doped P2-Na0.67MnO2 with lower Mn3+/Mn4+ ratio and higher lattice O content shows improved structural stability and enhanced ion diffusion, leading to high rate performance and decent cycling stability. This co-doping strategy provides a promising avenue for further enhancing the performance of layered Na-ion batteries cathode materials.
Article
Chemistry, Physical
Yinshen Liu, Wenjing Zhao, Kunpeng Ding, Sai Qin, Danyi Liu, Ying Chen, Yicheng Liu, Qingyu Xu, Kai Shen, Qi Fan
Summary: A novel structure for Li/Na hybrid-ion batteries with unique two-stage electrochemical reactions is proposed. This design strategy harnesses the synergistic contribution of Li+ and Na+ ions, providing an efficient solution to improve battery performance and achieve superior rate performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Dinghao Le, Zhiwei Zhou, Jingyi Li, Hao Fu, Feixiang Wu, Yunjiao Li, Junchao Zheng, Zhenjiang He
Summary: Functionalizing the Na0.67Mn0.92Cu0.04Fe0.04O2 (NMCFO) cathode material with tetradecylphosphonic acid (TPA) on the surface improves its air stability by enhancing surface hydrophobicity and inhibiting hydration reaction. The modified material retains a specific capacity of 94.0 mAh g-1 at 5C after 28 days of placement in the humid air, with a capacity retention of 92.22% after 100 cycles at 1C.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
A. Shahul Hameed, Mirai Ohara, Kei Kubota, Shinichi Komaba
Summary: A phosphite-based layered polyanionic material was explored as a positive electrode for Na-ion batteries with high energy density and long cycle life. The material exhibited high discharge capacity in Na half-cells, and capacity fading was overcome through ball-milling with carbon. The layered material facilitated the migration of large Na+ ions, resulting in superior rate performance and long-term cycling stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Daulatabad Narsimulu, Ragammanavara Shanthappa, Hari Bandi, Jae Su Yu
Summary: The use of CaV3O7/V2O3 composite material as the cathode can provide excellent electrochemical performance, enabling rechargeable zinc-ion batteries to have outstanding energy storage capacity, and exhibiting good cycling stability at higher current rates.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Review
Chemistry, Physical
Ashwani Tyagi, Nagmani, Sreeraj Puravankara
Summary: AMHCFs have shown potential as cathode materials in both SIBs and PIBs, offering superior performance and sustainability. Optimizing the structure of AMHCF cathodes, reducing vacancies and water content, while maintaining high crystallinity and Na+/K+ content, are key to enhancing electrochemical performance.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Yin Li, Li Wang, Feng Liang, Yaochun Yao, Keyu Zhang
Summary: This study successfully improved the electronic conductivity and lithium ion mobility of LiFePO4 through boron doping at the P-site, enhancing its electrochemical performance. The LiFeP0.98B0.02O4-delta/C exhibited the best performance, delivering a first discharge capacity of 138 mAh g(-1) at 2C with no evident capacity fading after 300 cycles. However, excessive doping of boron could lead to oxygen defects in the material, resulting in unfavorable electrochemical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Gang Wang, Shuai Yang, Youchi Ding, Mingxia Lu, Bingyan Hua, Jiaqi Kang, Wenshuai Tang, Hongliang Wei, Limin Zhu, Xiaoyu Cao
Summary: A new flexible aromatic polymer sulfonated polybenzothiazole (sPBT-SE) is reported as an advanced cathode material for storing Na+, delivering a high discharge capacity of 103 mA h g(-1) after 350 cycles at 30 mA g(-1).
CHEMICAL COMMUNICATIONS
(2022)
Article
Electrochemistry
Atin Pramanik, Alexis G. Manche, Megan T. Smeaton, Moulay-Tahar Sougrati, Philip Lightfoot, Anthony Robert Armstrong
Summary: The iron-based polyanionic fluoro-oxalate material, KFe(C2O4)F (KFCF), synthesized by hydrothermal methods, exhibits promising reversible lithium and sodium insertion properties as a cathode material. In lithium-ion and sodium-ion batteries, the material achieved a first-cycle discharge capacity of 120 mAh g(-1) and 97.4 mAh g(-1) at voltages of approximately 3.3 V (Li+/Li) and 3.0 V (Na+/Na) respectively. Stable cycling performance was observed in both cases. The involvement of reversible Fe2+/Fe3+ redox was confirmed through ex-situ Mossbauer spectroscopy and first-principles calculations. This study demonstrates the potential of mixed oxalate-fluoride based polyanionic materials in the development of new electrode materials.
Article
Chemistry, Physical
Hari Narayanan Vasavan, Manish Badole, Samriddhi Saxena, Asish Kumar Das, Sonia Deswal, Pradeep Kumar, Sunil Kumar
Summary: In this study, Ti-based P2 type Na0.7Ni0.2Cu0.1Ti0.65O2 (NNCT) was synthesized via the sol-gel route and characterized for its structural, electrical, and electrochemical properties. The analysis confirmed the presence of a single P2 phase and suppressed Na-ion vacancy ordering. NNCT showed poor conductivity and low electronic conductivity contribution to the total electrical conduction. It exhibited high specific capacities and remarkable cyclic stability, making it an attractive cathode material for Na-ion batteries in stationary storage applications. The ex situ XRD analysis confirmed its phase stability and it also exhibited moisture stability, allowing for the use of a cost-effective water-based slurry for cathode layer fabrication.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Zu-Tao Pan, Zheng-Hua He, Jing-Feng Hou, Ling-Bin Kong
Summary: In this study, sodium vanadium hexacyanoferrate was designed and synthesized as a cathode material for sodium-ion batteries, demonstrating excellent electrochemical performance and long cycling lifespan, further advancing the commercial application of sodium-ion batteries.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
K. Rajasekar, B. Raja
Summary: The paper presents a detailed experimental investigation on heat and mass transfer characteristics during the synthesis of Na2Fe0.6Mn0.4PO4F/C using intermittent spray drying. The study explores the effect of intermittency on the spray drying process heat and mass transfer characteristics. It is found that increasing the nozzle orifice diameter and pumping pressure improves heat transfer, while increasing the spray time diminishes heat transfer. The volumetric heat transfer coefficient ranges between 1.5 and 3.5 kW/m3K, and the volumetric mass transfer coefficient ranges between 2.5 and 5.0 s-1 under the considered operating conditions. Correlations for heat and mass transfer coefficients are developed based on the study.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Hyun-Soo Kim, Boran Kim, Hyunyoung Park, Jongsoon Kim, Won-Hee Ryu
Summary: This study investigates the potential of different metal-centered organometallic phthalocyanine complexes as redox mediators for efficient Li-O-2 cells. The MPc-containing Li-O-2 cells exhibit improved performance, reduced polarization, and stable cyclability, with the introduction of superoxide species confirming their auto-oxygenation properties. Additionally, blended MPcs show synergistic effects in ambient air atmosphere.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Chang-Heum Jo, Jun Ho Yu, Hee Jae Kim, Jang-Yeon Hwang, Ji-Young Kim, Hun-Gi Jung, Seung-Taek Myung
Summary: A sulfurized carbon material decorated by terephthalic acid and polyacrylonitrile shows high density and conductivity, making it suitable for high-energy room temperature sodium-sulfur batteries. By adjusting the operation voltage range, the capacity of the electrode material can be effectively increased.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jungmin Kang, Jinho Ahn, Hyunyoung Park, Wonseok Ko, Yongseok Lee, Seokjin Lee, Sangyeop Lee, Sung-Kyun Jung, Jongsoon Kim
Summary: This study reports a promising fluoride-based cathode material, Na2TiFeF7, for sodium-ion batteries, which demonstrates high specific capacity and low power attenuation. The material possesses a three-dimensional diffusion pathway, allowing for excellent cycle life and capacity retention.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Uladzislau Siamionau, Yauhen Aniskevich, Alexander Mazanik, Olga Kokits, Genady Ragoisha, Jae Hyeon Jo, Seung-Taek Myung, Eugene Streltsov
Summary: In this study, different MnO2 polymorphs were used as cathodes in zinc-ion batteries. The results showed that regardless of the polymorph, they exhibited similar electrochemical behavior and charge-discharge performance in weak acidic solutions, and underwent irreversible changes. These changes were caused by the dissolution and re-deposition of MnO2 and the formation of new manganese and zinc compounds. The newly formed MnO2 phase was amorphous and covered the surface of the initial crystalline particles, affecting the electrochemical behavior of the batteries. The electrochemical response of the MnO2 electrodes was strongly pH dependent.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Chang-Heum Jo, Natalia Voronina, Seung-Taek Myung
Summary: This article discusses the technical challenges in the synthesis, morphology control, stability, and surface modification of high-energy-density single-crystalline particle Ni-based cathode materials for lithium-ion batteries.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Hee Jae Kim, Sun Kim, Kwang Heo, Jae-Hong Lim, Hitoshi Yashiro, Seung-Taek Myung
Summary: This study addresses the issue of zinc dendritic growth in aqueous zinc-ion batteries by introducing a ZP coating, which successfully suppresses the dendrite growth and elucidates the chemical state of the dendrites. The coating layer ensures uniform deposition of zinc-derived compounds and prevents dendrites through cyclic reformation. The compatibility of this method is verified through cycles in a cell with NaV3O8 || ZP-coated zinc anode. This finding presents a practical solution for uniform zinc deposition in both aqueous and nonaqueous ZIBs.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jae Hyeon Jo, Hee Jae Kim, Najma Yaqoob, Kyuwook Ihm, Oliver Guillon, Kee-Sun Sohn, Naesung Lee, Payam Kaghazchi, Seung-Taek Myung
Summary: For the first time, hollandite-type K0.17TiO2 is introduced as a potential cathode material for potassium-ion batteries. The single-phase reaction involving K+ insertion into the tunnel structure of K0.17TiO2 is predicted by density functional theory calculation. Experimental analyses confirm the de-/intercalation of potassium ions from/into the crystal structure of K0.17TiO2, accompanied by a Ti4+/Ti3+ redox reaction. The hollandite-type K0.17TiO2 cathode exhibits excellent cycling stability and capacity retention, making it a promising candidate for potassium-ion batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Chang-Heum Jo, Kee-Sun Sohn, Seung-Taek Myung
Summary: With the increasing demand for lithium-ion batteries (LIBs), there is a need for high-energy-density batteries, which can be achieved through the use of lithium metal as a higher-capacity anode. However, due to the low efficiency and safety concerns of lithium metal, anode-free lithium-metal batteries (AFLMBs) have gained attention. The reversibility of lithium-metal plating/stripping is a crucial parameter for improving the performance of AFLMBs.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Jae-Sang Park, Chang-Heum Jo, Seung-Taek Myung
Summary: All-solid-state batteries (ASSBs), especially sulfide-based ones, are considered as the most promising electrolytes for next-generation energy storage technologies due to their high ionic conductivity. However, commercializing sulfide-based electrolytes poses challenges such as handling in inert atmosphere, sensitivity to moisture, instability between interfaces, and operating potential limitations. This article discusses the physicochemical properties of argyrodite-based electrolytes, summarizes synthetic methods and electrochemical stability findings, and explores directions for research and development.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Won Il Kim, Jeong Seok Yeon, Hyunyoung Park, Hwi Jung Kim, Min Ju Kim, Jongsoon Kim, Ho Seok Park
Summary: A new cathode material, N,P-rGO/h-MoO2@S, has been developed to address the issues of lithium-sulfur batteries, improving their discharge capacity and cycling stability.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Orynbay Zhanadilov, Hee Jae Kim, Hou-Jen Lai, Jyh-Chiang Jiang, Aishuak Konarov, Almagul Mentbayeva, Zhumabay Bakenov, Kee-Sun Sohn, Payam Kaghazchi, Seung-Taek Myung
Summary: Rechargeable zinc aqueous batteries are potential substitutes for lithium-ion batteries in grid energy storage systems, but they face challenges such as the limited stability window of water and fast zinc dendrite growth. In this study, a fiberglass-incorporated dual-ion zwitterionic hydrogel electrolyte with high ionic conductivity and stability was developed. By using this electrolyte in a zinc//LiMn0.6Fe0.4PO4 pouch cell, excellent electrochemical performance was achieved with high capacity and retention after cycling, as well as fire resistance and safety even after cutting and piercing.
Article
Chemistry, Physical
Natalia Voronina, Konstantin Koester, Jun Ho Yu, Hee Jae Kim, Min-Gi Jung, Hun-Gi Jung, Kug-Seung Lee, Payam Kaghazchi, Seung-Taek Myung
Summary: The effect of Ru substitution on the structure and electrochemical properties of P2-type Na0.67CoO2 was investigated. The first-discharge capacities of Na0.67CoO2 and Na-0.6 [Co0.78Ru0.22]O-2 materials were 128 and 163 mAh g(-1) (23.5 mA g(-1)), respectively. The rate capability was improved due to the electro-conducting nature of Ru doping. Operando X-ray diffraction analysis showed that Na0.67CoO2 did not undergo a phase transition, while the Na-0.6[Co0.78Ru0.22]O-2 material underwent a P2-OP4 phase transition during desodiation.
ADVANCED ENERGY MATERIALS
(2023)
Review
Electrochemistry
Hyunyoung Park, Yongseok Lee, Wonseok Ko, Myungeun Choi, Bonyoung Ku, Hobin Ahn, Junseong Kim, Jungmin Kang, Jung-Keun Yoo, Jongsoon Kim
Summary: Sodium-ion (Na-ion) batteries and potassium-ion (K-ion) batteries have emerged as promising candidates for next-generation secondary battery systems due to their cost-effectiveness and similar reaction mechanism to lithium-ion batteries. However, the challenges lie in their sluggish ionic kinetic and excessive volume change of the cathode material, caused by a larger ionic radius. Extensive research has been conducted to achieve high electrochemical properties, such as large reversible capacity, high power capacity, and long life. This review provides comprehensive information on the cathode material studies for Na-ion and K-ion batteries, compares their electrochemical properties with Li-ion batteries, and discusses future research directions, challenges, and prospects.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
Jun Tae Kim, Hyeon-Ji Shin, A-Yeon Kim, Hyeonseong Oh, Hun Kim, Seungho Yu, Hyoungchul Kim, Kyung Yoon Chung, Jongsoon Kim, Yang-Kook Sun, Hun-Gi Jung
Summary: This study proposes a method for improving the performance of all-solid-state batteries by synthesizing controlled sulfide solid electrolyte materials and their simple coating process. The results show that the coated materials exhibit excellent Li-ion conductivity and suppress cathode degradation reactions, enabling high discharge capacity and long cycle life.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yongseok Lee, Jungmin Kang, Jinho Ahn, Wonseok Ko, Hyunyoung Park, Seokjin Lee, Sangyeop Lee, Jung-Keun Yoo, Jongsoon Kim
Summary: In this study, the conversion properties of Cu(PO3)(2) as a cathode material for Li rechargeable batteries were enhanced through amorpholization and carbon-mixing. The amorphorized Cu(PO3)(2)/C composite exhibited higher reversible capacity and average operation voltage compared to crystalline Cu(PO3)(2)/C composites. The excellent power capability and cyclability of the amorphorized Cu(PO3)(2)/C composite were attributed to the enhanced kinetics of the conversion reaction in Cu(PO3)(2). The reversible conversion-reaction mechanism of Cu(PO3)(2) in a Li-cell system was also demonstrated through various experimental measurements.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
