Article
Electrochemistry
Yuyu Liu, Zi Wang, Linjie Li, Shufang Gao, Dingshan Zheng, Xiangxiang Yu, Qingfeng Wu, Qin Yang, Desheng Zhu, Wenxing Yang, Yan Xiong
Summary: This paper presents the fabrication of a novel photoanode based on a semiconductor composite and tests its performance in QDSSCs. The experimental results show that the new photoanode exhibits better charge transfer and reaction rates, as well as higher photocurrents and power conversion efficiencies. After interface modification, the cell efficiency is further improved.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Jagriti Tyagi, Himanshu Gupta, L. P. Purohit
Summary: Different photoanodes were prepared on fluorine-doped tin oxide conductive glass substrate using the doctor blade method, with CdS quantum dots deposited by SILAR. The ZnO/TiO2 photoanode achieved higher efficiency compared to bare TiO2 in the QDSSC, with improved electron transport and overall performance. The IPCE for ZnO/TiO2 electrode was approximately 46%, showing enhanced capabilities for photon-to-current conversion.
Review
Chemistry, Physical
Akash S. Rasal, Sudesh Yadav, Anil A. Kashale, Ali Altaee, Jia-Yaw Chang
Summary: This review discusses the factors influencing the performance stability of QDSSCs and provides insights into the mechanisms causing degraded performances. It also presents cutting-edge strategies for improving the overall performance stability of QDSSCs.
Article
Materials Science, Multidisciplinary
Yanli Shi, Xiaowen Zhou, Yuan Lin, Jianguang Jia
Summary: This paper investigates the influence of surface passivation on the performance of quantum dot sensitized solar cells (QDSSCs). The results show that using a ZnS/ZnSe double passivation layer can effectively inhibit charge recombination and significantly improve the conversion efficiency of the cells.
Article
Chemistry, Physical
S. Liu, R. Fan, Y. Zhao, M. Yu, L. Li, Q. Li, B. Liang, W. Zhang
Summary: In this study, a relatively less toxic CISSe quantum dot was prepared by an organic high-temperature hot injection method for use in QD-sensitized solar cells. Through Sn doping and ZnS passivation, the electron collection efficiency was improved and charge recombination was inhibited, resulting in a power conversion efficiency of 6.7% for the QDSSC.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Physical
Dong-Jin Yun, Hyemin Ra, Jung-Min Kim, Seongho Jeon, Sung Hoon Park, Minsu Seol, Seunghyup Lee
Summary: ZnO nanorod arrays offer high surface area, but face challenges in charge collecting efficiency. This study synthesizes patterned ZnO nanorod arrays using a hydrothermal method and deposits an Ru metal layer using radio frequency sputtering, revealing the combination of Ru metal and ZnO nanorod arrays as a lower cost alternative with great potential.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Maryam Ostadebrahim, Hossein Dehghani
Summary: In this study, the influence of ZnS, ZnSe, and ZnSxSe1-x layers in CdSexS1-x quantum dot based solar cells was systematically investigated, with ZnS and ZnS0.2Se0.8 identified as the optimal choices. The designed QDSSCs with these layers showed a significantly higher efficiency compared to bare QDSSCs.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Bandana Ranamagar, Isaac Abiye, Fasil Abebe
Summary: The Rhodamine-6G derivative Rhd and its metal complexes with aluminum and chromium ions were synthesized and characterized using UV-vis and fluorescence spectroscopy. Dye-sensitized solar cells (DSSCs) were fabricated with Rhd and the metal complexes, and their solar-to-electric power efficiencies were determined through current-density measurements and Electrochemical Impedance Spectroscopy (EIS). The Rhd and Cr3+-sensitized solar cell showed the highest solar to electric power efficiency at 0.16%.
Article
Nanoscience & Nanotechnology
Tea-Yon Kim, Byung Su Kim, Jong Gyu Oh, Seul Chan Park, Jaeyoung Jang, Thomas W. Hamann, Young Soo Kang, Jin Ho Bang, Sixto Gimenez, Yong Soo Kang
Summary: By applying a TiO2(B) surface passivation layer (SPL) on TiO2/QD (PbS and CdS), electron conductivity was improved, collection efficiency was increased, and a record high photocurrent density was achieved, suggesting a promising strategy for the development of high-performance photoelectrochemical devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
D. Vinoth Pandi, V. Saraswathi, M. R. Venkatraman, N. Muthukumarasamy, S. Agilan, D. Velauthapillai, K. Brindhadevi, A. Pugazhendhi
Summary: PbS quantum dots and PbS quantum dots-sensitized ZnO nanostructures with rod-like shape were successfully synthesized. The prepared PbS quantum dots exhibited significant visible light absorption, and the light absorption of PbS quantum dots-sensitized ZnO nanorods was higher than that of bare ZnO nanorods. The uniform development of rod-like ZnO nanostructures with deposition of PbS quantum dots on the surface was observed from electron microscope images. The solar cells made using PbS quantum dots-sensitized ZnO nanorods achieved a power conversion efficiency of 1.2%.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Mostafa Roudgar-Amoli, Amin Alizadeh, Ebrahim Abedini, Zahra Shariatinia
Summary: To achieve high-performance DSSCs, new and effective photoelectrode materials, namely CuCoO2 and ZnO, were successfully synthesized through a hydrothermal process and heat treatment of ZIF-8, respectively. The composite heterostructures of CuCoO2/ZnO demonstrated improved photovoltaic properties, making them promising photoanodes for DSSCs. The physicochemical characteristics and photovoltaic performance of the fabricated materials were thoroughly studied and discussed. CuCoO2/ZnO (0.1 : 1) showed the best performance among all cells, with a PCE of 6.27% and enhanced Voc, Jsc, FF, and IPCE.
Article
Electrochemistry
Meng Wang, Zhuoyin Peng, Zuoqiu Ning, Jianlin Chen, Wei Li, Jian Chen, Dong Huang
Summary: The second spin-coating process increased the CuInS2 quantum dot loading amount on the photoelectrodes and improved charge separation properties. Moderate quantum dot loading amount formed a net connection structure between nanowires, providing more paths for charge transfer.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Haibin Wang, Moana Desbordes, Yun Xiao, Takaya Kubo, Keishi Tada, Takeru Bessho, Jotaro Nakazaki, Hiroshi Segawa
Summary: The heterojunction iodide ligand PbS quantum dot (QD) and ZnO nanowire (NW) solar cells demonstrate high charge separation efficiency, high external quantum efficiency in visible and infrared regions, and stability performance even after 500 days of storage without encapsulation. The PbS QD capping layer acts as an effective electron-blocking layer (EBL), contributing to the overall performance of the solar cells. The interdigitated architecture concept presents a promising strategy for achieving highly efficient and stable colloidal QD-based solar cells, with potential extensions to various organic and inorganic hybrid solar cells.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Meng Wang, Zhuoyin Peng, Dong Huang, Zuoqiu Ning, Jianlin Chen, Wei Li, Jian Chen
Summary: In this study, a second electrochemical deposition process was used to increase the quantum dot loading amount of TiO2 nanodendrite based quantum dot sensitized solar cells, resulting in improved optical absorption property and stable charge separation property. The current density of the solar cells was significantly enhanced with the increasing quantum dot loading amount. Moreover, the photovoltaic conversion efficiency of the CuInS2 quantum dot sensitized TiO2 nanodendrite solar cells was increased from 3.91% to 4.58% after a 30-minute second electrochemical deposition process.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Jingxuan Chen, Donglin Jia, Rongshan Zhuang, Yong Hua, Xiaoliang Zhang
Summary: A highly orientated PQD solid is achieved by precursor engineering and chemical stripping treatment. The highly ordered PQDs promote charge-carrier transport and reduce nonradiative recombination by decreasing surface trap states. This study provides a feasible approach for constructing high-performance optoelectronic devices.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jiahao Xi, Jifeng Yuan, Jiuyao Du, Xiaoqin Yan, Jianjun Tian
Summary: In this study, an effective method to achieve a low trap density and high electron mobility electron transport layer (ETL) based on SnO2 nanocrystals is proposed. The addition of potassium trifluoroacetate (KTFA) is able to passivate the oxygen vacancies in SnO2 nanocrystals, reducing traps and boosting electron collection. Furthermore, surface modification shifts the conduction band of SnO2 nanocrystals close to that of perovskite, facilitating electron transfer. As a result, the perovskite solar cells exhibit high efficiency and negligible hysteresis.
Article
Chemistry, Multidisciplinary
Mengqi Zhang, Chenghao Bi, Yuexing Xia, Xuejiao Sun, Xingyu Wang, Aqiang Liu, Shuyu Tian, Xinfeng Liu, Nora H. de Leeuw, Jianjun Tian
Summary: In this study, a water-driven synthesis strategy was used to obtain size-homogenized and strongly confined deep-blue CsPbBr3 quantum wells (QWs). The QWs exhibited remarkable stability and a high photoluminescence quantum yield of 94%. Light-emitting diodes based on the QWs achieved an external quantum efficiency of 1% and state-of-the-art brightness for perovskite QW-based LEDs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Engineering, Environmental
Jie Tu, Jiaqi Ding, Guoqiang Xi, Hangren Li, Qianqian Yang, Jianjun Tian, Linxing Zhang
Summary: In this study, stable multifunctional multiferroic Bi0.5Sm0.5FeO3 (BSFO) double-perovskite epitaxial thin films were successfully synthesized by regulating the deposition temperature. The BSFO thin films exhibited robust ferroelectric polarization and excellent photoresponse, and its switchable ferroelectric photovoltaic feature demonstrated the potential for ferroelectric storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Wenxuan Du, Chunyan Cheng, Jianjun Tian
Summary: Doping a strong Lewis acid into a Lewis base polymer to form an acid-base adduct hole-transport layer can improve the efficiency of InP-based QLEDs.
Article
Chemistry, Inorganic & Nuclear
Jiaqi Ding, Hangren Li, Guoqiang Xi, Jie Tu, Jianjun Tian, Linxing Zhang
Summary: In this study, the researchers achieved increased tetragonality and reduced bandgaps in tetragonal-like phase BFO-based films through chemical strain. The tetragonality increased up to a large c/a of 1.239, and the bandgap decreased to 1.45 eV from 2.21 eV. This paper provides a new strategy for regulating the optical band gap of BFO and reveals its underlying mechanism.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Jiuyao Du, Jifeng Yuan, Jiahao Xi, Fei Huang, Jianjun Tian
Summary: In this study, 1-ethyl-3-methylimidazolium acetate ([EMIM]Ac) ionic liquid was introduced to passivate the surface defects of perovskite films, improving the performance and stability of metal halide perovskite solar cells. The carbonyl groups of [EMIM]Ac coordinate with the uncoordinated lead ions on the perovskite surface, reducing nonradiative recombination and improving working stability. The power conversion efficiency of the solar cell increased from 16.95% to 19.29% with [EMIM]Ac treatment. This surface passivation method using an ionic liquid may have significant implications for the development and practical application of perovskite solar cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jifeng Yuan, Jianjun Tian
Summary: Researchers have developed an in-situ ligand exchange strategy to improve the surface chemistry of CsPbI3 quantum dots, resulting in higher power conversion efficiency and long-term durability.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Aqiang Liu, Chenghao Bi, Jing Li, Mengqi Zhang, Chunyan Cheng, David Binks, Jianjun Tian
Summary: Here, an in situ photoluminescence (PL) system was developed to monitor the nucleation and growth of perovskite nanocrystals and achieve highly confined and monodispersed quantum dots (QDs) with an average size of 3.4 nm. Pure-blue (460 nm wavelength) CsPbBr3 QDs with near unity PL quantum yield and a narrow size distribution (small size dispersion of 9.6%) were produced. Light-emitting diodes (LEDs) based on these QDs showed narrow electroluminescence with a full width at half-maximum of 20 nm and a high color purity of 97.3%. The LEDs also exhibited a high external quantum efficiency of 10.1%, maximum luminance of 11,610 cd m-2, and a continuous operation lifetime of 21 h at the initial luminance of 102 cd m-2, which represents the state-of-the-art for pure-blue perovskite LEDs.
Article
Multidisciplinary Sciences
Qianqian Yang, Jingcong Hu, Yue-Wen Fang, Yueyang Jia, Rui Yang, Shiqing Deng, Yue Lu, Oswaldo Dieguez, Longlong Fan, Dongxing Zheng, Xixiang Zhang, Yongqi Dong, Zhenlin Luo, Zhen Wang, Huanhua Wang, Manling Sui, Xianran Xing, Jun Chen, Jianjun Tian, Linxing Zhang
Summary: Atomic-scale ferroelectrics with a layered structure of stabilized bismuth oxide film through samarium bondage have been developed. The thickness of the film can reach 1 nanometer and it can be grown on various substrates using a cost-effective chemical solution deposition method. The thin films exhibit standard ferroelectric hysteresis and relatively large remanent polarization. First-principles calculations confirm the structure and suggest that these films are lone pair-driven ferroelectric materials. The design of ultrathin ferroelectric films holds great potential for atomic-scale electronic devices manufacturing.
Article
Acoustics
Guanhua Hu, Xiaotong Li, Rina Su, Mirco Corazzin, Xuemin Liu, Lu Dou, Lina Sun, Lihua Zhao, Lin Su, Jianjun Tian, Ye Jin
Summary: This study evaluated the effect of ultrasound-assisted treatment on the properties of sheep bone collagen (SBC). The ultrasound-assisted treatment increased the collagen extraction rate and resulted in collagen with superior functional properties and foaming/emulsion properties. The study also identified potential activities of SBC, such as antioxidant, enzyme inhibitory, and anticancer effects.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Hongyuan Dong, Shuyu Tian, Xuejiao Sun, Ivan S. Mukhin, Regina M. Islamova, Gang Li, Jianjun Tian
Summary: Ceramic-like CsPbBr3@SiO2 nanocrystals with high photoluminescence quantum yield (98.7%), green purity (90%), and narrow full width at half maximum (22 nm) were successfully achieved by a solid-phase reaction process. The SiO2 shell provides long-term working and excellent thermal cycling stability. Ba2+ doping and halogen vacancies passivation result in red-shift emission and conform to the Rec.2020 standard. White light-emitting diodes were achieved by preparing red, green, and blue ceramic-like perovskite nanocrystals.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Physics, Applied
Xudong Liu, Jie Tu, Hangren Li, Jianjun Tian, Linxing Zhang
Summary: This paper introduces double perovskite ferroelectric thin films as a new material system with diverse composition and structure, providing new possibilities for the development of ferroelectric thin films. The ordered double perovskite ferroelectric thin films exhibit excellent ferroelectric, dielectric, magnetic, and optical properties, with potential applications in photovoltaic cells, information memory, and spintronic and photoelectric devices. However, complex internal physical mechanisms and difficult preparation conditions hinder its further development. This paper reviews the characterization methods and synthesis conditions affecting the ordering of double perovskite ferroelectrics, and presents the advances and challenges in various areas related to this material system.
APPLIED PHYSICS REVIEWS
(2023)
Article
Chemistry, Physical
Zhuoping He, Qianqian Yang, Guoqiang Xi, Jie Tu, Jianjun Tian, Linxing Zhang
Summary: The first measurement of ferroelectric hysteresis loop in pure anatase-phase titanium dioxide was reported, demonstrating ferroelectric-like behavior in a-TiO2 epitaxial thin films prepared by chemical solution deposition method. The quality of epitaxial films was confirmed by synchrotron based X-ray diffraction and reciprocal space mapping. The results showed that the polarization of a-TiO2 film with a thickness of 14.5 nm could reach approximately 0.42 mu C/cm2. Atomic force microscopy (PFM) revealed ferroelectric-like behavior in the 7.5 nm a-TiO2 film, with the PFM polarization switch maintained for over 100 minutes. The origin of this behavior is attributed to strain and vacancy-induced distortion, while the electrochemical effect has a significant influence on the intrinsic ferroelectric performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Xinrui Cheng, Guoqiang Xi, Yue-Wen Fang, JiaQi Ding, Jianjun Tian, Linxing Zhang
Summary: Polarization and optical properties of BiFeO3-based ferroelectric films are regulated by both chemical composition and interlayer design. The improvement of ferroelectricity and bandgap is achieved through these methods. The remanent polarization is enhanced from 0.2 mu C/cm2 to 73.8 mu C/cm2 and the band gap is reduced from 2.42 eV to 2.23 eV. The optimal films show improved polarization and band gap, with a short-circuit current density of 89.0 nA and open circuit voltage of 0.412 V.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Multidisciplinary Sciences
Qianqian Yang, Jingcong Hu, Yue-Wen Fang, Yueyang Jia, Rui Yang, Shiqing Deng, Yue Lu, Oswaldo Dieguez, Longlong Fan, Dongxing Zheng, Xixiang Zhang, Yongqi Dong, Zhenlin Luo, Zhen Wang, Huanhua Wang, Manling Sui, Xianran Xing, Jun Chen, Jianjun Tian, Linxing Zhang
Summary: We developed a bismuth oxide film with a layered structure that can stabilize the ferroelectric state at a thickness of 1 nanometer. The film can be grown on different substrates using a cost-effective chemical solution deposition technique. The thin films, ranging from 1 to 4.56 nanometers, exhibited a standard ferroelectric hysteresis loop and relatively large remanent polarization. First-principles calculations confirmed the film's structure and suggested it to be a lone pair-driven ferroelectric material. The design of ultrathin ferroelectric films holds great potential for atomic-scale electronic device manufacturing.
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)