Article
Engineering, Chemical
Adriano S. Marques, Roberto M. Faria, Jilian N. Freitas, Ana F. Nogueira
Summary: Spin coating remains the primary choice for deposition in lab-scale perovskite solar cell assembly, with other methods still lagging in device efficiency and perovskite control. The development of a blade-coating route for all layers of perovskite solar cells offers a scalable method for large-area production, with potential improvements in device performance through ink composition tuning.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Zhaohui Yu, Junlei Tao, Jinliang Shen, Zhongzhong Jia, Hua Zhong, Song Yin, Xudong Liu, Mingxuan Liu, Guangsheng Fu, Shaopeng Yang, Weiguang Kong
Summary: Surface defect passivation is crucial for achieving high-efficiency perovskite solar cells. In this study, zwitterionic compounds HETACl and BTACl were introduced for surface passivation by dip coating method. BTACl not only passivated surface defects, but also improved crystallization by healing grain boundaries. The PSCs treated with BTACl achieved a champion efficiency of 20.5% and retained 95% of their initial efficiency after being stored in air for 30 days.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Hongwei Zhu, Bingyao Shao, Jun Yin, Zhongjin Shen, Lijie Wang, Ren-Wu Huang, Bin Chen, Nimer Wehbe, Taimoor Ahmad, Mutalifu Abulikemu, Aqil Jamal, Issam Gereige, Marina Freitag, Omar F. Mohammed, Edward H. Sargent, Osman M. Bakr
Summary: The fabrication of perovskite solar cells through blade coating often leads to more defective films. In this study, a bifunctional molecule, p-aminobenzoic acid (PABA), was used to enhance the barrier to ion migration and promote the formation of defect-reduced, homogeneous films. The PSCs with PABA achieved impressive power conversion efficiencies and maintained high stability under extreme conditions.
ADVANCED MATERIALS
(2023)
Article
Energy & Fuels
Xinwen Zhang, Lening Shen, Pramod Baral, S. N. Vijayaraghavan, Feng Yan, Xiong Gong, He Wang
Summary: This study demonstrates the manufacturing of perovskite solar cells based on FACs using blade coating followed by vacuum quenching method in an ambient environment, and successfully solves the low efficiency issue of the hole transport material, achieving higher efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Energy & Fuels
Do Yeon Heo, Won Jin Jang, Min Ju Jeong, Jun Hong Noh, Soo Young Kim
Summary: This study investigates the effects of different solvents on the efficiency of perovskite solar cells (PSCs) through solution processing techniques. It is found that the efficiency of the PSCs can be significantly improved by using hexane and ethanol as solvents.
Article
Chemistry, Physical
Mazhar Abbas, Muhammad Rauf, Boyuan Cai, Fei Guo, Xiao-Cong Yuan, Tanka Raj Rana, J. Devin Mackenzie, Aung Ko Ko Kyaw
Summary: This study investigates the use of amino acids as passivating dopants for perovskite solar cells, with 3gpa achieving the best results. The addition of 3gpa improves the photovoltaic performance and long-term stability of the cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Mazhar Abbas, Boyuan Cai, Jinlong Hu, Fei Guo, Yaohua Mai, Xiao-Cong Yuan
Summary: The study investigated the passivation effects of four organic pi-conjugated phenylboronic acid molecules on perovskite materials, finding that addition of 3-amino phenylboronic acid (3a) significantly improved the photovoltaic performance of solar devices. Devices treated with 3a showed the best passivation effect, leading to increased open-circuit voltage and power conversion efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yaqing Li, Xiayao Lu, Yantao Mei, Chen Dong, Deepak Thrithamarassery Gangadharan, Kong Liu, Zhijie Wang, Shengchun Qu, Makhsud I. I. Saidaminov, Weifeng Zhang, Furui Tan
Summary: In this study, an organic/inorganic double planar hole transport layer (HTL) is constructed, which achieves a cascade type-II energy level alignment at the perovskite/HTL interfaces and a preferential ohmic contact at NiOx/carbon electrode. This design greatly enhances charge collection while suppressing charge transfer recombination in perovskite solar cells with carbon electrode. Additionally, the planar composite protects perovskite from being corroded by carbon paste, enabling a robust interfacial contact and achieving high efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Sergio Castro-Hermosa, Luana Wouk, Izabela Silva Bicalho, Luiza de Queiroz Correa, Bas de Jong, Lucio Cina, Thomas M. Brown, Diego Bagnis
Summary: Fully printed perovskite solar cells were fabricated in air with all layers except electrodes deposited by blade coating technique. A nanometer-thick printed bathocuproine (BCP) hole blocking buffer was incorporated for the first time, resulting in improved performance. Blade coated BCP films were found to be more homogeneous, smoother, and contributed to better BCP/Ag interface, leading to reduced charge recombination and higher efficiency.
Article
Chemistry, Multidisciplinary
Qiong Liang, Kuan Liu, Mingzi Sun, Zhiwei Ren, Patrick W. K. Fong, Jiaming Huang, Minchao Qin, Zehan Wu, Dong Shen, Chun-Sing Lee, Jianhua Hao, Xinhui Lu, Bolong Huang, Gang Li
Summary: By incorporating ethyl alcohol (EtOH) into perovskite ink, a facile and effective strategy for fabricating high-performance room-temperature blade-coated perovskite solar cells and modules is demonstrated in this work. Real-time perovskite crystallization studies reveal the structural evolutions and phase-transition pathway. The strategy efficiently suppresses nonradiative recombination and improves device efficiency and stability.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Timothy Thornber, Onkar S. Game, Elena J. Cassella, Mary E. O'Kane, James E. Bishop, Thomas J. Routledge, Tarek Alanazi, Mustafa Togay, Patrick J. M. Isherwood, Luis C. Infante-Ortega, Deborah B. Hammond, John M. Walls, David G. Lidzey
Summary: This study explores the feasibility of using ultrasonic spray coating technology to fabricate perovskite solar cells on rigid nonplanar surfaces. The researchers found that devices fabricated on glass substrates held at angles of inclination up to 45 degrees from the horizontal exhibited comparable power conversion efficiencies to those fabricated on horizontal substrates. This study represents the first successful fabrication of rigid curved perovskite solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Pramod Baral, Xinwen Zhang, Kelsey Garden, Nilave Chakraborty, Lening Shen, Zikun Cao, Xiong Gong, Luisa Whittaker-Brooks, He Wang
Summary: Metal halide perovskites show great potential as solar cell materials due to their exceptional optical and electronic properties. This study presents a method for fabricating perovskite thin films using green solvents and blade-coating techniques under ambient conditions. The resulting films exhibit high power conversion efficiencies and excellent stability, making them a promising candidate for commercial perovskite solar cells.
ORGANIC ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Zhiyue Tang, Shurong Wang, Weike Zhu, Liming Ding, Feng Hao
Summary: Researchers have found a non-toxic solvent system (DEF and DMSO) that can dissolve perovskite raw materials and achieve high efficiency in perovskite solar cells (TPSCs). The DEF solvent system results in smaller colloids and larger perovskite grains, leading to improved carrier mobility and suppressed non-radiative recombination. As a result, TPSCs fabricated with DEF showed comparable performance to those fabricated with toxic solvents.
Article
Chemistry, Physical
Felix Lang, Giles E. Eperon, Kyle Frohna, Elizabeth M. Tennyson, Amran Al-Ashouri, Georgios Kourkafas, Juergen Bundesmann, Andrea Denker, Kevin G. West, Louise C. Hirst, Heinz-Christoph Neitzert, Samuel D. Stranks
Summary: This study investigates the potential of an all-perovskite tandem photovoltaic technology for high-specific-power applications, demonstrating its high tolerance to the harsh radiation environment in space. The results show negligible degradation even under high doses of proton irradiation, indicating a fundamentally different origin of radiation damage compared to traditional space PV technologies.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Yifan Xiao, Chuantian Zuo, Jun-Xing Zhong, Wu-Qiang Wu, Liang Shen, Liming Ding
Summary: This review introduces the blade-coating method for preparing large-area films, summarizes recent advances in blade-coated organic solar cells and perovskite solar cells, discusses the effects of blade parameters on the crystal growth of light-harvesting materials, and the limitations and advantages of making high-quality films via blade-coating. Finally, strategies for up-scaling solar cells via blade-coating are proposed.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xabier Rodriguez-Martinez, Sergi Riera-Galindo, Luis Ever Aguirre, Mariano Campoy-Quiles, Hans Arwin, Olle Inganas
Summary: The integration of organic photovoltaic (OPV) modules on greenhouses is a promising approach to meet energy demands and enhance functionality. Optimized donor:acceptor polymer blend can satisfy the optical requirements of crops. Balancing donor:acceptor ratios leads to better performance and stability. Among the tested active layers, polymer:fullerene blends are the most stable and suitable for building-integrated OPV systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Cedric Gonzales, Antonio Guerrero
Summary: By studying the ion migration and silver ion diffusion in ferroelectric thin films, we have revealed the resistive switching mechanism in memristor devices, which provides important insights for the development of artificially intelligent hardware systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Filipe C. Correia, Joana M. Ribeiro, Armando Ferreira, J. Sebastian Reparaz, Alejandro R. Goni, Torben Boll, Adelio Mendes, Carlos J. Tavares
Summary: This study focuses on the Bi doping effect on ZnO and the microstructure changes induced by the co-doping of Bi and Al in ZnO thin films. The results show that the introduction of Bi and Al can significantly reduce the thermal conductivity of ZnO films, with Bi mainly contributing to grain boundary scattering. However, the coexistence of Bi and Al limits further reduction in thermal conductivity due to morphological changes in the film's microstructure. The findings are important for improving thermoelectric efficiency.
Article
Chemistry, Multidisciplinary
Xabier Rodriguez-Martinez, Paula Hartnagel, Sergi Riera-Galindo, Gulzada Beket, Thomas Osterberg, Feng Gao, Thomas Kirchartz, Olle Inganas
Summary: Non-fullerene acceptors have revolutionized indoor organic photovoltaics with high power conversion efficiencies, but transferring this performance to larger-scale prototyping remains challenging. The PM6:IO4Cl blend, a successful indoor OPV photoactive layer, is investigated for its industrial potential, and the thick and semitransparent devices are fabricated in air. Anomalous current-voltage characteristics are observed, with the cathode side generally outperforming the anode side due to a dead layer at the PAL/anode contact interface. Symmetric J-V curves and improved light utilization efficiency are achieved by making the PALs thin enough. Certain all-polymer and polymer:fullerene blends are identified as suitable candidates for thick device up-scaling, and ternary blends show potential in mitigating electrical asymmetry.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Marti Gibert-Roca, Miquel Casademont-Vinas, Quan Liu, Koen Vandewal, Alejandro R. Goni, Mariano Campoy-Quiles
Summary: This work proposes a novel spectral splitting device concept called RAINBOW, which lays various semiconducting junctions with cascading bandgaps side by side to improve the efficiency of organic solar cells. Simulations and experiments show that this geometry can reduce thermalization losses and improve light harvesting, resulting in a 46.6% relative improvement in efficiency compared to the best sub-cell. A working proof-of-concept monolithic device consisting of two sub-cells deposited from solution on the same substrate is successfully fabricated, demonstrating the feasibility and potential of the RAINBOW solar cell concept.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xeniya Rozhkova, Aitbek Aimukhanov, Assylbek Zeinidenov, Vladimir Paygin, Damir Valiev, Juan Bisquert, Antonio Guerrero, Alexander Alexeev, Baurzhan Ilyassov
Summary: PEDOT:PSS is a widely used material for the hole selective layer in organic photovoltaics due to its easy processing and high reproducibility. However, it faces limitations when testing new donor:acceptor systems due to its intrinsic energy levels. In this study, PEDOT:PSS:metal phthalocyanines nanocomposite thin films are formulated and used as the hole transport layer for organic solar cells. The addition of metal phthalocyanines improves the power conversion efficiency of solar cells by reducing resistive losses.
Article
Chemistry, Physical
Mayank Kedia, Monika Rai, Himanshu Phirke, Clara A. Aranda, Chittaranjan Das, Vladimir Chirvony, Stephan Boehringer, Malgorzata Kot, Mahdi Malekshahi Byranvand, Jan Ingo Flege, Alex Redinger, Michael Saliba
Summary: In this study, a nanosecond pulsed ultraviolet laser is used to polish the perovskite thin-film surface, reducing surface defects and improving the photophysical properties. This laser polishing technique achieves a high open circuit voltage of 1.21V and improves the efficiency and stability of the perovskite solar cells.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jose Carlos Perez-Martinez, Mariana Berruet, Cedric Gonzales, Saeed Salehpour, Ali Bahari, Belen Arredondo, Antonio Guerrero
Summary: By screening different metal contacts on halide perovskite memristors, the study reveals that the electrochemical activity of the metals is highly connected with the activation threshold voltage of the memory effect. Reactive metals exhibit redox/capacitive peaks and form charged ions that follow the electrical field, leading to the activation of the memristor. Additionally, pre-oxidized Ag+ ions can significantly reduce the threshold voltage, indicating that no additional electrochemical reaction is needed for activation. This study clarifies the effect of the metal contact and identifies AgI as a promising interfacial layer for low-energy applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Waqas Zia, Clara A. Aranda, Jan Pospisil, Alexander Kovalenko, Monika Rai, Cristina Momblona, Setatira Gorji, Guillermo Munoz-Matutano, Michael Saliba
Summary: This paper presents a detailed investigation of seed and nucleation-assisted growth methods for the inverse temperature crystallization of methyl-ammonium lead bromide single crystals. The study demonstrates that low-temperature seed-assisted growth significantly improves the optical and electrical responses compared to nucleation-assisted growth. The study also highlights that the improved crystallization method has a positive impact on the optical and crystalline properties of the material, as well as the photodetector properties of the crystal.
CHEMISTRY OF MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Jose Carlos Perez-Martinez, Diego Martin-Martin, Gonzalo del Pozo, Belen Arredondo, Antonio Guerrero, Beatriz Romero
Summary: Bias voltage scan rate and mobile ion concentration greatly influence the J-V curves of metal halide perovskite-based memristors. In addition to hysteresis, some J-V curves also exhibit a drop in current known as negative differential resistance. This feature is usually attributed to electrochemical reactions and air exposure, but its origin in devices with low-reactive electrodes is still debated. This work proposes a theoretical model based on ionic-electronic drift-diffusion, shedding light on the processes behind hysteresis and explaining the appearance of negative resistance in memristors with low-reactive contacts and capacitive hysteresis. Experimental J-V curves are presented to validate the model.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Thermodynamics
Kai Xu, Jiali Guo, Grazia Raciti, Alejandro R. Goni, M. Isabel Alonso, Xavier Borrise, Ilaria Zardo, Mariano Campoy-Quiles, Juan Sebastian Reparaz
Summary: We propose a contactless method based on beam-offset frequency-domain thermoreflectance to study in-plane thermal transport. The use of a one-dimensional heat source enhances the sensitivity to in-plane thermal transport and allows for studying materials without the presence of a metallic transducer. We demonstrate the applicability of this method to various materials and show that in-plane heat transport can also be studied on substrates with low thermal diffusivity.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Physical
Juan Bisquert, Cedric Gonzales, Antonio Guerrero
Summary: Solution-processed photodetectors based on halide perovskite semiconductors have attractive properties for applications in lightweight, transparent, flexible, and spectrally selective optical sensors. In this study, the characteristic response of a halide perovskite photodetector was measured and a new model was established to analyze the dominant transient shapes. The model incorporates the basic principles of charge generation, collection, and polarization, as well as a delayed photocurrent mode caused by ionic-electronic interaction phenomena.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Instruments & Instrumentation
Miquel Casademont-Vinas, Marti Gibert-Roca, Mariano Campoy-Quiles, Alejandro R. Goni
Summary: This article introduces a multi-purpose spectrum-on-demand light source (SOLS) that is primarily used for the characterization of photovoltaic materials and devices. SOLS can produce almost any spectrum and offers two types of output, making it suitable for solar cell characterization. Its tunability and spectral shaping capabilities enable its use as both a solar simulator and an external quantum efficiency measuring system.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Materials Science, Multidisciplinary
Nerea Gonzalez-Pato, Xavier Rodriguez Rodriguez, Nicola Pellizzi, Claudia Fasolato, Judith Guasch, Paolo Postorino, Jaume Veciana, Alejandro R. R. Goni, Imma Ratera
Summary: We developed an easy and low-cost method to prepare highly homogeneous electroactive substrates for simultaneous surface-enhanced Raman spectroscopy (SERS) and electrochemical measurements. The substrates were made by depositing a quasi-hexagonal pattern of uniformly distributed gold nanoparticles (AuNPs) on conductive indium tin oxide (ITO) using block-copolymer micellar lithography, followed by electrodeposition of additional gold onto the pre-patterned ITO. The resulting substrates exhibited strong and homogeneous Raman signals and demonstrated good electrochemical performance.
MATERIALS ADVANCES
(2023)
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)
