Article
Multidisciplinary Sciences
Hanul Min, Do Yoon Lee, Junu Kim, Gwisu Kim, Kyoung Su Lee, Jongbeom Kim, Min Jae Paik, Young Ki Kim, Kwang S. Kim, Min Gyu Kim, Tae Joo Shin, Sang Il Seok
Summary: By introducing an interlayer between the electron-transporting and perovskite layers in perovskite solar cells, researchers have successfully enhanced charge extraction and transport from the perovskite, leading to higher power conversion efficiency and fewer interfacial defects. The coherent interlayer allowed the fabrication of devices with a certified efficiency of 25.5%, which maintained about 90% of its initial efficiency even after continuous light exposure for 500 hours. The findings provide guidelines for designing defect-minimizing interfaces in metal halide perovskites and electron-transporting layers.
Article
Biochemistry & Molecular Biology
Nitin Ralph Pochont, Yendaluru Raja Sekhar, Kuraganti Vasu, Rajan Jose
Summary: In this study, a more air-stable metal oxide, nitrogen-doped titanium dioxide (TiO2:N), was explored as a replacement for polymeric hole transport layer (HTL) in perovskite solar cells (PSCs). Numerical simulations showed that by optimizing the absorber layer thickness and defect density gradient, high power conversion efficiency can be achieved.
Article
Chemistry, Physical
Tinghuan Yang, Chuang Ma, Weilun Cai, Shiqiang Wang, Yin Wu, Jiangshan Feng, Nan Wu, Haojin Li, Wenliang Huang, Zicheng Ding, Lili Gao, Shengzhong (Frank) Liu, Kui Zhao
Summary: In this study, a 2D/3D heterostructure was formed in perovskite solar cells using amidino-based Dion-Jacobson 2D perovskite, which resulted in high efficiency and stability. Time-resolved optical diagnostics revealed that the 2D perovskite assisted the nucleation and growth of 3D perovskite during film formation, reducing defects and voids for efficient charge transport. The planar perovskite solar cells with 2D/3D heterostructures achieved efficiencies of 24.9% and 22.3% on rigid and flexible substrates, respectively, which are the highest among all 2D/3D composite solar cells. The stability of the cells was also improved, with 97% of the original efficiency retained after 1,000 hours of storage for rigid cells and 92% for flexible cells after 3,000 bending cycles.
Article
Chemistry, Physical
Qingbo Wei, Zhangwen Ye, Yixuan Gao, Nannan Wang, Lina Feng, Qingxia Zhao, Xiufang Hou, Lingxing Zan, Feng Fu, Dong Yang
Summary: This study demonstrates the use of phenethylammonium iodide (PEAI) to passivate defects in perovskite films, leading to a significant decrease in trap density and prolonged charge lifetime. The passivation strategy resulted in improved photovoltaic performance and stability of perovskite solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Energy & Fuels
Razieh Teimouri, Sajad Mehrvarz, Ali Ebrahimi, Mohammadreza Kolahdouz, Mahdi Darab
Summary: In this study, high-quality and uniform perovskite films with different FA content were synthesized using spin coating and solvent techniques. The effects of different FA content on the performance of solar cells were analyzed through device simulation. It was found that the planar solar cell with a positive band gap grading of Cs-0.05(FA(0.87)MA(0.13))(0.95)Pb(I0.83Br0.17)(3) achieved the highest conversion efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Chia-Hsun Hsu, Ka-Te Chen, Ling-Yan Lin, Wan-Yu Wu, Lu-Sheng Liang, Peng Gao, Yu Qiu, Xiao-Ying Zhang, Pao-Hsun Huang, Shui-Yang Lien, Wen-Zhang Zhu
Summary: Tantalum-doped titanium oxide thin films grown by plasma enhanced atomic layer deposition show reduced crystallinity, lower resistivity, and improved performance as electron transport layer in perovskite solar cells compared to undoped films. The presence of tantalum introduces oxygen vacancies defects and shifts the valance band position, beneficial for band alignment engineering in solar cell applications.
Article
Chemistry, Multidisciplinary
Ching-Ho Tien, Wei-Cheng Lin, Lung-Chien Chen
Summary: This study investigates the effects of different additives on the performance of perovskite solar cells. It is found that cesium can stabilize the perovskite phase, while chlorine can increase the size and crystallinity of the perovskite crystals, thereby improving the overall device performance. Additionally, modifying the interface between the hole transport layer and the perovskite layer can further enhance the photovoltaic characteristics of the perovskite solar cells.
Article
Energy & Fuels
Kai Oliver Brinkmann, Tim Becker, Florian Zimmermann, Cedric Kreusel, Tobias Gahlmann, Tobias Haeger, Thomas Riedl
Summary: This paper analyzes and explains the root cause of the high EQE values, finding that the high refractive index of the perovskite absorber and the optical properties of the transparent electrode strongly affect the transmittance of light and the spectral position of the peak.
Article
Energy & Fuels
Luyao Yan, Hao Huang, Peng Cui, Shuxian Du, Zhineng Lan, Yingying Yang, Shujie Qu, Xinxin Wang, Qiang Zhang, Benyu Liu, Xiaopeng Yue, Xing Zhao, Yingfeng Li, Haifang Li, Jun Ji, Meicheng Li
Summary: The fabrication of perovskite solar cells in ambient air is of interest, but the materials are unstable in the presence of moisture. Yan et al. show that guanabenz acetate salt eliminates vacancy defects that trigger perovskite degradation, enabling 25% efficiency devices to be fabricated in air.
Review
Chemistry, Multidisciplinary
Yu Zou, Yuping Gao, Yongsheng Liu
Summary: This review presents the preparation methods for 2D/3D hybrid perovskites, emphasizing the crucial role of organic spacers. By selecting appropriate functional groups in organic spacers, different types of 2D/3D perovskite heterojunctions can be formed.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Energy & Fuels
Luyao Yan, Hao Huang, Peng Cui, Shuxian Du, Zhineng Lan, Yingying Yang, Shujie Qu, Xinxin Wang, Qiang Zhang, Benyu Liu, Xiaopeng Yue, Xing Zhao, Yingfeng Li, Haifang Li, Jun Ji, Meicheng Li
Summary: The fabrication of perovskite solar cells in ambient air has the potential for industrialization, but moisture can cause degradation and reduce efficiency. Researchers have discovered that guanabenz acetate salt can eliminate vacancy defects and prevent the hydration of perovskite, resulting in high-quality film formation in ambient air.
Article
Chemistry, Multidisciplinary
Qiang Fu, Mingqian Chen, Qiaohui Li, Hang Liu, Rui Wang, Yongsheng Liu
Summary: By using a selenophene-based spacer, researchers have successfully developed stable and efficient 2D RP perovskite solar cells. They achieved efficient electron extraction and transport by optimizing the perovskite film and using a transport layer. The study shows that the selenophene-based spacer significantly improves the conversion efficiency and stability of 2D RP perovskite solar cells.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Elaine Teixeira Veiga, Silvia Leticia Fernandes, Carlos Frederico de Oliveira Graeff, Andre Sarto Polo
Summary: The study focused on the preparation of TiO2 compact layers using the Layer-by-Layer technique for perovskite solar cells, showing that optimal thickness and a balance between electrical resistance and electron recombination can enhance cell performance.
Article
Materials Science, Multidisciplinary
Dongjie Wang, Zheling Zhang, Guisheng Zhu, Xiaoling Zhang, Jian Xiong, Jian Zhang
Summary: In this study, the use of aluminum and indium co-doped titanium dioxide as compact layers in carbon-based mesoscopic perovskite solar cells demonstrated significant improvement in device performance, with an efficiency increase of over 15% compared to pristine titanium dioxide.
Article
Chemistry, Physical
Tian Hou, Meng Zhang, Wenjing Yu, Xin Wang, Zhengying Gu, Qian Chen, Lan Lan, Xiaoran Sun, Yuelong Huang, Bolin Zheng, Xu Liu, Martin A. Green, Xiaojing Hao
Summary: Gas-quenching with TMSO enables the fabrication of high-quality FA(0.9)Cs(0.1)PbI(3) perovskite films without the use of MA cation. The technique regulates intermediate films and results in superior stability in MA-free perovskite devices without any passivation treatment. The PSCs fabricated without MA and Br additives exhibit a power conversion efficiency of 21.3% and demonstrate promising potential for scalable manufacturing of high-efficiency MA-free PSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Physics, Applied
Nobuko Onozawa-Komatsuzaki, Daisuke Tsuchiya, Shinichi Inoue, Atsushi Kogo, Toshiya Ueno, Takurou N. N. Murakami
Summary: In this study, a nonhalogenated solvent-soluble HTM, SF62, was synthesized and successfully used in PSCs, resulting in higher power-conversion efficiency and enhanced stability compared to doped Spiro-OMeTAD-based ones.
APPLIED PHYSICS EXPRESS
(2023)
Article
Chemistry, Physical
Atsushi Kogo, Takurou N. Murakami
Summary: Copper(I) thiocyanate (CuSCN) is a robust hole-transport material for perovskite solar cells, but the low crystallization of CuSCN limits its power conversion efficiency. This study focused on the humidity conditions during the aging process of CuSCN-based PSCs and found that aging in humid air with 70% relative humidity resulted in better performance (efficiency; 10.6%) compared to lower humidity (5.9%) due to improved crystallinity of CuSCN layers. These findings provide insights into improving the fabrication process of CuSCN-based PSCs for higher stability and efficiency.
Editorial Material
Chemistry, Physical
Zhanglin Guo, Ajay Kumar Jena, Tsutomu Miyasaka
ACS ENERGY LETTERS
(2023)
Article
Energy & Fuels
Seri Lee, Gyu Min Kim, Tsutomu Miyasaka, Se Young Oh
Summary: It is found that phenethylamine (PEA) halides (X) coated on perovskite (PVK) films are effective passivating layers in perovskite solar cells (PSCs), but the stability issues with PEA halides (PEAX), especially in the presence of Spiro-OMeTAD, have hindered their practical use. This study reports the negative effect of PEAX on PSCs and proposes a method to overcome the stability issue by employing poly(methyl methacrylate) (PMMA) at the PVK/PEABr interface to form dual PMMA/PEABr interlayers. The resulting PSCs exhibit higher power conversion efficiencies (PCEs) and enhanced stability due to the retention of dipole moments.
Article
Chemistry, Multidisciplinary
Liang Wang, Qingqing Miao, Dandan Wang, Mengmeng Chen, Huan Bi, Jiaqi Liu, Ajay Kumar Baranwal, Gaurav Kapil, Yoshitaka Sanehira, Takeshi Kitamura, Tingli Ma, Zheng Zhang, Qing Shen, Shuzi Hayase
Summary: The photoelectric properties of nontoxic Sn-based perovskite make it a promising alternative to toxic Pb-based perovskite. It has superior photovoltaic performance compared to other Pb-free counterparts, but the facile oxidation of Sn2+ to Sn4+ hinders its stability and performance. Inserting a thin layer of Sn metal at the surfaces of the perovskite layer significantly decreases the levels of Sn4+ and trap densities, leading to improved power conversion efficiency of 14.31% and operational stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Physics, Applied
Huan Bi, Mengmeng Chen, Liang Wang, Zheng Zhang, Chao Ding, Gaurav Kapil, Shahrir Razey Sahamir, Yoshitaka Sanehira, Ajay Kumar Baranwal, Takeshi Kitamura, Guozheng Shi, Qing Shen, Shuzi Hayase
Summary: Due to the oxidation of GeI2 by DMSO, it is challenging to obtain high-quality films using the conventional DMSO/DMF solvent for Sn/Ge perovskite. We have reported the fabrication of MASn(0.5)Ge(0.5)I(3) perovskite solar cells (PSCs) using a simple spin-coating technique. It was found that the combination of triethanolamine (TEA) and N-methyl pyrrolidone (NMP) could improve the stability of the precursor and prevent the oxidation of GeI2. The precursor solution with TEA/NMP/DMF resulted in high-quality perovskite films. The PSCs achieved a power conversion efficiency of 2.18%, demonstrating the feasibility of fabricating Sn/Ge PSCs using a conventional solution process.
APPLIED PHYSICS EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
Yuto Komazawa, Shiro Uchida, Takurou N. Murakam, Atsushi Kogo
Summary: To enhance the photovoltaic performance of perovskite solar cells, LiSCN was doped into CuSCN hole-transport layers. The LiSCN-doped CuSCN showed a dense and flat surface morphology and improved crystallinity and electrical conductivity. The power conversion efficiency of the solar cells was increased from 6.68% to 9.00% with LiSCN doping of CuSCN.
Article
Physics, Applied
Yuto Komazawa, Shiro Uchida, Takurou N. Murakami, Atsushi Kogo
Summary: The post-treatment of perovskite solar cells with CuSCN hole-transport layers to enhance their photovoltaic performance was investigated. The crystallinity and uniformity of CuSCN layers were improved through recrystallization caused by oleylamine (OA) treatment. Additionally, the adsorption of OA on CuSCN tuned the valence band edge potential and improved hole extraction from perovskite materials. The power conversion efficiency of CuSCN-based perovskite solar cells improved from 8.58% to 11.4%.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Review
Chemistry, Physical
Natalia Belen Correa Guerrero, Zhanglin Guo, Naoyuki Shibayama, Ajay Kumar Jena, Tsutomu Miyasaka
Summary: Silver-bismuth halides, such as AgBiI4, AgBi2I7, Ag2BiI5, and Ag3BiI6, have potential to replace toxic lead in perovskite solar cells due to their suitable band gaps and strong absorption. In this study, researchers successfully fabricated a thin and semitransparent Ag2BiI5 solar cell, achieving a power conversion efficiency of about 2% and an open-circuit voltage of over 800 mV. The cell showed reasonable performance under indoor light intensity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Huan Bi, Jiaqi Liu, Raminta Beresneviciute, Daiva Tavgeniene, Zheng Zhang, Liang Wang, Gaurav Kapil, Chao Ding, Shahrir Razey Sahamir, Yoshitaka Sanehira, Ajay Kumar Baranwal, Takeshi Kitamura, Dandan Wang, Yuyao Wei, Yongge Yang, Dong-Won Kang, Saulius Grigalevicius, Qing Shen, Shuzi Hayase
Summary: This report focuses on the efficiency improvement of wide bandgap lead halide perovskite solar cells (WBG Pb-PVK PSCs) by modifying the hole transporting layer (HTL) with a monolayer to enhance the growth and charge collection of the perovskite film, achieving a high efficiency of 16.52% for the solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Huan Bi, Jiaqi Liu, Zheng Zhang, Liang Wang, Gaurav Kapil, Yuyao Wei, Ajay Kumar Baranwal, Shahrir Razey Sahamir, Yoshitaka Sanehira, Dandan Wang, Yongge Yang, Takeshi Kitamura, Raminta Beresneviciute, Saulius Grigalevicius, Qing Shen, Shuzi Hayase
Summary: This study demonstrates the use of a ferrocene derivative, dibenzoylferrocene (DBzFe), as an additive to enhance the performance and stability of inverted perovskite solar cells (PSCs). The introduction of DBzFe not only reduces defects in the film, but also inhibits ion migration, leading to improved photovoltaic performance and long-term stability of the device.
Article
Chemistry, Physical
Takeshi Kitamura, Liang Wang, Zheng Zhang, Ajay Kumar Baranwal, Gaurav Kapil, Shahrir Razey Sahamir, Yoshitaka Sanehira, Huan Bi, Tingli Ma, Qing Shen, Shuzi Hayase
Summary: This paper reports the use of inorganic hole collectors Nano SnOx as the hole transport layer (HTL) for Sn-PVK-PVs. The Nano SnOx showed higher stability compared to PEDOT:PSS devices and achieved an efficiency of 9.77%.
ACS ENERGY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Ellie Tanaka, Gyu Min Kim, Michal R. Maciejczyk, Ayumi Ishii, Gary S. Nichol, Tsutomu Miyasaka, Neil Robertson
Summary: Hole transport materials (HTMs) based on truxene cores have shown promising properties as candidates for use in perovskite solar cells (PSCs). In this study, a novel HTM named TrxS-2MeOTAD was synthesized and characterized for its suitability in n-i-p planar PSCs. The TrxS-2MeOTAD showed suitable properties and achieved a power conversion efficiency (PCE) of 18.9% in the PSCs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Tomoya Shirasaka, Atsushi Kogo, Setsuko Koura
Summary: BF4-doped poly(3-methylthiophene) (P3MT) was synthesized via electropolymerization and used as a hole transport material for inverted perovskite solar cells. The controlled nanopillar morphology of P3MT allowed for uniform perovskite formation without voids, leading to a conversion efficiency of 11.11%. The P3MT-based cells demonstrated superior stability in ambient air compared to poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid)-based cells.
Article
Materials Science, Multidisciplinary
Ayumi Ishii, Tsutomu Miyasaka
Summary: A novel near-infrared (NIR) detection method based on upconversion (UC) materials is demonstrated in this study, which is necessary in various optical applications. By incorporating high concentrations of erbium (Er) ions in nanoparticles (NPs), the weak light absorption ability of conventional NPs is dramatically improved. The UC emission quantum efficiency of >5% is achieved by suppressing the thermal vibrations that deactivate the UC emission through coating the NP surfaces with inorganic perovskite. This enables the fabrication of a UC-based photodetector with a high responsivity to weak NIR light and a quantum conversion efficiency of 75%.
ADVANCED PHOTONICS RESEARCH
(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)
