Article
Chemistry, Multidisciplinary
Sung Yul Lim, Santiago Martin, Guohua Gao, Yibo Dou, Soren Bredmose Simonsen, Jens Oluf Jensen, Qingfeng Li, Kion Norrman, Shao Jing, Wenjing Zhang
Summary: The expedited conversion of O-2 to H2O with minimal amounts of Pt is crucial for the wide applicability of PEM fuel cells. Developing a process for catalyst management is essential to avoid unnecessary catalyst loss while enhancing Pt utilization, catalytic activity, and durability. The fabrication of self-standing nanofiber electrodes using electrospinning simplifies the operation of cell devices and reduces Pt loss, showing excellent performance due to the synergistic interaction between Pt-Co and Co-N-x nanoparticles.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jadranka Milikic, Nikola Nikolic, Diogo M. F. Santos, Daniele Maccio, Adriana Saccone, Mabkhoot Alsaiari, Mohammed Jalalah, M. Faisal, Farid A. Harraz, Yizhao Li, Abu Bakr Nassr, Igor Pasti, Biljana Sljukic
Summary: Platinum-dysprosium (Pt-Dy) alloys prepared by the arc melting technique were evaluated as potential electrodes for the oxygen reduction reaction (ORR) in alkaline media. The Pt40Dy60 electrode with a lower Pt content showed higher ORR activity and lower oxygen evolution reaction (OER) activity compared to the alloy with a higher Pt content.
Article
Chemistry, Physical
Oliver Lorenz, Alexander Kuehne, Martin Rudolph, Wahyu Diyatmika, Andrea Prager, Jurgen W. Gerlach, Jan Griebel, Sara Winkler, Andriy Lotnyk, Andre Anders, Bernd Abel
Summary: Understanding the reaction pathways for the hydrogen oxidation reaction (HOR) and the oxygen reduction reaction (ORR) is crucial for designing electrodes for solid acid fuel cells (SAFCs). By investigating Pt electrodes of different thicknesses, it was found that the thickness influences the reaction pathways for HOR and ORR.
Article
Chemistry, Physical
Mohsin Muhyuddin, Ariel Friedman, Federico Poli, Elisabetta Petri, Hilah Honig, Francesco Basile, Andrea Fasolini, Roberto Lorenzi, Enrico Berretti, Marco Bellini, Alessandro Lavacchi, Lior Elbaz, Carlo Santoro, Francesca Soavi
Summary: Metal-nitrogen-carbons (M-N-Cs) are reliable substitutes for platinum-group-metals (PGMs) for oxygen reduction reaction (ORR), and can be economically produced by utilizing waste biomass as a low-cost carbon source. In this study, electrocatalysts derived from lignin-derived activated char were fabricated and characterized. The results showed that the metal phthalocyanine-functionalized activated char exhibited defect-rich architecture and various nitrogen-containing active moieties, leading to appreciable ORR activity in both acidic and alkaline conditions. Moreover, the integrated L_FeMn cathode electrocatalyst demonstrated promising performance in both PEMFC and AEMFC, with a peak power density of 261 mW cm-2 at -577 mA cm-2.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Sara Paydar, Jin Peng, Liwen Huang, Quan Shi, Nabeela Akbar, Quazi Arif Islam, Akbar Muhammad, Yueming Xing, Jung-Sik Kim, Yan Wu
Summary: In this study, two-dimensional LACO nanosheets coated with LAO layer were found to enhance the performance of intermediate-temperature fuel cells significantly. The LAO coating not only improves ionic conductivity, but also enhances the chemical stability and device performance of LACO. The heterostructure with the built-in local electric field accelerating mechanism provides a novel approach for developing high-performance intermediate-temperature fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Ziwei Dong, Tian Xia, Qiang Li, Liping Sun, Lihua Huo, Hui Zhao
Summary: Dual alkaline earth-substituted Pr0.94Ba1-2xSrxCaxCo2O5+delta perovskites are investigated as cathodes for intermediate-temperature solid oxide fuel cells. Incorporating Sr2+ and Ca2+ into the lattice leads to a phase transformation from tetragonal to simple cubic perovskite structure. The perovskite catalysts exhibit enhanced electrocatalytic activity due to improved electrical conductivity, oxygen surface exchange, and ionic diffusion rates. The Pr0.94Ba0.6Sr0.2Ca0.2Co2O5+delta cathode shows reduced area-specific resistance and delivers high power density and stability in fuel cell operation.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
L. Navarrete, C. Hannahan, J. M. Serra
Summary: The effect of B-site substituted cations on the stability and electrochemical performance of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite was investigated. The presence of these substituted cations improved stability by preventing the formation of detrimental phases and reducing the formation of carbonates. Symmetrical cell testing showed that the Sc-substituted material mixed with GDC had the lowest polarization resistance and was chosen as the cathode for the full cell construction. The composite electrode exhibited encouraging power density and stability.
SOLID STATE IONICS
(2022)
Article
Chemistry, Physical
Mariana C. O. Monteiro, Akansha Goyal, Pricilla Moerland, Marc T. M. Koper
Summary: This study investigates how the cation identity and concentration affect the kinetics of the hydrogen evolution reaction on platinum and gold electrodes. Weakly hydrated cations favor HER on gold at low overpotentials, while strongly hydrated cations exhibit higher activity in more alkaline pH conditions. The inhibition of HER by weakly hydrated cations is observed on platinum even at lower alkalinity and concentrations, suggesting a stronger interaction between platinum and metal cations.
Article
Chemistry, Physical
Muhammad Faisal Jamil, Emre Bicer, Begum Yarar Kaplan, Selmiye Alkan Gursel
Summary: High Pt loading with improved performance and operational longevity is important in PEMFC. A novel electrophoretic deposition (EPD) method was used to fabricate Pt nanoparticles on reduced graphene oxide (rGO) supported carbon paper for PEMFC electrodes, achieving high ECSA value and Pt utilization efficiency at optimized Pt loading. The EPD technique showed viability, ease in handling, and reproducibility, leading to enhanced fuel cell performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Vicente Galvan, Bharat Shrimant, Chulsung Bae, G. K. Surya Prakash
Summary: In recent years, direct alkaline fuel cells have seen a rapid performance increase due to improvements in the anion exchange membrane and oxygen reduction reaction electrocatalysts. Research has shown that changing the cation structures of anion exchange ionomers plays a significant role in methanol oxidation reactions on PtRu/C catalysts. Additionally, the use of a poly(terphenylene) membrane and anode containing anion exchange ionomers can achieve high power densities with low catalyst loading.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Shiyi Luo, Rui Yang, Yuanjing Meng, Kristina Maliutina, Manish Singh, Te-Wei Chiu, Liangdong Fan
Summary: In this work, a one-step low temperature sintering technology was proposed to prepare doped ceria electrolyte-based solid oxide fuel cells (SOFCs) by adding 3 mol% of Li2O sintering aid. Super low temperature sintering allows the direct application of nanoporous Ni-based cermet anode and hierarchical SrNb0.1Fe0.9O3 cathode with improved catalytic activities, which improves SOFC efficiency.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Multidisciplinary
Yanmin Hu, Mengzhao Zhu, Xuan Luo, Geng Wu, Tingting Chao, Yunteng Qu, Fangyao Zhou, Rongbo Sun, Xiao Han, Hai Li, Bin Jiang, Yuen Wu, Xun Hong
Summary: Efficient and highly stable catalysts for the oxygen reduction reaction are essential for long-term operation of proton exchange membrane fuel cells. The coplanar Pt-carbon nanomeshes synthesized in this study exhibit excellent activity and stability in fuel cell tests, with peak power density of 1.21 W cm(-2) and current density of 0.360 A cm(-2) at 0.80 V in the H-2/O-2 cell. Density-functional theory analysis suggests that the increased vacancy formation energy of Pt atoms in coplanar Pt/C NMs helps restrain Pt dissolution and aggregation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Energy & Fuels
Muhammad Tawalbeh, Rana Muhammad Nauman Javed, Amani Al-Othman, Fares Almomani
Summary: Biofuel cells are a novel technology for the production of potable water/electricity and self-powered biosensors. However, they suffer from drawbacks such as short lifespan and difficulty in optimizing operating conditions, leading to low power densities and reduced efficiencies. The use of nanomaterials in bio-electrode construction has shown promising improvements in performance, particularly carbon-based nanostructures.
Article
Chemistry, Multidisciplinary
Liying Wang, Yuliang Wang, Zhangnan Li, Tianyang Li, Ruyu Zhang, Jing Li, Baijun Liu, Zhongyuan Lv, Weiwei Cai, Shuhui Sun, Wei Hu, Yunfeng Lu, Guangshan Zhu
Summary: This study incorporates a phosphoric acid (PA)-doped porous aromatic framework (PAF-6-PA) into poly[2,2'-(p-oxydiphenylene)-5,5'-(benzimidazole)] (OPBI) to fabricate novel PAF-6-PA/OPBI composite high-temperature proton-exchange membranes (HT-PEMs) through solution-casting. The PAF-6-PA/OPBI exhibits optimal proton conductivity and peak power density at 200°C.
ADVANCED MATERIALS
(2023)
Article
Energy & Fuels
Kensaku Kodama, Takahisa Suzuki, Kazuma Shinozaki, Ryosuke Jinnouchi
Summary: Ionomers are used in fuel cells to enhance proton conduction, but their adsorption onto Pt catalysts can deteriorate their catalytic activity and oxygen transport properties. Recent analytical studies have focused on the Pt/ionomer interface and have led to the development of new materials to mitigate ionomer adsorption. However, challenges remain for their application in fuel cells.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Electrochemistry
Masahiro Nagao, Kazuyo Kobayashi, Yuta Yamamoto, Togo Yamaguchi, Akihide Oogushi, Takashi Hibino
Article
Chemistry, Multidisciplinary
Kazuyo Kobayashi, Masahiro Nagao, Takashi Hibino
Article
Electrochemistry
Takashi Hibino, Kazuyo Kobayashi, Masahiro Nagao, Yuta Yamamoto
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2016)
Article
Multidisciplinary Sciences
Peiling Lv, Takenori Ito, Akihide Oogushi, Kensaku Nakashima, Masahiro Nagao, Takashi Hibino
SCIENTIFIC REPORTS
(2016)
Article
Electrochemistry
Masahiro Nagao, Kazuyo Kobayashi, Peiling Lv, Shinya Teranishi, Takashi Hibino
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2017)
Article
Electrochemistry
Takashi Hibino, Kazuyo Kobayashi, Peiling Lv, Masahiro Nagao, Shinya Teranishi, Toshiyuki Mori
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2017)
Article
Electrochemistry
Takashi Hibino, Kazuyo Kobayashi, Masahiro Nagao, Shinya Teranishi
Article
Chemistry, Physical
Takashi Hibino, Kazuyo Kobayashi, Masaya Ito, Masahiro Nagao, Mai Fukui, Shinya Teranishi
APPLIED CATALYSIS B-ENVIRONMENTAL
(2018)
Article
Chemistry, Multidisciplinary
Takashi Hibino, Kazuyo Kobayashi, Masaya Ito, Ojang Ma, Masahiro Nagao, Mai Fukui, Shinya Teranishi
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Multidisciplinary Sciences
Masaya Ito, Tetsuya Hori, Shinya Teranishi, Masahiro Nagao, Takashi Hibino
SCIENTIFIC REPORTS
(2018)
Article
Chemistry, Physical
Tetsuya Hori, Qiang Ma, Kazuyo Kobayashi, Masahiro Nagao, Shinya Teranishi, Takashi Hibino
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Masahiro Nagao, Kazuyo Kobayashi, Tetsuya Hori, Yaorong Li, Takashi Hibino
Article
Engineering, Environmental
Tetsuya Hori, Kazuyo Kobayashi, Shinya Teranishi, Masahiro Nagao, Takashi Hibino
Article
Chemistry, Physical
Yaorong Li, Masahiro Nagao, Kazuyo Kobayashi, Yongcheng Jin, Takashi Hibino
Article
Chemistry, Multidisciplinary
Takashi Hibino, Kazuyo Kobayashi, Peiling Lv, Masahiro Nagao, Shinya Teranishi
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2017)
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)