Article
Engineering, Electrical & Electronic
Youchang Park, Mohammad Yusuf, Nallal Muthuchamy, Sehwan Song, Sungkyun Park, Jae-Myung Lee, Kang Hyun Park
Summary: This article introduces a simple and cost-effective method for synthesizing Pd-Ni(OH)2 nanocatalysts, which exhibit high performance, excellent durability, and methanol resistance in fuel cells, making them a potential alternative to Pt/C.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Environmental Sciences
Yegeng Sun, Wei Zhang, Qing Wang, Ning Han, Avelino Nunez-Delgado, Yue Cao, Weimeng Si, Fagang Wang, Shaomin Liu
Summary: A mesoporous carbon derived from beancurd was used as a support for Au@Pd@Pt core-shell catalysts, showing higher ORR activity, specific, and mass activities compared to commercial Pt/C catalyst. The sample exhibited excellent durability after 20000 cycles of rapid testing, indicating promising potential for environmental applications.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Thanh Duc Le, Dung Van Dao, Ganpurev Adilbish, Yeon-Tae Yu
Summary: The study demonstrates the advanced electrochemical catalytic activity of octahedral Pt-Ni alloyed catalyst for oxygen reduction reaction (ORR). The electrophoretic deposition (EPD) technique is used to fabricate cost-effective and highly active Pt-Ni alloy/C catalyst electrodes with higher porosity and surface roughness, achieving a superior performance in a single cell test with a maximum power density of 7.16 W/mg(Pt), 28.1% higher than that of the spray-made Pt/C conventional electrode.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Michael J. Dzara, Andres O. Godoy, Madeleine Odgaard, Barr Zulevi, Alexey Serov, Jasna Jankovic, Svitlana Pylypenko
Summary: The study investigates the detailed investigation of commercially available mesoporous nitrogen-functionalized carbon supports and platinum nanoparticles-based ORR catalysts, presenting their physicochemical properties and ORR performance in membrane electrode assemblies. The results demonstrate that carbon supports with engineered morphologies and compositions are a promising platform for producing supports and catalysts with tunable properties for various applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Ndrina Limani, Alice Boudet, Emmanuel Scorsone, Vincent Derycke, Bruno Jousselme, Renaud Cornut
Summary: The challenges in commercializing fuel cell vehicles (FCVs) mainly lie in the electrocatalysis of oxygen reduction reaction (ORR), which is complex and requires rare electrocatalysts. The synthesis of non-precious electrocatalysts with high intrinsic selectivity is crucial, as is the methodology for determining selectivity conclusions. This study demonstrates how the high electrode loadings of a Fe-N-MWCNT catalyst in a rotating ring disc electrode (RRDE) prevent access to all of the peroxide produced during ORR. Smaller amounts of the same catalyst were deposited on a boron-doped diamond (BDD) using a spraying technique and their loading was determined by atomic force microscopy (AFM). Investigation using scanning electrochemical microscopy (SECM) revealed higher peroxide production and lower selectivity. This finding has crucial implications for future ORR investigations, considering the harmful effect of peroxide on the catalyst.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
B. Ruiz-Camacho, A. Medina-Ramirez, R. Fuentes-Ramirez, R. Navarro, C. Martinez Gomez, A. Perez-Larios
Summary: This study investigates the effect of carbon nanotubes as an alternative support for cathodes in the oxygen reduction reaction in alkaline medium. The results show that Pt/CNT exhibits better electrocatalytic activity and electrochemical stability compared to Pt/C and Pt-Ag/CNT.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Xinqun Zhang, Jiaqi Wang, Yang Zhao
Summary: The oxygen reduction reaction (ORR) is a crucial catalytic process for hydrogen fuel cells, biofuel cells, and metal-air cells. Platinum group metal (PGM) catalysts, especially platinum and palladium, are the most active catalysts for ORR. However, the price and reserves of Pt/Pd are major concerns for commercial applications. This review discusses the kinetics, mechanisms, factors affecting catalytic performance, recent progress, and future prospects of Pt/Pd-based catalysts for ORR.
Article
Chemistry, Physical
Liliya Dunyushkina, Anastasiya Pavlovich, Adelya Khaliullina
Summary: The study investigated the effect of nitric acid treatment on the electrochemical performance of porous Pt electrodes deposited on YSZ electrolyte, revealing a significant reduction in polarization resistance for the treated electrodes. It was assumed that the enhancement in performance was due to the adsorption of NOx species promoting oxygen dissociation and transport, improving the electrode activation process.
Article
Chemistry, Physical
Vera Bogdanovskaya, Inna Vernigor, Marina Radina, Vladimir Andreev, Oleg Korchagin
Summary: The research investigated the effects of O, N, and P atom modifications on carbon nanotubes and their resulting impact on the performance of platinum catalysts. The modified Pt/CNT catalysts showed improved electrochemical properties and catalytic activity, particularly in the ORR in alkaline electrolytes. The Pt/CNTHNO3+N and Pt/CNTHNO3+NP catalysts were identified as the most promising candidates for cathode materials in alkaline media.
Article
Electrochemistry
Yongbing MA, hirokata KAJIMA, Yuta SHIMASAKI, Takaaki NAGAI, Teko W. NAPPORN, Hiroaki WADA, Kazuyuki KURODA, Yoshiyuki KURODA, Akimitsu ISHIHARA, Shigenori MITSUSHIMA
Summary: In this study, Pt catalysts with different weight percentages were deposited on Nb-doped macroporous Ti4O7 using coaxial arc plasma deposition method. The slight agglomeration of Pt during accelerated durability tests led to good durability. The different weight percentages of Pt showed varying morphologies and durability, with agglomeration aiding stability.
Review
Chemistry, Multidisciplinary
Qi Sun, Xin-Hao Li, Kai-Xue Wang, Tian-Nan Ye, Jie-Sheng Chen
Summary: Oxygen reduction reaction (ORR) is the rate-determining step in fuel cells and metal-air batteries. Pt-based catalysts, especially Pt/C catalysts, are the most promising electrode materials. However, carbon corrosion and Pt deterioration limit their performance. Non-carbon supports can improve stability and catalytic activity by avoiding direct contact between Pt and carbon materials. Metal oxides show excellent stability but lack electrical conductivity, while metal carbides and nitrides possess both stability and conductivity. This review summarizes the applications, mechanisms, and properties of non-carbon supported Pt catalysts in ORR, with emphasis on anchoring and synergetic effects.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Ye Peng, Ja-Yeon Choi, Tobias Furstenhaupt, Kyoung Bai, Yi Zhang, Dustin Banham
Summary: A rapid method utilizing 3-electrode techniques is provided for evaluating the accessibility of Pt within Pt/C catalysts for PEMFCs, which will accelerate the development of next-generation catalysts with optimal Pt distribution within the carbon support.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Applied
Chunyu Hao, Jie Gan, Yueqiang Cao, Wei Luo, Wenyao Chen, Gang Qian, Xinggui Zhou, Xuezhi Duan
Summary: By tailoring the surface properties of carbon nanotubes, this study achieved size-dependent methanol oxidation reaction activity in the preparation of Pt catalysts, with the 1.9 nm Pt catalyst on CNT-600-O support showing the highest peak current density. Insights into Pt size effects and active sites could guide the fabrication of highly efficient Pt-based MOR catalysts.
Article
Chemistry, Physical
B. Ruiz-Camacho, J. A. Palafox-Segoviano, P. J. Perez-Diaz, A. Medina-Ramirez
Summary: Pt supported on various materials were synthesized using sonication without special capping agent or thermal treatment, and evaluated for oxygen reduction reaction (ORR) in acid medium. The highest dispersion of Pt particles was observed on the samples supported on GO materials, with Pt/GO-C composite exhibiting significantly higher specific and mass activity for ORR compared to conventional Pt/C catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Henrike Schmies, Nina Bengen, Julia Mueller-Huelstede, Olayinka Ahmed Ibitowa, Peter Wagner, Michael Wark
Summary: In this study, activated sawdust was used as a sustainable carbon support for Pt-based catalysts in the oxygen reduction reaction (ORR) of PEM fuel cells. The surface and structural properties of the carbon material were systematically analyzed through various characterization methods. The ORR activity and stability of the catalysts were compared to a commercial Pt/C catalyst and the impact of support modification on ORR performance was discussed.
Article
Materials Science, Multidisciplinary
Lili Zheng, Qingsong Hua, Xichao Li, Meishuan Li, Yuhai Qian, Jingjun Xu, Jianmin Zhang, Zongmin Zheng, Zuoqiang Dai, Hongxin Zhang, Tiezhu Zhang
Article
Chemistry, Physical
Lili Zheng, Qingsong Hua, Xichao Li, Meishuan Li, Yuhai Qian, Jingjun Xu, Zuoqiang Dai, Hongxin Zhang, Tiezhu Zhang, Junwei Wu
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Physical
Xichao Li, Lili Zheng, Zhao Zang, Tao Liu, Fengting Cao, Xiaolin Sun, Shimei Sun, Quanhai Niu, Yuxiang Lu, Takeo Ohsaka, Jianfei Wu
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Materials Science, Multidisciplinary
Xichao Li, Yuhai Qian, Tao Liu, Fengting Cao, Zhao Zang, Xiaolin Sun, Shimei Sun, Quanhai Niu, Jianfei Wu
JOURNAL OF MATERIALS SCIENCE
(2018)
Article
Chemistry, Multidisciplinary
Fengting Cao, Tao Liu, Wenyan Si, Xichao Li, Shimei Sun, Xiaolin Sun, Quanhai Niu, Takeo Ohsaka, Jianfei Wu
ADVANCED MATERIALS INTERFACES
(2018)
Article
Electrochemistry
Tao Liu, Xiaolin Sun, Shimei Sun, Quanhai Niu, Hui Liu, Wei Song, Fengting Cao, Xichao Li, Takeo Ohsaka, Jianfei Wu
ELECTROCHIMICA ACTA
(2019)
Article
Energy & Fuels
Dong Wang, Lili Zheng, Xichao Li, Guangchao Du, Zhichao Zhang, Yan Feng, Longzhou Jia, Zuoqiang Dai
Article
Energy & Fuels
Dong Wang, Lili Zheng, Xichao Li, Guangchao Du, Yan Feng, Longzhou Jia, Zuoqiang Dai
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2020)
Article
Chemistry, Physical
Lili Zheng, Xichao Li, Wanbing Guan, Meishuan Li, Shouli Wei, Yuhai Qian, Jingjun Xu, Zuoqiang Dai, Tiezhu Zhang, Hongxin Zhang
Summary: (Ti,Nb)(3)SiC2 exhibits high oxidation resistance and electrical conductivity in simulated anode reducing atmosphere, making it a promising candidate for intermediate-temperature solid oxide fuel cell (IT-SOFC) interconnects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Xichao Li, Lili Zheng, Yuhai Qian, Jingjun Xu, Meishuan Li
Summary: The oxidation of Ti3AlC2 foils at 1100°C in air is thickness-dependent, with thicker samples exhibiting slower oxidation and longer lifetime. The diffusion rate of Al is high during oxidation, leading to the formation of continuous Al2O3 scale on thicker samples. The mechanism of breakaway oxidation of Ti3AlC2 is discussed in detail.
Article
Chemistry, Physical
Xichao Li, Luzhou Liu, Yang Yang, Quanhai Niu, Lili Zheng, Xiaolin Sun, Jianfei Wu
Summary: In this study, Li-rich layered oxide materials were investigated for their potential use as high-energy-density cathode materials for lithium-ion batteries. It was found that increasing Ni content in the materials restrained the electrochemical activation of the Li2MnO3 component, leading to reduced capacity of the materials. Additionally, the increased Ni3+/Ni2+ ratio and reduced electrochemical activation of Li2MnO3 helped stabilize the layered structure and suppress the layered-to-spinel phase transformation, resulting in mitigated voltage decay and improved rate performance in high-Ni-content LLOs. The results provide insights for the design of novel Li-rich layered cathode materials for enhanced electrochemical performances.
Article
Materials Science, Ceramics
Qiang Cheng, LiLi Zheng, XiChao Li, Bin Xu, MingYue Sun, Jing Shi, ZuoQiang Dai, TieZhu Zhang, HongXin Zhang
Summary: Ti3SiC2 ceramic and SUS430 stainless steel were successfully joined using Ni interlayers and solid diffusion bonding technique. It was found that the Ni foil effectively prevented inter-diffusion and reaction between Ti3SiC2 and SS, and the good transition in the joint contributed to the sound joining. The interface in the joints adjacent to SS matrix was composed of gamma solid solution and a small amount of sigma intermetallic compound.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Tao Yin, Longzhou Jia, Xichao Li, Lili Zheng, Zuoqiang Dai
Summary: Inconsistent monomer batteries in a battery pack can lead to over-discharge and pose safety risks. High-rate aging and over-discharge result in decreased battery capacity, increased temperature, and micro short-circuit. Furthermore, these conditions cause degradation of the separator, damage to positive and negative materials, and uneven deposition, which increase the risk of thermal runaway and short-circuit in the battery.
Article
Chemistry, Multidisciplinary
Longzhou Jia, Dong Wang, Tao Yin, Xichao Li, Liwei Li, Zuoqiang Dai, Lili Zheng
Summary: This study investigated the thermal stability of high nickel battery materials and the thermal runaway process of lithium ion batteries. The findings include the decomposition temperatures of anode and cathode materials, the maximum temperatures during thermal runaway, and the temperature difference between inside and outside the battery. The study provides valuable insights into the thermal properties and safety issues of lithium ion batteries.
Article
Chemistry, Physical
Dong Han, Zongchen Zhao, Wei Wang, Hongjie Wang, Huanlei Wang, Lili Zheng, Jing Shi, Xichao Li
Summary: NH2-MIL-125 metal-organic frameworks (MOFs) were used to optimize poly (ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs), resulting in improved ionic conductivity and electrochemical stability in the prepared PEO-LiTFSI-10% NH2-MIL-125 MOF electrolyte (PEM10). The novel electrolyte membrane showed enhanced performance in terms of specific discharge capacity, rate capability, and stable cycling for all-solid-state batteries.
SUSTAINABLE ENERGY & FUELS
(2022)
