Article
Nanoscience & Nanotechnology
Shaowei Zhang, Yunan Jiang, Hairui Han, Yihang Li, Changrong Xia
Summary: This study proposes a Ni and F co-doping strategy to improve the electrocatalysts for CO2 reduction reaction (CO2RR). The results show that F-doping and Ni-Fe exsolution enhance CO2 adsorption and reaction rate, while reducing interfacial polarization resistance. The direct CO2 electrolysis in the SOEC achieves a high current density and stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Denghe Gao, Shan Ji, Vladimir Linkov, Rongfang Wang
Summary: This study developed a bifunctional electrode based on nickel and iron, and demonstrated the importance of the interaction between the substrate and active material for efficient water electrolysis. The hierarchal structure significantly enhanced the catalytic activity for hydrogen and oxygen evolution reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
R. Visvanichkul, P. Puengjinda, T. Jiwanuruk, S. Peng-Ont, N. Sirimungkalakul, W. Ngampuengpis, T. Sornchamni, P. Kim-Lohsoontorn
Summary: A solid oxide electrolysis cell supported by nickel-iron alloy foam has been successfully fabricated, achieving a hydrogen production rate under high temperature and pressure conditions. However, performance degradation was observed due to the delamination of the anode under high current density operation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Amit Kumar Chaurasia, Prasenjit Mondal
Summary: The study demonstrates the high efficiency of microbial electrolysis cells using electrodeposited cathodes in both treatment of sugar industry wastewater and hydrogen recovery, showcasing the potential for real-time industrial effluent treatment and biohydrogen production near ambient atmospheric conditions.
Article
Chemistry, Multidisciplinary
Yongkang Han, Yingchuan Zhang, Yike Lei, Dongdong Xiao, Jie Ni, Weiguang Lin, Pingwen Ming, Cunman Zhang, Qiangfeng Xiao
Summary: To address the issues of Ni-rich NCM, Al (CF3SO3)(3) was proposed as a solid electrolyte additive to regulate the CEI in single-crystalline NCM811. The facile oxidation of CF3SO3- and subsequent reactions with reactive species from NCM811 and electrolyte lead to the formation of a robust sandwich CEI film containing sulfur and aluminum species. This CEI film not only prevents electrolyte decomposition but also alleviates the formation of inactive rock-salt phase on NCM811 surface, resulting in a high-capacity retention of 91.5% after 200 cycles under 0.5 C.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Naoya Fujiwara, Hironori Nagase, Shohei Tada, Ryuji Kikuchi
Summary: In the experiment of high-efficiency steam electrolysis at intermediate temperatures, the key stability issues of proton-conducting solid acid electrolytes were found to be the migration of electrolyte and the design of the anode. The study demonstrated that using Pt mesh as an alternative anode could significantly improve stability.
Article
Chemistry, Physical
Sangwon Lee, Jeong Hwa Park, Kang Taek Lee, Young-Wan Ju
Summary: A Ni-Fe fiber anode was designed and fabricated by electrospinning, showing improved anodic activity and resistance to metallic particle coarsening compared to traditional Ni-Fe spherical powder. Single cells using this fiber anode demonstrated higher maximum power densities and lower resistance, suggesting that the introduction of Ni-Fe fiber anode in SOFCs is an effective approach to enhance power generation properties and stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Tianpeng Jiao, Gaopan Liu, Yue Zou, Xuerui Yang, Xiaozhen Zhang, Ang Fu, Jianming Zheng, Yong Yang
Summary: The research reveals that a stable CEI layer formed on the LiNi0.9Co0.05Mn0.05O2 cathode material through the addition of TMSFS multifunctional additive can significantly improve the cycling performance and electrochemical performance of lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Haris Masood Ansari, Adam Stuart Bass, Nabeel Ahmad, Viola Birss
Summary: The study investigates the growth and phase evolution of exsolved metal nanoparticles in Ni-doped La0.3Ca0.70Fe0.7Cr0.3O3-delta perovskite in H-2-N-2 and CO-CO2 environments. It found that exsolution kinetics were rapid in H-2-N-2 and sluggish in CO-CO2, with NPs in CO-CO2 remaining Ni-rich even after extended heat treatment, while those in H-2-N-2 progressed from Ni-rich to Fe-rich phases. These findings suggest the NPs are resistant to coarsening in highly reducing environments and can enhance CO oxidation and CO2 reduction reactions in reversible solid oxide cell applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Chemistry, Physical
Dereje H. Taffa, Danni Balkenhohl, Mandana Amiri, Michael Wark
Summary: This article presents the current research state of using nickel-based metal-organic frameworks (MOFs) as catalyst materials for alkaline electrolysis, discussing strategies for improving catalytic performance and comparing OER activities based on performance metrics. Nickel-based MOFs are demonstrated to have excellent activity and tunability, making them promising catalysts for hydrogen production.
Article
Nanoscience & Nanotechnology
Changyang Liu, Shuting Li, Jianquan Gao, Liuzhen Bian, Yunting Hou, Lijun Wang, Jun Peng, Jinxiao Bao, Xiwen Song, Shengli An
Summary: A low-cost and highly active metallic Fe nanoparticle-decorated Ruddlesden-Popper cathode catalyst is reported for CO2 electrolysis at high temperatures, showing high current density and Faraday efficiency. The improved CO2 dissociative adsorption due to exsolved Fe nanoparticles significantly reduces the polarization resistance for CO2 electrolysis. Additionally, the electrolysis cell exhibits acceptable short-term stability for direct CO2 electrolysis.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Ling Ouyang, Xun He, Yuting Sun, Longcheng Zhang, Donglin Zhao, Shengjun Sun, Yongsong Luo, Dongdong Zheng, Abdullah M. Asiri, Qian Liu, Jingxiang Zhao, Xuping Sun
Summary: A highly active and robust catalyst, RuO2 nanoparticle-decorated TiO2 nanobelt array, has been reported for the hydrogen evolution reaction (HER) in various pH values.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Ceramics
Tatsumi Ishihara, Hackho Kim, Yuiko Inoishi, Junko Matsuda
Summary: Highly porous and uniform sphere shape Fe powder was successfully prepared and used in a solid oxide Fe-air rechargeable battery. The modified Fe powder showed high redox reaction rate and cycle stability.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Bin Qian, Shun Wang, Yifeng Zheng, Qing Ni, Han Chen, Lin Ge, Jian Yang
Summary: Fe-doped La0.75Sr0.2Ca0.05Cr0.5Mn0.5O3 (LSCCMFe5) material exhibits high catalytic activity and stability as a cathode in solid oxide electrolysis cell (SOEC) for converting CO2 into CO, making it a promising candidate for SOEC applications.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Nanoscience & Nanotechnology
Adil Saleem, He Zhu, Muhammad K. Majeed, Rashid Iqbal, Bushra Jabar, Arshad Hussain, M. Zeeshan Ashfaq, Muhammad Ahmad, Sajid Rauf, Jean Pierre Mwizerwa, Jun Shen, Qi Liu
Summary: Current commercial nickel (Ni)-rich cathodes for high-energy lithium (Li) batteries often contain toxic and expensive Mn/Co, which causes issues like transition-metal dissolution and surface degradation. This study compares a Mn/Co-free Ni-rich Li-Ni0.94Fe0.05Cu0.01O2 (SCNFCu) cathode with acceptable electrochemical performance to a Mn/Co-containing cathode. Despite slightly lower discharge capacity, SCNFCu cathode maintains 77% of its capacity after 600 cycles, outperforming the high-Ni LiNi0.9Mn0.05Co0.05O2 (SCNMC) cathode (66%). Fe/Cu ions in the SCNFCu cathode reduce structural disintegration, undesirable reactions, and Li loss. This discovery opens up new possibilities for developing Mn/Co-free cathode materials for next-generation high-energy Li batteries with the flexibility and scalability of SCNFCu.
ACS APPLIED MATERIALS & INTERFACES
(2023)
