Article
Energy & Fuels
Kai Yang, Hongzhe Ni, Xinming Du, Tianen Shui, Hongcheng Shen, Jingmei Xu, Yao Liu, Chenyang Li, Yepeng Gao, Zhe Wang
Summary: By preparing and analyzing the properties of poly (aryl ether ketone) based cross-linked anion exchange membranes, the study confirmed that the membrane has excellent conductivity and stability in alkaline fuel cells, providing new possibilities for the development of alkaline fuel cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Balakondareddy Sana, Anupam Das, Tushar Jana
Summary: The development of efficient alkaline anion exchange membranes (AAEMs) is important. Cross-linking the polybenzimidazole chains (PyPBI) can improve the physical properties of the polymer, especially the hydroxide ion conductivity, alkaline stability, and mechanical stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Iyappan Arunkumar, Ramasamy Gokulapriyan, Venkitesan Sakthivel, Ae Rhan Kim, Min Suk Oh, Jae Young Lee, Seonyeob Kim, Sunyoup Lee, Dong Jin Yoo
Summary: This study demonstrates the improvement of electrochemical and physicochemical characteristics of anion-exchange membranes for fuel cell applications by incorporating carboxylic acid-functionalized graphene nanofibers as fillers. The addition of these fillers enhances the electrochemical performance and stability of the membranes, resulting in increased hydroxide conductivity and peak power density. This research highlights the importance of enhancing the properties of commercial membranes for anion-exchange membrane fuel cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Balakondareddy Sana, Anupam Das, Manju Sharma, Tushar Jana
Summary: This study focused on the influence of ion yielding alkyl group structure on the improvement of the alkaline stability and hydroxide conductivity of the alkaline anion exchange membrane (AAEM). Among all the membranes developed, PyPBI alkylated with butyl iodide showed the highest ion exchange capacity and maximum hydroxide conductivity. The results highlighted the significant importance of alkylated moieties structure on the alkaline stability of AAEM.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Chemical
Xiaojuan Zhang, Jiaqian Guo, Xiaomeng Chu, Changqing Fang, Yingda Huang, Lei Liu, Nanwen Li
Summary: By grafting hydrophilic and flexible polyethylene glycol chains, imidazolium-type anion exchange membranes with excellent film-forming ability and high ion conductivity were successfully prepared, showing promising performance in alkaline fuel cells.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Wei Yuan, Lingping Zeng, Shangkun Jiang, Caili Yuan, Qian He, Jianchuan Wang, Qiang Liao, Zidong Wei
Summary: Anion exchange membrane fuel cells (AEMFCs) have the advantage of low cost, but the use and commercialization of anion exchange membranes (AEMs) have always been challenging. This study successfully prepared AEMs and ionomers with non-rotatable rigid carbazole group and piperidinium group, and demonstrated their excellent performance in conductivity, mechanical strength, and stability. Moreover, the fuel cell based on these materials showed outstanding peak power density and long-term stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Zhuoyu Yin, Yingzhen Wu, Benbing Shi, Chao Yang, Yan Kong, Yiqin Liu, Hong Wu, Zhongyi Jiang
Summary: A study was conducted on an alkaline stable polymer membrane, aiming to improve its stability through modifications in the polymer backbone, cationic groups, and linkage structure. The membrane exhibited good hydroxide conductivity and tensile strength under high alkaline conditions and maintained a high level of performance after long-term immersion.
SOLID STATE IONICS
(2022)
Article
Engineering, Chemical
Ji Pan, Hairong Zhu, Huixing Cao, Bowen Wang, Junliang Zhao, Zhe Sun, Feng Yan
Summary: This study synthesized AEMs with different cationic functional groups and found that AEMs with di-cations exhibit superior performance in terms of water uptake, swelling ratio, alkaline stability, and ionic conductivity compared to AEMs with mono-cations. Mathematical models were established for MD simulations, and the results obtained were in good qualitative agreement with experimental data, providing insight into the solvation, transport properties, and alkaline stability of AEMs.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Fu-Heng Zhai, Qing-Qing Zhan, Yun-Fei Yang, Ni-Ya Ye, Rui-Ying Wan, Jin Wang, Shuai Chen, Rong-Huan He
Summary: This study introduces a deep learning protocol to predict the OH- conductivity of polymer membrane based on its structure, achieving 99.7% accuracy in classifying different functional cationic groups and providing a powerful tool for designing AEMs with predictable conductivity. The prediction errors for different types of AEMs are within a reasonable range, demonstrating the effectiveness of the proposed protocol in assisting researchers in AEMs preparation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Electrochemistry
Smitha S. Patil, V Madhura, Irshad Kammakakam, M. H. Halashankar Swamy, K. Sadashiva Patil, Zhiping Lai, H. N. Anil Rao
Summary: In this study, the integration of dual hydroxide conductors in polymeric membranes was explored to enhance the ionic conductivity and achieve high-power output at reduced material costs. The results demonstrated that the presence of dual hydroxide conductors improved the thermal, mechanical, and dimensional stabilities of the membranes, and resulted in a higher power density for the fuel cell.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Chemical
Andrit Allushi, Thanh Huong Pham, Patric Jannasch
Summary: This study focused on developing anion exchange membranes (AEMs) with high alkaline stability and hydroxide conductivity by functionalizing fluorene units with dual pairs of quaternary piperidinium cations. The AEMs with bisPip side chains demonstrated superior conductivity and alkaline stability compared to AEMs with monoPip cations per fluorene unit, highlighting the advantage of locally concentrating the cations in the polymer structure.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
Shuchun Yu, Pei Zhou, Jinkai Hao, Yuanyuan Zhou
Summary: This paper introduces the research progress of functionalized graphene oxide (GO) in improving the performance of anion exchange membranes. It specifically analyzes the doping amount and functionalization methods of functionalized GO on the ion conductivity of composite membranes. It is found that GO functionalized by macromolecular polymer brushes endows the composite membrane with higher ion conductivity and shows great potential and application prospect in improving the comprehensive performance of the composite membrane. However, the ion transport mechanism and enhancement mechanism of functionalized GO still need to be further studied.
Article
Materials Science, Multidisciplinary
Iris Agami, Nansi Gjineci, Songlin Li, Simcha Srebnik, Dario R. Dekel, Charles E. Diesendruck
Summary: In recent years, the development of anion-exchange membranes (AEMs) for anion-exchange membrane fuel cell (AEMFC) applications has been rapidly growing due to their numerous advantages over mainstream proton-exchange membrane fuel cells. However, a major challenge in the development of practical AEMs is the low chemical stability of the AEM quaternary ammonium (QA) functional groups in the strongly alkaline and dry environment during AEMFC operation. This study investigates the impact of polymer chain folding on the chemical stability of the QA groups and finds that folded chains exhibit significantly improved stability compared to linear chains, providing a simple method for preparing chemically stable AEMs with different QA groups and polymer backbones.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Juanjuan Han, Wenfeng Song, Xueqi Cheng, Qiang Cheng, Yangyang Zhang, Chifeng Liu, Xiaorong Zhou, Zhandong Ren, Meixue Hu, Tianshu Ning, Li Xiao, Lin Zhuang
Summary: The study highlights the impact of different types of cations on AEMs performance, emphasizing the need to select suitable backbones to match the cations for improved membrane performance.
Review
Materials Science, Multidisciplinary
Zhengwang Tao, Chenyi Wang, Xiaoyan Zhao, Jian Li, Michael D. Guiver
Summary: Solid alkaline fuel cells with anion exchange membranes (AEMs) have been a focus in renewable energy cells due to their high electrode activity, potential for non-precious metal catalysts, and lower fuel purity requirements. The past decade has seen significant progress in AEM designs, with various cationic structures being explored, though challenges remain in improving hydroxide conductivity and durability. Future research directions include addressing these challenges.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Materials Science, Coatings & Films
SeokHee Lee, SungPil Woo, Nitul Kakati, Youna Lee, YoungSoo Yoon
SURFACE & COATINGS TECHNOLOGY
(2016)
Article
Chemistry, Physical
Nitul Kakati, Kangsoo Lee, Young Soo Yoon
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Materials Science, Composites
Jatindranath Maiti, Nitul Kakati, Sung Pil Woo, Young Soo Yoon
COMPOSITES SCIENCE AND TECHNOLOGY
(2018)
Review
Energy & Fuels
Seok Hee Lee, Sung Pil Woo, Nitul Kakati, Dong-Joo Kim, Young Soo Yoon
Article
Chemistry, Multidisciplinary
Padmini Basumatary, Dimpul Konwar, Young Soo Yoon
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2019)
Article
Materials Science, Multidisciplinary
Yvonne Ligaya F. Musico, Nitul Kakati, Marc Francis M. Labata, Joey D. Ocon, Po-Ya Abel Chuang
MATERIALS CHEMISTRY AND PHYSICS
(2019)
Article
Chemistry, Physical
Padmini Basumatary, Un Ho Lee, Dimpul Konwar, Young Soo Yoon
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Padmini Basumatary, Dimpul Konwar, Young Soo Yoon
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Chemistry, Physical
Nitul Kakati, Guangfu Li, Po-Ya Abel Chuang
Summary: This study systematically investigated the influence of Nafion ionomer in Ni/C catalyst ink, catalyst loading on the glassy carbon electrode surface, and KOH and urea concentrations on UOR activity. A standard preparation method and benchmark protocol were proposed to obtain reliable UOR catalyst performance. The findings provide insights into designing and evaluating UOR catalysts for advancing urea electrolysis technology.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Young Soo Yoon, Padmini Basumatary, Mehmet Emin Kilic, Yoo Lim Cha, Kwang-Ryeol Lee, Dong-Joo Kim, Dimpul Konwar
Summary: A novel nanosized GaPtMnP alloy anchored on N-doped multiwall carbon nanotubes was developed as an efficient electrocatalyst for ethanol fuel cells, exhibiting high activity and stability. It delivered mass and specific activities approximately 13- and 8-fold higher than Pt/C, with long-term stability and durability even after 3000 cycles. The fuel cell based on this catalyst showed a peak power density approximately fourfold higher than Pt/C, maintaining constant performance after multiple startup-shutdown cycles.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Dimpul Konwar, Padmini Basumatary, UnHo Lee, Young Soo Yoon
Summary: The newly developed PdFe/SnFeP@rGO catalyst shows low cost, high efficiency, and good stability, which can be used to improve the power density and durability of fuel cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Multidisciplinary Sciences
Jatindranath Maiti, Nitul Kakati, Sung Pil Woo, Young Soo Yoon
Article
Electrochemistry
Nitul Kakati, Jatindranath Maiti, Kang Soo Lee, Balasubramanian Viswanathan, Young Soo Yoon
ELECTROCHIMICA ACTA
(2017)
