Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane.
Xin Liu,Yi Li,Jiandang Xue,Weikang Zhu,Junfeng Zhang,Yan Yin,Yan Yin,Yanzhou Qin,Kui Jiao,Qing Du,Bowen Cheng,Xupin Zhuang,Jianxin Li,Michael D. Guiver +13 more
TLDR
Proton conducting channels orthogonal to the plane of composite proton exchange membranes are aligned using a magnetic field for improved fuel cell performance and durability.Abstract:
Proton exchange membranes with short-pathway through-plane orientated proton conductivity are highly desirable for use in proton exchange membrane fuel cells. Magnetic field is utilized to create oriented structure in proton exchange membranes. Previously, this has only been carried out by proton nonconductive metal oxide-based fillers. Here, under a strong magnetic field, a proton-conducting paramagnetic complex based on ferrocyanide-coordinated polymer and phosphotungstic acid is used to prepare composite membranes with highly conductive through-plane-aligned proton channels. Gratifyingly, this strategy simultaneously overcomes the high water-solubility of phosphotungstic acid in composite membranes, thereby preventing its leaching and the subsequent loss of membrane conductivity. The ferrocyanide groups in the coordinated polymer, via redox cycle, can continuously consume free radicals, thus helping to improve the long-term in situ membrane durability. The composite membranes exhibit outstanding proton conductivity, fuel cell performance and durability, compared with other types of hydrocarbon membranes and industry standard Nafion® 212. Proton exchange membranes with short-pathway through-plane proton conductivity are attractive for proton exchange membrane fuel cells. Here the authors align proton conducting channels orthogonal to the plane of composite proton exchange membranes using a magnetic field for improved fuel cell performance.read more
Citations
More filters
Journal ArticleDOI
Nanomaterials: a review of synthesis methods, properties, recent progress, and challenges
TL;DR: Nanomaterials have emerged as an amazing class of materials that consists of a broad spectrum of examples with at least one dimension in the range of 1 to 100 nm as discussed by the authors.
Journal ArticleDOI
Designing the next generation of proton-exchange membrane fuel cells.
Kui Jiao,Jin Xuan,Qing Du,Zhiming Bao,Biao Xie,Bowen Wang,Yan Zhao,Linhao Fan,Huizhi Wang,Hou Zhongjun,Sen Huo,Nigel P. Brandon,Yan Yin,Michael D. Guiver +13 more
TL;DR: In this paper, the authors present the latest ideas for improvements in the membrane electrode assembly and its components with regard to water and thermal management and materials, which are expected to be implemented in next-generation PEMFCs to achieve high power density.
Journal ArticleDOI
High temperature proton exchange membrane fuel cells: progress in advanced materials and key technologies
Rizwan Haider,Yichan Wen,Zi-Feng Ma,David P. Wilkinson,Lei Zhang,Xianxia Yuan,Shuqin Song,Jiujun Zhang,Jiujun Zhang +8 more
TL;DR: The state-of-the-art development of HT-PEMFC key materials, components and device assembly along with degradation mechanisms, mitigation strategies, and HT- PEMFC based CHP systems is comprehensively reviewed.
Journal ArticleDOI
Hydrogel soft robotics
TL;DR: In this paper, the authors discuss the unique features of hydrogel-based soft robots, from their fundamental working mechanisms to notable applications, and suggest perspectives on future directions that addressing potential challenges in the field of Hydrogel soft robotics.
Journal ArticleDOI
Do carbon emission trading schemes stimulate green innovation in enterprises? Evidence from China
TL;DR: Wang et al. as mentioned in this paper provided preliminary evidence on the influence of China's carbon emission trading scheme pilot policy on green innovation based on green patent data and found that the pilot policy has an evident lagging effect on restraining the green innovation of enterprises.
References
More filters
Journal ArticleDOI
A review: James H. Meisel, The Fall of the Republic: Military Revolt in France Edward R. Tannenbaum, The Action Française: Diehard Reactionaries in Twentieth-Century France
Journal ArticleDOI
Scientific aspects of polymer electrolyte fuel cell durability and degradation.
Rodney L. Borup,Jeremy P. Meyers,Bryan S. Pivovar,Yu Seung Kim,Rangachary Mukundan,Nancy Garland,Deborah J. Myers,Mahlon S. Wilson,Fernando H. Garzon,David L. Wood,Piotr Zelenay,Karren L. More,Ken Stroh,Thomas A. Zawodzinski,James M. Boncella,James E. McGrath,Minoru Inaba,Kenji Miyatake,Michio Hori,Kenchiro Ota,Zempachi Ogumi,Seizo Miyata,Atsushi Nishikata,Zyun Siroma,Yoshiharu Uchimoto,Kazuaki Yasuda,Ken'ichi Kimijima,Norio Iwashita +27 more
TL;DR: The research focuses on the durability of polymer electrolyte fuel cells (PEFCs), in particular, membrane degradation, and he has been involved in NEDO R&D research projects on PEFC durability since 2001.
Journal ArticleDOI
Electrochemical Properties of Polyoxometalates as Electrocatalysts.
Journal ArticleDOI
Part II: Rice Flour Beignets—A Case Study of the Culinary Innovation Process
TL;DR: The authors used a framework for culinary product innovations as a distinctive capability specifically to foodservice operations, and used a rice flour beignet project as a case study of the proposed process.
Journal ArticleDOI
A review of PEM fuel cell durability: Degradation mechanisms and mitigation strategies
Jinfeng Wu,Xiao-Zi Yuan,Jonathan J. Martin,Haijiang Wang,Jiujun Zhang,Jun Shen,Shaohong Wu,Walter Mérida,Walter Mérida +8 more
TL;DR: In this paper, a literature-based analysis has been carried out in an attempt to achieve a unified definition of PEM fuel cell lifetime for cells operated either at a steady state or at various accelerated conditions.