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| 1 | Alkaline polymer electrolyte fuel cells: Principle, challenges, and recent progress显示文摘Polymer electrolyte membrane fuel cells (PEMFC) have been recognized as a significant power source in future energy systems based on hydrogen. The current PEMFC technology features the employment of acidic polymer electrolytes which, albeit superior to electrolyte solutions, have intrinsically limited the catalysts to noble metals, fundamentally preventing PEMFC from widespread deployment. An effective solution to this problem is to develop fuel cells based on alkaline polymer electrolytes (APEFC), which not only enable the use of non-precious metal catalysts but also avoid the carbonate-precipitate issue which has been troubling the conventional alkaline fuel cells (AFC). This feature article introduces the principle of APEFC, the challenges, and our research progress, and focuses on strategies for developing key materials, including high-performance alkaline polyelectrolytes and stable non-precious metal catalysts. For alkaline polymer electrolytes, high ionic conductivity and satisfactory mechanical property are difficult to be balanced, therefore polymer cross-linking is an ultimate strategy. For non-precious metal catalysts, it is urgent to improve the catalytic activity and stability. New materials, such as transition-metal complexes, nitrogen-doped carbon nanotubes, and metal carbides, would become applicable in APEFC. | TANG DaoPing, PAN Jing, LU ShanFu, ZHUANG Lin* & LU JunTao Hubei Key Lab of Electrochemical Power Sources College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China | 2010 | Science China Chemistry2010,53,2: | 9 |
| 2 | Advancement toward Polymer Electrolyte Membrane Fuel Cells at Elevated Temperatures显示文摘Elevation of operational temperatures of polymer electrolyte membrane fuel cells(PEMFCs)has been demonstrated with phosphoric acid-doped polybenzimidazole(PA/PBI)membranes.The technical perspective of the technology is simplified construction and operation with possible integration with,e.g.,methanol reformers.Toward this target,significant efforts have been made to develop acid-base polymer membranes,inorganic proton conductors,and organic-inorganic composite materials.This report is devoted to updating the recent progress of the development particularly of acid-doped PBI,phosphate-based solid inorganic proton conductors,and their composite electrolytes.Long-term stability of PBI membranes has been well documented,however,at typical temperatures of 160℃.Inorganic proton-conducting materials,e.g.,alkali metal dihydrogen phosphates,heteropolyacids,tetravalent metal pyrophosphates,and phosphosilicates,exhibit significant proton conductivity at temperatures of up to 300℃ but have so far found limited applications in the form of thin films.Composite membranes of PBI and phosphates,particularly in situ formed phosphosilicates in the polymer matrix,showed exceptionally stable conductivity at temperatures well above 200℃.Fuel cell tests at up to 260℃ are reported operational with good tolerance of up to 16%CO in hydrogen,fast kinetics for direct methanol oxidation,and feasibility of nonprecious metal catalysts.The prospect and future exploration of new proton conductors based on phosphate immobilization and fuel cell technologies at temperatures above 200℃ are discussed. | Jin Zhang David Aili Shanfu Lu Qingfeng Li and San Ping Jiang | 2020 | Research2020,,1: | 6 |
| 3 | Effects of bicarbonate and cathode potential on hydrogen production in a biocathode electrolysis cell显示文摘有代替高贵金属的微生物引起的催化剂的 biocathode 成功地在一个微生物引起的电解房间(MEC ) 为氢进化被开发。为快 biocathode 耕作的策略被表明。exoelectrogenic 反应开始与 H 被扩大 < 潜水艇 class= “ a-plus-plus ” > 充实 H 的 2 -full 空气 < 潜水艇 class= “ a-plus-plus ” > 在 MEC bioanode 的 2 个 -utilizing 细菌。这 bioanode 然后相反地在一个一半房间与应用电压被极化充实演变氢的 biocathode。electrocatalytic 氢进化反应(她的) biocathode MEC 的动力学能被从 0.05 摩尔慢增加酸式碳酸盐缓冲区集中提高? | Dawei LIANG Yanyan LIU Sikan PENG Fei LAN Shanfu LU Yan XIANG | 2014 | Frontiers of Environmental Science & Engineering2014,8,4: | 2 |
| 4 | Silica-facilitated proton transfer for high-temperature proton-exchange membrane fuel cells显示文摘High-temperature proton-exchange membrane fuel cells(HT-PEMFCs)have shown a broad prospect of applications due to the enhanced reaction kinetics and simplified supporting system.However,the proton conductor,phosphoric acid,tends to poison the active sites of Pt,resulting in high Pt consumption.Herein,Pt nanoparticles anchored on SiO_(2)-modified carbon nanotubes(CNT@SiO_(2)-Pt)are prepared as high-performance cathode catalysts for HT-PEMFCs.The SiO_(2)in CNT@SiO_(2)-Pt can induce the adsorption of phosphoric acid transferring from Pt active sites in the catalytic layer,avoiding the poisoning of the Pt,and the phosphate fixed by SiO_(2)provide a high-speed proton conduction highway for oxygen reduction reactions.Accordingly,The CNT@SiO_(2)-Pt cathode achieve superior power density of 765 mW cm^(−2)(160℃)and 1,061 mW cm^(−2)(220℃)due to the rapid proton-coupled electron process and outstanding stability in HT-PEMFCs.This result provides a new road to resolve the phosphate poisoning for the commercialization of HT-PEMFCs. | Gen Huang Yingying Li Shiqian Du Yujie Wu Ru Chen Jin Zhang Yi Cheng Shanfu Lu Li Tao Shuangyin Wang | 2021 | Science China Chemistry2021,64,12: | 1 |
| 5 | Highly Ordered Mesoporous Nafion Membranes for Fuel Cells显示文摘 | LU Shanfu JIANG Sanping | 2011 | Chemical Communications2011,47,11: | 1 |
| 6 | Homogeneous blend membrane made from poly(ether sulphone) and poly(vinylpyrrolidone) and its application to water electrolysis 显示文摘 | Shanfu Lua Lin Zhuang Juntao Lu | 2007 | Journal of Membrane Science2007,300,: | 1 |
| 7 | Homogeneous blend membrane made from poly(ether sulphone)and poly(vinylpyrrolidone)and its application to water electrolysis显示文摘 | Shanfu Lua Lin Zhuang Juntao Lu | 2007 | Journal of Membrane Science2007,300,12: | 1 |
| 8 | Elucidating the electro-catalytic oxidation of hydrazine over carbon nanotube-based transition metal single atom catalysts显示文摘Elucidating the reaction mechanism of hydrazine oxidation reaction(HzOR)over carbon-based catalysts is highly propitious for the rational design of novel electrocatalysts for HzOR.In present work,isolated first-row transition metal atoms have been coordinated with N atoms on the graphite layers of carbon nanotubes via a M-N_(4)-C configuration(MSA/CNT,M=Fe,Co and Ni).The HzOR over the three single atom catalysts follows a predominant 4-electron reaction pathway to emit N_(2) and a negligible 1-electron pathway to emit trace of NH3,while their electrocatalytic activity for HzOR is dominated by the absorption energy of N2H4 on them.Furthermore,FeSA/CNT reverses the passivation effect on Fe/C and shows superior performance than CoSA/CNT and NiSA/CNT with a recorded high mass activity for HzOR due to the higher electronic charge of Fe over Co and Ni in the M-N_(4)-C configuration and the lowest absorption energy of N_(2)H_(4) on FeSA/CNT among the three MSA/CNT catalysts. | Jin Zhang Yaxin Wang Chujie Yang Sian Chen Zhengjian Li Yi Cheng Haining Wang Yan Xiang Shanfu Lu Shuangyin Wang | 2021 | Nano Research2021,14,12: | 1 |
| 9 | Homogeneous blend membrane made from poly(ether sulphone) and poly(vinylpyrrolidone) and its application to water electrolysis显示文摘 | Shanfu Lu Lin Zhuang Juntao Lu | 2007 | Journal of Membrane Science2007,300,12: | 1 |
| 10 | High-entropy L1_(2)-Pt(FeCoNiCuZn)_(3) intermetallics for ultrastable oxygen reduction reaction显示文摘Enhancing the stability of Pt-based electrocatalysts for the sluggish cathodic oxygen reduction reaction(ORR)is critical for proton exchange membrane fuel cells(PEMFCs).Herein,high-entropy intermetallic(HEI)L1_(2)-Pt(FeCoNiCuZn)3is designed for durable ORR catalysis.Benefiting from the unique HEI structure and the enhanced intermetallic phase stability,Pt(FeCoNiCuZn)3/C nanoparticles demonstrate significantly improved stability over Pt/C and PtCu_(3)/C catalysts.The Pt(FeCoNiCuZn)3/C exhibits a negligible decay of the half-wave potential during 30,000 potential cycles from 0.6 to 1.0 V,whereas Pt/C and PtCu_(3)/C are negatively shifted by 46 and 36 m V,respectively.Even after 10,000 cycles at potential up to 1.5 V,the mass activity of Pt(FeCoNiCuZn)3/C still shows~70%retention.As evidenced by the structural characterizations,the HEI structure of Pt(FeCoNiCuZn)3/C is well maintained,while PtCu_(3)/C nanoparticles undergo severe Cu leaching and particle growth.In addition,when assembled Pt(FeCoNiCuZn)3/C as the cathode in high-temperature PEMFC of 160℃,the H_(2)-O_(2)fuel cell delivers almost no degradation even after operating for 150 h,demonstrating the potential for fuel cell applications.This work provides a facile design strategy for the development of high-performance ultrastable electrocatalysts. | Qian Zhang Tao Shen Min Song Shuang Wang Jialin Zhang Xiao Huang Shanfu Lu Deli Wang | 2023 | Journal of Energy Chemistry2023,,11: | 0 |
| 11 | A Direct Liquid Fuel Cell with High Power Density Using Reduced Phosphotungstic Acid as Redox Fuel显示文摘Direct liquid fuel cells(DLFCs)are proposed to address the problems of high cost and complex storage and transportation of hydrogen in traditional hydrogen-oxygen proton exchange membrane fuel cells.However,present fuels of organic small molecules used in DLFCs are restricted to problems of sluggish electrochemical kinetics and easily poisoning of precious metal catalysts.Herein,we demonstrate reduced phosphotungstic acid as a liquid fuel for DLFCs based on its advantages of high chemical and electrochemical stability,high electrochemical activity on common carbon material electrodes,and low permeability through proton exchange membranes.The application of phosphotungstic acid fuel effectively solves the problems of high cost of anode catalysts and serious fuel permeation loss in traditional DLFCs.A phosphotungstic acid fuel cell achieves a peak power density of466 mW cm^(-2)at a cell voltage of 0.42 V and good stability at current densities in the range from 20 to 200 mA cm^(-2). | Yiyang Liu Ting Feng Shanfu Lu Haining Wang Yan Xiang | 2022 | Energy & Environmental Materials2022,5,1: | 0 |
| 12 | Polyoxometalate-based electrolyte materials in redox flow batteries:Current trends and emerging opportunities显示文摘Redox flow batteries have received wide attention for electrochemical energy conversion and storage devices due to their specific advantage of uncoupled power and energy devices,and therefore potentially to reduce the capital costs of energy storage.Terrific structural features of polyoxometalates exhibit unique advantages in redox flow batteries,such as,stable chemical properties,multi-electron reaction,good redox reversibility,low permeability,etc,which furnishes a novel perspective for settling various problems of redox flow batteries.This was a comprehensive and critical review of this type of batteries,focusing mainly on the chemistry of polyoxometalate electrolyte materials and introducing a systematic classification.Finally,challenges and perspectives of polyoxometalate electrolyte materials and polyoxometalate redox flow batteries are discussed. | Yiyang Liu Jialin Zhang Shanfu Lu Yan Xiang | 2022 | Materials Reports(Energy)2022,2,2: | 0 |