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cathode 6

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proton exchange membrane fuel cells (PEMFCs) 2

in situ growth mechanism 1

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Mapping the trends and prospects of battery cathode materials based on patent landscape

Frontiers in Energy   Pages 822-832 doi: 10.1007/s11708-023-0900-x

Abstract: cutting-edge lithium-ion (Li-ion) battery technology, which is closely linked to the properties of cathodeIdentifying trends and prospects of cathode materials based on patent analysis is considered a kernelIn the top 10 patent assignees of 6 cathode materials, 2 institutes are from China with the rest beingJapan (6) and Republic of Korea (2), indicating that the technology of cathode materials in China isrelatively scattered while cathode research is highly concentrated in Japan and Republic of Korea.

Keywords： patent analysis     cathode     batteries     technology life cycle    

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Fabrication of layered structure VS anchor in 3D graphene aerogels as a new cathode material for lithium

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 597-602 doi: doi:10.1007/s11708-018-0576-9

Abstract: a layered structure VS4 anchored in graphene aerogels is prepared and first reported as cathode

Keywords： VS4     graphene aerogels     cathode     lithium storage    

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Recent advances in cathode electrocatalysts for PEM fuel cells

Junliang ZHANG

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 137-148 doi: 10.1007/s11708-011-0153-y

Abstract: article is focused on recent advances made in the kinetic-activity improvement on platinum- (Pt-) based cathode

Keywords： proton exchange membrane fuel cells (PEMFCs)     cathode electrocatalysts     platinum     oxygen reduction reaction    

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Current challenge and perspective of PGM-free cathode catalysts for PEM fuel cells

Gang WU

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 286-298 doi: 10.1007/s11708-017-0477-3

Abstract: significantly reduce the cost of proton exchange membrane fuel cells, platinum-group metal (PGM)-free cathode

Keywords： oxygen reduction     fuel cells     cathode     nonprecious metal catalysts     carbon nanocomposites    

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Effects of bicarbonate and cathode potential on hydrogen production in a biocathode electrolysis cell

Dawei LIANG,Yanyan LIU,Sikan PENG,Fei LAN,Shanfu LU,Yan XIANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 624-630 doi: 10.1007/s11783-013-0584-2

Abstract: increasing the bicarbonate buffer concentration from 0.05 mol·L to 0.5 mol·L and/or by decreasing the cathodeof 8.44 m ·m ·d with a current density of 951.6 A·m was obtained using the biocathode MEC under a cathode

Keywords： microbial electrolysis cell (MEC)     biocathode     hydrogen production     bicarbonate     cathode potential    

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Effect of current density on groundwater arsenite removal performance using air cathode electrocoagulation

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1399-1

Abstract:

• With the same charge, current density had little effect on As(III) removal in ACEC.

Keywords： Electrocoagulation     Air cathode     Arsenic     Current density     Energy consumption    

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Block copolymers as efficient cathode interlayer materials for organic solar cells

Dingqin Hu, Jiehao Fu, Shanshan Chen, Jun Li, Qianguang Yang, Jie Gao, Hua Tang, Zhipeng Kan, Tainan Duan, Shirong Lu, Kuan Sun, Zeyun Xiao

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 571-578 doi: 10.1007/s11705-020-2010-1

Abstract: Emerging needs for the large-scale industrialization of organic solar cells require high performance cathodeHerein, we design block copolymers with well controlled chemical composition and molecular weight for cathodeApplications of the cathode interlayers in organic solar cells provide higher power conversion efficiencyFurthermore, no post-treatment is needed which enables excellent processability of the block copolymer based cathode

Keywords： organic solar cell     block copolymer     cathode interlayer    

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Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries

Frontiers in Energy   Pages 775-781 doi: 10.1007/s11708-023-0902-8

Abstract: theoretical specific capacity, vanadium (V)-based compounds are a kind of the most developmental potential cathodeThis paper offers new prospects for the development of cathode coating materials for ZIBs.

Keywords： cathodes     aqueous zinc-ion batteries     sodium vanadate     alumina     coating    

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LiFePO/C cathode materials synthesized by co-precipitation and microwave heating

XU Yunlong, TAO Lili, MA Hongyan, HUANG Huaqing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 422-427 doi: 10.1007/s11705-008-0082-4

Abstract: LiFePO/C cathode materials were synthesized by a combination of co-precipitation and microwave heating

Keywords： polyethylene     electrochemical performance     combination     co-precipitation     diffraction    

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CC@BCN@PANI core-shell nanoarrays as ultra-high cycle stability cathode for Zn-ion hybrid supercapacitors

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 555-566 doi: 10.1007/s11708-023-0882-8

Abstract: Exploring cathode materials that combine excellent cycling stability and high energy density poses a(PANI) coated boron-carbon-nitrogen (BCN) nanoarray on carbon cloth surface is prepared as advanced cathodeof the excellent specific capacity and conductivity of PANI, the CC@BCN@PANI core-shell nanoarrays cathode

Keywords： CC@BCN@PANI cathode     Zn-ion hybrid supercapacitor     core-shell nanoarrays     high energy density     ultra-high    

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Exploration of the oxygen transport behavior in non-precious metal catalyst-based cathode catalyst layer

Shiqu CHEN, Silei XIANG, Zehao TAN, Huiyuan LI, Xiaohui YAN, Jiewei YIN, Shuiyun SHEN, Junliang ZHANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 123-133 doi: 10.1007/s11708-022-0849-1

Abstract: High cost has undoubtedly become the biggest obstacle to the commercialization of proton exchange membrane fuel cells (PEMFCs), in which Pt-based catalysts employed in the cathodic catalyst layer (CCL) account for the major portion of the cost. Although non-precious metal catalysts (NPMCs) show appreciable activity and stability in the oxygen reduction reaction (ORR), the performance of fuel cells based on NPMCs remains unsatisfactory compared to those using Pt-based CCL. Therefore, most studies on NPMC-based fuel cells focus on developing highly active catalysts rather than facilitating oxygen transport. In this work, the oxygen transport behavior in CCLs based on highly active Fe-N-C catalysts is comprehensively explored through the elaborate design of two types of membrane electrode structures, one containing low-Pt-based CCL and NPMC-based dummy catalyst layer (DCL) and the other containing only the NPMC-based CCL. Using Zn-N-C based DCLs of different thickness, the bulk oxygen transport resistance at the unit thickness in NPMC-based CCL was quantified via the limiting current method combined with linear fitting analysis. Then, the local and bulk resistances in NPMC-based CCLs were quantified via the limiting current method and scanning electron microscopy, respectively. Results show that the ratios of local and bulk oxygen transport resistances in NPMC-based CCL are 80% and 20%, respectively, and that an enhancement of local oxygen transport is critical to greatly improve the performance of NPMC-based PEMFCs. Furthermore, the activity of active sites per unit in NPMC-based CCLs was determined to be lower than that in the Pt-based CCL, thus explaining worse cell performance of NPMC-based membrane electrode assemblys (MEAs). It is believed that the development of NPMC-based PEMFCs should proceed not only through the design of catalysts with higher activity but also through the improvement of oxygen transport in the CCL.

Keywords： proton exchange membrane fuel cells (PEMFCs)     non-precious metal catalyst (NPMC)     cathode catalyst layer    

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g-CN-coated MnO hollow nanorod cathode for stable aqueous Zn-ion batteries

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 217-225 doi: 10.1007/s11705-022-2214-7

Abstract: Manganese-based materials have been widely developed for zinc-ion batteries cathode owning to their low2@g-C3N4 was successfully prepared for stable zinc-ion batteries (ZIBs) cathodeThe α-MnO2@g-C3N4-based cathode has the highest energy densityThis work provides new avenues for the development of a wider range of cathode materials for ZIBs.

Keywords： α-MnO2 hollow nanorods     g-C3N4     heterojunction     aqueous Zn-ion batteries    

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Kombucha SCOBY-based carbon and graphene oxide wrapped sulfur/polyacrylonitrile as a high-capacity cathode

Krishnaveni Kalaiappan, Subadevi Rengapillai, Sivakumar Marimuthu, Raja Murugan, Premkumar Thiru

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 976-987 doi: 10.1007/s11705-019-1897-x

Abstract: The cathode delivered an initial discharge capacity of 1652 mAh·g at a 0.1 C rate and a 100 cycle capacity

Keywords： sulfur cathode     kombucha SCOBY     graphene oxide     polyacrylonitrile     lithium-sulfur battery    

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Study on the growth of platinum nanowires as cathode catalysts in proton exchange membrane fuel cells

Ruiqing Wang, Xiaolan Cao, Sheng Sui, Bing Li, Qingfeng Li

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 364-375 doi: 10.1007/s11705-021-2052-z

Abstract: The platinum nanowires have been verified to be a promising catalyst to promote the performance of proton exchange membrane fuel cells. In this paper, accurately controlled growth of nanowires in a carbon matrix is achieved for reducing Pt loading. The effects of formic acid concentration and reaction temperature on the morphology and size of the Pt nanowires, as well as their electrochemical performances in a single cell, are investigated. The results showed that the increase in the formic acid concentration results in a volcano trend with the length of Pt nanowires. With increasing reduction temperature, the diameter of Pt nanowires increases while Pt particles evolve from one-dimensional to zero-dimensional up to 40 °C. A mechanism of the Pt nanowires growth is proposed. The optimized Pt nanowires electrode exhibits a power density (based on electrochemical active surface area) 79% higher than conventional Pt/C one. The control strategy obtained contributes to the design and control of novel nanostructures in nano-synthesis and catalyst applications.

Keywords： Pt nanowires     morphology     structure control     in situ growth mechanism     proton exchange membrane fuel cells    

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Research and Development of Inert cathode and Anode in Aluminium Electrolysis

Qiu Zhuxian

Strategic Study of CAE 2001, Volume 3, Issue 5,   Pages 50-54

Abstract: They include inert cathode, inert anode, dipolar electrode and SiC side lining.

Keywords： inert anode     inert cathode     SiC side lining     aluminium electrolysis at lower temperatures    

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Title Author Date Type Operation

Mapping the trends and prospects of battery cathode materials based on patent landscape

Journal Article

Fabrication of layered structure VS anchor in 3D graphene aerogels as a new cathode material for lithium

Journal Article

Recent advances in cathode electrocatalysts for PEM fuel cells

Junliang ZHANG

Journal Article

Current challenge and perspective of PGM-free cathode catalysts for PEM fuel cells

Gang WU

Journal Article

Effects of bicarbonate and cathode potential on hydrogen production in a biocathode electrolysis cell

Dawei LIANG,Yanyan LIU,Sikan PENG,Fei LAN,Shanfu LU,Yan XIANG

Journal Article

Effect of current density on groundwater arsenite removal performance using air cathode electrocoagulation

Journal Article

Block copolymers as efficient cathode interlayer materials for organic solar cells

Dingqin Hu, Jiehao Fu, Shanshan Chen, Jun Li, Qianguang Yang, Jie Gao, Hua Tang, Zhipeng Kan, Tainan Duan, Shirong Lu, Kuan Sun, Zeyun Xiao

Journal Article

Alumina modified sodium vanadate cathode for aqueous zinc-ion batteries

Journal Article

LiFePO/C cathode materials synthesized by co-precipitation and microwave heating

XU Yunlong, TAO Lili, MA Hongyan, HUANG Huaqing

Journal Article

CC@BCN@PANI core-shell nanoarrays as ultra-high cycle stability cathode for Zn-ion hybrid supercapacitors

Journal Article

Exploration of the oxygen transport behavior in non-precious metal catalyst-based cathode catalyst layer

Shiqu CHEN, Silei XIANG, Zehao TAN, Huiyuan LI, Xiaohui YAN, Jiewei YIN, Shuiyun SHEN, Junliang ZHANG

Journal Article

g-CN-coated MnO hollow nanorod cathode for stable aqueous Zn-ion batteries

Journal Article

Kombucha SCOBY-based carbon and graphene oxide wrapped sulfur/polyacrylonitrile as a high-capacity cathode

Krishnaveni Kalaiappan, Subadevi Rengapillai, Sivakumar Marimuthu, Raja Murugan, Premkumar Thiru

Journal Article

Study on the growth of platinum nanowires as cathode catalysts in proton exchange membrane fuel cells

Ruiqing Wang, Xiaolan Cao, Sheng Sui, Bing Li, Qingfeng Li

Journal Article

Research and Development of Inert cathode and Anode in Aluminium Electrolysis

Qiu Zhuxian

Journal Article