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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: proton exchange membrane fuel cells (PEMFCs), in which Pt-based catalysts employed in the cathodic catalystlayer (CCL) account for the major portion of the cost.of two types of membrane electrode structures, one containing low-Pt-based CCL and NPMC-based dummy catalystlayer (DCL) and the other containing only the NPMC-based CCL.

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

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Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 297-302 doi: 10.1007/s11705-011-1201-1

Abstract: A lattice model of the nanoscaled catalyst layer structure in proton exchange membrane fuel cells (PEMFCThe model takes into account all the four components in a typical PEMFC catalyst layer: platinum (Pt)elemental voxels in the lattice were set fine enough so that each average sized Pt particulate in Pt/C catalystCatalyst utilization in the modeled catalyst layer was calculated by counting up the number of facets, on catalyst utilization were investigated and discussed.

Keywords： catalyst layer     PEM fuel cell     lattice model     Monte Carlo method     catalyst utilization    

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Chemical composition and formation mechanisms in the cathode-electrolyte interface layer of lithium manganese

Sahithya REDDIVARI, Christian LASTOSKIE, Ruofei WU, Junliang ZHANG

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 365-373 doi: 10.1007/s11708-017-0500-8

Abstract: Lithium manganese oxide (LiMn O ) is a principal cathode material for high power and high energy densityAlthough a thin layer of electrolyte decomposition products is known to form at the cathode surface,the speciation and reaction mechanisms of Mn in this interface layer are not yet well understood.The ReaxFFMD simulations reveal that the cathode-electrolyte interface layer is composed of oxidationAn overall cathode-electrolyte interface reaction scheme is proposed based on the molecular simulation

Keywords： lithium manganese oxide batteries     reactive force field (ReaxFF)     cathode-electrolyte interface layer     molecular    

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Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing

Jun HUANG, Zhe LI, Jianbo ZHANG

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 334-364 doi: 10.1007/s11708-017-0490-6

Abstract: Ionomer impregnation represents a milestone in the evolution of polymer electrolyte fuel cell (PEFC) catalystIonomer acts as the binder, facilitates proton transport, and thereby drastically improves catalyst utilizationIonomer-free ultra-thin catalyst layers (UTCLs) emerge as a promising alternative to reduce Pt loadingAt present, the development of PEFC catalyst layer has come to a crossroads: staying ionomer-impregnatedlayer and the emerging ionomer-free UTCLs, featuring advances in characterizing microscale distributions

Keywords： polymer electrolyte fuel cell     ultra-thin catalyst layer     electrostatic interactions     characterization and    

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Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 460-472 doi: 10.1007/s11708-021-0733-4

Abstract: Analysis of water transport in cathode catalyst layer (CCL) during cold start reveals the distinct characteristicsFor the sake of better cold start performance, novel preparation methods, which can create catalyst layers

Keywords： cold start     energy conversion     fuel cells     mesoscale morphology     tortuosity     water management    

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DOW CORNING 1-2577 Conformal Coating as an efficient diffusion material for cathode in the microbial

Yanping HOU, Haiping LUO, Guangli LIU, Renduo ZHANG, Yong LUO, Bangyu QIN, Shanshan CHEN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 526-530 doi: 10.1007/s11783-013-0532-1

Abstract: In this study, DOW CORNING 1-2577 Conformal Coating was proposed for the cathode diffusion layer of theMFCs, stainless steel mesh cathodes using DOW CORNING 1-2577 Conformal Coating/carbon as the diffusion layerand two poly (dimethylsiloxane) (PDMS)/carbon diffusion layers and carbon cloth cathode with four polysame operational condition, the MFCs with the DOW CORNING 1-2577 Conformal Coating/carbon diffusion layerThe DOW CORNING 1-2577 Conformal Coating could be an alternative for the diffusion layer construction

Keywords： microbial fuel cell     diffusion layer     power density     DOW CORNING1-2577 Conformal Coating    

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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 cathodeFinally, future directions for PEMFC catalyst research are proposed.

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: A biocathode with microbial catalyst in place of a noble metal was successfully developed for hydrogenincreasing 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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A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack

Arunkumar JAYAKUMAR

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 325-338 doi: 10.1007/s11708-019-0618-y

Abstract: Polymer electrolyte membrane (PEM) fuel cell is the most promising among the various types of fuel cells. Though it has found its applications in numerous fields, the cost and durability are key barriers impeding the commercialization of PEM fuel cell stack. The crucial and expensive component involved in it is the gas diffusion electrode (GDE) and its degradation, which limits the performance and life of the fuel cell stack. A critical analysis and comprehensive understanding of the structural and functional properties of various materials involved in the GDE can help us to address the related durability and cost issues. This paper reviews the key GDE components, and in specific, the root causes influencing the durability. It also envisages the role of novel materials and provides a critical recommendation to improve the GDE durability.

Keywords： PEM fuel cell     gas diffusion electrode(GDE)     gas diffusion layer(GDL)     membrane electrode assembly     durability     fuel cell catalyst    

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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 cathodesuperior electrochemical performance is mainly attributed to the Al2O3 coating layerThis 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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Title Author Date Type Operation

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

Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Journal Article

Chemical composition and formation mechanisms in the cathode-electrolyte interface layer of lithium manganese

Sahithya REDDIVARI, Christian LASTOSKIE, Ruofei WU, Junliang ZHANG

Journal Article

Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing

Jun HUANG, Zhe LI, Jianbo ZHANG

Journal Article

Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Journal Article

DOW CORNING 1-2577 Conformal Coating as an efficient diffusion material for cathode in the microbial

Yanping HOU, Haiping LUO, Guangli LIU, Renduo ZHANG, Yong LUO, Bangyu QIN, Shanshan CHEN

Journal Article

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

A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack

Arunkumar JAYAKUMAR

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