Journal of Power Sources Advances最新文献_第10页

Non-precious and accessible nanocomposite of iron oxide on PDDA-Modified graphene for catalyzing oxygen reduction reaction 用于催化氧还原反应的ppdda修饰石墨烯上的非贵重且易获得的纳米氧化铁复合材料

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-10-01 DOI: 10.1016/j.powera.2020.100025

Tung-Yuan Yung , Thangavel Sangeetha , Wei-Mon Yan , Cheng-Jung Yang , Po-Tuan Chen

{"title":"Non-precious and accessible nanocomposite of iron oxide on PDDA-Modified graphene for catalyzing oxygen reduction reaction","authors":"Tung-Yuan Yung , Thangavel Sangeetha , Wei-Mon Yan , Cheng-Jung Yang , Po-Tuan Chen","doi":"10.1016/j.powera.2020.100025","DOIUrl":"10.1016/j.powera.2020.100025","url":null,"abstract":"<div>Nanocomposite catalysts composed of non-precious nanoparticles anchored by modified graphene for oxygen reduction reactions (ORRs) are the emphasis of research nowadays for wide application in electrocatalyst systems. Herein, an endeavor is made to report on a one-pot synthesis method to produce a catalyst for Fe3O4 and Ni–NiO nanoparticles on Polydiallyldimethylammonium chloride-modified graphenes (PDDA-G). The nanocomposite is characterized by spectral measurements, using scanning electron spectroscopy (SEM), transmitting electron spectroscopy (TEM), x-ray diffractometer (XRD) and Raman spectroscopy to reveal its microstructure. Through a layer-by-layer PDDA-G investigation, a significant anchoring of nanoparticles and maintenance of the graphene with good electron transporting properties and spatial distance in nanoscale by PDDA is achieved. Additionally, the electrochemical properties of Fe3O4@PDDA-G and Ni–NiO@PDDA-G are demonstrated by linear scan voltammetry (LSV) with rotation disk electrode (RDE). Fe3O4@PDDA-G displays prominent ORR activity in 2-electron and 4-electron pathways, and better ORR mass activities than Ni–NiO@PDDA-G and commercial Pt/C. The results of this study provide a new strategy to develop material design approaches for high-performance electrocatalysts to be employed in fuel cells.</div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"5 ","pages":"Article 100025"},"PeriodicalIF":4.5,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2020.100025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"105130587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Rapid laser reactive sintering of BaCe0.7Zr0.1Y0.1Yb0.1O3-δ electrolyte for protonic ceramic fuel cells 质子陶瓷燃料电池用BaCe0.7Zr0.1Y0.1Yb0.1O3-δ电解质的快速激光反应烧结

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-08-01 DOI: 10.1016/j.powera.2020.100017

Shenglong Mu , Hua Huang , Akihiro Ishii , Zeyu Zhao , Minda Zou , Patrick Kuzbary , Fei Peng , Kyle S. Brinkman , Hai Xiao , Jianhua Tong

{"title":"Rapid laser reactive sintering of BaCe0.7Zr0.1Y0.1Yb0.1O3-δ electrolyte for protonic ceramic fuel cells","authors":"Shenglong Mu , Hua Huang , Akihiro Ishii , Zeyu Zhao , Minda Zou , Patrick Kuzbary , Fei Peng , Kyle S. Brinkman , Hai Xiao , Jianhua Tong","doi":"10.1016/j.powera.2020.100017","DOIUrl":"10.1016/j.powera.2020.100017","url":null,"abstract":"<div>The state-of-the-art protonic ceramic electrolyte BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb) dense films were successfully deposited on the pre-sintered Ni(O)+BCZYYb anode substrate by recently developed rapid laser reactive sintering (RLRS) method. The separation of the deposition of dense electrolyte from the preparation of porous anode makes it possible to manufacture protonic ceramic fuel cells (PCFCs) with more desirable electrolyte and anode microstructures. The PCFC single cells prepared after introducing the cathode thin film BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY0.1) showed OCVs of 0.94–0.97V and peak power densities of 97 mW/cm2 at 600 °C and 121 mW/cm2 at 600–650 °C under Air/H2 gradient. The proton conductivity of the BCZYYb film derived the RLRS-derived single cell showed a moderate proton conductivity of 3.7 × 10−3S/cm at 600 °C. The higher PCFC performance can be expected by further optimization of the thickness, compositions, and/or microstructures of the component layers.</div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"4 ","pages":"Article 100017"},"PeriodicalIF":4.5,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2020.100017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46058496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Aqueous multi-electron electrolyte for hybrid flow batteries with high energy and power densities 用于高能量和功率密度混合液流电池的多电子水溶液

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-08-01 DOI: 10.1016/j.powera.2020.100018

Qiuhong Wang, Walid A. Daoud

{"title":"Aqueous multi-electron electrolyte for hybrid flow batteries with high energy and power densities","authors":"Qiuhong Wang, Walid A. Daoud","doi":"10.1016/j.powera.2020.100018","DOIUrl":"10.1016/j.powera.2020.100018","url":null,"abstract":"<div>Flow battery is a promising energy storage technology for facilitating utilization of renewable resources. While new types of flow batteries have been explored toward high energy density, hampering the power density due to high electrolyte viscosity and sluggish reaction kinetics. Discovery of an aqueous electrolyte with multi-electron transfer reaction is thus favorable for both high energy and power densities due to its multiple charge stored at the same concentration. Both criteria are crucial to improve the flexibility of cell design and widen the application potential. Herein, bismuth is pioneered as negative electrolyte (negolyte) for hybrid flow battery owing to its three-electron reaction and the significantly increased solubility in methanesulfonic acid. In conjunction with cerium electrolyte, a volumetric energy density of 90 Wh L−1 is achieved and simultaneously a high power density of 295 mW cm−2 at 90% state-of-charge is demonstrated using low-cost carbon electrode. Furthermore, a high volumetric capacity of 120 Ah L−1 is reached via adopting graphite felt, which is 100% of the theoretical specific capacity of 1.5 M bismuth negolyte.</div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"4 ","pages":"Article 100018"},"PeriodicalIF":4.5,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2020.100018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"108500684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

In situ X-ray computational tomography measurement of single particle behavior of sulfide solid electrolyte under high-pressure compression 高压压缩下硫化物固体电解质单粒子行为的原位x射线计算机断层扫描测量

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-08-01 DOI: 10.1016/j.powera.2020.100019

M. Kodama, A. Ohashi, S. Hirai

引用次数: 8

Cathode starvation as an accelerated conditioning procedure for perfluorosulfonic acid ionomer fuel cells 阴极饥饿作为全氟磺酸离聚体燃料电池的加速调理程序

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-06-01 DOI: 10.1016/j.powera.2020.100012

Emmanuel Balogun , Alejandro Oyarce Barnett , Steven Holdcroft

{"title":"Cathode starvation as an accelerated conditioning procedure for perfluorosulfonic acid ionomer fuel cells","authors":"Emmanuel Balogun , Alejandro Oyarce Barnett , Steven Holdcroft","doi":"10.1016/j.powera.2020.100012","DOIUrl":"10.1016/j.powera.2020.100012","url":null,"abstract":"<div>Freshly assembled proton exchange fuel cells (PEMFC) require conditioning to reach maximum power density. This process may last up to tens of hours and adds to the cost of commercial fuel cell technology. We present an accelerated conditioning procedure involving starving the cathode of oxidant. In single cells, this procedure conditions a membrane electrode assembly (MEA) within 40 min, without compromising durability. The performance and durability of MEAs conditioned using this technique are compared with US Department of Energy (DOE) and European Union (EU) harmonized protocols, and to an amperometric conditioning protocol. The time to reach peak power density using cathode starvation conditioning is <10% of the time required for DOE, EU, and amperometric protocols. Conditioned MEAs were subjected to accelerated degradation by cycling the cell voltage between 0.6 V and open-circuit voltage under low relative humidity. Degradation was found to be caused by loss of electrochemical surface area of the cathode, which in turn increases the charge transfer resistance of the MEA. MEAs conditioned using cathode starvation experienced only a 15% loss in performance; in contrast to 19, 17 and 17% losses in performance caused by the DOE, EU, and amperometric protocols, respectively.</div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"3 ","pages":"Article 100012"},"PeriodicalIF":4.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2020.100012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41564398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Atomic-scale studies of garnet-type Mg3Fe2Si3O12: Defect chemistry, diffusion and dopant properties 石榴石型Mg3Fe2Si3O12的原子尺度研究:缺陷化学、扩散和掺杂性能

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-06-01 DOI: 10.1016/j.powera.2020.100016

Navaratnarajah Kuganathan , Alexander Chroneos

{"title":"Atomic-scale studies of garnet-type Mg3Fe2Si3O12: Defect chemistry, diffusion and dopant properties","authors":"Navaratnarajah Kuganathan , Alexander Chroneos","doi":"10.1016/j.powera.2020.100016","DOIUrl":"10.1016/j.powera.2020.100016","url":null,"abstract":"<div>Materials with low cost, environmentally benign, high structural stability and high Mg content are of considerable interest for the construction of rechargeable Mg-ion batteries. In the present study, atomistic simulations are used to provide insights into defect and diffusion properties of garnet type Mg3Fe2Si3O12. Calculations reveal that the Mg–Fe anti-site defect cluster (0.44 eV/defect) is the lowest energy intrinsic defect process. Three dimensional Mg-ion migration pathway with the activation energy of 2.19 eV suggests that Mg-ion diffusion in this material is slow. Favourable isovalent dopants are found to be Mn2+, Ga3+ and Ge4+ on the Mg, Fe and Si sites respectively. While the formation of Mg interstitials required for the capacity is facilitated by Al doping on the Si site, Mg vacancies needed for the vacancy assisted Mg-ion diffusion are enhanced by Ge doping on the Fe site. The electronic structures of favourable dopants are calculated and discussed using density functional theory.</div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"3 ","pages":"Article 100016"},"PeriodicalIF":4.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2020.100016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"96830021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Highly stable metal halide perovskite microcube anodes for lithium-air batteries 用于锂空气电池的高度稳定的金属卤化物钙钛矿微立方阳极

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-06-01 DOI: 10.1016/j.powera.2020.100015

Athanasia Kostopoulou , Dimitra Vernardou , Dimitra Makri , Konstantinos Brintakis , Kyriaki Savva , Emmanuel Stratakis

{"title":"Highly stable metal halide perovskite microcube anodes for lithium-air batteries","authors":"Athanasia Kostopoulou , Dimitra Vernardou , Dimitra Makri , Konstantinos Brintakis , Kyriaki Savva , Emmanuel Stratakis","doi":"10.1016/j.powera.2020.100015","DOIUrl":"10.1016/j.powera.2020.100015","url":null,"abstract":"<div>Metal halide perovskites have been recently proposed as hopeful materials for energy storage applications. Besides, the quite important electrochemical characteristics of these materials, all the perovskite-based anodes are synthesized at high temperatures (90–150 °C) and with reaction durations of the order of tens of hours. In this work, it has been particularly shown that the direct growth of all-inorganic, metal halide microcrystals free of ligands, provides high-performance and stable electrodes for Li-air batteries. We describe a very simple and rapid method to synthesize well-crystalline and ultra-stable, at both ambient and aqueous conditions, CsPbBr3 microcubes, exhibiting prominent electrochemical performance. In particular, it is shown that during the successive scans in which the Li-ions intercalate and deintercalate, the microcubes-based anodes showed a high specific capacity of 549 mAh·g−1 and operation durability up to 1500 cycles. The large interfacial area between the perovskite electroactive material and the electrolyte along with the increase of the active sites on the exposed microcubes facets favor the Li-ions intercalation. It is concluded that the anodes presented here demonstrate the best electrochemical features among the nano- and microparticulate lead halide perovskite anodes used for Li-air batteries, to date.</div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":"3 ","pages":"Article 100015"},"PeriodicalIF":4.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2020.100015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54919075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Ni/NiFe2 dual-layer coating for SOFC steel interconnects application SOFC钢互连用Ni/NiFe2双层涂层

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-04-01 DOI: 10.1016/j.powera.2020.100011

Qingqing Zhao, Shujiang Geng, Xingye Gao, Gang Chen, Fuhui Wang

引用次数: 11

Evaluation of counter and reference electrodes for the investigation of Ca battery materials 研究钙电池材料的反电极和参比电极的评价

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-04-01 DOI: 10.1016/j.powera.2020.100008

Xu Liu , Giuseppe Antonio Elia , Stefano Passerini

引用次数: 10

A rapid mechanical durability test for reinforced fuel cell membranes 增强燃料电池膜的快速机械耐久性试验

IF 4.5

Journal of Power Sources Advances Pub Date : 2020-04-01 DOI: 10.1016/j.powera.2020.100010

Alireza Sadeghi Alavijeh , Sandeep Bhattacharya , Owen Thomas , Carmen Chuy , Erik Kjeang

引用次数: 3