Evaluation of Graphene Nanoplatelets as a Microporous Layer Material for PEMFC: Performance and Durability Analysis

Mariani M.; Latorrata S.; Gallo Stampino P.; Dotelli G.

摘要

Abstract > In this paper, the effect of different carbonaceous phases in microporous layers (MPLs) for polymer electrolyte membrane fuel cells (PEMFCs) is reported. A conventional ink with carbon black (CB) powder and an innovative one featuring graphene nanoplatelets (GNPs) have been produced and used to coat carbon cloth gas diffusion layers (GDLs). Morphological and electrical properties of these samples have been assessed and then compared to determine which characteristics contribute to a possible enhancement of the fuel cell performance. Static contact angle measurements have revealed a similar hydrophobic character for both samples. Through‐plane water permeability and porosity of the samples have been correlated to the optimal working temperature: GNPs‐based MPLs provide the best performance in dry condition ( T = 80?°C, RH = 60%), while CB‐based samples work better in more humid conditions. Instead, the electrical conductivity of the samples have not displayed a strong influence on the polarization curve of the cell. In addition, an ex situ mechanical accelerated stress test (AST) has been performed on both samples to assess their durability and understand which factors could lengthen their lifetime. GNPs‐based samples resisted better under the harsh conditions imposed during the AST and a possible optimization of this ink composition is proposed for future development. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 本文报道，据报道，报道了不同含碳相对于聚合物电解质膜燃料电池（PEMFC）的微孔层（MPLS）中的不同碳质相的影响。已经生产了具有炭黑（CB）粉末的常规油墨和具有石墨烯纳米片（GNPS）的创新的油墨并用于涂上碳布气扩散层（GDL）。已经评估了这些样品的形态学和电气性质，然后进行了比较，以确定哪种特征有助于提高燃料电池性能的贡献。静态接触角测量显示了两个样品的类似疏水性。通过平面水渗透率和样品的孔隙率与最佳工作温度相关：基于GNP的MPLS提供了干燥条件的最佳性能（ t </ i> = 80？°C，RH = 60％），而基于CB的样品在更潮湿的情况下工作更好。相反，样品的电导率对电池的偏振曲线没有显示出强烈影响。另外，一个 ex situ </ i> 在两种样品上进行了机械加速应力测试（AST）以评估其耐用性并理解哪些因素可以延长其寿命。基于GNPS的样品在AST期间施加的苛刻条件下抵抗更好，并且提出了该油墨组合物的可能优化，用于将来的发展。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-24199/'>《Fuel cells》</a> <b style="margin: 0 2px;">|</b><span>2019年第6期</span><b style="margin: 0 2px;">|</b><span>共10页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Mariani M.&option=202" target="_blank" rel="nofollow">Mariani M.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Latorrata S.&option=202" target="_blank" rel="nofollow">Latorrata S.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gallo Stampino P.&option=202" target="_blank" rel="nofollow">Gallo Stampino P.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Dotelli G.&option=202" target="_blank" rel="nofollow">Dotelli G.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Chemistry Materials and Chemical Engineering ‘‘G. Natta''Politecnico di MilanoPiazza Leonardo da Vinci 32 20133 Milano Italy;</p> <p>Department of Chemistry Materials and Chemical Engineering ‘‘G. Natta''Politecnico di MilanoPiazza Leonardo da Vinci 32 20133 Milano Italy;</p> <p>Department of Chemistry Materials and Chemical Engineering ‘‘G. Natta''Politecnico di MilanoPiazza Leonardo da Vinci 32 20133 Milano Italy;</p> <p>Department of Chemistry Materials and Chemical Engineering ‘‘G. Natta''Politecnico di MilanoPiazza Leonardo da Vinci 32 20133 Milano Italy;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1817.html" title="电化学工业">电化学工业;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Accelerated Stress Tests&option=203" rel="nofollow">Accelerated Stress Tests;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Durability&option=203" rel="nofollow">Durability;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gas Diffusion Layer&option=203" rel="nofollow">Gas Diffusion Layer;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Graphene&option=203" rel="nofollow">Graphene;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Microporous Layer&option=203" rel="nofollow">Microporous Layer;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Microporous Materials&option=203" rel="nofollow">Microporous Materials;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Polymer Electrolyte Membrane Fuel Cells&option=203" rel="nofollow">Polymer Electrolyte Membrane Fuel Cells;</a> </p> <div class="translation"> 机译：加速应力测试;耐久性;气体扩散层;石墨烯;微孔层;微孔材料;聚合物电解质膜燃料电池; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" 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