Co-localized AFM-Raman: A powerful tool to optimize the sol-gel chemistry of hybrid polymer membranes for fuel cell

J.P. Cosas Fernandes; V.H. Mareau; L. Gonon

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Co-localized AFM-Raman: A powerful tool to optimize the sol-gel chemistry of hybrid polymer membranes for fuel cell

机译：共同定位的AFM-Raman：一种优化杂种聚合物膜的溶胶 - 凝胶化学工具，用于燃料电池的溶胶 - 凝胶化学

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Abstract

Proton-Exchange Membrane Fuel Cells is a promising emission free energy technology. New generation of hybrid membrane for hydrogen fuel cells were produced from commercial sPEEK membranes, chemically and mechanically stabilized with a Sol-Gel (SG) phase. To study the process-structure-properties relationship of our alternative membranes we coupled Atomic Force Microscopy and Raman microspectroscopy on membranes prepared by cryo-ultramicrotomy without epoxy embedding. This paper demonstrates the powerfulness of co-localized AFM-Raman analysis, revealing the inner structure of hybrid membranes. We obtained quantitative data on the diffusion/condensation of SG precursors inside the sPEEK membrane. Co-localized analyses revealed the formation of skin layers with lower SG concentration on both sides of the membrane. The diffusion of species from the SG phase at the cross-section surface was observed at the first step of fabrication (insufficient SG condensation) and disappeared after hydrothermal treatments (improved SG condensation). The nano-mechanical data revealed a densification of the SG phase through the fabrication process.

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抽象

质子交换膜燃料电池是一种有前途的排放能源技术。用商业斑膜制备用于氢燃料电池的新一代杂化膜，用溶胶 - 凝胶（SG）相化学和机械稳定。为了研究我们替代膜的过程 - 结构性质关系，我们偶联了原子力显微镜和拉曼微穴位在不含环氧树脂嵌入的冷冻超微术中制备的膜上。本文展示了共同定位AFM-拉曼分析的强大功能，揭示了杂交膜的内部结构。我们获得了对Speek膜内SG前体的扩散/缩小的定量数据。共同定位的分析显示，在膜的两侧形成具有较低的SG浓度的皮肤层。在制备的第一步骤（SG缩合不足）并在水热处理后消失（改善SG缩合），观察到物种从横截面表面的横截面表面的扩散。纳米机械数据通过制造过程揭示了SG相的致密化。 < ce：section-title id =“sectitle0015”>图形摘要

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来源
《Polymer: The International Journal for the Science and Technology of Polymers》 |2018年第2018期|共14页
作者
J.P. Cosas Fernandes; V.H. Mareau; L. Gonon;
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作者单位

Univ. Grenoble Alpes CEA CNRS INAC-SyMMES;

Univ. Grenoble Alpes CEA CNRS INAC-SyMMES;

Univ. Grenoble Alpes CEA CNRS INAC-SyMMES;

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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物工业（高聚物工业）;
关键词
AFM; Raman; STEM; Cryo-ultramicrotomy; Polymer membrane; Sol-gel;

机译：AFM;拉曼;茎;冷冻超声波;聚合物膜;溶胶 - 凝胶;

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1. Co-localized AFM-Raman: A powerful tool to optimize the sol-gel chemistry of hybrid polymer membranes for fuel cell [J] . J.P. Cosas Fernandes, V.H. Mareau, L. Gonon Polymer: The International Journal for the Science and Technology of Polymers . 2018,第期

机译：共同定位的AFM-Raman：一种优化杂种聚合物膜的溶胶 - 凝胶化学工具，用于燃料电池的溶胶 - 凝胶化学
2. Optimization of parameters for hot-pressing manufacture of membrane electrode assembly for PEM (polymer electrolyte membrane fuel cells) fuel cell [J] . Osman Okur, Cigdem Iyiguen Karadag, Fatma Guel Boyaci San, Energy . 2013,第AUGa1期

机译：热压制造PEM（聚合物电解质膜燃料电池）燃料电池膜电极组件的参数优化
3. Influence of sol-gel media on the properties of Nafion-SiO_2 hybrid electrolytes for high performance proton exchange membrane fuel cells operating at high temperature and low humidity [J] . Mauro Andre Dresch, Roberta Alvarenga Isidoro, Marcelo Linardi, Electrochimica Acta . 2013,第Null期

机译：溶胶-凝胶介质对高温低湿下高性能质子交换膜燃料电池Nafion-SiO_2混合电解质性能的影响
4. Synthesis of anhydrous proton conducting diblock copolymers for polymer electrolyte membrane fuel cells via ATRP and click chemistry [C] . Xiaorui Chen, Derek Luong, Sergio Granados-Focil National Meeting Exhibition . 2013

机译：通过ATRP合成高分子电解质膜燃料电池的无水质子传导二嵌段共聚物，然后单击化学
5. Modeling, simulation and experimental validation of polymer electrolyte membrane fuel cells and alkaline membrane fuel cells [D] . Martins, Lauber De Souza. 2011

机译：聚合物电解质膜燃料电池和碱性膜燃料电池的建模，仿真和实验验证
6. Traditional Sol-Gel Chemistry as a Powerful Tool for the Preparation of Supported Metal and Metal Oxide Catalysts [O] . Serena Esposito 2019

机译：传统溶胶-凝胶化学是制备负载型金属和金属氧化物催化剂的有力工具
7. A Sol-Gel Modified Alternative Nafion-Silica Composite\ud Membrane for Polymer Electrolyte Fuel Cells [O] . Sahu, A.K., Selvarani, G., Pitchumani, S., 2007

机译：溶胶-凝胶改性的替代Nafion-二氧化硅复合材料\ ud 聚合物电解质燃料电池用膜

Co-localized AFM-Raman: A powerful tool to optimize the sol-gel chemistry of hybrid polymer membranes for fuel cell

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