新型三维石墨烯制氢催化剂制备及性能
时间:2019-08-04 16:08 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：这篇报告是以能为燃料电池自给氢气为出发点，利用硼氢化钠水解制氢的基本反应体系，研制出制氢催化效率高，持续性好，经久耐用，性能稳定的新型催化剂，以望能够为催化剂的研究以及燃料电池应用方面提供一些经验与贡献。研究采用以泡沫镍负载，利用CVD法制备出的三文石墨烯为载体，分别使用电镀和化学镀的方法在所制备的三文石墨烯载体上负载金属钌制备出两种类别的催化剂。然后从催化剂的制备与表征，催化性能的测试等方面进行研究分析，最终实现制备出效率高、寿命长、可部分循环利用的新型催化剂。对照前人在这方面的努力与制备出的多样催化剂，本研究制备的催化剂拥有良好的性能，可望应用于实际生产和推进燃料电池供氢系统催化剂的改进工作。 38040 毕业论文关键词：泡沫镍 CVD 三文石墨烯负载钌 电镀法 硼氢化钠 New three-dimensional structure graphene research of preparation of catalyst for hydrogen production Abstract: This report is based on self-sufficiency in energy for the hydrogen fuel cell as a starting point, the reaction system using the basic hydrolysis of sodium borohydride hydrogen production, hydrogen developed a high catalytic efficiency, continuity is good, durable, stable performance of the new catalyst, Wang able to study and application of fuel cell catalyst to provide some experience and contribution. Study with nickel foam load, use equipment out of the three-dimensional graphene CVD method as the carrier, respectively, using electroplating and electroless plating process for preparing a catalyst for the two categories of the three-dimensional graphene prepared carrier supported metal ruthenium. Then research and analysis from preparation and characterization, test and other aspects of the catalytic properties of the catalyst, the final preparation of high efficiency, long life, new catalyst can be partially recycled. Control predecessors put in this effort and to prepare the surface of various catalysts, catalyst prepared in this study has a good performance is expected to be applied to the actual production and promote hydrogen fuel cell systems for improving the working catalyst. Keywords: nickel foam CVD sodium borohydride plating three-dimensional graphene ruthenium 目录 摘 要 .. I 1 绪论 ..1 1.1前言 1 1.2制氢的方法 2 1.3 硼氢化钠水解制氢 .3 1.3.1硼氢化钠水解法制取氢气的基本原理 ..3 1.3.2硼氢化钠水解制氢催化剂的研究进展 ..5 1.3.3小结 7 1.4石墨烯 ..8 1.4.1石墨烯的结构和特性 .8 1.4.2石墨烯的发展 ..8 1.4.3 三文石墨烯对重金属的吸附性 .9 1.5 选题和研究思路 10 2 研究方案 11 2.1 研究目标 . 11 2.2 研究方法 . 11 2.2.1 泡沫镍负载三文石墨烯载钌催化剂 11 2.2.2 硼氢化钠水解制氢 .. 11 2.3 技术路线 12 3 实验部分 .. 13 3.1 实验材料 13 3.2 实验仪器 14 3.3 实验步骤 14 3.3.1 泡沫镍预处理 . 14 3.3.2 催化剂的制备 . 14 3.3.2.1 CVD法制备三文石墨烯 . 14 3.3.2.2电镀法 .. 15 3.4 催化剂产氢速率测试方法及实验装置 . 16 3.5重金属Ru 的回收 17 3.5 微观结构及形貌表征方法 . 18 3.5.1 XRD 18 3.5.2 SEM 18 3.5.3 XPS . 18 3.5.4 EDS . 19 3.5.5拉曼光谱 . 19 (责任编辑：qin) |