单位代码 10476
学号 1503183015
桂花膏
分类号
O614
硕士学位论文
氨硼烷(NH 3BH 3)水解释氢及金属硼烷(KB 3H 8)
与MCl 2(M = Ni, Co)反应研究
学科、专业：无机化学
忏悔怎么读研究方向：硼化学
申请学位类别：理学硕士
转正群众意见申请人：冯笑阁 指导教师：陈学年 教授
二〇一八年五月
STUDIES ON THE HYDROLYSIS OF AMMONIA BORANE AND THE REACTIONS OF METAL BORANE (KB3H8) WITH MCl2 (M = Ni, Co)
A Disrtation Submitted to
年休假管理办法the Graduate School of Henan Normal University
in Partial Fulfillment of the Requirements
结束语怎么写for the Degree of Master of Science
By
Xiaoge Feng
Supervisor: Prof. Xuenian Chen
May, 2018
摘要
氨硼烷和金属硼烷作为储氢和制氢一体化材料受到大家的广泛关注，近年来，关于催化氨硼烷和金属硼烷释氢的研究越来越多，其中，使用催化剂是主要的研究方向。本论文的研究分为两个方面：
（1）氨硼烷的含氢高，室温下稳定，在水中溶解度好，是一种很有前景和实际应用价值的储氢材料。本论文中制备了一种催化氨硼烷水解释氢的催化剂。以硬质碳球为模板，三水合硝酸铜为前驱体，通过改变溶液中Cu2+的浓度和溶液中乙醇和水的配比，合成出了一种具有不同壳层厚度和孔径大小的氧化铜空心球材料。动力学研究表明，用此材料催化氨硼烷水解反应释氢的最大速率达到294 mL H2 min−1 (g catalyst)−1。该催化剂原料廉价易得，制备过程简单易行，催化性能良好，为选择合适的催化剂催化氨硼烷水解提供了一个很好的路径。
（2）金属硼氢化物KB3H8不仅用作储氢材料被大家广泛研究，还作为还原剂应用到各类有机无机反应中。本论文中研究了KB3H8与过渡金属氯化物之间的反应。在溶液中，KB3H8与过渡金属离子发生氧化还原反应，过渡金属离子被还原为金属单质；在含一定氮配体存在的条件下，过渡金属离子不再腐乳的功效与作用
与B3H8－阴离子发生氧化还原反应，而是生成一种新的胺合过渡金属硼氢离子化合物，这种化合物可以作为新的储氢材料，也可以作为合成新的过渡金属硼化物的前驱体。
关键词：氨硼烷，过渡金属氧化物，空心球，B3H8－，氧化还原反应
ABSTRACT
Ammonia borane and metal boranes have attracted extensive attention as hydrogen storage materials. Catalytic dehydrogenation of ammonia borane and metal boranes has been increasing in recent years. The study includes two parts.
(1) Ammonia borane is stable at room temperature and has high hydrogen content and good solubility in water. It is a promising potential hydrogen storage material. In this disrtation, By using a hard carbon sphere as a template and copper nitrate trihydrate as a precursor, turning the concentration of Cu2+ in the solution and the ratio of ethanol to water in the solvent, a copper oxide hollow sphere material with different shell thickness and pore size was synthesized. Kinetic studies showed that the maximum rate of hydrogen relea from the ammonia borane hydrolysis reaction using this catalyst reached 294 mL H2 min−1 (g catalyst )−1. The catalyst material is inexpensive and easily available and the preparation process is simple and contrallable. All the advantages ind
观音菩萨传奇icated that the copper oxide hollow sphere is an altenative choice for the catalytic dehydrogenation of ammonia borane.
(2) The potassium borane KB3H8 is not only widely ud as a hydrogen storage material, but also as a reducing agent in various organic and inorganic reactions. In this paper, the reactions between KB3H8 and transition metal chloride (NiCl2 and CoCl2) were studied. In THF or aqueous solution, the redox reaction occurred and the transition metal ions were reduced to metal; However, in the prence of certain nitrogen-containing ligand (ethylenediamine), the redox reaction would not be happened instead of a methathesis reaction took place to produce a new amine transition metal borohydride compound, which can probable be a new hydrogen storage material ora precursor for the synthesis of new transition metal borides.
KEY WORDS: Ammonia borane, transition metal oxide, hollow sphere, B3H8－, redox reaction
目录
摘要........................................................................................................................................... I ABSTRACT ............................................................................................................................. III 目录......................................................................................................................................... V 第一章前
言. (1)
1.1 引言 (1)
1.1.1 氢能的简介 (1)
1.1.2 氢能的储存 (1)
1.1.3 氢气的制备 (3)
1.2 氨硼烷 (4)
1.2.1 氨硼烷的简介 (4)
1.2.2 氨硼烷释氢方式 (4)
1.2.3 氨硼烷水解机理 (5)
1.3 氨硼烷水解释氢催化剂的研究 (6)
1.3.1 贵金属催化剂 (6)
1.3.2 非贵金属催化剂 (8)
1.4 空心微球材料的研究现状 (9)
1.4.1 金属氧化物空心球的制备方法 (10)
1.4.2 以碳球为模板制备空心微球材料 (11)
订婚戒指戴哪只手1.5 金属硼烷的研究现状 (12)
1.5.1 B3H8－的结构和性质 (12)
1.5.2 B3H8－盐的合成 (14)
1.5.3 B3H8－的应用 (15)
1.6 研究内容及意义 (18)
第二章氧化铜空心球的制备及催化氨硼烷(NH3BH3)水解制氢 (21)
2.1 研究背景 (21)
2.2 实验部分 (22)
