Ni0.4Cu0.6/POM-CN光催化氨硼烷水解制氢性能
DOI:
CSTR:
作者:
作者单位:

安徽工业大学

作者简介:

通讯作者:

中图分类号:

基金项目:


Photocatalytic hydrogen production performance of Ni0.4Cu0.6/POM-CN for hydrolysis of ammonia borane
Author:
Affiliation:

Anhui University of Technology

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    以三聚氰胺为前躯体,氯化锂为模板剂,通过熔盐法合成碳氮纳米片(CN),以六氯三聚磷腈和2,6-二氨基吡啶为反应物,以四氢呋喃为溶剂,向其中加入一定量的三乙胺,通过溶剂热法合成含环磷腈聚合物载体(POM),两者混合采用熔盐法和溶剂热法得到二维层状结构复合载体(POM-CN),以POM-CN为载体采用浸渍还原法制备出一系列NiCu/POM-CN催化剂。基于TEM、SEM、XPS、XRD、FT-IR和UV-vis DRS表征,对催化剂的微观结构进行分析,考察了催化剂形貌结构以及光催化对氨硼烷(AB)水解制氢性能的影响。实验结果表明,在可见光的照射下,Ni0.4Cu0.6/POM-CN催化剂TOF值高达1774.6 h-1,是无可见光条件下TOF值的2.8倍(618.1 h-1),说明催化剂具有较好的光催化性能。同时,催化剂在经过5次循环测试后依然保持着较高的催化活性。此外,Ni0.4Cu0.6/POM-CN催化剂在有光条件下反应的活化能为52.75 kJ?mol-1。表征结果表明,催化剂具有优异的催化活性得益于POM-CN复合载体、NiCu双金属的合金效应以及金属与载体间的强烈的相互作用。
    关键词:熔盐法;溶剂热法;光催化;氨硼烷;水解制氢
    中图分类号:TQ630???? 文献标识码: A ??? 文章编号:

    Abstract:

    Carbon and nitrogen nanosheets (CN) were synthesized by the molten salt method using melamine as the precursor and lithium chloride as the templating agent, and the cyclic phosphonitrile-containing polymer carrier (POM) was synthesized by the solvothermal method using hexachlorotrisphosphononitrile and 2,6-diaminopyridine as the reactant, tetrahydrofuran as the solvent, and a certain amount of triethylamine was added to it, and the two were mixed to obtain the composite carrier with a two-dimensional laminar structure using the molten salt method and solvothermal method (POM-CN), and a series of NiCu/POM-CN catalysts were prepared by impregnation reduction method using POM-CN as the carrier. Based on TEM, SEM, XPS, XRD, FT-IR and UV-vis DRS characterization, the microstructures of the catalysts were analyzed, and the effects of the catalyst morphology and structure as well as photocatalysis on the hydrolysis performance of ammonia-borane (AB) for hydrogen production were investigated. The experimental results showed that under the irradiation of visible light, the TOF value of Ni0.4Cu0.6/POM-CN catalyst was as high as 1774.6 h-1, which was 2.8 times higher than that of the TOF value under the condition of no visible light (618.1 h-1), indicating that the catalyst had a good photocatalytic performance. Meanwhile, the catalyst still maintained a high catalytic activity after five cycle tests. In addition, the activation energy of the Ni0.4Cu0.6/POM-CN catalyst for the reaction in the presence of light was 52.75 kJ?mol-1. The characterization results indicated that the catalysts possessed excellent catalytic activity thanks to the POM-CN composite carrier, the alloying effect of the NiCu bimetal, and the strong interactions between the metal and the carrier.

    参考文献
    相似文献
    引证文献
引用本文

李蓉,康梦奇,陈辛顺,冯佳佳,许立信,万超. Ni0.4Cu0.6/POM-CN光催化氨硼烷水解制氢性能[J].精细化工,2025,42(6):

复制
相关视频

分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-06-03
  • 最后修改日期:2024-08-13
  • 录用日期:2024-07-15
  • 在线发布日期: 2025-06-06
  • 出版日期:
文章二维码