期刊论文

Preparation and Performance of Black Liquor Lignin Basic Activated Woodceramics Doped Ni

Yu Xian-Chun

中文

无机材料学报

1000-324X

2018

33

12

1289-1296

10.15541/jim20180098

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670572, 31270611]

本校为第一且通讯机构

以造纸黑液木质素和NiCl2·6H_2O为原料、经1200℃高温烧结制备Ni掺杂木材陶瓷,并用KOH进行活化处理,得到呈泡沫状的三维网络结构的Ni掺杂活化石墨化木材陶瓷。采用X射线衍射(XRD)、拉曼光谱(RS)、扫描电镜(SEM)、透射电镜(TEM)、比表面积测试仪及电化学工作站等对其性能进行分析与表征。结果表明: Ni既参与构筑木材陶瓷骨架,又对无定形碳进行催化石墨化。所制备样品的石墨化倾向明显,有石墨烯片层结构出现,部分晶格间距接近理想石墨的点阵参数。同时,活化处理可以有效地形成多层次孔隙结构,增加微孔与超微孔数量。 800℃活化3 h后,样品中的孔径主要集中在3.60 nm左右,比表面积从359 m~2·g~(-1...

Ni doping woodceramics were prepared from papermaking black liquor lignin and NiCl2•6H2O, which sintered at 1200℃ and then activated with KOH. The Ni doping activated graphite woodceramics presents 3-D net structure with foam formation. X-ray diffraction, Raman spectrum, scanning electron microscope, transmission electron microscope, specific surface area tester, and electrochemical workstation were employed to characterize the samples. The results show that Ni constructs the framework of woodceramics, and catalyzes graphitization of amorphou...