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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：中国科学院金属研究所
学位：博士
所在单位：材料科学与工程学院
学科：材料物理与化学. 材料学
办公地点：新三束实验室201
联系方式：0411-84706130
电子邮箱：dongxl@dlut.edu.cn
Direct observation of low-temperature catalytic decomposition of H3BO3 shell in core/shell Ni/H3BO3 nanoparticles
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论文类型：期刊论文
发表时间：2012-08-01
发表刊物：APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
收录刊物：SCIE、EI、Scopus
卷号：108
期号：2
页面范围：487-489
ISSN号：0947-8396
摘要：Decomposition of H3BO3 to B2O3 in core/shell Ni/H3BO3 nanoparticles was in situ recorded by transmission electron microscope as the irradiation time. The direct observation provides compelling evidence of the synergetic effect of the Ni core and the H3BO3 shell, revealing the catalytic mechanisms of metal nanostructures that induce the decomposition at 124 A degrees C, lower than the bulk counterpart at 300 A degrees C. This phenomenon can be theoretically explained by considering the weakening of B-O bond at the Ni-H3BO3 interface, and has important implications in understanding the lubricant behavior of H3BO3 in frictional wear.