Annealed Crystallization and Catalytic activity of Ultrafine NiB Amorphous Alloy-中国期刊网

摘要 AUltrafineamorphousNiBalloywaspreparedviachemicalreductionmethod;ItsstructuresduringthecrystallizatioinprecesswascharacterizedbysuchtechniquesasDifferentialthermalanalysis(DTA),X-rayabsorptionfinestructure(XAFS)andX-raydiffraction(XRD),andcorrelatedtothecatalyticpropertiesforbenzenehydrogenation.ItwasfoundthatthecrystallizationofamorphousNiBalloywascarriedoutintwosteps,asindicatedbytwoexothermicpeakscenteredat598and652Krespectively.Duringthefirststep.twometastablecrystallinephases,i.e.,Ni3BandanoaocrstallineNiphase(Ni-richNiBalloy),wereformed.Furtherannealingathighertemperatureof652KmayresultinthedecompositionofcrystallineNi3BandaggregationofnanocrystallineNi,thebenzenehydrogenationisoptimizedaroundtheannealingtemperatureof623K.ItmostprobablyresultsfromthemaximumamountofactivesiteonnanocrystallineNiformedbythermaltreatmentatappropriateannealingtemperature.

1WUWei SUYong CHENYiqing CHENYuanxi HULei. Crystallization and microstructure evolution of amorphous Al85Y4Nd4Ni7 alloy.金属材料,2004-04.
2舒小林;张邦维;张恒;谭肇升. New Scheme for Estimating the Free Energy of Crystallization of Amorphous Alloys.金属材料,1992-02.
3JIN Rui-min LU Jing-xiao FENG Tuan-hui YANG Shi-e ZHANG Li-wei. Solid-phase Crystallization of Hydrogenated Amorphous Silicon on Glass Substrates.物理电子学,2006-01.
4WANGHuanrong;YEYifu;等. Crystallization of amorphous Zr70Cu30—xNix alloys.金属材料,2002-03.
5KeqiangQIU;QingshengZHANG;等. Oxygen Behavior in Bulk Amorphous Zr—base Alloy.材料科学与工程,2002-01.
6JINRui-min LUJing-xiao LIRui WANGHai-yan FENGTuan-hui. Solid-phase Crystallization of Amorphous Silicon Films by Rapid Thermal Annealing.物理电子学,2005-01.
7ZHONGBoqiang;HUANGCixiang;等. Amorphous Silicon Films Prepared by Catalytic Chemical Vapor Deposition Method.物理电子学,1998-01.
8RAORui XUZhong-yang等. Al-induced Lateral Crystallization of Amorphous Si Thin Films by Microwave Annealing.材料科学与工程,2002-04.
9雷阿利;唐文浩;冯拉俊. Research on fabricating Fe base amorphous alloy by bar plasma spraying.焊接,2007-03.
10韦岳长;赵震;焦金庆;刘坚;段爱军;姜桂元. Preparation of ultrafine Ce-based oxide nanoparticles and their catalytic performances for diesel soot combustion.有色金属冶金,2014-02.

Annealed Crystallization and Catalytic activity of Ultrafine NiB Amorphous Alloy

来源期刊

相关推荐

同分类资源更多

相关关键词

Annealed Crystallization and Catalytic activity of Ultrafine NiB Amorphous Alloy

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多