Synthesis of nickel borides in molten salts at elevated temperatures and thermodynamic characterization of the system Ni-B

被引：2
|
作者：
Burkmann, Konrad [1 ]
Stoerr, Bianca [1 ]
Seidel, Juergen [1 ]
Bohmhammel, Klaus [1 ]
Mertens, Florian [1 ]
机构：
[1] TU Bergakademie Freiberg, Inst Phys Chem, Leipziger Str 29, D-09599 Freiberg, Sa, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2023年 / 78卷 / 7-8期
关键词：
Calphad method; molten-salt synthesis; nickel borides; thermodynamic calculation; HYDROGEN EVOLUTION; SODIUM-BOROHYDRIDE; METAL; REDUCTION; CHEMISTRY; CATALYSTS; DENSITY; ACETATE;
D O I：
10.1515/znb-2023-0002
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
This article focuses on the synthesis of nickel borides in different molten-salt systems (eutectic NaCl/KCl and borax) at elevated temperatures. The differences in the thermodynamic stability of different nickel borides and the formation of NiB in an eutectic halite-sylvine mixture at T = 950 & DEG;C with different nickel-containing starting materials (NiO, Ni) has been elucidated. The results are compared to theoretical data calculated by the Calphad method. The results of the analysis shows that NiB2, if it exists, may only form a metastable phase.
引用
收藏
页码：407 / 415
页数：9
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