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J. Cent. South Univ. (2017) 24: 1953-1958 DOI: https://doi.org/10.1007/s11771-017-3603-9 Activities of laccase produced by a strains Penicillium simplicissimum induced by chemical agentia and UV.... PDA-RBBR (Remazal Brilliant Blue R) medium was used for the screening of the strains, which is able to produce enzymes. After the mutation process in Penicillium simplicissimum induced by chemical......
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Preparation of copper nanoparticles by chemical reduction method using potassium borohydride ZHANG Qiu-li(张秋利)1, YANG Zhi-mao(杨志懋)2, DING Bing-jun(丁秉钧)2, LAN Xin-zhe(兰新哲)1, GUO Ying-juan(郭莹娟)1... by chemical reduction method using potassium borohydride as reducing agent. The effects of reactant ratio, concentration of CuSO4, reaction temperature, and dispersant on the size of product and conversion......
High Temperature Chemical Reaction of La2O3 in H3BO3-C System Xu Jingyu1,Wu Wenyuan1,Tu Ganfeng1,Peng Kewu1 (1.School of Material and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract:The high temperature chemical reaction process of La2O3 in H3BO3-C system was studied by means of XRD and TG-DTA. The results showed that dehydration reaction of H3BO3 occurred......
Non-equilibrium segregation of boron on grain boundary in Fe-30%Ni alloyBing Cao, Xuemin Wang, Huaiyang Cui, and Xinlai HeEditorial Department of J. Univ. Sci. Technol. Beijing, Beijing 100083... segregation during recrystallization and the influence of pre-deformation in Fe-30% Ni Alloy at 1000癈 was investigated by the PTA (particle tracking autoradiography) technique, optical and electron......
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Preparation of ultrafine nickel powder by wet chemical process CHEN Rui-ying(陈瑞英), ZHOU Kang-gen(周康根) School of Metallurgical Science and Engineering, Central South University, Changsha 410083... with narrow size distribution. Key words: ultrafine nickel powder; chemical reduction; tap density; multiplayer ceramic capacitor 1 Introduction Driven towards smaller size, higher capacitance and lower......