ARTICLE

• The Influence of Dealumination Methods on the Properties of Mordenites
• Li Bang-Yin; Gao Zi
• High silica mordenites with Si/Al ratios in the range of 6-15 were prepared by acid leaching, steaming plus acid leachin...
• 1991, 7 (01): 1-9 DOI: 10.3866/PKU.WHXB19910101

• 3126Abstract/Metrics
• 2424 PDF(6979KB)

• Investigation of the Reducibility of La_2-xSr_xNiO₄ System and the Study of Reducible Mechanism for La_1.7Sr_0.3NiO₄
• Du Shao-Bin; Zheng Hong-Yuan; Ma Fu-Tai; Lv Guang-Lie
• A series of La_(2-x)Sr_xNiO_4(0.0≤x≤1.0) oxides with the tetragonal K_2NiF_4 structure were prepared. The cell parameter...
• 1991, 7 (01): 10-15 DOI: 10.3866/PKU.WHXB19910102

• 3106Abstract/Metrics
• 2539 PDF(4533KB)

• Dispersion of α-Fe₂O₃ on NaY Zeolites
• Yang Xun-Min; Zhang Bin; He He-Yong; Gao Zi
• The α-Fe_2O_3/NaY zeolite samples were prepared by impregnating NaY zeolite with ammonium ferrioxalate solution and calc...
• 1991, 7 (01): 16-21 DOI: 10.3866/PKU.WHXB19910103

• 2889Abstract/Metrics
• 2632 PDF(4847KB)

• Investigation of the Mechanism of Gamma Radiolysis of Ethanol
• Wu Ji-Lan; Su Ya-Li; Qi Sheng-Chu; Wang Wen-Qing; Zhang Xu-Jia
• 本文研究了氧、温度和4-甲基-4-苯基-2-戊酮(Mpp)对乙醇辐解的影响。Mpp在实验使用的浓度范围内对乙醛的G值没有影响, G(2,3-丁二醇)值随Mpp浓度增加而下降, 最后达0.9恒值。使用Mpp求得原初过程形成的G_(H_2)=1...
• 1991, 7 (01): 22-29 DOI: 10.3866/PKU.WHXB19910104

• 4319Abstract/Metrics
• 2614 PDF(5429KB)

• A Quantum Chemical Study on the Mechanism of Thermolysis of Nitroguanidine
• Hong San-Guo; Fu Xiao-Yuan
• MINDO/3 MO method has been used to study the mechanism of thermolysis of nitroguanidine. The geometric structures of the...
• 1991, 7 (01): 30-35 DOI: 10.3866/PKU.WHXB19910105

• 2892Abstract/Metrics
• 2410 PDF(3848KB)

• Infrared Spectra Studies of Butanols in Carbon Tetrachloride, n-Heptane, Benzene and 1,2-Dichloroethane
• Wang Yi-Xuan; Zhao Jian-Ping; Dai Ming
• The self-association of isomeric butanols in carbon tetrachloride, n-heptane, benzene and 1,2-dichloroethane has been st...
• 1991, 7 (01): 36-42 DOI: 10.3866/PKU.WHXB19910106

• 3590Abstract/Metrics
• 2394 PDF(5384KB)

• Calorimetric Study of the Influence of Hydration and pH Upon the Thermally-Induced Conformational Transition of Proteinase K
• Wang Bang-Ning; Tan Fu
• Differential scanning calorimetry was used to investigate the thermal denaturation of the proteinase K (EC 3.4.21.14) in...
• 1991, 7 (01): 43-48 DOI: 10.3866/PKU.WHXB19910107

• 3553Abstract/Metrics
• 2602 PDF(5317KB)

• Excess Volumes for (Tetrachlorloromethane+Lewis Bases) and for (Trichloromethane+Lewis Bases)
• Gong Hua; Jiang Yong-Ji; Wang Yi; Chen Ming-Zhi; Zheng Guo-Kang
• Excess volumes have been measured by means of a continuous dilution dilatometer or a vibrational tube densimeter for bot...
• 1991, 7 (01): 49-56 DOI: 10.3866/PKU.WHXB19910108

• 3512Abstract/Metrics
• 2473 PDF(6183KB)

• Thermodynamics of Electrolyte Mixtures Activity Coefficients in Aqueous Na₂SO₄-CuSO₄ at 25 ℃
• Yao Yan; Atkinson, G.
• In previous reports the ternary system Na_2SO_4-CuSO_4-H_2O was investigated by osmotic coefficient and solubility work....
• 1991, 7 (01): 57-63 DOI: 10.3866/PKU.WHXB19910109

• 3660Abstract/Metrics
• 2270 PDF(5280KB)

• Study on the Electronic Structure of Five Coordinate Iron-Sulfur Clusters with Two Irons
• Liu Guang-Hua; Li Le-Min; Xu Guang-Xian; Liang Zhen-Xuan
• The electronic structure and chemical bonding of the five coordinate iron clusters [Fe(XCHCHS)_2]_2~n-[X=O, (Ⅰ); X=S, (Ⅱ...
• 1991, 7 (01): 64-71 DOI: 10.3866/PKU.WHXB19910110

• 3352Abstract/Metrics
• 2529 PDF(6576KB)

• FT-IR Spectroscopic Study on Langmuir-Blodgett Films of Stearic Acid
• Liang Ying-Qiu; Jiang Yu-Tao; Tian Yong-Chi
• FT-IR transmission spectra of the 3—11 monolayer Langmu ir-Blodgett(LB) films of stearic acid, have been observed compar...
• 1991, 7 (01): 72-76 DOI: 10.3866/PKU.WHXB19910111

• 3555Abstract/Metrics
• 2557 PDF(4246KB)

• Study on the Thermal Motion N-Phenylphthalimide and 2-Phenylquinoxaline in Solid State
• Yang Qing-Chuan; Li Yi-Li; Tang You-Qi; Fu Heng
• On the basis of the data of single crystal structure analysis, the thermal motion analysis for the crystal molecules of ...
• 1991, 7 (01): 77-81 DOI: 10.3866/PKU.WHXB19910112

• 3241Abstract/Metrics
• 2593 PDF(3801KB)

• Thermodynamic and Calorimetric Study on the Formation of Binary Complex Compounds of Nickel(II) with some α-Amino Acids and Oxalate
• Lin Hua-Kuan; Zhou Zhi-Fen; Gu Zong-Xin; Chen Rong-Ti
• The stability constants of binary complex compounds of nickel (Ⅱ) with Lproline, L-valine, α-aminoisobutyric acid and ox...
• 1991, 7 (01): 82-86 DOI: 10.3866/PKU.WHXB19910113

• 3358Abstract/Metrics
• 2386 PDF(3568KB)

• Resonance Raman Spectra of Intermediates in Oxidation of Phenothiazine and Phenoxazine
• Sun Kai; Xu Guang-Zhi
• The resonance Raman spectra of phenothiazine radical cation, phenothiazine dication and phenoxazine dication have been r...
• 1991, 7 (01): 87-91 DOI: 10.3866/PKU.WHXB19910114

• 2881Abstract/Metrics
• 2327 PDF(4468KB)

• Specific Salt Effects on the Determination of Catalytic Constants of Hydrolysis
• Zhang Ben-Li; Tan Chang-E; Gao Zhen-Heng
• In order to investigate the influences of specific salt effect of added electrolyte on the classic buffer experiments fo...
• 1991, 7 (01): 92-96 DOI: 10.3866/PKU.WHXB19910115

• 3601Abstract/Metrics
• 2406 PDF(4124KB)

• The Calorimetric Study of Fe-Ni-V Solid Alloy Systems
• Cheng Shu-Wu; Peng Ming; Fan Min
• A twin, differential, high-temperature calorimeter for the measuremens of enthalpies of formation and transformation in ...
• 1991, 7 (01): 97-101 DOI: 10.3866/PKU.WHXB19910116

• 3030Abstract/Metrics
• 2432 PDF(3783KB)

Note

• The DNMR Spectra of Intramolecular Process in Mg-ang Ca-1,2-PDTA Complexes
• Song Rui-Fang; Ba Yong; Zhang Gui-Sheng; Li Ying; Qiu Zu-Wen
• The DNMR Spectra of the intramolecular processes occurring in Mg-, Ca-, Sr-and Ba-1,2-propylenediamine-tetraacetic acids...
• 1991, 7 (01): 102-105 DOI: 10.3866/PKU.WHXB19910117

• 3263Abstract/Metrics
• 2556 PDF(3198KB)

• Study on Thermodynamic Characteristics of 4-Trifluorocoumarin Derivatives
• Zhang Xing-Kang; Huang Wei-Jun; Tan Fu; Xu Guang-Zhi; Wu Zheng-Liang
• This paper describes the DSC study of 4-trifluorocoumarin derivatives, C_(481), C_(485), C_(500) and C_(480), providing ...
• 1991, 7 (01): 106-109 DOI: 10.3866/PKU.WHXB19910118

• 2964Abstract/Metrics
• 2359 PDF(2745KB)

• Determination of the Surface Area and Crystal Hibit of An AgBr Dispersion
• Zhou Jin-Wei; Shen Jie-Ru
• The surface area and crystal hibit of an AgBr dispersion were determined by a in situ method. In this method, the differ...
• 1991, 7 (01): 110-112 DOI: 10.3866/PKU.WHXB19910119

• 3365Abstract/Metrics
• 2362 PDF(2531KB)

• SAXS Study of the Structure of Liquid Crystal of 5%H₂O-PC in Benzene, Methylbenzene and Chlorobenzene
• Yao Song-Nian; Cao Lian-Xin
• It was found by means of the small angle X-ray scattering (SAXS),that layer distance of the liquid-crystal system consis...
• 1991, 7 (01): 113-116 DOI: 10.3866/PKU.WHXB19910120

• 3311Abstract/Metrics
• 2214 PDF(3100KB)

• SAXS Studies of the Structure of Liquid Crystal 5%H₂O-PC in Solutions of NaCl、KCl、Na₂CO₃、K₂CO₃
• Yao Song-Nian; Cao Lian-Xin
• This paper describs the structural character of liquid-crystal of 5%H_2O-egg yolk phospholipid (PC) containing in avario...
• 1991, 7 (01): 117-120 DOI: 10.3866/PKU.WHXB19910121

• 3266Abstract/Metrics
• 2306 PDF(2663KB)

• Study on Solubilities of Nitrogen in Mixed Solvents of N-Octane and N-Heptane at High Pressures
• Han Bu-Xing; Yan Hai-Ke; Hu Ri-Heng
• Solubilities of nitrogen in binary mixtures of n-octane and n-heptane have been measured at temperatures from 20 to 70 ℃...
• 1991, 7 (01): 121-124 DOI: 10.3866/PKU.WHXB19910122

• 3235Abstract/Metrics
• 2417 PDF(2842KB)

• Measurement of the Activation Energy of Oxygen Offering and Reproducing on Pt/HM,Pd/HM Catalysts
• Zheng Xiao-Ming; Gu Yue-Peng; Jin Song-Shou
• Pulse-reacting experiments of gaseous CO with catalyst surface oxygen and gaseous O_2 with reduced catalyst surface were...
• 1991, 7 (01): 125-128 DOI: 10.3866/PKU.WHXB19910123

• 4488Abstract/Metrics
• 2426 PDF(3177KB)