Communication

• PREPARATION AND STRUCTURAL STUDY OF 110 K SUPERCONDUCTING PHASE IN Bi (Pb)-Sr-Ca-Cu-O SYSTEM
• Lu Weijing; Zhang Yufen; Zheng Xiangmiao; Wei Chengqian; Wei Zhaoqing; He Jun
• The stable superconducting phase with T_c 110 K has been prepared in samples of nominal composition (Bi_(2-x)Pb_x)Sr_2Ca...
• 1989, 5 (02): 129-134 DOI: 10.3866/PKU.WHXB19890201

• 1903Abstract/Metrics
• 2166 PDF(2163KB)

ARTICLE

• ESR STUDY ON THE FREE RADICAL INTERMEDIATES FORMED DURING THE PHOTOLYSIS OF METHYL PHENYLDIAZONIUM SALTS AND THEIR CROWN ETHER COMPLEXES
• Liu Yang; Xu Guangzhi; Zhao Yaoxing; Sun Xiangyu
• Active free radicals formed by the photolysis of methyl substitute phenyldiazonium and their crown ether complexes have ...
• 1989, 5 (02): 135-140 DOI: 10.3866/PKU.WHXB19890202

• 1963Abstract/Metrics
• 2066 PDF(1937KB)

• THE STRUCTURAL EFFECT OF POLYPHENOXY BENZNE COMPOUNDS——THE CRYSTAL STRUCTRE OF 1,4-BIPHENOXYBENZENE AND 1,4-BIS (4-METHOXYPHENOXY) BENZENE
• Liu Yuming; Guo Fang; Dai Cuichen; Chen Zhendong; Hong Shunian
• The Crystal structure of 1,4-Biphenoxybenzene (Ⅰ) and 1,4-Bis (4-Methoxyphenoxy) benzene (Ⅱ) have been determined by X-r...
• 1989, 5 (02): 141-144 DOI: 10.3866/PKU.WHXB19890203

• 2153Abstract/Metrics
• 1881 PDF(1481KB)

• SORPTION AND DIFFUSION OF XYLENES IN ZSM-5 ZEOLITES
• Zeng Zhaohuai; Pan Guisheng
• The equilibrium isotherms have been determined gravimetrically for xylenes in HZSM-5 and MgHZSM-5 zeolites at the temper...
• 1989, 5 (02): 145-150 DOI: 10.3866/PKU.WHXB19890204

• 2605Abstract/Metrics
• 1997 PDF(2236KB)

• HE PHASE TRANSFER OF CO(Ⅱ) CATALYZED BY 2,2′-BIPYRIDINE AT THE WATER/NITROBENZENE INTERFACE
• Liu Yuqing; Wang Erkang
• The chemical reactions coupled with the phase transfer of Co(Ⅱ) catalyzed by 2,2′ -bipyridine across the water/nitrobenz...
• 1989, 5 (02): 151-155 DOI: 10.3866/PKU.WHXB19890205

• 1897Abstract/Metrics
• 2210 PDF(1666KB)

• THERMODYNAMIC ANALYSIS OF BINARY PHASE DIAGRAM INVOLVING AN INTERMEDiATE COMPOUND
• Li Ruiqing; Zhou Guozhi
• In a binary system involving an intermediate compound,if the liquidus has been measured, if the entropy or enthalpy of f...
• 1989, 5 (02): 156-162 DOI: 10.3866/PKU.WHXB19890206

• 2152Abstract/Metrics
• 1998 PDF(1941KB)

• INFINITZ DILUTE THERMODYNAMIC QUANTITIES OF ALCOHOLS IN INERT SOLVENTS BY GAS-IQUID CHROMATOGRAPHY
• Qiu Liyan; Zheng Guokang; Zhou Xiaoxian
• The infinite dilution activity coefficients γ_i, partial molar excess enthalpies H_i~E and entropies S_i~E of C_1—C_4 al...
• 1989, 5 (02): 163-167 DOI: 10.3866/PKU.WHXB19890207

• 2129Abstract/Metrics
• 1901 PDF(1878KB)

• THERMODYNAMICS OF ASSOCIATED SOLUTIONS OF ALCOHOLS IN INERT SOLVENTS
• Zheng Guokang; Qiu Liyan; Zhou Xiaoxian
• Under the condition of infinite dilution, the activity coefficients previously obtained have been treated by Kretschmer-...
• 1989, 5 (02): 168-172 DOI: 10.3866/PKU.WHXB19890208

• 2248Abstract/Metrics
• 1938 PDF(1769KB)

• AN INVESTIGATION ON PHASE DIAGRAM OF TERNARY SYSTEM PrCl₃-BaCl₂-LiCl
• Zheng Chaogui; Jin Jun; Qiao Zhiyu; Ye Yupu
• The phase diagram of ternary system PrCl_3-BaCl_2-LiCl has been investigated by means of DTA and X-ray diffraction analy...
• 1989, 5 (02): 173-177 DOI: 10.3866/PKU.WHXB19890209

• 2115Abstract/Metrics
• 2121 PDF(1569KB)

• ATALYTIC PERFORMANCE OF PILLARED INTERLAYERED CLAY MOLECULAR SIEVE WITH HIGH THERMAL STABILITY
• Gao Zi; Jiao Jinbao
• The surface acidity of a kind of pillared interlayered clay molecular sieve with high thermal and hydrothermal stabiliti...
• 1989, 5 (02): 178-184 DOI: 10.3866/PKU.WHXB19890210

• 2082Abstract/Metrics
• 1919 PDF(2332KB)

• ADSORPTION OF POLYETHYLENE GLYCOLS, POLYPROPYLENE GLYCOL AND POLYOXYETHYLENE-POLYOXYPROPYLENE BLOCK COPOLYMERS ON SOLID/LIQUID INTERFACES Ⅰ .ACTIVE CARBON/WATER INTERFACE
• Zhao Zhenguo; Gu Tiren
• The adsorption isotherms of polyethylene glycols(PEG,molecular weights of 400,1000, 3350, 6000 and 20000), one polypropy...
• 1989, 5 (02): 185-190 DOI: 10.3866/PKU.WHXB19890211

• 2308Abstract/Metrics
• 1891 PDF(1945KB)

• DETERMINING BIFURCATION OF BRUSSELATOR AND OREGONATOR BY LYAPUNOV EXPONENT
• Liu Junli; Gai Feng; Han Degang; Lin Qiuzhu; Gao Zhidi
• The variation of Lyapunov exponent of Brusselator and Oregonator with controlling parameters of systems has been calcula...
• 1989, 5 (02): 191-195 DOI: 10.3866/PKU.WHXB19890212

• 2336Abstract/Metrics
• 1932 PDF(1630KB)

• ACTIVE PHASE AND ROLE OF POTASSIUM IN POTASSIUM-PROMOTED IRON OXIDE CATALYST FOR DEHYDROGENATION OF ETHYLBENZENE
• Zhu Yixiang; Lin Rencun; He Danyun; Yan Jian
• Fe_2O_3-K_2O binary catalysts prepared by high temperature calcination of the relevant mixtures and by KOH solution impr...
• 1989, 5 (02): 196-201 DOI: 10.3866/PKU.WHXB19890213

• 2204Abstract/Metrics
• 1924 PDF(2226KB)

• ESR STUDIES OF CuTAPP SUPPORTED ON ACTIVE CARBON (Ⅱ)
• Lu Juntao; Liu Xiaoping; Zha Quansin
• ESR studies were carried out in detail to investigate the changes of CuTAPP (cppper tetra-(p-trimethylanmoniumphyenl) po...
• 1989, 5 (02): 202-205 DOI: 10.3866/PKU.WHXB19890214

• 1924Abstract/Metrics
• 2068 PDF(1840KB)

• INVESTIGATION OF DISPERSION OF NICKEL OXIDE ONTO THE SURFACE OF γ-ALUMINA BY EXAFS

• Jin Xianglin; Cai Xiaohai; Ge Zhihong; Xie Youchang; Tang Youqi

  Zhao Yaqin; Lu Kunquan

• EXAFS spectroscopy has been used to investigate the dispersion of NiO onto the surface of γ-Al_2O_3. The comparison of t...
• 1989, 5 (02): 206-209 DOI: 10.3866/PKU.WHXB19890215

• 2174Abstract/Metrics
• 2154 PDF(1611KB)

Note

• GROUP REACTIVITIES IN THE GAS PHASE REACTIONS OF HYDROXYL RADICALS WITH ETHERS
• Liu Renzhang*; Wallington; Timothy J. Dagaut; Philippe Kurylo; Michael J.
• 1989, 5 (02): 210-213 DOI: 10.3866/PKU.WHXB19890216

• 2223Abstract/Metrics
• 2148 PDF(1468KB)

• THE PREOSCILLATORY TIME AND PERIOD OF PHENOL-BrO₃-H₂SO₄ SYSTEM
• Gao Zhidi; Yu Baoqing; Liu Junli; Lin Qiuzhu
• The variation of preoscillatory time and period with initial concentration of every substance in the phenol-BrO_3~--H_2S...
• 1989, 5 (02): 214-217 DOI: 10.3866/PKU.WHXB19890217

• 2090Abstract/Metrics
• 1948 PDF(1348KB)

• INVESTIGATION OF Ba₂CdMoO₆ AND A NEW COMPOUND Sr₂CdMoO₆ CRYSTAL STRUCTURES
• Fu Zhengmin*; Ma Fengzhe; Mu Jianping
• The crystal structure of Ba_2CdMoO_6 have been investigated by means of X-ray powder method, precise measurement of latt...
• 1989, 5 (02): 218-223 DOI: 10.3866/PKU.WHXB19890218

• 1843Abstract/Metrics
• 1956 PDF(1890KB)

• PREDICTION OF EXCESS VOLUME AND EXCESS ENTHALPY FROM PROPERTIES OF PURE COMPONENTS——PROPOSAL OF A NEW EQUATION OF CORRELATION
• Zhang Jianhou*; Hou Huaiwen
• On the basis of a general functional relation representing the actual PVT properties of liquids, an equation of state of...
• 1989, 5 (02): 224-227 DOI: 10.3866/PKU.WHXB19890219

• 1987Abstract/Metrics
• 2061 PDF(1357KB)

• MODIFICATION OF THE EMPIRICAL POTENTIAL ENERGY FUNCTIONS
• Xu Zongrong; Tian Zhiyue*
• A general method to modify the empirical potential energy functions is proposed V(r)=W(r)V′(r) with correction function ...
• 1989, 5 (02): 228-231 DOI: 10.3866/PKU.WHXB19890220

• 1866Abstract/Metrics
• 2034 PDF(1308KB)

• A THEORITICAL STUDY ON THE INTERACTIONS OF FORMALDEHYDE AND ACETONE WITH TERPOLYMER OF FORMALDEHYDE AND ITS DERIVATIVES
• Cai Guoqiang*; Jing Fuqiang
• We have studied the interaction of acetone and formaldehyde with terpolymer of formaldehyde and its methyl-,nitrile-and ...
• 1989, 5 (02): 232-235 DOI: 10.3866/PKU.WHXB19890221

• 1927Abstract/Metrics
• 1909 PDF(1430KB)

• THE STUDY OF ATOMIC STRUCTURE OF THE Ti(0001)SURFACE BY LOW-ENERGY-ELECTRON-DIFFRACTION
• Lan Tian*; Xu Feiyue
• The present paper presents the results of a structural study of the clean Ti(0001) surface carried out by analysis of Lo...
• 1989, 5 (02): 236-238 DOI: 10.3866/PKU.WHXB19890222

• 1839Abstract/Metrics
• 1921 PDF(1132KB)

• STUDIES ON THERMOCHEMISTRY OF PORPHYRINS——Ⅳ.A PRECISION ROTATING-BOMB COMBUSTION CALORIMETER AND IT'S CALIBRATION
• Zhang Faming; Xu Guiduan*; Qu Songsheng
• A precision rotating-bomb combustion calorimeter in which thermistors were used as elements of temperature control and t...
• 1989, 5 (02): 239-242 DOI: 10.3866/PKU.WHXB19890223

• 1840Abstract/Metrics
• 2131 PDF(1386KB)

• THE TAFEL PLOT OF THIONYL CHLORIDE REDUCTION
• Li Changming*; Zha Quanxin
• The electrochemical behaviors of thionyl chloride reduction in 0.11 mol dm~(-3) SOCl_2+ 0.1 mol dm~(-3) LiA1CI_4/DMF sol...
• 1989, 5 (02): 243-245 DOI: 10.3866/PKU.WHXB19890224

• 2029Abstract/Metrics
• 2069 PDF(1105KB)

• RESEARCH ON BELOUSV-ZHABOTINSKII REACTION WITH GALLIC ACID AS SUBSTRATES
• Zhang Tianxi; Zhang Dingheng; Liu Zhiding*
• In perfect mixture of CSTR, oscillation behavior of B-Z reaction system with gallic acid as organic substrates have been...
• 1989, 5 (02): 246-249 DOI: 10.3866/PKU.WHXB19890225

• 1822Abstract/Metrics
• 2144 PDF(1480KB)

• THE EFFECTS OF ENVIRONMENTS ON THE FLUORESCENCE SPECTRUM OF HYPOCRELLIN A
• Diwu Zhenjun; Jiang Lijin*; Zhang Manhua
• In this paper, the effects of the concentration of Hypocrellin A, solvents, acid, bases, dispersing agents and temperatu...
• 1989, 5 (02): 250-253 DOI: 10.3866/PKU.WHXB19890226

• 1869Abstract/Metrics
• 1923 PDF(1535KB)