课程名称︰触媒化学
课程性质︰选修
课程教师︰简淑华
开课学院：理学院
开课系所︰化学系
考试日期（年月日）︰102/01/07
考试时限（分钟）：120
是否需发放奖励金：是
（如未明确表示，则不予发放）
试题 :
1. Briefly answer the following questions:
(1) What are the general steps in a heterogeneous catalytic reaction?
(2) Will a catalyst change the chemical equilibrium of a given reaction system?
(3) How can you judge if a catalytic reaction is in diffusion limitation?
(4) State the features of zeolite as a catalyst.
(5) What is isoelectric point? Explain why SiO2 tends to perform cation
adsorption, while Al2O3 and TiO2 are able to carry out either cation or
anion adsorption.
(6) Explain why colloidal hydrous oxides such as Al2O3 are usually acidic in
nature.
(7) Define the dispersion of an active catalyst and give a method to determine
it.
(8) Briefly describe how to prepare Raney nickel catalyst.
2. Briefly explain or distinguish the following terms:
(1) % conversion and TOF (turnover frquency).
(2) demanding reaction and facile reaction
(3) atoms in p(2x2) and c(2x2) structures
(4) the depletive chemisorption and cumulative adsorption in the Boundary-Layer
Theory
(5) Huttig temperature and Tammam temperature
(6) n-type and p-type semiconductors
(7) core electron, valence electron and Auger electron
(8) Bragg equation and Scherrer equation
3. Concerning the adsorption of gas molecules on solid catalyst surfaces,
(1) What are the features of the Langmuir adsorption isotherm?
(2) Draw the type II adsorption isotherm by plotting "volume adsorbed" versus
"P/P0", and indicate the "point B".
(3) What is BET surface area? Briefly describe the general experimental
procedure for measuring the BET surface are of a solid catalyst.
4.
(1) Describe the difference between the Rideal-Eley mechanism and Langmuir-
Hinshelwood mechanism.
(2) For a catalytic reaction, A+B→X, assuming no inhibition of the reaction
rate by the following mechanisms?
(a) Langmuir-Hinshelwood mechanism, with A and B adsorbed on different sites
(b) Langmuir-Hinshelwood mechanism, with A and B competed on the same sites
(c) Rideal-Eley mechanism
5.
(1) ESCA is also known as XPS spectroscopy, write the full name for ESCA and
XPS. Give the theoretical basis of the technique, and explain why the
electrons of 4f orbitals exhibit doublet peaks, also give the intensity
ratio of the doublet peaks.
(2) Compare the binding energies of the Ti 2p electrons in the XPS spectra of
TiO2 and Ti metal.
(3) Cu2+ and Cu0 are easily identified by their XPS spectra, specfied the key
feature.
(4) AES and UPS are also powerful electron spectroscopic techniques. Give the
full names and briefly describe the features of these two techniques.
(5) Compare the charateristics among XPS, AES and UPS as applications to the
catalytic research?
6. Give the complete name of each of the following spectroscopy or technique,
and state their most significant application to the catalytic research?
(1) DRIFT (2) SIMS (3) MAS-NMR (4) EPR (5) EXAFS
7. For each of the following quantities give the values or the order of the
magnitude by citing the common units:
(1) particles with 80/100 mesh
(2) the pore size of microporous and mesoporous materials
(3) the cross-sectional area of a N2 molecules
(4) temperature of a liquid nitorgen bath
(5) IR region (in cm-1) of linearly and bridged adsorbed CO on noble metal
surface
(6) energy of X-rays: Cu Kα in Åand Al Kα line in ev
(7) pressure of UHV system
(8) the pore size of a y-type (faujasite) zeolite
8. Give the proper catalyst(s) for the following catalytic reactions or process
(1) hydrogenation of benzene to cyclohexane
(2) ammonia synthesis from N2 and H2
(3) hydrodesulfurization (HDS)
(4) Epoxidation of ethylene
(5) decomposition of N2O
(6) polymerization of ethylene
(7) dehydrogenation of formic acid
(8) methanol to gasoline
Possible Catalysts or the catalyst prime constituent for your reference:
(a) Pt (b) the iron catalysts (Fe/K) (c) Ag/Al2O3
(d) Co9S8-MoS2/Al2O3 (e) NiO (f) V2O5/TiO2
(g) Ziegler-Natta catalyst (h) TiO2 (i)H-ZSM-5
9. 在同学的报告中，写下一个你印象最深刻的报告，说明其大要，并评论之。