This work examines the behaviour of fluorine modified b-PbO2 electrodes in the processes of O2 and O3 evolution in sulphuric acid. The electrochemical kinetic analyses of these processes are based on quasi-steady-state polarisation and impedance data. The good agreement between the two sets of measurements allows some basic conclusions to be drawn. In particular, the O2 evolution process is always inhibited at F-doped PbO2 electrodes, and impedance results suggest possible changes in the mechanism, with electrodesorption of intermediates becoming more important as the
concentration of the doping element increases. The interpretation of the data for the less positive potentials region invokes the specific adsorption of SO4 as a factor influencing the kinetics of O2 evolution. The current efficiency for O3 formation as a function of the amount of NaF added to the PbO2 growth solution reaches a maximum for a concentration of 0.01 mol dm3. A plausible cause for the decrease on the higher concentration side is the discharge
of adsorbed SO4 2 (or HSO4 ) eventually yielding persulphate. This reaction is known to be favoured in the presence of a relatively high amount of fluoride in the electrolyte. An analysis of the results of modified neglect of diatomic differential overlap (MNDO) calculations on Pb cluster models and of X-ray photoelectron spectroscopy (XPS) data suggests that the coverage by weakly adsorbed oxygen species (OH and H2O) is an important parameter that is influenced by F-doping. © 1999 Elsevier Science Ltd. All rights reserved.
谁能翻译这段英文,化学专业方面的,很难
此帖确实如楼主所说“很难”,但请楼主仔细审阅我的翻译,谢谢!This work examines the behaviour of fluorine modified b-PbO2 electrodes in the processes of O2 and O3 evolution in sulphuric acid. 本研究旨在验证b-PbO2电极在O2和O3于硫酸中析出过程中的性状。The electrochemical kinetic analy...
英语翻译 (化学专业词汇较多)
if overuse,it will cause IITD .This article will testify the existence of iodine which is contained in the salt. To realize this purpose ,we
各位朋友帮小弟翻译一下这段英文,是生物化学方面的,不胜感激
作为分化调节器的丝氨酸蛋白酶和许多有机组织有关联。( 越智1985;吉勃和斯特罗尔1987; 康等人1995; 金和李1996)。在孢子形成之前的M. echinospora培养菌的表面敷用特定的蛋白酶抑制剂,结果显示,丝氨酸蛋白酶抑制剂(或凝乳蛋白酶或胰蛋白酶)抑制孢子的生成。这种蛋白酶产生和生长的调和在链霉菌与不...
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1、有道翻译官:软件是网易有道公司出品的翻译应用,支持中英、中日、中韩和中法等多语种离线翻译,在没有网络的情况下也能顺畅使用。同时配备强大的摄像头取词和短信翻译功能,无需手动输入便可快速获取翻译结果。2、网络翻译:具有网页版和手机客户端,适合于所有手机使用。免费提供高质量的中文、英语、日...
请帮我把下面这段话翻译成英文~
The chemical speciality was established in 1978. In the development process of more than 20 years, a group of old professors cultivated diligently, established the solid foundation for the construction and development of this speciality, have accumulated the abundant experience of running a...
...机翻··机翻的文不对题啊·这是环境科学专业英语里的。。
the composition of the atmosphere is predominately determined by biological processes acting in concert with physical and chemical change.大气的组成主要是由生物过程在音乐会表演与物理和化学变化。Though the concentrations of the major atmospheric constituents oxygen and nitrogen remain the same,...
谁能帮我翻译这段文字?
I also like seeing the foreign literature masterpiece . It is my greatest hobby to read. In addition, I still like listenning to the music , Play badminton.I like one's own present life , But I hope to live more excellent . I believe firmly : It is only better to have ...
谁能帮我把这段汉字翻译成英文(150字)
Arranges the putty machinery is in the Waterworks and the Sewage treatment plant, the coordinate sedimentation pond use, it is the important special purpose equipment. Arranges the putty machinery's form differs from along with the craft condition and the pond structure, at present the ...
麻烦请帮我把下面这段话翻译成英文~
the technology development and the technical management basic skill. The chemical education specialized raise adaptation the 21st century educational reform development need, the morality, intelligence and physique full scale development, has the good scientific accomplishment, has the chemistry el...
谁能帮我翻译一下这段英文文献啊
copper matrix.图形一展示了 钻石颗粒可以分散在铜质型片里 Since the diamond particles are easy to be stripped off during mechanical polishing, small pits are left on the surface of samples.由于这些钻石颗粒在化学抛光的过程中很容易分离出来,所以样品的表面会留下小凹痕 When the samples were...