devices. The catalysts currently used in PEM fuel cells are Pt nanoparticles supported on carbon black. Pt as a precious metal is expensive‚ and there have been tremendous efforts made to reduce its usage. One way is to make Pt nanoparticles as small as possible to maximize the catalyst dispersion and thus its utilization. Smaller nano particles provide larger specific surface areas for electro catalytic reactions that only occur on the surface of the catalysts PEM fuel cell catalysts are generally
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methanation over amorphous Ni–Ru–B/ZrO2 catalyst Qi Hai Liu‚ Xin Fa Dong *‚ Wei Ming Lin School of Chemistry and Chemical Engineering‚ South China University of Technology‚ Guangzhou 510640‚ China Received 15 December 2008 Abstract Amorphous Ni–Ru–B/ZrO2 catalyst was prepared by the means of chemical reduction‚ and selective CO methanation as a strategy for CO removal in fuel processing applications was investigated over the amorphous Ni–Ru–B/ZrO2 catalyst. The result showed that‚ at the temperature
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BIODIESEL PRODUCTION PLANT FROM WASTE COOKING OIL USING SOLID CATALYST CaO/SrO/ZnO Bachelor Degree in Chemical Engineering Department of Chemical Engineering ‚ Faculty of Engineering ‚ Kasetsart University Abstract The objective of pre-feasibility study of the biodiesel production from waste cooking oil using solid catalyst (CaO/SrO/ZnO) is to study and design biodiesel process because the advantages of heterogeneous catalyst are reuseable and less amount of wastewater from washing process
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TinyTiny Tim is the main catalyst for Scrooge’s change in A Christmas Carol. To what extent do you agree? In Charles Dickens’ “A Christmas Carol”‚ the character of Scrooge goes through a transformation which results in him being a generous and considerate man instead of a cruel and bitter one. This transformation is not primarily stimulated by the character Tiny Tim; it is instead as a result of encounters with a series of ghosts and other significant people‚ such as Tiny Tim. The Ghost of Christmas
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TO WHAT EXTENT WAS WAR A CATALYST FOR THE DEVELOPMENT OF CIVIL RIGHTS IN THE UNITED STATES IN THE PERIOD 1877 TO 1981? At the beginning of the 1870s Blacks had caught a glimpse at the end of the tunnel for the development of Civil Rights. With the Emancipation Proclamation in 1862 followed by the 13th and 14th Amendment freed slaves could now travel freely‚ own property and become educated‚ some of the most fundamental of civil rights. However after the release of three and a half million slaves
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EFFECTIVE MANAGEMENT OF REWARD SYSTEM AS CATALYST FOR ACHIEVING POSITIVE PERFORMANCE ATTITUDES AT THE PRIMARY SCHOOL LEVEL (A CASE STUDY OF KOGI STATE‚ NIGERIA) 1 TABLE OF CONTENT APRROVAL PAGE DEDICATION ABSTRACT TABLE OF CONTENT CHATER ONE 1.0 1.1 INTRODUCTION BACKGROUND OF THE STUDY 1.2 STATEMENT OF THE PROBLEM 1.3 PURPOSE OF OBJECTIVE OF STUDY 1.4 HYPOTHESIS 1.5 SCOPE AND LIMITATIONS OF STUDY 1.6 DEFINITION OF TERMS CHATPTER TWO 2.0 LITERATURE
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using carboxylic acid to an alcohol‚ which is 1.0 ml of ethanoic acid to the ethanol‚ and ethanoic acid to the propan-1-ol‚ also adding H2SO4 as a catalyst for the reaction Abstract: Esters are a group of organic compound‚ famous for their interesting odours and smells. In this investigation student used ethanoic acid and ethanol with sulfuric acid as catalyst to produce ester‚ which was known of its smell. However it was expected to have a pleasant smell‚ but it has a smell like a nail polish in cold
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Research Article Vol: 2; Issue: 1 SYNTHESIS AND ANALYSIS OF BENZOPINACOL FROM BENZOPHENONE BY PHOTOREDUCTION IN GREEN CHEMISTRY. 1 Lata.C.Potey‚ 2* Dr. Satish B. Kosalge‚ 3 Rajeshwari S. Sarode 1 2 Assistant Professor‚ Hi-Tech College of Pharmacy‚ Chandrapur. Principal‚ Hi-Tech College of Pharmacy‚ Chandrapur 3 Assistant Professor‚ Hi-Tech College of Pharmacy‚ Chandrapur. Date Received: 11 TH Jan 2014 Date of Accepted: th 16 Jan 2014 Date Published: 18th
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Organic Chemistry II Laboratory (ABCT357/ABCT3757) Lab Manual 2014-2015 Lee Hang Wai‚ Alston (alston.lee@polyu.edu.hk) Dr. Lee Cheng Hao‚ Samuel (chenghao.lee@polyu.edu.hk) Organic Chemistry II Laboratory (ABCT357‚ ABCT3757) (Group one) Contact: Alston Lee (alston.lee@polyu.edu.hk) Tuesday 8:30-11:30 ‚ Laboratory: Y1315 Lab supporting staffs: YK Au / Kan Chan/Arnold Demonstrators: Dr. Samuel Lee‚ Alston Lee‚ Fu Wai Chung‚ Guo Shuai‚ Yuen On Ying‚ Sep 16 Tue Acetylation of α-D-glucopyranose (Expt
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Organic Chemistry II Laboratory (ABCT357) Although studying fundamental theories of chemistry in the class is important to understand the concept of chemistry‚ carrying out experiments to corroborate the theories is also important. It is very important for students to get used to experiments in order to speed up their experiments. Expt.1. Acetylation of α-D-glucopyranose Add slowly 2.5 g (0.014 mol) of powdered D-glucose in small portions (roughly in 7-10 portions and 5 min for each addition)
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