Processes on Solid Surfaces Physical Chemistry CHM 351Dr Erdal OnurhanSlide 1 “Smooth” Surface of a Solid.

Slides:



Advertisements
Similar presentations
Tutorial for Catalysis tool (1) Select (2) Depress.
Advertisements

Lecture 20. Adsorption Phenomena
CI 10.4 What is a catalyst?. Catalysts Speed up the rate of a chemical reaction Are not chemically changed or used up in the reaction May be specific.
Heterogeneous Catalysis & Solid State Physics Dohyung Kim May 2, 2013 Physics 141A.
Reactions in Aqueous Solutions General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Nonelectrolytes and Electrolytes Nonelectrolyte Electrolytes Strong.
Kinetics CHEM 210 Spring 2014 Dr. Vilchiz. What is Kinetics? One of the three main branches of Physical Chemistry It is responsible for studies in rate.
CATALYSIS AND CATALYTIC REACTION MECHANISM PART 1
Atoms, Molecules, and Ions General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Dalton’s Atomic Theory Based on 4 postulates o Elements are composed of.
Mass Relationships in Chemical Reactions General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Two Isotopes of Carbon C-12 has 6 protons and 6 neutrons with.
ADSORPTION by Pranoy Pratik Raul.
Bonding to surfaces Two classifications distinguished by the magnitude of their enthalpies of adsorption  Physisorption: long-range but weak van der Waals-type.
INTRODUCTION TO CATALYSIS –KINETICS OF CATALYTIC REACTIONS CH
Heterogeneous catalysis
Model Answers for AS Chemistry. Heterogeneous Catalysts Mechanism.
ADSORPTION. Surface Activity of Solutes Solute, c  oo Solutes that decrease surface tension are called “surfactants”  Solute, c.
Solid surfaces Solid A Phase B “bulk” “interfacial” In the applications of chemistry we are frequently concerned with how a solid phase interacts with.
Lecture Thursday 4/3/08 Normal Pentene  Iso-Pentane Langmuir Adsorption Isotherm Catalytic Converters for Automobiles.
Chemical kinetics Lecture IV Jenny Frodelius & Jonas Lauridsen.
Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.
Lecture 24 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.
Chapters Included sections are indicated in the syllabus.
Chapter 13 Chemical Kinetics 2008, Prentice Hall Chemistry: A Molecular Approach, 1 st Ed. Nivaldo Tro Roy Kennedy Massachusetts Bay Community College.
Electrochemistry General Chemistry II CHM 112 Dr Erdal OnurhanSlide 1 A Galvanic Cell.
Intermolecular Forces and Liquids and Solids General Chemistry II CHM 112 Dr Erdal OnurhanSlide 1 Property\StateGasLiquidSolid Intermolecular Interaction.
Energy, Free Energy, and Equilibrium General Chemistry II CHM 112 Dr Erdal OnurhanSlide 1 Spontaneity.
Chemistry. Surface Chemistry - 1 Session Session Objectives  Adsorption versus absorption  Types of adsorption: physisorption and chemisorption  Desorption.
Langmuir Adsorption Isotherm
EEW508 Structure of Surfaces Surface structure Rice terrace.
Surface and Interface Chemistry  Solid/gas Interface (part two) Valentim M. B. Nunes Engineering Unit of IPT 2014.
1 Humic Substances Seminar VII March , Northeastern University Boston, MA, USA Physical and Chemical Kinetics in Humic Dispersions Martina.
Chemical Kinetics The area of chemistry that concerns reaction rates and reaction mechanisms.
Chemistry: The Study of Change General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Some Definitions First CHEMISTRY studies MATTER. MATTER is anything.
Chemical Bonding I – Basic Concepts General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Lewis Dot Symbols of Some Elements.
Gas-Solid Interactions
§8.5 adsorption at gas / solid interface Levine: pp. 397– 402 section 13.5 adsorption of gases on solids.
Surface and Interface Chemistry  Solid/gas Interface
Gases General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Some Common Properties of Gases They all assume the volume and shape of their containers They.
Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Molecular Geometry of.
Thermochemistry General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Some Forms of Energy - Solar Energy, part of radiant energy. Solar energy comes from.
Quantum Theory and the Electronic Structure of Atoms General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Wave Properties A wave is defined as a continuously.
Periodic Relationships Among the Elements General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Periodic Table.
Catalysis October Catalyst A substance that speeds up a reaction without being consumed itself How? By providing a new pathway for the reaction,
Mechanisms Of Surface Reactions
Catalysis.
Unit 9 – Reaction Rates and Equilibrium The area of chemistry that concerns reaction rates (how fast a reaction occurs)
Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.
Electrochemical Cells and Electrode Potentials Physical Chemistry CHM 351Dr Erdal OnurhanSlide 1 Basic Description of a Cell.
Adsorption at solids Solid: Adsorbent Gas/Solute: Adsorbate
Chemistry 1011 Slot 51 Chemistry 1011 TOPIC Rate of Reaction TEXT REFERENCE Masterton and Hurley Chapter 11.
Molecules in Motion Physical Chemistry CHM 351Dr Erdal OnurhanSlide 1 Flux vs. Density of Property We get transport when there is a gradient of the density.
Chemical Kinetics Physical Chemistry CHM 351Dr Erdal OnurhanSlide 1 Generalised Expectations A + B C + D Chemical kinetics is interested in knowing 1.How.
Reaction Dynamics Physical Chemistry CHM 351Dr Erdal OnurhanSlide 1 Reactive Encounters.
Examples other partition functions. Example 1. Show that For a grand canonical ensemble but we don’t know which thermodynamic property is related wi th.
Shavorskiy Andrey Reading group under Dr. Georg Held`s supervision From: Novosibirsk Russia.
S OLID S TATE AND S URFACE C HEMISTRY ( LECTURE 10) Dr. Saeda Rwede Al-Mhyawi Assistant professor in physical chemistry Contact Info:
IC-1/38 Lecture Kinetics IC-2/38 Lecture What is Kinetics ? Analysis of reaction mechanisms on the molecular scale Derivation.
Electrochemistry of modified electrodes
Effects of Air Pressure and Wettability on Drop Impact on Dry Surfaces Taehun Lee, Department of Mechanical Engineering, City University of New York,
Solid State and Surface Chemistry (lecture 2 adsorption)
Lecture 23 Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors.
Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.
Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.
Probing a New Form of Surface Chemistry: Interactions with Point Defects Edmund G. Seebauer, Department of Chemical & Biomolecular Engineering, University.
انواع المخاليط (التدريس الابداعي )
Chemistry.
أنماط الإدارة المدرسية وتفويض السلطة الدكتور أشرف الصايغ
Chemistry.
The Structure of Dynamics of Wet Electrons at Metal Oxide Surfaces
CI 10.4 What is a catalyst?.
Catalysis Catalyst: A substance that speeds up a reaction without being consumed Enzyme: A large molecule (usually a protein) that catalyzes biological.
Presentation transcript:

Processes on Solid Surfaces Physical Chemistry CHM 351Dr Erdal OnurhanSlide 1 “Smooth” Surface of a Solid

Processes on Solid Surfaces Physical Chemistry CHM 351Dr Erdal OnurhanSlide 2 Surface Defects

Processes on Solid Surfaces Physical Chemistry CHM 351Dr Erdal OnurhanSlide 3 Dynamic Equilibrium between Adsorbate and Substrate

Processes on Solid Surfaces Physical Chemistry CHM 351Dr Erdal OnurhanSlide 4 Langmuir Isotherm – No Dissociation

Processes on Solid Surfaces Physical Chemistry CHM 351Dr Erdal OnurhanSlide 5 Energy Profile – Heterogeneous Catalysis