NDLI: Effect of oxidation states of Mn in Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ on chemical-looping combustion reactions

Content Provider	Springer Nature Link
Author	Kwak, Byeong Sub Park, Kuk Baek, Jeom In Ryu, Ho Jung Kang, Misook
Copyright Year	2017
Abstract	We investigated the effect of the oxidation state of Mn in CaMnO$_{3}$ perovskite particles to improve their oxygen transfer performance for chemical-looping combustion (CLC). Li was introduced in the Ca site of CaMnO$_{3}$ to increase the Mn oxidation state. Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ particles were synthesized by the solid-state method, and the amount of Li added ranged from 0 to 0.015 mol. The structure of the synthesized Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ particles was examined using XRD, and all particles were confirmed to have a CaMnO$_{3}$ perovskite structure. The shape and chemical properties of the prepared particles were characterized by using SEM and CH$_{4}$-TPD. The binding energy and oxidation state of the different elements in the Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ particles were measured by XPS. When Li was added, the oxidation state of Mn in Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ was higher than that of Mn in CaMnO$_{3}$. The oxygen transfer performance of the particles was determined by an isothermal H$_{2}$-N$_{2}$/air and CH$_{4}$-CO$_{2}$/air redox cycle at 850 °C, repeated ten times, using TGA. All particles showed an oxygen transfer capacity of about 8.0 to 9.0 wt%. Among them, Ca$_{0.99}$Li$_{0.01}$MnO$_{3}$ particles had the best performance and the oxygen transfer capacity under H$_{2}$-N$_{2}$/air and CH$_{4}$-CO$_{2}$/air atmosphere was 8.47 and 8.75 wt%, respectively.
Starting Page	1936
Ending Page	1943
Page Count	8
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	34
Issue Number	7
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2017-05-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemical Looping Combustion Oxygen Carrier Perovskite CaMnO$_{3}$ Li Promoter Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Perovskite-type LaFe$_{1− x }$Mn$_{ x }$O$_{3}$ (x=0, 0.3, 0.5, 0.7, 1.0) oxygen carriers for chemical-looping steam methane reforming: Oxidation activity and resistance to carbon formation

Electrical conductivity and carrier mobility in Ca$_{1–x }$Pr$_{ x }$MnO$_{3–δ}$ manganites

Effect of temperature on reduction reactivity of oxygen carrier particles in a fixed bed chemical-looping combustor

Chemical-looping combustion of syngas by means of spray-dried NiO oxygen carrier

Preparation, electrochemical properties, and cycle mechanism of Li$_{1−x }$Fe$_{0.8}$Ni$_{0.2}$O$_{2}$-Li$_{ x }$MnO$_{2}$ (Mn/(Fe+Ni+Mn)=0.8) material

Oxygen nonstoichiometry and defect equilibrium in Ca$_{1–x }$Pr$_{ x }$MnO$_{3–δ}$ manganites

Syngas combustion characteristics of four oxygen carrier particles for chemical-looping combustion in a batch fluidized bed reactor

Seebeck coefficient of Ca$_{1–x }$Pr$_{ x }$MnO$_{3–δ}$ paramagnetic manganites

Reactivity of a CaSO$_{4}$-oxygen carrier in chemical-looping combustion of methane in a fixed bed reactor

Effect of oxidation states of Mn in Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ on chemical-looping combustion reactions

Similar Documents

Perovskite-type LaFe$_{1− x }$Mn$_{ x }$O$_{3}$ (x=0, 0.3, 0.5, 0.7, 1.0) oxygen carriers for chemical-looping steam methane reforming: Oxidation activity and resistance to carbon formation

Electrical conductivity and carrier mobility in Ca$_{1–x }$Pr$_{ x }$MnO$_{3–δ}$ manganites

Effect of temperature on reduction reactivity of oxygen carrier particles in a fixed bed chemical-looping combustor

Chemical-looping combustion of syngas by means of spray-dried NiO oxygen carrier

Preparation, electrochemical properties, and cycle mechanism of Li$_{1−x }$Fe$_{0.8}$Ni$_{0.2}$O$_{2}$-Li$_{ x }$MnO$_{2}$ (Mn/(Fe+Ni+Mn)=0.8) material

Oxygen nonstoichiometry and defect equilibrium in Ca$_{1–x }$Pr$_{ x }$MnO$_{3–δ}$ manganites

Syngas combustion characteristics of four oxygen carrier particles for chemical-looping combustion in a batch fluidized bed reactor

Seebeck coefficient of Ca$_{1–x }$Pr$_{ x }$MnO$_{3–δ}$ paramagnetic manganites

Reactivity of a CaSO$_{4}$-oxygen carrier in chemical-looping combustion of methane in a fixed bed reactor

Effect of oxidation states of Mn in Ca$_{1−x }$Li$_{ x }$MnO$_{3}$ on chemical-looping combustion reactions