Istaq Ahmed

Showing 33 publications

2017

Overcurrent Abuse of Primary Prismatic Zinc–Air Battery Cells Studying Air Supply Effects on Performance and Safety Shut-Down

Carl Fredrik Larsson, Antti Rytinki, Istaq Ahmed et al
Batteries. Vol. 3 (1)
Journal article
2016

Crystal structure and proton conductivity of BaSn0.6Sc0.4O3-delta: insights from neutron powder diffraction and solid-state NMR spectroscopy

FRANCIS GACHAO KINYANJUI, Stefan Norberg, Christopher Knee et al
Journal of Materials Chemistry A. Vol. 4 (14), p. 5088-5101
Journal article
2014

Characterisation of structure and conductivity of BaTi0.5Sc 0.5O3 - δ

Seikh Mohammad Habibur Rahman, Istaq Ahmed, R. Haugsrud et al
Solid State Ionics. Vol. 255, p. 140-146
Journal article
2012

Crystal structure, hydration and ionic conductivity of the inherently oxygen-deficient La2Ce2O7

V. Besikiotis, Christopher Knee, Istaq Ahmed et al
Solid State Ionics. Vol. 228, p. 1-7
Journal article
2012

Synthesis and Enhanced Proton Conduction in a 20 mol% Ytterbium Doped Barium Zirconate Ceramic Using Zn as Sintering Aid

Seikh Mohammad Habibur Rahman, Istaq Ahmed, Sten Eriksson
Applied Mechanics and Materials. Vol. 110-116 (Part 1-7), p. 1181-1186
Paper in proceedings
2012

In-situ conductivity and hydration studies of proton conductors using neutron powder diffraction

FRANCIS GACHAO KINYANJUI, Stefan Norberg, Istaq Ahmed et al
Solid State Ionics. Vol. 225, p. 312-316
Journal article
2012

50 mol% indium substituted BaTiO3: Characterization of structure and conductivity

Seikh Mohammad Habibur Rahman, Christopher Knee, Istaq Ahmed et al
International Journal of Hydrogen Energy. Vol. 37 (9), p. 7975-7982
Journal article
2012

Pyrochlore to Fluorite Transition: The Y2(Ti1-xZrx)2O7 (0.0 ≤ x ≤ 1.0) System

Stefan Norberg, S. Hull, Sten Eriksson et al
Chemistry of Materials. Vol. 24 (22), p. 4294-4300
Journal article
2011

High temperature crystal structures and superionic properties of SrCl2, SrBr2, BaCl2 and BaBr2

S. Hull, Stefan Norberg, Istaq Ahmed et al
Journal of Solid State Chemistry. Vol. 184 (11), p. 2925-2935
Journal article
2011

Application of combined neutron diffraction and impedance spectroscopy for in-situ structure and conductivity studies of La2Mo2O9

J. J. Liu, S. Hull, Istaq Ahmed et al
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. Vol. 269 (5), p. 539-543
Journal article
2011

Structural Disorder in Doped Zirconias, Part I: The Zr0.8Sc0.2-xYxO1.9 (0.0 ≤x ≤ 0.2) System

Stefan Norberg, S. Hull, Istaq Ahmed et al
Chemistry of Materials. Vol. 23 (6), p. 1356-1364
Journal article
2010

Using Neutron Spin-Echo To Investigate Proton Dynamics in Proton-Conducting Perovskites

Maths Karlsson, Dennis Engberg, Mårten Björketun et al
Chemistry of Materials. Vol. 22 (3), p. 740-742
Journal article
2010

Dopant Concentration and Short-Range Structure Dependence of Diffusional Proton Dynamics in Hydrated BaInxZr1-xO3-x/2 (x=0.10 and 0.50)

M. Karlsson, P. Fouquet, Istaq Ahmed et al
Journal of Physical Chemistry C. Vol. 114 (7), p. 3292-3296
Journal article
2010

A combined conductivity and DFT study of protons in PbZrO3 and alkaline earth zirconate perovskites

T. S. Bjorheim, A. Kuwabara, Istaq Ahmed et al
Solid State Ionics. Vol. 181 (3-4), p. 130-137
Journal article
2010

Short-range structure of proton-conducting BaM0.10Zr0.90O2.95 (M = Y, In, Sc and Ga) investigated with vibrational spectroscopy

M. Karlsson, Istaq Ahmed, Aleksandar Matic et al
Solid State Ionics. Vol. 181 (3-4 (Sp. Iss.)), p. 126-129
Journal article
2010

Improved Proton Conductivity in Spark-Plasma Sintered Dense Ceramic BaZr0.5In0.5O3-delta

Istaq Ahmed, FRANCIS GACHAO KINYANJUI, Patrick Steegstra et al
Electrochemical and Solid-State Letters. Vol. 13 (11), p. B130-B134
Journal article
2010

Temperature-Dependent Infrared Spectroscopy of Proton-Conducting Hydrated Perovskite BaInxZr1-xO3-x/2 (x=0.10-0.75)

Maths Karlsson, Aleksandar Matic, Ezio Zanghellini et al
Journal of Physical Chemistry C. Vol. 114 (13), p. 6177-6181
Journal article
2009

Oxygen vacancy ordering within anion-deficient Ceria

Stephen Hull, Stefan Norberg, Istaq Ahmed et al
Journal of Solid State Chemistry. Vol. 182 (10), p. 2815-2821
Journal article
2009

Local structure and ionic conductivity in the Zr2Y2O7-Y3NbO7 system

Stefan Norberg, Istaq Ahmed, Stephen Hull et al
Journal of Physics Condensed Matter. Vol. 21 (21), p. 215401-
Journal article
2009

Quasielastic neutron scattering of hydrated BaZr0.90A0.10O2.95 (A = Y and Sc)

Maths Karlsson, Aleksandar Matic, Dennis Engberg et al
Solid State Ionics. Vol. 180 (1), p. 22-28
Journal article
2009

Short-range structure of proton-conducting perovskite BaInxZr1-xO3-x/2 (x=0-0

Maths Karlsson, Aleksandar Matic, Christopher Knee et al
Chemistry of Materials. Vol. 20 (10), p. 3480-3486
Journal article
2008

Crystal structure and proton conductivity of BaZr0.9Sc0

Istaq Ahmed, Maths Karlsson, Sten Eriksson et al
Journal of the American Ceramic Society. Vol. 91 (9), p. 3039-3044
Journal article
2008

Influence of microstructure on electrical properties in BaZr0.5In0.5O3-delta proton conductor

Istaq Ahmed, Sten Eriksson, Elisabet Ahlberg et al
Solid State Ionics. Vol. 179 (21-26), p. 1155-1160
Journal article
2008

Proton conduction in Perovskite Oxide BaZr0.5Yb0.5O3-δ Prepared by Wet Chemical Route

Istaq Ahmed, Christopher Knee, Sten Eriksson et al
Journal of the Electrochemical Society. Vol. 155 (11), p. 97-102
Journal article
2008

Influence of Microstructure on Electrical Properties in BaZr0.50In0.50O3-δ Proton Conductor

Istaq Ahmed, Sten Eriksson, E. Ahlberg et al
Solid State Ionics. Vol. 179, p. 3480-3485
Journal article
2008

Location of deuteron sites in the proton conducting perovskite BaZr0.50In0.50O3-y

Istaq Ahmed, Christopher Knee, Maths Karlsson et al
Journal of Alloys and Compounds. Vol. 450 (1-2), p. 103-110
Journal article
2008

O-H wag vibrations in hydrated BaInxZr1-xO3-x/2

Maths Karlsson, Aleksandar Matic, Stuart Parker et al
Physical Review B. Vol. 77, p. 104302-
Journal article
2007

Structural study and proton conductivity in Yb-doped BaZrO3

Istaq Ahmed, Sten Eriksson, Elisabet Ahlberg et al
Solid State Ionics. Vol. 178 ((7-10)), p. 515-520
Journal article
2006

Structural Study and Proton Conductivity of BaZr0.90Ga0.10O2.95

Istaq Ahmed, E. Ahlberg, Sten Eriksson et al
Advances of Solid Oxide Fuel cells II, Ceramic Engineering and Science Proceedings. Vol. 27 (4), p. 105-117
Paper in proceedings
2006

Proton conductivity and low temperature structure of In-doped BaZrO3

Istaq Ahmed, Sten Eriksson, E. Ahlberg et al
Solid State Ionics. Vol. 177, p. 2357-
Journal article
2005

Vibrational Properties of Protons in Hydrated BaInxZr1-xO3-x/2

Maths Karlsson, Mårten Björketun, Per G. Sundell et al
Physical Review B - Condensed Matter and Materials Physics. Vol. 72, p. 1-7
Journal article

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