V.M. Orera, J.I. Peña, A. Larrea, R.I. Merino, M.L. Sanjuán, M.A. Laguna-Bercero, A. Orera

orera@unizar.es

SOFC ACTIVITIES at ICMA

Main Research Lines:

1.- Solid Oxide Fuel Cells, High Temperature Electrolysers and Advanced

Batteries

2.- Directionally Solidified Eutectic electrodes

On-going collaborations:

• Saint Gobain CREE

•Imperial College of London (J. Kilner, J. Skinner)

• EPF Lausanne (J. Van Harle)

• U. Birmingham (P. Slater)

•Centro Tecnológico Ikerlan (Mondragón S. Coop)

• U. Barcelona (M. Segarra, J.M.Guilemany)

• ICV-CSIC (R. Moreno)

• UC3M (A. Várez), ICMM (J. Sanz), CEU (F. García)

Thin electrolytic

membranes by laser

machining

Anode Conductivity Comparision: ABM-13 vs Co-YSZ

sintered at 1380C and 1500C

(test atm - 100%hydrogen)

0.00

400.00

800.00

1200.00

1600.00

2000.00

2400.00

600 700 800 900 1000

Temp (C)

Co

nd

ucti

vit

y (

S/c

m)

Co-YSZ 1500C

Co-YSZ 1380C

ABM-13 1380C

Lamellar electrodes-Saint Gobain

Fuel Cells, electrolysers and batteries

T (ºC) ASR NM

(Ω·cm2)

ASR LM

(Ω·cm2)

P @ 0.7 V NM

(mW·cm-2)

P @ 0.7 V LM

(mW·cm-2)

750 1.45 1.07 136 210

800 1.06 0.90 235 277

850 0.62 0.51 418 431 0 200 400 600

200

300

400

500

600

700

800

900

1000

1100

0

50

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

Po

we

r(m

W/c

m2)

Vo

lta

ge

(mV

)

Intensity(mA/cm2)

650ºC, 5 % H2

700ºC, 5 % H2

750ºC, 5 % H2

800ºC, 5 % H2

850ºC, 5 % H2

900ºC, 5 % H2

Microtubular SOFC and SOEC

3 patents with concerted royalties +

know-how technology transfer already

paid

Metal supported tubular SOFC

Projects with big industrial consortia

(3 PROFIT, 1 CENIT, 1 PSE)

Budget ICMA: 570.000 €

Global budget: 32.000.000 €)

Materials for Catalysis Electrolitos para

Baterías de litiio

100 300 500 700 900

Raman shift (cm-1

)

Ram

an Inte

nsity (

arb

. units)

An

nealin

g T

em

pe

ratu

re

Gd2Ti

2O

7

0

50

100

150

200

250

0 400 800 1200

annealing T (ºC)

Dom

ain

siz

e (

nm

)

F-like

P-like

Zr1-xCexO2 : Metastable phase

segregation by Ce reduction

Pyroclhores: thermal

evolution of the domain

structure

New SOFC Electrolytes

Apatites: study of the

interstitial oxygen and of its

influence in conductivity

Li batteries Electrolytes

Phase stability of Zr, La and Li

garnets

Tetragonal

↓σ

Cubic

σH

?

Tetragonal

↓σ

Cubic

↑σ

6mm

Metal nanoparticles in textured

supports

t' t"

c t

La2O3 derivates: hydratation,

carbonatation, surface effects

100 300 500 1040 1120

LaOOH

La(OH)3

La2O

2CO

3

Ra

ma

n I

nte

nsity

Raman shfit (cm-1

)

Electochemical

SOFC/SOEC studies

Remarkable results

For instance:

9 in J. Eur. Ceram. Soc (1/25 Ceramic Materials)

9 in J. Am. Ceram. Soc (2/25 Ceramic Materials)

2 in J. Electrochem. Soc. (1/18 Material Science, Coatings & films, 13/27

Electrochemistry)

3 in J. Power Sources. 1 review (2/27 Electrochemistry, 10/81 Energy & fuels)

3 in Int. J. Hydrogen Energy (5/27 Electrochemistry, 12/81 Energy & fuels)

2 in Fuel Cells (10/27 Electrochemistry, 20/81 Energy & fuels)

1 in Dalton Transactions (6/43, Chemistry, Inorganic & Nuclear)

3 in Optics Express (5/77 Optics)

1 in Optical Materials (18/77 Optics)

1 in Applied Surface Science (2/18 Material Science, Coatings & films)

39 SCI papers 2010-2011

Funds ~ 5.1 M€ in the last 5 years (royalties pending)

17 licensed patents in the last 5 years (BSH & Saint Gobain)