8-10 july 2020 ciudad real, spain hydrogen-chlorine pem
TRANSCRIPT
HYDROGEN-CHLORINE PEM REVERSIBLE FUEL CELL ENERGY STORAGE SYSTEM
INTRODUCTION
Looking for…
Providing new ways to generate
green energy
Enhancingeconomicefficiency
ReducingCO2
emissions
Reducingwaste
Improvingstorage
efficiency
…new energy storage devices!
Proposal
- To develop a reversible Hydrogen-Chlorine PEM Fuel Cell
Use of hydrogen to produce electric power has seemed as a very promising option for a long time [1], although storage procedure is still a
big problem [2].
METHODOLOGY RESULTS
Electrolysis ModeFuel Cell Mode
Financial support from the Spanish Ministry of Economy, Industry and Competitiveness and European Union through project CTQ2017-91190-EXP (AEI/FEDER, UE) is gratefully acknowledged
ACKNOWLEDGEMENTS
CONCLUSIONS REFERENCES
Same electrochemical cell
Same electrodes
NaCl H2O Cl2 H2
Cl2 H2 HCl
Assembling the cell
Reversible chloralkaline cell operating successfully in both modes.
ELECTROLYSIS FUEL CELL
[1] C.A. Grimes, O.K. Varghese, S. Ranjan. Light, water, hydrogen: The solar generation of hydrogen bywater photoelectrolysis, (2008).
[2] M. S. Thomassen, B. Børresen, G. Hagen, R. Tunold. H2/Cl2 fuel cell for cogeneration of electricity andHCl, Journal of Applied Electrochemistry, 33 (2003), 9-13.
[3] L.M. Da Silva, G. M. De Oliveira, M. De Salles, K.I.B. Eguiluz, G.R. Salazar-Banda. Influence of heatingrate on the physical and electrochemical properties of mixed metal oxides anodes synthesized by thermaldecomposition method applying an ionic liquid, Journal of Electroanalytical Chemistry, 813 (2018), 127-133.
M. Carvela, J. Lobato, C.M. Fernández, M.A. Rodrigo
Department of Chemical Engineering. University of Castilla-La Mancha. Enrique Costa building, Ciudad Real
XIV Young Science Symposium8-10 July 2020 Ciudad Real, Spain
-
+
Chlor-alkali electrolysis
NaOH
Air+CO2
Na2CO3
H2O
Crystallization
Cl2
PEM Fuel Cell
-
+
H2
Air
AIMS
- To produce and store energy
-
+
MMO electrodes synthesis [3]
2 cm
1 c
m
Experimental set-up
0
200
400
600
800
1000
0 20 40 60 80 100 120
Co
unts
/ a.
u.
2ϴ / deg.
Before
After
RuO2
Pt
TiO2
LOADING. . .
0
20
40
60
80
100
1 3 4 9
Hy
dro
gen
pro
du
ctio
n(%
)
Ru / Pt
Current efficiency based on hydrogenproduction during the electrolysis tests
Ru20Ti60Pt20Ru30Ti60Pt10Ru40Ti50Pt10Ru45Ti50Pt5
7.4 V 100 mA cm-2
0
0.1
0.2
0.3
0.4
0.5
0.6
0 2 4 6 8 10Eff
icie
ncy
/ W
hm
ol-1
H2
Ru / Pt
Ru20Ti60Pt20Ru30Ti60Pt10Ru40Ti50Pt10
Ru45Ti50Pt5
Influence of the cathodic Ru/Pt ratio onthe efficiency
Membrane
Electrode
Assembly
MembraneSilicon
gasketSilicon
gasket
Cathodic
compartment
Cathode
Anodic
compartment
Anode
Cathodic
compartment
Anodic
compartment
Silicon
gasketSilicon
gasket
Green energy has been produced by applying electrical energy to the cell from solar panels.
0
100
200
300
400
500
600
700
800
0 2 4 6 8 10 12
j /
mA
cm
-2
Time / h
0
4
8
12
16
20
0 2 4 6 8 10 12
r H2 /
mM
ol
h-1
Time / h
5%
25%65%
85%Current density behavior of the cell during theelectrolysis test using solar panel. Production ofhydrogen.