Catalyst loading / µg(Pt) MSA @ 0.85 V / A mg-1(Pt) d MSA @ 0.85 V / A mg-1(Pt) MSA @ 0.65 V / A mg-1(Pt) d MSA @ 0.65 V / A mg-1(Pt) 10 0.252 0.041 14.289 0.225 20 0.283 0.002 12.476 0.005 35 0.276 0.004 10.171 0.245 75 0.236 0.001 8.792 0.220 100 0.247 0.001 9.658 0.059 200 0.261 0.003 6.220 0.079