标准电极电势表标准电极电势可以用来计算化学电池或原电池的电化学势或电极电势。

本表中所给出的电极电势以标准氢电极为参比电极，溶液中离子有效浓度为1mol/L，气体分压为100kPa，温度为298K，所有离子的数据都在水溶液中测得。

[1][2][3][4][5][6][7][8][9]单击每栏上方的符号可将数据按元素符号或标准电极电势值排序。

注：(s) –固体；(l) –液体；(g) –气体；(aq) –水溶液；(Hg) –汞齐。

半反应E°(V)[注 1]来源Ba++ e−Ba(s) −4.38 [10][1][3]Sr++ e−Sr(s) −4.10 [11][1][3] Ca++ e−Ca(s) −3.8 [11][1][3]Pr3++ e−Pr2+−3.1 [11] N2(g) + H++ e−HN3(aq) −3.09 [6]Li++ e−Li(s) −3.0401 [5]N2(g) + 4 H2O + 2 e−2 NH2OH(aq) + 2 OH−−3.04 [6]Cs++ e−Cs(s) −3.026 [5]Ca(OH)2(s) + 2 e−Ca(s) + 2 OH−−3.02 [11]Rb++ e−Rb(s) −2.98 [4]K++ e−K(s) −2.931 [5]半反应E°(V)[注 1]来源Mg++ e−Mg(s) −2.93 [10] Ba2++ 2 e−Ba(s) −2.912 [5]La(OH)3(s) + 3 e−La(s) + 3OH−−2.90 [5]Fr++ e−Fr(s) −2.9 [11] Sr2++ 2 e−Sr(s) −2.899 [5]Sr(OH)2(s) + 2 e−Sr(s) + 2 OH−−2.88 [11] Ca2++ 2 e−Ca(s) −2.868 [5] Eu2++ 2 e−Eu(s) −2.812 [5] Ra2++ 2 e−Ra(s) −2.8 [5] Yb2++ 2 e−Yb(s) −2.76 [11][1] Na++ e−Na(s) −2.71 [5][9] Sm2++ 2 e−Sm(s) −2.68 [11][1] No2++ 2 e−No(s) −2.50 [11] HfO(OH)2(s) + H2O + 4 e−Hf(s) + 4 OH−−2.50 [11]半反应E°(V)[注 1]来源Th(OH)4(s) + 4 e−Th(s) + 4 OH−−2.48 [11] Md2++ 2 e−Md(s) −2.40 [11] La3++ 3 e−La(s) −2.379 [5]Y3++ 3 e−Y(s) −2.372 [5] Mg2++ 2 e−Mg(s) −2.372 [5] ZrO(OH)2(s) + H2O + 4 e−Zr(s) + 4OH−−2.36 [5]Pr3++ 3 e−Pr(s) −2.353 [11] Ce3++ 3 e−Ce(s) −2.336 [11] Er3++ 3 e−Er(s) −2.331 [11] Ho3++ 3 e−Ho(s) −2.33 [11]Al(OH)4−+ 3 e−Al(s) + 4 OH−−2.33Al(OH)3(s) + 3 e−Al(s) + 3OH−−2.31Tb3++ 3 e−Tb(s) −2.28半反应E°(V)[注 1]来源H2(g) + 2 e−2 H−−2.25Ac3++ 3 e−Ac(s) −2.20Be++ e−Be(s) −2.12 [10] Cf2++ 2 e−Cf(s) −2.12 [11] Am3++ 3 e−Am(s) −2.048 [11] Cf3++ 3 e−Cf(s) −1.94 [11] Am2++ 2 e−Am(s) −1.9 [11] Be2++ 2 e−Be(s) −1.85Rf4++ 4 e−Rf(s) −1.67 [12]U3++ 3 e−U(s) −1.66 [7]Al3++ 3 e−Al(s) −1.66 [9]Ti2++ 2 e−Ti(s) −1.63 [9]Bk2++ 2 e−Bk(s) −1.6 [11]半反应E°(V)[注 1]来源ZrO2(s) + 4 H++ 4 e−Zr(s) + 2 H2O −1.553 [5]Hf4++ 4 e−Hf(s) −1.55 [11]Zr4++ 4 e−Zr(s) −1.45 [5]Ti3++ 3 e−Ti(s) −1.37 [13] TiO(s) + 2 H++ 2 e−Ti(s) + H2O −1.31Ti2O3(s) + 2 H++ 2 e−2 TiO(s) + H2O −1.23Zn(OH)42−+ 2 e−Zn(s) + 4 OH−−1.199 [14] Mn2++ 2 e−Mn(s) −1.185 [14] Fe(CN)64−+ 6 H++ 2 e−Fe(s) + 4HCN(aq) −1.16 [15]V2++ 2 e−V(s) −1.175 [2]Te(s) + 2 e−Te2−−1.143 [2] Nb3++ 3 e−Nb(s) −1.099Sn(s) + 4 H++ 4 e−SnH4(g) −1.07半反应E°(V)[注 1]来源In(OH)3(s) + 3 e−In(s) + 3 OH−−0.99 [11] SiO2(s) + 4 H++ 4 e−Si(s) + 2 H2O −0.91B(OH)3(aq) + 3 H++ 3 e−B(s) + 3 H2O −0.89Fe(OH)2(s) + 2 e−Fe(s) + 2 OH−−0.89 [15] Fe2O3(s) + 3 H2O + 2 e−2Fe(OH)2(s) + 2 OH−−0.86 [15] TiO2++ 2 H++ 4 e−Ti(s) + H2O −0.862 H2O+ 2 e−H2(g) + 2 OH−−0.8277 [5]Bi(s) + 3 H++ 3 e−BiH3−0.8 [14] Zn2++ 2 e−Zn(Hg) −0.7628 [5]Zn2++ 2 e−Zn(s) −0.7618 [5]Ta2O5(s) + 10 H++ 10 e−2 Ta(s) + 5 H2O −0.75Cr3++ 3 e−Cr(s) −0.74[Au(CN)2]−+ e−Au(s) + 2 CN−−0.60半反应E°(V)[注 1]来源Ta3++ 3 e−Ta(s) −0.6PbO(s) + H2O + 2 e−Pb(s) + 2 OH−−0.582 TiO2(s) + 2 H++ 2 e−Ti2O3(s) + H2O −0.56Ga3++ 3 e−Ga(s) −0.53U4++ e−U3+−0.52 [7]H3PO2(aq) + H++ e−P(白磷[16]) + 2 H2O −0.508 [5]H3PO3(aq) + 2 H++ 2 e−H3PO2(aq) + H2O −0.499 [5]H3PO3(aq) + 3 H++ 3 e−P(红磷)[16]+ 3H2O −0.454 [5]Fe2++ 2 e−Fe(s) −0.44 [9]2 CO2(g) + 2 H++ 2 e−HOOCCOOH(aq) −0.43Cr3++ e−Cr2+−0.42Cd2++ 2 e−Cd(s) −0.40 [9] SeO32−+ 4e−+ 3H2O ⇌Se + 6OH−−0.37 [17]半反应E°(V)[注 1]来源GeO2(s) + 2 H++ 2 e−GeO(s) + H2O −0.37Cu2O(s) + H2O + 2 e−2 Cu(s) + 2 OH−−0.360 [5] PbSO4(s) + 2 e−Pb(s) + SO42−−0.3588 [5] PbSO4(s) + 2 e−Pb(Hg) + SO42−−0.3505 [5] Eu3++ e−Eu2+−0.35 [7]In3++ 3 e−In(s) −0.34 [2]Tl++ e−Tl(s) −0.34 [2] Ge(s) + 4 H++ 4 e−GeH4(g) −0.29Co2++ 2 e−Co(s) −0.28 [5]H3PO4(aq) + 2 H++ 2 e−H3PO3(aq) + H2O −0.276 [5]V3++ e−V2+−0.26 [9]Ni2++ 2 e−Ni(s) −0.25As(s) + 3 H++ 3 e−AsH3(g) −0.23 [2]半反应E°(V)[注 1]来源AgI(s) + e−Ag(s) + I−−0.15224 [14] MoO2(s) + 4 H++ 4 e−Mo(s) + 2 H2O −0.15Si(s) + 4 H++ 4 e−SiH4(g) −0.14Sn2++ 2 e−Sn(s) −0.13O2(g) + H++ e−HO2•(aq) −0.13Pb2++ 2 e−Pb(s) −0.13 [9] WO2(s) + 4 H++ 4 e−W(s) + 2 H2O −0.12P(红磷) + 3 H++ 3 e−PH3(g) −0.111 [5] CO2(g) + 2 H++ 2 e−HCOOH(aq) −0.11Se(s) + 2 H++ 2 e−H2Se(g) −0.11CO2(g) + 2 H++ 2 e−CO(g) + H2O −0.11SnO(s) + 2 H++ 2 e−Sn(s) + H2O −0.10半反应E°(V)[注 1]来源SnO2(s) + 2 H++ 2 e−SnO(s) + H2O −0.09WO3(aq) + 6 H++ 6 e−W(s) + 3 H2O −0.09 [2]P(白磷) + 3 H++ 3 e−PH3(g) −0.063 [5]Fe3++ 3 e−Fe(s) −0.04 [15] HCOOH(aq) + 2 H++ 2 e−HCHO(aq) + H2O −0.032 H++ 2 e−H2(g)0.00 ≡0 AgBr(s) + e−Ag(s) + Br−+0.07133 [14]S4O62−+ 2 e−2 S2O32−+0.08Fe3O4(s) + 8 H++ 8 e−3 Fe(s) + 4 H2O +0.085 [8]N2(g) + 2 H2O + 6H++ 6 e−2 NH4OH(aq) +0.092HgO(s) + H2O + 2 e−Hg(l) + 2 OH−+0.0977Cu(NH3)42++ e−Cu(NH3)2++ 2 NH3+0.10 [2]Ru(NH3)63++ e−Ru(NH3)62++0.10 [7]半反应E°(V)[注 1]来源N2H4(aq) + 4 H2O + 2 e−2 NH4++ 4 OH−+0.11 [6]H2MoO4(aq) + 6 H++ 6 e−Mo(s) + 4 H2O +0.11Ge4++ 4 e−Ge(s) +0.12C(s) + 4 H++ 4 e−CH4(g) +0.13 [2] HCHO(aq) + 2 H++ 2 e−CH3OH(aq) +0.13S(s) + 2 H++ 2 e−H2S(g) +0.14Sn4++ 2 e−Sn2++0.15Cu2++ e−Cu++0.159 [2] HSO4−+ 3 H++ 2 e−SO2(aq) + 2 H2O +0.16UO22++ e−UO2++0.163 [7] SO42−+ 4 H++ 2 e−SO2(aq) + 2 H2O +0.17TiO2++ 2 H++ e−Ti3++ H2O +0.19半反应E°(V)[注 1]来源Bi3++ 2e−Bi++0.2SbO++ 2 H++ 3 e−Sb(s) + H2O +0.20AgCl(s) + e−Ag(s) + Cl−+0.22233 [14]H3AsO3(aq) + 3 H++ 3 e−As(s) + 3 H2O +0.24GeO(s) + 2 H++ 2 e−Ge(s) + H2O +0.26UO2++ 4 H++ e−U4++ 2 H2O +0.273 [7]At2+ e−2 At-+0.3 [11] Re3++ 3 e−Re(s) +0.300Bi3++ 3 e−Bi(s) +0.32VO2++ 2 H++ e−V3++ H2O +0.34Cu2++ 2 e−Cu(s) +0.340 [2] [Fe(CN)6]3−+ e−[Fe(CN)6]4−+0.36半反应E°(V)[注 1]来源Tc2++ 2 e−Tc(s) +0.40 [11]O2(g) + 2 H2O + 4 e−4 OH−(aq) +0.40 [9]H2MoO4+ 6 H++ 3 e−Mo3++ 2 H2O +0.43Ru2++ 2 e−Ru(s) +0.455 [11]Bi++ e−Bi(s) +0.50CH3OH(aq) + 2 H++ 2 e−CH4(g) + H2O +0.50SO2(aq) + 4 H++ 4 e−S(s) + 2 H2O +0.50Cu++ e−Cu(s) +0.520 [2] CO(g) + 2 H++ 2 e−C(s) + H2O +0.52I3−+ 2 e−3 I−+0.53 [9]I2(s) + 2 e−2 I−+0.54 [9] [AuI4]−+ 3 e−Au(s) + 4 I−+0.56半反应E°(V)[注 1]来源H3AsO4(aq) + 2 H++ 2 e−H3AsO3(aq) + H2O +0.56[AuI2]−+ e−Au(s) + 2 I−+0.58MnO4−+ 2 H2O + 3 e−MnO2(s) + 4 OH−+0.59Rh++ e−Rh(s) +0.600 [11]S2O32 −+ 6 H++ 4 e−2 S(s) + 3 H2O +0.60Fc++ e−Fc(s) +0.641 [18]+0.643 [11]+ e−Ag + −H2MoO4(aq) + 2 H++ 2 e−MoO2(s) + 2 H2O +0.65+0.6992 [14] + 2 H++ 2 e−O2(g) + 2 H++ 2 e−H2O2(aq) +0.70Tl3++ 3 e−Tl(s) +0.72半反应E°(V)[注 1]来源PtCl62−+ 2 e−PtCl42−+ 2 Cl−+0.726 [7]H2SeO3(aq) + 4 H++ 4 e−Se(s) + 3 H2O +0.74Rh3++ 3 e−Rh(s) +0.758 [11] PtCl42−+ 2 e−Pt(s) + 4 Cl−+0.758 [7]Fe3++ e−Fe2++0.77Ag++ e−Ag(s) +0.7996 [5] Hg22++ 2 e−2 Hg(l) +0.80NO3−(aq) + 2 H++ e−NO2(g) + H2O +0.80FeO42−+ 5 H2O + 6 e−Fe2O3(s) + 10 OH−+0.81 [15]H2(g) + 2 OH−2 H2O + 2 e−+0.828 [19] [AuBr4]−+ 3 e−Au(s) + 4 Br−+0.85Hg2++ 2 e−Hg(l) +0.85半反应E°(V)[注 1]来源MnO4−+ H++ e−HMnO4−+0.902 Hg2++ 2 e−Hg22++0.91 [2] Pd2++ 2 e−Pd(s) +0.915 [7] [AuCl4]−+ 3 e−Au(s) + 4 Cl−+0.93MnO2(s) + 4 H++ e−Mn3++ 2 H2O +0.95[AuBr2]−+ e−Au(s) + 2 Br−+0.96[HXeO6]3−+ 2 H2O + 2 e−+ [HXeO4]−+ 4 OH−+0.99 [20] HNO2+ H++ e-= NO(g)+ H2O +0.996H6TeO6(aq) + 2 H++ 2 e−TeO2(s) + 4 H2O +1.02 [21] Br2(l) + 2 e−2 Br−+1.07Br2(aq) + 2 e−2 Br−+1.09 [9] NO2(g) + H++ e-= HNO2+1.093半反应E°(V)[注 1]来源IO3−+ 5 H++ 4 e−HIO(aq) + 2 H2O +1.13[AuCl2]−+ e−Au(s) + 2 Cl−+1.15HSeO4−+ 3 H++ 2 e−H2SeO3(aq) + H2O +1.15Ir3++ 3 e−Ir(s) +1.156 [11] Ag2O(s) + 2 H++ 2 e−2 Ag(s) + H2O +1.17ClO3−+ 2 H++ e−ClO2(g) + H2O +1.18[HXeO6]3−+ 5 H2O + 8 e−Xe(g) + 11 OH−+1.18 [20]Pt2++ 2 e−Pt(s) +1.188 [7] ClO2(g) + H++ e−HClO2(aq) +1.192 IO3−+ 12 H++ 10 e−I2(s) + 6 H2O +1.20ClO4−+ 2 H++ 2 e−ClO3−+ H2O +1.20O2(g) + 4 H++ 4 e−2 H2O+1.229 [9]半反应E°(V)[注 1]来源MnO2(s) + 4 H++ 2 e−Mn2++ 2H2O +1.23[HXeO4]−+ 3 H2O + 6 e−Xe(g) + 7 OH−+1.24 [20]Tl3++ 2 e−Tl++1.25Cr2O72 −+ 14 H++ 6 e−2 Cr3++ 7 H2O +1.33Cl2(g) + 2 e−2 Cl−+1.36 [9] CoO2(s) + 4 H++ e−Co3++ 2 H2O +1.422 NH3OH++ H++ 2 e−N2H5++ 2 H2O +1.42 [6]2 HIO(aq) + 2 H++ 2 e−I2(s) + 2 H2O +1.44Ce4++ e−Ce3++1.44BrO3−+ 5 H++ 4 e−HBrO(aq) + 2 H2O +1.45β-PbO2(s) + 4 H++ 2 e−Pb2++ 2 H2O +1.460 [2]α-PbO2(s) + 4 H++ 2 e−Pb2++ 2 H2O +1.468 [2]半反应E°(V)[注 1]来源2 BrO3−+ 12 H++ 10 e−Br2(l) + 6 H2O +1.482ClO3−+ 12 H++ 10 e−Cl2(g) + 6 H2O +1.49HO2+ H++ e−H2O2+1.495 [11] MnO4−+ 8 H++ 5 e−Mn2++ 4 H2O +1.51HO2•+ H++ e−H2O2(aq) +1.51Au3++ 3 e−Au(s) +1.52NiO2(s) + 4 H++ 2 e−Ni2++ 2 OH−+1.592 HClO(aq) + 2 H++ 2 e−Cl2(g) + 2 H2O +1.63Ag2O3(s) + 6 H++ 4 e−2 Ag++ 3 H2O +1.67HClO2(aq) + 2 H++ 2 e−HClO(aq) + H2O +1.67Pb4++ 2 e−Pb2++1.69 [2] MnO4−+ 4 H++ 3 e−MnO2(s) + 2 H2O +1.70半反应E°(V)[注 1]来源AgO(s) + 2 H++ e−Ag++ H2O +1.77 H2O2(aq) + 2 H++ 2 e−2 H2O +1.776Co3++ e−Co2++1.82Au++ e−Au(s) +1.83 [2] BrO4−+ 2 H++ 2 e−BrO3−+ H2O +1.85Ag2++ e−Ag++1.98 [2]S2O82−+ 2 e−2 SO42−+2.07O3(g) + 2 H++ 2 e−O2(g) + H2O +2.075 [7] HMnO4−+ 3 H++ 2 e−MnO2(s) + 2 H2O +2.09XeO3(aq) + 6 H++ 6 e−Xe(g) + 3 H2O +2.12 [20]H4XeO6(aq) + 8 H++ 8 e−Xe(g) + 6 H2O +2.18 [20] FeO42−+ 3 e−+ 8 H+Fe3++ 4 H2O +2.20 [22] XeF2(aq) + 2 H++ 2 e−Xe(g) + 2HF(aq) +2.32 [20]半反应E°(V)[注 1]来源H4XeO6(aq) + 2 H++ 2 e−XeO3(aq) + H2O +2.42 [20]F2(g) + 2 e−2 F−+2.87 [2][9] F2(g) + 2 H++ 2 e−2 HF(aq) +3.05 [2]Tb4++ e− Tb3++3.05 [11]。