标准电极电势
标准电极电势是可逆电极在标准状态及平衡态时的电势,也就是标准态时的平衡电势,记作、或,上标表示标准态。标准状态的溶质活度每公升1莫尔,气体压强10万Pa,温度一般为298K。 虽然电池的电动势可以直接测定,但单一可逆电极的标准电极电势却只有相对值没有绝对值,而且随温度、浓度和压强而变。电极电势的基准是标准氢电极:标准状态的H⁺/H₂电极电势定为0V,即,其他电极电势的值在此基础上获得。当某半电池和标准氢电池电极相连时为负极,该半电池的半反应的标准电极电势为负值,且绝对值与电池电动势相等;若为正极则相反。这样求得的值称作还原电势,总反应的标准电极电势也就是两个半反应标准电极电势的差,Eo为正时反应自发。 任何温度下标准氢电极的标准电极电势值都为0,但其他电极电势值会受到温度影响。以Ni/NiO电极为例,它可以用作高温伪参比电极,电极电势在0至400°C大致符合以下公式:[1]
- ,T为温度
标准电极电势可以实验或热力学计算获得。,标准氢电极的反应自由能是零,水合氢离子和水合电子的标准生成自由能也是零,这样便可计算众多无法用实验测得的标准电极电势值(如氟气)。标准电极电势没有加成性,要想求相加得到的第三反应的标准电极电势,还需要借助上述公式来求解。 标准电极电势不随半反应的方向和计量系数改变,但它受到浓度和反应物形态影响。非标态的电极电势值可以能斯特方程求得。标准电极电势值只是热力学数据,不可用于预测反应速率和其他动力学性质,而且它的值在水溶液体系中测定,不可用于其他溶剂或高温时的反应。
- 能斯特方程:
标准电极电势有很大的实用价值,可用来判断氧化剂与还原剂的相对强弱,判断氧化还原反应的方向,计算原电池的电动势、反应自由能、平衡常数,计算其他半反应的标准电极电势,等等。将半反应按电极电势由低到高排序,可以得到标准电极电势表,可十分简明判断氧还反应的方向。
标准电极电势表
[编辑]表中电极电势以以下条件测得((s):固体;(l):液体;(g):气体;(aq):水溶液;(Hg):汞齐):
- 参比电极:标准氢电极,所有离子的数据都在水溶液测得[2][3][4][5][6][7][8][9][10]
- 活性度:统一为纯固体、纯液体或水溶液
- 温度:298.15K/25摄氏度
- 水溶液或汞齐之有效离子浓度:每公升1摩
- 气体反应物分压:1大气压/101325帕
单击顶栏箭咀可将数据按元素符号、反应物、产物或标准电极电势值排序。
元素 | 氧化剂 | 半反应 | 还原剂 | E°/伏 | 来源 |
---|---|---|---|---|---|
钡 | Ba⁺+e⁻ | ⇌ | Ba(s) | −4.38 | [2][4][11] |
锶 | Sr⁺+e⁻ | ⇌ | Sr(s) | −4.10 | [12][2][4][13] |
钙 | Ca⁺+e⁻ | ⇌ | Ca(s) | −3.8 | [12][2][4][13] |
钍 | Th⁴⁺+e⁻ | ⇌ | Th³⁺ | −3.6 | [14] |
镨 | Pr³⁺+e⁻ | ⇌ | Pr²⁺ | −3.1 | [15] |
氮 | 3N₂(g)+2H⁺+2e⁻ | ⇌ | 2HN₃(aq) | −3.09 | [7] |
锂 | Li⁺+e⁻ | ⇌ | Li(s) | −3.0401 | [6] |
氮 | N₂(g)+4H₂O+2e⁻ | ⇌ | 2NH₂OH(aq)+2OH⁻ | −3.04 | [7] |
铯 | Cs⁺+e⁻ | ⇌ | Cs(s) | −3.026 | [6] |
钙 | Ca(OH)₂(s)+2e⁻ | ⇌ | Ca(s)+2OH⁻ | −3.02 | [12] |
铒 | Er³⁺+e⁻ | ⇌ | Er²⁺ | −3.0 | [16] |
钡 | Ba(OH)₂(s)+2e⁻ | ⇌ | Ba(s)+2OH⁻ | −2.99 | [12] |
铷 | Rb⁺+e⁻ | ⇌ | Rb(s) | −2.98 | [5] |
镁 | Mg⁺+e⁻ | ⇌ | Mg(s) | −2.93 | [11] |
钾 | K⁺+e⁻ | ⇌ | K(s) | −2.92 | [6] |
钡 | Ba²⁺+2e⁻ | ⇌ | Ba(s) | −2.912 | [6] |
镧 | La(OH)₃(s)+3e⁻ | ⇌ | La(s)+3OH⁻ | −2.90 | [17] |
钫 | Fr⁺+e⁻ | ⇌ | Fr(s) | −2.9 | [12] |
锶 | Sr²⁺+2e⁻ | ⇌ | Sr(s) | −2.899 | [6] |
锶 | Sr(OH)₂(s)+2e⁻ | ⇌ | Sr(s)+2OH⁻ | −2.88 | [12] |
钙 | Ca²⁺+2e⁻ | ⇌ | Ca(s) | −2.868 | [6] |
氮(铵) | NH₄⁺+e⁻ | ⇌ | NH₄• | −2.85 | |
碳(碳锂) | Li⁺+C₆(s)+e⁻ | ⇌ | LiC₆(s) | −2.84 | [18] |
铕 | Eu²⁺+2e⁻ | ⇌ | Eu(s) | −2.812 | [6] |
镭 | Ra²⁺+2e⁻ | ⇌ | Ra(s) | −2.8 | [6] |
钬 | Ho³⁺+e⁻ | ⇌ | Ho²⁺ | −2.8 | [13] |
鉳 | Bk³⁺+e⁻ | ⇌ | Bk²⁺ | −2.8 | [13] |
镱 | Yb²⁺+2e⁻ | ⇌ | Yb(s) | −2.76 | [12][2] |
钠 | Na⁺+e⁻ | ⇌ | Na(s) | −2.71 | [6][10] |
钕 | Nd³⁺+e⁻ | ⇌ | Nd²⁺ | −2.7 | [13] |
镁 | Mg(OH)₂+2e⁻ | ⇌ | Mg(s)+2OH⁻ | −2.69 | [13] |
钐 | Sm²⁺+2e⁻ | ⇌ | Sm(s) | −2.68 | [12][2] |
铍 | Be₂O₃²⁻+3H₂O+4e⁻ | ⇌ | 2Be(s)+6OH⁻ | −2.63 | [13] |
Pm | Pm³⁺+e⁻ | ⇌ | Pm²⁺ | −2.6 | [13] |
Dy | Dy³⁺+e⁻ | ⇌ | Dy²⁺ | −2.6 | [13] |
锘 | No²⁺+2e⁻ | ⇌ | No(s) | −2.50 | [12] |
铪 | HfO(OH)₂(s)+H₂O+4e⁻ | ⇌ | Hf(s)+4OH⁻ | −2.50 | [12] |
钍 | Th(OH)₄(s)+4e⁻ | ⇌ | Th(s)+4OH⁻ | −2.48 | [12] |
钔 | Md²⁺+2e⁻ | ⇌ | Md(s) | −2.40 | [12] |
Tm | Tm²⁺+2e⁻ | ⇌ | Tm(s) | −2.4 | [13] |
镧 | La³⁺+3e⁻ | ⇌ | La(s) | −2.379 | [6] |
钇 | Y³⁺+3e⁻ | ⇌ | Y(s) | −2.372 | [6] |
镁 | Mg²⁺+2e⁻ | ⇌ | Mg(s) | −2.372 | [6] |
锆 | ZrO(OH)₂(s)+H₂O+4e⁻ | ⇌ | Zr(s)+4OH⁻ | −2.36 | [6] |
镨 | Pr³⁺+3e⁻ | ⇌ | Pr(s) | −2.353 | [12] |
铈 | Ce³⁺+3e⁻ | ⇌ | Ce(s) | −2.336 | [12] |
铒 | Er³⁺+3e⁻ | ⇌ | Er(s) | −2.331 | [12] |
钬 | Ho³⁺+3e⁻ | ⇌ | Ho(s) | −2.33 | [12] |
铝 | Al(OH)₄⁻+3e⁻ | ⇌ | Al(s)+4OH⁻ | −2.33 | |
钕 | Nd³⁺+3e⁻ | ⇌ | Nd(s) | −2.323 | [13] |
Tm | Tm³⁺+3e⁻ | ⇌ | Tm(s) | −2.319 | [13] |
铝 | Al(OH)₃(s)+3e⁻ | ⇌ | Al(s)+3OH⁻ | −2.31 | |
钐 | Sm³⁺+3e⁻ | ⇌ | Sm(s) | −2.304 | [13] |
Fm | Fm²⁺+2e⁻ | ⇌ | Fm | −2.3 | [13] |
Am | Am³⁺+e⁻ | ⇌ | Am²⁺ | −2.3 | [13] |
Dy | Dy³⁺+3e⁻ | ⇌ | Dy(s) | −2.295 | [13] |
Lu | Lu³⁺+3e⁻ | ⇌ | Lu(s) | −2.28 | [13] |
铽 | Tb³⁺+3e⁻ | ⇌ | Tb(s) | −2.28 | |
钆 | Gd³⁺+3e⁻ | ⇌ | Gd(s) | −2.279 | [13] |
氢 | H₂(g)+2e⁻ | ⇌ | 2H⁻ | −2.25 | |
Es | Es²⁺+2e⁻ | ⇌ | Es(s) | −2.23 | [13] |
Pm | Pm²⁺+2e⁻ | ⇌ | Pm(s) | −2.2 | [13] |
Tm | Tm³⁺+e⁻ | ⇌ | Tm²⁺ | −2.2 | [13] |
Dy | Dy²⁺+2e⁻ | ⇌ | Dy(s) | −2.2 | [13] |
锕 | Ac³⁺+3e⁻ | ⇌ | Ac(s) | −2.20 | |
Yb | Yb³⁺+3e⁻ | ⇌ | Yb(s) | −2.19 | [13] |
铍 | Be⁺+e⁻ | ⇌ | Be(s) | −2.12 | [11] |
鉲 | Cf²⁺+2e⁻ | ⇌ | Cf(s) | −2.12 | [12] |
钕 | Nd²⁺+2e⁻ | ⇌ | Nd(s) | −2.1 | [13] |
钬 | Ho²⁺+2e⁻ | ⇌ | Ho(s) | −2.1 | [13] |
钪 | Sc³⁺+3e⁻ | ⇌ | Sc(s) | −2.077 | [19] |
铝 | AlF₆³⁻+3e⁻ | ⇌ | Al(s)+6F⁻ | −2.069 | [13] |
鋂 | Am³⁺+3e⁻ | ⇌ | Am(s) | −2.048 | [12] |
Cm | Cm³⁺+3e⁻ | ⇌ | Cm(s) | −2.04 | [13] |
钚 | Pu³⁺+3e⁻ | ⇌ | Pu(s) | −2.031 | [13] |
Pr | Pr²⁺+2e⁻ | ⇌ | Pr(s) | −2 | [13] |
铒 | Er²⁺+2e⁻ | ⇌ | Er(s) | −2 | [13] |
铕 | Eu³⁺+3e⁻ | ⇌ | Eu(s) | −1.991 | [13] |
Lr | Lr³⁺+3e⁻ | ⇌ | Lr | −1.96 | [13] |
鉲 | Cf³⁺+3e⁻ | ⇌ | Cf(s) | −1.94 | [12] |
钙 | Ca²⁺+e⁻ | ⇌ | Ca⁺ | −1.936 | [6][12] |
Es | Es³⁺+3e⁻ | ⇌ | Es(s) | −1.91 | [13] |
Pa | Pa⁴⁺+e⁻ | ⇌ | Pa³⁺ | −1.9 | [13] |
鋂 | Am²⁺+2e⁻ | ⇌ | Am(s) | −1.9 | [12] |
钍 | Th⁴⁺+4e⁻ | ⇌ | Th(s) | −1.899 | [13] |
镄 | Fm³⁺+3e⁻ | ⇌ | Fm(s) | −1.89 | [12] |
Np | Np³⁺+3e⁻ | ⇌ | Np(s) | −1.856 | [13] |
铍 | Be²⁺+2e⁻ | ⇌ | Be(s) | −1.85 | |
磷 | H₂PO₂⁻+e⁻ | ⇌ | P(s)+2OH⁻ | −1.82 | [13] |
锶 | Sr²⁺+2e⁻ | ⇌ | Sr(Hg) | −1.793 | [20] |
硼 | H₂BO₃⁻+H₂O+3e⁻ | ⇌ | B(s)+4OH⁻ | −1.79 | [21] |
钍 | ThO₂+4H⁺+4e⁻ | ⇌ | Th(s)+2H₂O | −1.789 | [22] |
铪 | HfO²⁺+2H⁺+4e⁻ | ⇌ | Hf(s)+H₂O | −1.724 | [23] |
磷 | HPO₃²⁻+2H₂O+3e⁻ | ⇌ | P(s)+5OH⁻ | −1.71 | [24] |
矽 | SiO₃²⁻+3H₂O+4e⁻ | ⇌ | Si(s)+6OH⁻ | −1.697 | [24] |
𬬻 | Rf⁴⁺+4e⁻ | ⇌ | Rf(s) | −1.67 | [25] |
铀 | U³⁺+3e⁻ | ⇌ | U(s) | −1.66 | [8] |
铝 | Al³⁺+3e⁻ | ⇌ | Al(s) | −1.66 | [10] |
钛 | Ti²⁺+2e⁻ | ⇌ | Ti(s) | −1.63 | [10] |
鉳 | Bk²⁺+2e⁻ | ⇌ | Bk(s) | −1.6 | [12] |
锆 | ZrO₂(s)+4H⁺+4e⁻ | ⇌ | Zr(s)+2H₂O | −1.553 | [6] |
铪 | Hf⁴⁺+4e⁻ | ⇌ | Hf(s) | −1.55 | [12] |
锆 | Zr⁴⁺+4e⁻ | ⇌ | Zr(s) | −1.45 | [6] |
钛 | Ti³⁺+3e⁻ | ⇌ | Ti(s) | −1.37 | [26] |
钛 | TiO(s)+2H⁺+2e⁻ | ⇌ | Ti(s)+H₂O | −1.31 | |
碳 | C⁴⁺+4e⁻ | ⇌ | C | −1.3 | [27] |
钛 | Ti₂O₃(s)+2H⁺+2e⁻ | ⇌ | 2TiO(s)+H₂O | −1.23 | |
锌 | Zn(OH)₄²⁻+2e⁻ | ⇌ | Zn(s)+4OH⁻ | −1.199 | [28] |
锰 | Mn²⁺+2e⁻ | ⇌ | Mn(s) | −1.185 | [28] |
铁 | Fe(CN)₆⁴⁻+6H⁺+2e⁻ | ⇌ | Fe(s)+6HCN(aq) | −1.16 | [29] |
钒 | V²⁺+2e⁻ | ⇌ | V(s) | −1.175 | [3] |
碲 | Te(s)+2e⁻ | ⇌ | Te²⁻ | −1.143 | [3] |
铌 | Nb³⁺+3e⁻ | ⇌ | Nb(s) | −1.099 | |
锡 | Sn(s)+4H⁺+4e⁻ | ⇌ | SnH₄(g) | −1.07 | |
铟 | In(OH)₃(s)+3e⁻ | ⇌ | In(s)+3OH⁻ | −0.99 | [12] |
矽 | SiO₂(s)+4H⁺+4e⁻ | ⇌ | Si(s)+2H₂O | −0.91 | |
硼 | B(OH)₃(aq)+3H⁺+3e⁻ | ⇌ | B(s)+3H₂O | −0.89 | |
铁 | Fe(OH)₂(s)+2e⁻ | ⇌ | Fe(s)+2OH⁻ | −0.89 | [29] |
铁 | Fe₂O₃(s)+3H₂O+2e⁻ | ⇌ | 2Fe(OH)₂(s)+2OH⁻ | −0.86 | [29] |
钛 | TiO²⁺+2H⁺+4e⁻ | ⇌ | Ti(s)+H₂O | −0.86 | |
水 | 2H₂O+2e⁻ | ⇌ | H₂(g)+2OH⁻ | −0.8277 | [6] |
铋 | Bi(s)+3H⁺+3e⁻ | ⇌ | BiH₃ | −0.8 | [28] |
锌 | Zn²⁺+2e⁻ | ⇌ | Zn(Hg) | −0.7628 | [6] |
锌 | Zn²⁺+2e⁻ | ⇌ | Zn(s) | −0.7618 | [6] |
钽 | Ta₂O₅(s)+10H⁺+10e⁻ | ⇌ | 2Ta(s)+5H₂O | −0.75 | |
铬 | Cr³⁺+3e⁻ | ⇌ | Cr(s) | −0.74 | |
镍 | Ni(OH)₂(s)+2e⁻ | ⇌ | Ni(s)+2OH⁻ | −0.72 | [30] |
银 | Ag₂S(s)+2e⁻ | ⇌ | 2Ag(s)+S²⁻(aq) | −0.69 | |
金(金氰) | Au(CN)₂⁻+e⁻ | ⇌ | Au(s)+2CN⁻ | −0.60 | |
钽 | Ta³⁺+3e⁻ | ⇌ | Ta(s) | −0.6 | |
铅 | PbO(s)+H₂O+2e⁻ | ⇌ | Pb(s)+2OH⁻ | −0.58 | |
钛 | 2TiO₂(s)+2H⁺+2e⁻ | ⇌ | Ti₂O₃(s)+H₂O | −0.56 | |
镓 | Ga³⁺+3e⁻ | ⇌ | Ga(s) | −0.53 | |
铀 | U⁴⁺+e⁻ | ⇌ | U³⁺ | −0.52 | [8] |
磷 | H₃PO₂(aq)+H⁺+e⁻ | ⇌ | P(白)[31]+2H₂O | −0.508 | [6] |
磷 | H₃PO₃(aq)+2H⁺+2e⁻ | ⇌ | H₃PO₂(aq)+H₂O | −0.499 | [6] |
镍 | NiO₂(s)+2H₂O+2e⁻ | ⇌ | Ni(OH)₂(s)+2OH⁻ | −0.49 | [32] |
磷 | H₃PO₃(aq)+3H⁺+3e⁻ | ⇌ | P(红)[31]+3H₂O | −0.454 | [6] |
铜 | Cu(CN)₂⁻+e⁻ | ⇌ | Cu(s)+2CN⁻ | −0.44 | [33] |
铁 | Fe²⁺+2e⁻ | ⇌ | Fe(s) | −0.44 | [10] |
碳 | 2CO₂(g)+2H⁺+2e⁻ | ⇌ | (HO₂C)₂(aq) | −0.43 | |
铬 | Cr³⁺+e⁻ | ⇌ | Cr²⁺ | −0.42 | |
镉 | Cd²⁺+2e⁻ | ⇌ | Cd(s) | −0.40 | [10] |
硒 | SeO₃²⁻+4e⁻+3H₂O | ⇌ | Se+6OH⁻ | −0.37 | [34] |
锗 | GeO₂(s)+2H⁺+2e⁻ | ⇌ | GeO(s)+H₂O | −0.37 | |
铜 | Cu₂O(s)+H₂O+2e⁻ | ⇌ | 2Cu(s)+2OH⁻ | −0.360 | [6] |
铅 | PbSO₄(s)+2e⁻ | ⇌ | Pb(s)+SO₄²⁻ | −0.3588 | [6] |
铅 | PbSO₄(s)+2e⁻ | ⇌ | Pb(Hg)+SO₄²⁻ | −0.3505 | [6] |
铕 | Eu³⁺+e⁻ | ⇌ | Eu²⁺ | −0.35 | [8] |
铟 | In³⁺+3e⁻ | ⇌ | In(s) | −0.34 | [3] |
铊 | Tl⁺+e⁻ | ⇌ | Tl(s) | −0.34 | [3] |
酶 | NAD(P)⁺+H⁺+2e⁻ | ⇌ | NAD(P)H | −0.32 | [35] |
硼 | B³⁺+3e⁻ | ⇌ | B(s) | −0.31 | |
锗 | Ge(s)+4H⁺+4e⁻ | ⇌ | GeH₄(g) | −0.29 | |
钴 | Co²⁺+2e⁻ | ⇌ | Co(s) | −0.28 | [6] |
磷 | H₃PO₄(aq)+2H⁺+2e⁻ | ⇌ | H₃PO₃(aq)+H₂O | −0.276 | [6] |
钒 | V³⁺+e⁻ | ⇌ | V²⁺ | −0.26 | [10] |
镍 | Ni²⁺+2e⁻ | ⇌ | Ni(s) | −0.25 | |
砷 | As(s)+3H⁺+3e⁻ | ⇌ | AsH₃(g) | −0.23 | [3] |
镓 | Ga⁺+e⁻ | ⇌ | Ga(s) | −0.2 | [36] |
银 | AgI(s)+e⁻ | ⇌ | Ag(s)+I⁻ | −0.15224 | [28] |
钼 | MoO₂(s)+4H⁺+4e⁻ | ⇌ | Mo(s)+2H₂O | −0.15 | |
硅 | Si(s)+4H⁺+4e⁻ | ⇌ | SiH₄(g) | −0.14 | |
锡 | Sn²⁺+2e⁻ | ⇌ | Sn(s) | −0.13 | |
氧 | O₂(g)+H⁺+e⁻ | ⇌ | HO₂•(aq) | −0.13 | |
铅 | Pb²⁺+2e⁻ | ⇌ | Pb(s) | −0.13 | [10] |
钨 | WO₂(s)+4H⁺+4e⁻ | ⇌ | W(s)+2H₂O | −0.12 | |
磷 | P(红)+3H⁺+3e⁻ | ⇌ | PH₃(g) | −0.111 | [6] |
碳 | CO₂(g)+2H⁺+2e⁻ | ⇌ | HCO₂H(aq) | −0.11 | |
硒 | Se(s)+2H⁺+2e⁻ | ⇌ | H₂Se(g) | −0.11 | |
碳 | CO₂(g)+2H⁺+2e⁻ | ⇌ | CO(g)+H₂O | −0.11 | |
铜 | Cu(NH₃)₂⁺+e⁻ | ⇌ | Cu(s)+2NH₃(aq) | −0.1 | [37] |
锡 | SnO(s)+2H⁺+2e⁻ | ⇌ | Sn(s)+H₂O | −0.10 | |
锡 | SnO₂(s)+2H⁺+2e⁻ | ⇌ | SnO(s)+H₂O | −0.09 | |
钨 | WO₃(aq)+6H⁺+6e⁻ | ⇌ | W(s)+3H₂O | −0.09 | [3] |
磷 | P(白)+3H⁺+3e⁻ | ⇌ | PH₃(g) | −0.063 | [6] |
氢(氘) | 2D⁺+2e⁻ | ⇌ | D₂(g) | −0.044 | |
铁 | Fe³⁺+3e⁻ | ⇌ | Fe(s) | −0.04 | [29] |
碳(甲酸) | HCO₂H(aq)+2H⁺+2e⁻ | ⇌ | HCHO(aq)+H₂O | −0.03 | |
氢 | 2H⁺+2e⁻ | ⇌ | H₂(g) | ≡0 | |
银 | AgBr(s)+e⁻ | ⇌ | Ag(s)+Br⁻ | +0.07133 | [28] |
硫 | S₄O₆²⁻+2e⁻ | ⇌ | 2S₂O₃²⁻ | +0.08 | |
铁 | Fe₃O₄(s)+8H⁺+8e⁻ | ⇌ | 3Fe(s)+4H₂O | +0.085 | [9][10] |
氮 | N₂(g)+2H₂O+6H⁺+6e⁻ | ⇌ | 2NH₄OH(aq) | +0.092 | |
汞 | HgO(s)+H₂O+2e⁻ | ⇌ | Hg(l)+2OH⁻ | +0.0977 | |
铜 | Cu(NH₃)₄²⁺+e⁻ | ⇌ | Cu(NH₃)₂⁺+2NH₃ | +0.10 | [3] |
钌 | Ru(NH₃)₆³⁺+e⁻ | ⇌ | Ru(NH₃)₆²⁺ | +0.10 | [8] |
氮(肼) | N₂H₄(aq)+4H₂O+2e⁻ | ⇌ | 2NH₄⁺+4OH⁻ | +0.11 | [7] |
钼 | H₂MoO₄(aq)+6H⁺+6e⁻ | ⇌ | Mo(s)+4H₂O | +0.11 | |
锗 | Ge⁴⁺+4e⁻ | ⇌ | Ge(s) | +0.12 | |
碳 | C(s)+4H⁺+4e⁻ | ⇌ | CH₄(g) | +0.13 | [3] |
碳 | HCHO(aq)+2H⁺+2e⁻ | ⇌ | CH₃OH(aq) | +0.13 | |
硫 | S(s)+2H⁺+2e⁻ | ⇌ | H₂S(g) | +0.14 | |
锡 | Sn⁴⁺+2e⁻ | ⇌ | Sn²⁺ | +0.15 | |
铜 | Cu²⁺+e⁻ | ⇌ | Cu⁺ | +0.159 | [3] |
硫 | HSO₄⁻+3H⁺+2e⁻ | ⇌ | SO₂(aq)+2H₂O | +0.16 | |
铀 | UO₂²⁺+e⁻ | ⇌ | UO₂⁺ | +0.163 | [8] |
硫 | SO₄²⁻+4H⁺+2e⁻ | ⇌ | SO₂(aq)+2H₂O | +0.17 | |
钛 | TiO²⁺+2H⁺+e⁻ | ⇌ | Ti³⁺+H₂O | +0.19 | |
铋 | Bi³⁺+2e⁻ | ⇌ | Bi⁺ | +0.2 | |
锑 | SbO⁺+2H⁺+3e⁻ | ⇌ | Sb(s)+H₂O | +0.20 | |
碳 | CO₂(g)+4H⁺+4e⁻ | ⇌ | C(s)+2H₂O | +0.205 | |
铁 | 3Fe₂O₃(s)+2H⁺+2e⁻ | ⇌ | 2Fe₃O₄(s)+H₂O | +0.22 | :p.100 |
银 | AgCl(s)+e⁻ | ⇌ | Ag(s)+Cl⁻ | +0.22233 | [28] |
砷 | H₃AsO₃(aq)+3H⁺+3e⁻ | ⇌ | As(s)+3H₂O | +0.24 | |
钌 | Ru³⁺(aq)+e⁻ | ⇌ | Ru²⁺(aq) | +0.249 | [38] |
锗 | GeO(s)+2H⁺+2e⁻ | ⇌ | Ge(s)+H₂O | +0.26 | |
铀 | UO₂⁺+4H⁺+e⁻ | ⇌ | U⁴⁺+2H₂O | +0.273 | [8] |
砹 | At₂+e⁻ | ⇌ | 2At⁻ | +0.3 | [12] |
铼 | Re³⁺+3e⁻ | ⇌ | Re(s) | +0.300 | |
铋 | Bi³⁺+3e⁻ | ⇌ | Bi(s) | +0.32 | |
碳(氰) | 2HCNO+2H⁺+2e⁻ | ⇌ | (CN)₂+2H₂O | +0.330 | [39] |
钒 | VO²⁺+2H⁺+e⁻ | ⇌ | V³⁺+H₂O | +0.34 | |
铜 | Cu²⁺+2e⁻ | ⇌ | Cu(s) | +0.340 | [3] |
砈 | At⁺+2e⁻ | ⇌ | At⁻ | +0.36 | [40] |
铁(铁氰) | Fe(CN)₆³⁻+e⁻ | ⇌ | Fe(CN)₆⁴⁻ | +0.36 | |
碳(氰) | (CN)₂+2H⁺+2e⁻ | ⇌ | 2HCN | +0.373 | [41] |
𨱏 | Tc²⁺+2e⁻ | ⇌ | Tc(s) | +0.40 | [12] |
氧 | O₂(g)+2H₂O+4e⁻ | ⇌ | 4OH⁻(aq) | +0.40 | [10] |
钼 | H₂MoO₄+6H⁺+3e⁻ | ⇌ | Mo³⁺+2H₂O | +0.43 | |
钌 | Ru²⁺+2e⁻ | ⇌ | Ru(s) | +0.455 | [12] |
铋 | Bi⁺+e⁻ | ⇌ | Bi(s) | +0.50 | |
碳 | CH₃OH(aq)+2H⁺+2e⁻ | ⇌ | CH₄(g)+H₂O | +0.50 | |
硫 | SO₂(aq)+4H⁺+4e⁻ | ⇌ | S(s)+2H₂O | +0.50 | |
铜 | Cu⁺+e⁻ | ⇌ | Cu(s) | +0.520 | [3] |
碳 | CO(g)+2H⁺+2e⁻ | ⇌ | C(s)+H₂O | +0.52 | |
碘 | I₃⁻+2e⁻ | ⇌ | 3I⁻ | +0.53 | [10] |
碘 | I₂(s)+2e⁻ | ⇌ | 2I⁻ | +0.54 | [10] |
金(金碘) | AuI₄⁻+3e⁻ | ⇌ | Au(s)+4I⁻ | +0.56 | |
砷 | H₃AsO₄(aq)+2H⁺+2e⁻ | ⇌ | H₃AsO₃(aq)+H₂O | +0.56 | |
金(金碘) | AuI₂⁻+e⁻ | ⇌ | Au(s)+2I⁻ | +0.58 | |
锰 | MnO₄⁻+2H₂O+3e⁻ | ⇌ | MnO₂(s)+4OH⁻ | +0.59 | |
铑 | Rh⁺+e⁻ | ⇌ | Rh(s) | +0.600 | [12] |
硫 | S₂O₃²⁻+6H⁺+4e⁻ | ⇌ | 2S(s)+3H₂O | +0.60 | |
铁(二茂铁) | Fc+e⁻ | ⇌ | Fc(s) | +0.641 | [42] |
银 | CH₃CO₂Ag+e⁻ | ⇌ | Ag+CH₃CO₂⁻ | +0.643 | [12] |
钼 | H₂MoO₄(aq)+2H⁺+2e⁻ | ⇌ | MoO₂(s)+2H₂O | +0.65 | |
碳(苯醌) | +2H⁺+2e⁻ | ⇌ | +0.6992 | [28] | |
氧 | O₂(g)+2H⁺+2e⁻ | ⇌ | H₂O₂(aq) | +0.70 | |
铊 | Tl³⁺+3e⁻ | ⇌ | Tl(s) | +0.72 | |
铂(铂氯) | PtCl₆²⁻+2e⁻ | ⇌ | PtCl₄²⁻+2Cl⁻ | +0.726 | [8] |
铁 | Fe₂O₃(s)+6H⁺+2e⁻ | ⇌ | 2Fe²⁺+3H₂O | +0.728 | :p.100 |
硒 | H₂SeO₃(aq)+4H⁺+4e⁻ | ⇌ | Se(s)+3H₂O | +0.74 | |
砈 | AtO⁺+2H⁺+2e⁻ | ⇌ | At⁺+H₂O | +0.74 | [43] |
铑 | Rh³⁺+3e⁻ | ⇌ | Rh(s) | +0.758 | [12] |
铂(铂氯) | PtCl₄²⁻+2e⁻ | ⇌ | Pt(s)+4Cl⁻ | +0.758 | [8] |
钋 | Po⁴⁺+4e⁻ | ⇌ | Po | +0.76 | [44] |
硫 | (SCN)₂+2e⁻ | ⇌ | 2SCN⁻ | +0.77 | [44] |
铁 | Fe³⁺+e⁻ | ⇌ | Fe²⁺ | +0.77 | |
银 | Ag⁺+e⁻ | ⇌ | Ag(s) | +0.7996 | [6] |
汞 | Hg₂²⁺+2e⁻ | ⇌ | 2Hg(l) | +0.80 | |
氮(硝) | NO₃⁻(aq)+2H⁺+e⁻ | ⇌ | NO₂(g)+H₂O | +0.80 | |
铁 | FeO₄²⁻+5H₂O+6e⁻ | ⇌ | Fe₂O₃(s)+10OH⁻ | +0.81 | [29] |
金(金溴) | AuBr₄⁻+3e⁻ | ⇌ | Au(s)+4Br⁻ | +0.85 | |
汞 | Hg²⁺+2e⁻ | ⇌ | Hg(l) | +0.85 | |
铱 | IrCl₆²⁻+e⁻ | ⇌ | IrCl₆³⁻ | +0.87 | [45] |
锰 | MnO₄⁻+H⁺+e⁻ | ⇌ | HMnO₄⁻ | +0.90 | |
钋 | Po⁴⁺+2e⁻ | ⇌ | Po²⁺ | +0.9 | [46] |
汞 | 2Hg²⁺+2e⁻ | ⇌ | Hg₂²⁺ | +0.91 | [3] |
钯 | Pd²⁺+2e⁻ | ⇌ | Pd(s) | +0.915 | [8] |
金(金氯) | AuCl₄⁻+3e⁻ | ⇌ | Au(s)+4Cl⁻ | +0.93 | |
锰 | MnO₂(s)+4H⁺+e⁻ | ⇌ | Mn³⁺+2H₂O | +0.95 | |
氮(硝) | NO₃⁻(aq)+4H⁺+3e⁻ | ⇌ | NO(g)+2H₂O(l) | +0.958 | [47] |
金(金溴) | AuBr₂⁻+e⁻ | ⇌ | Au(s)+2Br⁻ | +0.96 | |
铁 | Fe₃O₄(s)+8H⁺+2e⁻ | ⇌ | 3Fe²⁺+4H₂O | +0.98 | :p.100 |
氙 | HXeO₆³⁻+2H₂O+2e⁻ | ⇌ | HXeO₄⁻+4OH⁻ | +0.99 | [48] |
氮(硝) | HNO₂+H⁺+e⁻ | ⇌ | NO(g)+H₂O | +0.996 | |
钒 | VO₂⁺(aq)+2H⁺+e⁻ | ⇌ | VO²⁺(aq)+H₂O | +1 | [49] |
砈 | HAtO+H⁺+e⁻ | ⇌ | At+H₂O | +1.0 | [50] |
碲 | H₆TeO₆(aq)+2H⁺+2e⁻ | ⇌ | TeO₂(s)+4H₂O | +1.02 | [51] |
溴 | Br₂(l)+2e⁻ | ⇌ | 2Br⁻ | +1.065 | |
溴 | Br₂(aq)+2e⁻ | ⇌ | 2Br⁻ | +1.087 | [10] |
氮(硝) | NO₂(g)+H⁺+e⁻ | ⇌ | HNO₂ | +1.093 | |
铜 | Cu²⁺+2CN⁻+e⁻ | ⇌ | Cu(CN)₂⁻ | +1.12 | [52] |
钌 | RuO₂+4H⁺+2e⁻ | ⇌ | Ru²⁺(aq)+2H₂O | +1.120 | [53] |
碘 | IO₃⁻+5H⁺+4e⁻ | ⇌ | HIO(aq)+2H₂O | +1.13 | |
金(金氯) | AuCl₂⁻+e⁻ | ⇌ | Au(s)+2Cl⁻ | +1.15 | |
硒 | HSeO₄⁻+3H⁺+2e⁻ | ⇌ | H₂SeO₃(aq)+H₂O | +1.15 | |
铱 | Ir³⁺+3e⁻ | ⇌ | Ir(s) | +1.156 | [12] |
银 | Ag₂O(s)+2H⁺+2e⁻ | ⇌ | 2Ag(s)+H₂O | +1.17 | |
氯 | ClO₃⁻+2H⁺+e⁻ | ⇌ | ClO₂(g)+H₂O | +1.18 | |
氙 | HXeO₆³⁻+5H₂O+8e⁻ | ⇌ | Xe(g)+11OH⁻ | +1.18 | [48] |
铂 | Pt²⁺+2e⁻ | ⇌ | Pt(s) | +1.188 | [8] |
氯 | ClO₂(g)+H⁺+e⁻ | ⇌ | HClO₂(aq) | +1.19 | |
碘 | 2IO₃⁻+12H⁺+10e⁻ | ⇌ | I₂(s)+6H₂O | +1.20 | |
氯 | ClO₄⁻+2H⁺+2e⁻ | ⇌ | ClO₃⁻+H₂O | +1.20 | |
氧 | O₂(g)+4H⁺+4e⁻ | ⇌ | 2H₂O | +1.229 | [10] |
锰 | MnO₂(s)+4H⁺+2e⁻ | ⇌ | Mn²⁺+2H₂O | +1.23 | |
钌 | Ru(bipy)₃³⁺+e⁻ | ⇌ | Ru(bipy)₃²⁺ | +1.24 | [54] |
氙 | HXeO₄⁻+3H₂O+6e⁻ | ⇌ | Xe(g)+7OH⁻ | +1.24 | [48] |
铊 | Tl³⁺+2e⁻ | ⇌ | Tl⁺ | +1.25 | |
铬 | Cr₂O₇²⁻+14H⁺+6e⁻ | ⇌ | 2Cr³⁺+7H₂O | +1.33 | |
氯 | Cl₂(g)+2e⁻ | ⇌ | 2Cl⁻ | +1.36 | [10] |
钌 | RuO₄⁻(aq)+8H⁺+5e⁻ | ⇌ | Ru²⁺(aq)+4H₂O | +1.368 | [55] |
钌 | RuO₄+4H⁺+4e⁻ | ⇌ | RuO₂+2H₂O | +1.387 | [55] |
钴 | CoO₂(s)+4H⁺+e⁻ | ⇌ | Co³⁺+2H₂O | +1.42 | |
氮(肼) | 2NH₃OH⁺+H⁺+2e⁻ | ⇌ | N₂H₅⁺+2H₂O | +1.42 | [7] |
碘 | 2HIO(aq)+2H⁺+2e⁻ | ⇌ | I₂(s)+2H₂O | +1.44 | |
铈 | Ce⁴⁺+e⁻ | ⇌ | Ce³⁺ | +1.44 | |
溴 | BrO₃⁻+5H⁺+4e⁻ | ⇌ | HBrO(aq)+2H₂O | +1.45 | |
铅 | β-PbO₂(s)+4H⁺+2e⁻ | ⇌ | Pb²⁺+2H₂O | +1.460 | [3] |
铅 | α-PbO₂(s)+4H⁺+2e⁻ | ⇌ | Pb²⁺+2H₂O | +1.468 | [3] |
溴 | 2BrO₃⁻+12H⁺+10e⁻ | ⇌ | Br₂(l)+6H₂O | +1.48 | |
氯 | 2ClO₃⁻+12H⁺+10e⁻ | ⇌ | Cl₂(g)+6H₂O | +1.49 | |
氯 | HClO(aq)+H⁺+2e⁻ | ⇌ | Cl⁻(aq)+H₂O | +1.49 | [56] |
氧(超氧) | HO₂+H⁺+e⁻ | ⇌ | H₂O₂ | +1.495 | [12] |
砈 | HAtO₃+4H⁺+4e⁻ | ⇌ | HAtO+2H₂O | +1.5 | [57] |
锰 | MnO₄⁻+8H⁺+5e⁻ | ⇌ | Mn²⁺+4H₂O | +1.51 | |
HO₂•+H⁺+e⁻ | ⇌ | H₂O₂(aq) | +1.51 | ||
金 | Au³⁺+3e⁻ | ⇌ | Au(s) | +1.52 | |
钌 | RuO₄²⁻(aq)+8H⁺+4e⁻ | ⇌ | Ru²⁺(aq)+4H₂O | +1.563 | [58] |
镍 | NiO₂(s)+4H⁺+2e⁻ | ⇌ | Ni²⁺+2OH⁻ | +1.59 | |
氯 | 2HClO(aq)+2H⁺+2e⁻ | ⇌ | Cl₂(g)+2H₂O | +1.63 | |
碘 | IO₄⁻+2H⁺+2e⁻ | ⇌ | IO₃⁻+H₂O | +1.64 | [59] |
银 | Ag₂O₃(s)+6H⁺+4e⁻ | ⇌ | 2Ag⁺+3H₂O | +1.67 | |
氯 | HClO₂(aq)+2H⁺+2e⁻ | ⇌ | HClO(aq)+H₂O | +1.67 | |
铅 | Pb⁴⁺+2e⁻ | ⇌ | Pb²⁺ | +1.69 | [3] |
锰 | MnO₄⁻+4H⁺+3e⁻ | ⇌ | MnO₂(s)+2H₂O | +1.70 | |
银 | AgO(s)+2H⁺+e⁻ | ⇌ | Ag⁺+H₂O | +1.77 | |
氧(过氧) | H₂O₂(aq)+2H⁺+2e⁻ | ⇌ | 2H₂O | +1.776 | |
钴 | Co³⁺+e⁻ | ⇌ | Co²⁺ | +1.82 | |
金 | Au⁺+e⁻ | ⇌ | Au(s) | +1.83 | [3] |
溴 | BrO₄⁻+2H⁺+2e⁻ | ⇌ | BrO₃⁻+H₂O | +1.85 | |
银 | Ag²⁺+e⁻ | ⇌ | Ag⁺ | +1.98 | [3] |
氧(过氧) | S₂O₈²⁻+2e⁻ | ⇌ | 2SO₄²⁻ | +2.07 | |
氧 | O₃(g)+2H⁺+2e⁻ | ⇌ | O₂(g)+H₂O | +2.075 | [8] |
锰 | HMnO₄⁻+3H⁺+2e⁻ | ⇌ | MnO₂(s)+2H₂O | +2.09 | |
氙 | XeO₃(aq)+6H⁺+6e⁻ | ⇌ | Xe(g)+3H₂O | +2.12 | [48] |
氧(氟氧) | OF₂+2H⁺+4e⁻ | ⇌ | 2F⁻+H₂O | +2.153 | [12] |
氙 | H₄XeO₆(aq)+8H⁺+8e⁻ | ⇌ | Xe(g)+6H₂O | +2.18 | [48] |
铁 | FeO₄²⁻+8H⁺+3e⁻ | ⇌ | Fe³⁺+4H₂O | +2.20 | [60] |
氙 | XeF₂(aq)+2H⁺+2e⁻ | ⇌ | Xe(g)+2HF(aq) | +2.32 | [48] |
氙 | H₄XeO₆(aq)+2H⁺+2e⁻ | ⇌ | XeO₃(aq)+H₂O | +2.42 | [48] |
氟 | F₂(g)+2e⁻ | ⇌ | 2F⁻ | +2.87 | [3][10] |
Cm | Cm⁴⁺+e⁻ | ⇌ | Cm³⁺ | +3.0 | [61] |
氟 | F₂(g)+2H⁺+2e⁻ | ⇌ | 2HF(aq) | +3.05 | [3] |
铽 | Tb⁴⁺+e⁻ | ⇌ | Tb³⁺ | +3.05 | [12] |
Pr | Pr⁴⁺+e⁻ | ⇌ | Pr³⁺ | +3.2 | [62] |
氪 | KrF₂(aq)+2e⁻ | ⇌ | Kr(g)+2F⁻(aq) | +3.27 | [63] |
参见
[编辑]参考资料
[编辑]- ^ R.W. Bosch, D.Feron, and J.P. Celis, "Electrochemistry in Light Water Reactors", CRC Press, 2007.
- ^ 2.0 2.1 2.2 2.3 2.4 2.5 Milazzo, G., Caroli, S., and Sharma, V. K. (1978). Tables of Standard Electrode Potentials (Wiley, Chichester).
- ^ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 Bard, A. J., Parsons, R., and Jordan, J. (1985). Standard Potentials in Aqueous Solutions (Marcel Dekker, New York).
- ^ 4.0 4.1 4.2 4.3 Bratsch, S. G. (1989). Journal of Physical Chemistry Reference Data Vol. 18, pp. 1–21. 引用错误:带有name属性“Bra”的
<ref>
标签用不同内容定义了多次 - ^ 5.0 5.1 Vanýsek, Petr (2006). "Electrochemical Series," in Handbook of Chemistry and Physics: 87th Edition (页面存档备份,存于互联网档案馆) (Chemical Rubber Company). 引用错误:带有name属性“Van”的
<ref>
标签用不同内容定义了多次 - ^ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 6.23 6.24 6.25 6.26 6.27 6.28 6.29 6.30 Vanýsek, Petr (2007). “Electrochemical Series” (页面存档备份,存于互联网档案馆), in Handbook of Chemistry and Physics: 88th Edition (页面存档备份,存于互联网档案馆) (Chemical Rubber Company). 引用错误:带有name属性“van88”的
<ref>
标签用不同内容定义了多次 - ^ 7.0 7.1 7.2 7.3 7.4 Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4.
- ^ 8.00 8.01 8.02 8.03 8.04 8.05 8.06 8.07 8.08 8.09 8.10 8.11 Bard, A.J., Faulkner, L.R.(2001). Electrochemical Methods. Fundamentals and Applications, 2nd edition (John Wiley and Sons Inc).
- ^ 9.0 9.1 Marcel Pourbaix (1966). Atlas of Electrochemical Equilibria in Aqueous Solutions (NACE International, Houston, Texas; Cebelcor, Brussels).
- ^ 10.00 10.01 10.02 10.03 10.04 10.05 10.06 10.07 10.08 10.09 10.10 10.11 10.12 10.13 10.14 10.15 Peter Atkins (1997). Physical Chemistry, 6th edition (W.H. Freeman and Company, New York).
- ^ 11.0 11.1 11.2 Ca Sr Ba一价[11]与两价间的标准电极电势正好有规律关系,因此可以估计近似值
- ^ 12.00 12.01 12.02 12.03 12.04 12.05 12.06 12.07 12.08 12.09 12.10 12.11 12.12 12.13 12.14 12.15 12.16 12.17 12.18 12.19 12.20 12.21 12.22 12.23 12.24 12.25 12.26 12.27 12.28 12.29 12.30 12.31 12.32 12.33 12.34 Standard Redox Potential Table. [2012-01-14]. (原始内容存档于2021-02-06).
- ^ 13.00 13.01 13.02 13.03 13.04 13.05 13.06 13.07 13.08 13.09 13.10 13.11 13.12 13.13 13.14 13.15 13.16 13.17 13.18 13.19 13.20 13.21 13.22 13.23 13.24 13.25 13.26 13.27 13.28 13.29 13.30 13.31 13.32 13.33 13.34 13.35 13.36 Lide, David R. (编), CRC Handbook of Chemistry and Physics 87th, Boca Raton, FL: CRC Press, 2006, ISBN 0-8493-0487-3
- ^ Greenwood and Earnshaw, p. 1263
- ^ Standard Redox Potential Table. [2012-01-14]. (原始内容存档于2021-02-06).
- ^ Standard Redox Potential Table. [2012-01-14]. (原始内容存档于2021-02-06).
- ^ Vanýsek, Petr (2007). “Electrochemical Series” (页面存档备份,存于互联网档案馆), in Handbook of Chemistry and Physics: 88th Edition (页面存档备份,存于互联网档案馆) (Chemical Rubber Company).
- ^ 引用错误:没有为名为
van92
的参考文献提供内容 - ^ David R. Lide, ed., CRC Handbook of Chemistry and Physics, Internet Version 2005, http://www.hbcpnetbase.com 互联网档案馆的存档,存档日期2017-07-24., CRC Press, Boca Raton, FL, 2005.
- ^ Lide, David R. (编), CRC Handbook of Chemistry and Physics 87th, Boca Raton, FL: CRC Press, 2006, ISBN 0-8493-0487-3
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