Chinese Journal of Catalysis ›› 2024, Vol. 66: 53-75.DOI: 10.1016/S1872-2067(24)60126-9
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Long Songa, Jingqi Chia,*(), Junheng Tanga, Xiaobin Liua,c, Zhenyu Xiaoa,b, Zexing Wua,b, Lei Wanga,b,*(
)
Received:
2024-07-10
Accepted:
2024-08-28
Online:
2024-11-18
Published:
2024-11-10
Contact:
*E-mail: About author:
Jingqi Chi received her B.S. degree and Ph.D. degree from the State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China). She is currently an associate professor at Qing dao University of Science and Technology. Her research interests focus on the design and synthesis of transition metal-based nanostructures and porous MOFs materials for electrochemical applications.Supported by:
Long Song, Jingqi Chi, Junheng Tang, Xiaobin Liu, Zhenyu Xiao, Zexing Wu, Lei Wang. Anode design principles for efficient seawater electrolysis and inhibition of chloride oxidation[J]. Chinese Journal of Catalysis, 2024, 66: 53-75.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(24)60126-9
Fig. 3. (a) Volcano curve of CER (gray) and OER (black) in RuO2 (110). The length of the line (dashed line) corresponds to the result of standard deviation in linear scaling relation [37]. Reprinted with permission from Ref. [37]. Copyright 2014, John Wiley and Sons. (b) Schematic illustration of selective oxidation mechanism at the edge of clusters. (c) Dem tests of CoPi (left) and NiBi (right) films [38]. Reprinted with permission from Ref. [38]. Copyright 2019, American Chemical Society. (d) d-Band center comparison of Co 3d orbit. (e) Schematic illustration of synergistic effect between multiphase interfaces caused by Ru and Co [39]. Reprinted with permission from Ref. [39]. Copyright 2023, American Chemical Society. (f) OOH* coverage intensity changes with voltage. (g) Schematic illustration of chloride resistance and OER mechanism in alkaline seawater [40]. Reprinted with permission from Ref. [40]. Copyright 2023, John Wiley and Sons.
Doping sites of RuO2 | ηOER (eV) | ηCER (eV) |
---|---|---|
Pure RuO2 | 0.48 (HOO∗) | 0.36 (ClO∗) |
Cu-doped RuO2 (cus) | 1.11 (O∗) | 0.50 (Cl∗) |
Cu-doped RuO2 (br) | 0.32 (HOO∗) | 0.05 (Cl∗) |
Cu-doped RuO2 (ss1) | 0.55 (HOO∗) | 0.40 (ClO∗) |
Cu-doped RuO2 (ss2) | 0.50 (HOO∗) | 0.33 (ClO∗) |
Table 1 The theoretical overpotentials of OER (ηOER) and CER (ηCER) at different doping sites of RuO2 (110) (Through CET pathway) [41]. Reprinted with permission from Ref. [41]. Copyright 2018, The Electrochemical Society.
Doping sites of RuO2 | ηOER (eV) | ηCER (eV) |
---|---|---|
Pure RuO2 | 0.48 (HOO∗) | 0.36 (ClO∗) |
Cu-doped RuO2 (cus) | 1.11 (O∗) | 0.50 (Cl∗) |
Cu-doped RuO2 (br) | 0.32 (HOO∗) | 0.05 (Cl∗) |
Cu-doped RuO2 (ss1) | 0.55 (HOO∗) | 0.40 (ClO∗) |
Cu-doped RuO2 (ss2) | 0.50 (HOO∗) | 0.33 (ClO∗) |
Fig. 5. (a) The calculated adsorption energy of Cl* intermediate [45]. Reprinted with permission from Ref. [45]. Copyright 2023, American Chemical Society. Site-dependent PDOSs of (b) Co-3d and (c) P-3p [46]. Reprinted with permission from Ref. [46]. Copyright 2023, John Wiley and Sons. (d) Bader charge diagrams of symmetric Co-N4 and asymmetric Co-N3P1 models [47]. Reprinted with permission from Ref. [47]. Copyright 2022, John Wiley and Sons. (e) In-situ Raman spectra of Ni2P and CoFe-Ni2P. (f) The adsorption energy of Cl* and OH* on Ni sites of different catalysts [48]. Reprinted with permission from Ref. [48]. Copyright 2023, John Wiley and Sons. (g) Ni-O-Fe on heterogeneous interface composed of Ni-BDC/NM88B (Fe) [49]. Reprinted with permission from Ref. [49]. Copyright 2024, John Wiley and Sons. (h) Schematic illustration of lattice Cl induced repulsion mechanism in seawater. (i) The OER Faradaic efficiency of Co(OH)2 and Co2(OH)3Cl in 1.0 mol L-1 KOH + 0.6 mol L-1 NaCl electrolyte (1.83 V) [12]. Reprinted with permission from Ref. [12]. Copyright 2022, John Wiley and Sons.
Fig. 6. Schematic illustration of oxide-anion double-layer chloride repellent strategy (a) and corresponding formation mechanism in seawater (b) [52]. Reprinted with permission from Ref. [52]. Copyright 2024, Elsevier. (c) Reaction mechanism of NiFeOOH-TCNQ and NiFeOOH-S-TCNQ [53]. Reprinted with permission from Ref. [53]. Copyright 2023, John Wiley and Sons. (d) Schematic illustration of indirect chloride repulsion mechanism of Lewis acid layer. (The orange arrow represents the direction of external electric field (E). (e) Measured OH- concentration and theoretical concentration of excess OH- required to resist Cl-. (f) XPS spectra of Cl 2p after stability tests. (g) OER polarization curve of as-prepared catalysts in natural seawater [54]. Reprinted with permission from Ref. [54]. Copyright 2023, Springer Nature.
Fig. 8. (a) Schematic illustration of complex diffusion and Cl- migration of anode feed in AEM electrolyzers. (b) Corresponding durability test and Faradaic Efficiency [58]. Reprinted with permission from Ref. [58]. Copyright 2023, American Chemical Society. (c) Chloride repellent design of asymmetric electrolyzers with sodium ion exchange membrane and (d) Corresponding chronopotentiometric curve at 100 mA cm-2 (Inset is the photo after adding AgNO3 solution) [59]. Reprinted with permission from Ref. [59]. Copyright 2023, Springer Nature. (e) Purification and migration process of water [63]. Reprinted with permission from Ref. [63]. Copyright 2022, Springer Nature.
Fig. 10. (a) LSV curves of OER and SMOR in the water splitting [64]. Reprinted with permission from Ref. [64]. Copyright 2022, John Wiley and Sons. (b) Schematic illustration of electrochemical degradation of UOR in urea wastewater [67]. Reprinted with permission from Ref. [67]. Copyright 2020, American Chemical Society. (c) Schematic illustration of platinum wrapped in several layers of graphene. (d) The composition of the oxidation product fraction of glycerol during electrolysis with Pt-in-VGCC as the working electrode. (60 °C) [68]. Reprinted with permission from Ref. [68]. Copyright 2019, John Wiley and Sons. LSV curves of the MOR-assisted seawater electrolysis (e) and corresponding chronopotentiometric curves at 10 mA cm-2 in alkaline natural seawater (f) [69]. Reprinted with permission from Ref. [69]. Copyright 2014, John Wiley and Sons.
Fig. 12. (a) The Pourbaix diagram for simulated seawater electrolytes. (b) Prediction of the maximum allowable overpotential without side reaction (CER) during OER in seawater [73]. Reprinted with permission from Ref. [73]. Copyright 2016, John Wiley and Sons. (c) Faradaic efficiency of 60Fe/NF (The illustration shows the synthesis process of 60Fe/NF) [76]. Reprinted with permission from Ref. [76]. Copyright 2023, John Wiley and Sons. (d) Overpotentials for the COR and OER on EMD-400 at current density of 10 mA cm-2. FEs of COR calculated based on ClO- in electrolyte after electrolysis for IrO2 (e) and EMD-400 (f) [77]. Reprinted with permission from Ref. [77]. Copyright 2023, The Electrochemical Society. (g) Polarization curves of NCFPO/C@CC in alkaline seawater. (h) The concentration of active chloride changes in NaCl and NaCl + KOH electrolyte with NCFPO/C@CC as anode (Inset: the color change of solution after adding KI) [29]. Reprinted with permission from Ref. [29]. Copyright 2019, American Chemical Society.
Fig. 13. (a) Schematic illustration of oxyacid radical protecting metal substrate from Cl- corrosion [80]. Reprinted with permission from Ref. [80]. Copyright 2021, John Wiley and Sons. (b) Inductively coupled plasma optical emission spectra of phosphorus dissolved after different cycles [82]. Reprinted with permission from Ref. [82]. Copyright 2021, John Wiley and Sons. (c) Schematic illustration of chloride resistance effect of MoO42- [85]. Reprinted with permission from Ref. [85]. Copyright 2023, Springer Nature. (d) Schematic illustration of reducing Cl- adsorption and (e) TOF-SIMS depth profiles of Cl- by weakening ion concentration exchange process in seawater [84]. Reprinted with permission from Ref. [84]. Copyright 2024, Springer Nature. Schematic illustration of chloride repulsion mechanism realized by surface chloride immobilization (SCI) strategy (f) and the surface model according to the dynamic simulation and experimental results (g). Polarization curves (h) and durability tests (i) of NiFe LDH@Ag in alkaline saline electrolyte and alkaline seawater, respectively [89]. Reprinted with permission from Ref. [89]. Copyright 2024, John Wiley and Sons.
Electrocatalyst | Overpotential [η(mA cm-2)] (η100) | Ref. |
---|---|---|
HCl-c-Ni-Fe | 240 mV | [ |
Ni-Fe LDH | 247 mV | [ |
S-(Ni-Fe) OOH | 300 mV | [ |
Ag/Ni-Fe LDH | 303 mV | [ |
NiFe-LDH@FeNi2S4 | 250 mV | [ |
NiIr LDH | 286 mV | [ |
Ni-Fe-Al-Co LDHs | 220 mV | [ |
SNiMoO4@NiFe-LDH/NF | 315 mV | [ |
Co-Fe LDHs/Pt | 300 mV | [ |
CoFeNi-LDH | 282 mV | [ |
MnOx/NiFe-LDH/NF | 276 mV | [ |
CrO42--NiFe LDH/Cr2O3/NF | 310 mV | [ |
Ce-NiFe LDH/NF | 270 mV | [ |
2D/1D NiV-BLDH/NiCoP/NF | 280 mV | [ |
N-CDs/NiFe-LDH/NF | 340 mV | [ |
NiCo@NiFe LDH | 222 mV | [ |
B-Co2Fe LDH | 310 mV | [ |
Li-NiFe-LDH | 319 mV | [ |
Ag/NiFeRu LDH | 220 mV | [ |
CoP@NiFe LDH/NF | 245 mV | [ |
Ru/Mn-NiFe LDH | 210 mV | [ |
Table 2 Performance comparison of LDH and its derivatives.
Electrocatalyst | Overpotential [η(mA cm-2)] (η100) | Ref. |
---|---|---|
HCl-c-Ni-Fe | 240 mV | [ |
Ni-Fe LDH | 247 mV | [ |
S-(Ni-Fe) OOH | 300 mV | [ |
Ag/Ni-Fe LDH | 303 mV | [ |
NiFe-LDH@FeNi2S4 | 250 mV | [ |
NiIr LDH | 286 mV | [ |
Ni-Fe-Al-Co LDHs | 220 mV | [ |
SNiMoO4@NiFe-LDH/NF | 315 mV | [ |
Co-Fe LDHs/Pt | 300 mV | [ |
CoFeNi-LDH | 282 mV | [ |
MnOx/NiFe-LDH/NF | 276 mV | [ |
CrO42--NiFe LDH/Cr2O3/NF | 310 mV | [ |
Ce-NiFe LDH/NF | 270 mV | [ |
2D/1D NiV-BLDH/NiCoP/NF | 280 mV | [ |
N-CDs/NiFe-LDH/NF | 340 mV | [ |
NiCo@NiFe LDH | 222 mV | [ |
B-Co2Fe LDH | 310 mV | [ |
Li-NiFe-LDH | 319 mV | [ |
Ag/NiFeRu LDH | 220 mV | [ |
CoP@NiFe LDH/NF | 245 mV | [ |
Ru/Mn-NiFe LDH | 210 mV | [ |
Fig. 14. (a) The OER activity, stability, and solubility of RuO2, IrO2, Ru and Ir [116]. Reprinted with permission from Ref. [116]. Copyright 2020, John Wiley and Sons. (b) Simplified Pourbaix diagram of Mn in aqueous solution [117]. Reprinted with permission from Ref. [117]. Copyright 2012, Royal Society of Chemistry. (c) Ratio of adsorption energies of HOO* and HO* intermediates on various oxides (HOO* and HO* adsorption energy scalar relationship) [122]. Reprinted with permission from Ref. [122]. Copyright 2021, John Wiley and Sons. Schematic diagram of the concurring effects (d), LSV curves (e) and Tafel plots (f) of MnO2- and Mn2O3-based electrodes in alkaline seawater [123]. Reprinted with permission from Ref. [123]. Copyright 2021, Elsevier. (g) Chronoamperometry curves (10 and 100 mA cm-2) [125]. Reprinted with permission from Ref. [125]. Copyright 2019, John Wiley and Sons.
Fig. 15. (a) Schematic diagram of highly selective oxidation of seawater by MoO3@CoO/CC, and (b) the formation energy of chloride on the corresponding surface [132]. Reprinted with permission from Ref. [132]. Copyright 2024, Springer Nature. (c) High-resolution XPS of Co 2p among different thickness of Co3O4. (d) HER polarization curves of Cr2O3-CoOx and comparison samples in natural seawater. Measured pH values (e), the theoretical concentration of excess OH- required to resist Cl- (f) and XRD after operating at 100?mA?cm-2 for 2 h of CoOx and Cr2O3-CoOx anode (g) [54]. Reprinted with permission from Ref. [54]. Copyright 2023, Springer Nature. ?(h) Pourbaix plots of Fe in solutions with different concentrations of Fe ions at 25 °C (1 × 10-8, 1 × 10-5, 1 × 10-2, and 10 mol) [122]. Reprinted with permission from Ref. [122]. Copyright 2021, John Wiley and Sons. (i) DOS of Fe3O4, Fe OOH/Fe3O4, and Fe(Cr)OOH/Fe3O4 [92]. Reprinted with permission from Ref. [92]. Copyright 2022, Elsevier. D-band center values (j) and free energy (k) of Cl- adsorption on Ru/P-Fe3O4@IF, P-Fe3O4@IF and Fe3O4@IF [137]. Reprinted with permission from Ref. [137]. Copyright 2024, American Chemical Society.
Fig. 16. Schematic illustration of the AEM (a) and LOM (b). (c) Free energy profiles between AEM and LOM. (d) Schematic band diagrams of RP-Sr75 [149]. Reproduced from Ref. [149] with permission from Wiley, Copyright 2023. (e) Free energy profiles of NiFeP-O/NiOOH and NiOOH [171]. Reproduced from Ref. [171] with permission from Royal Society of Chemistry, Copyright 2023. The Bader charge numbers of atoms in Ni2Pv (f), Fe-Ni2P (g), and Fe-Ni2Pv (h). (i) PDOS of Ni 3d. (j) Schematic diagram of Ni2Pv adsorbing OER intermediate to form (Fe)NiOOH/Ni2Pv. In situ Raman spectroscopy measurements of Fe-Ni2Pv (k) and Ni2P (l) toward OER in 1.0 mol L-1 KOH seawater [174]. Reproduced from Ref. [174] with permission from Wiley, Copyright 2023.
Electrocatalyst | Substrate | Overpotential [η(mA cm-2)] (η10) | Ref. |
---|---|---|---|
CoFe2O4 | NF | 200 mV | [ |
CoNiWFeVOx | CC | 270 mV | [ |
NiCo2O4 | CC | 293 mV | [ |
Ru-CoOx/NF | NF | 220 mV | [ |
1D-Cu@Co-CoO/Rh | 1D-Cu | 200 mV | [ |
Mn0.25Ni0.75O | NF | 266 mV | [ |
RuO2@CC | CC | 600 mV | [ |
NiMoFe/NM | NM | 340 mV | [ |
Co/P-Fe3O4@IF | IF | 250 mV | [ |
RuNi‐Fe2O3/IF | IF | 580 mV | [ |
PtOx-NiOn/NF | NF | 390 mV | [ |
Fe0.01&Mo-NiO | NiO | 308 mV | [ |
NixCryO | CP | 370 mV | [ |
Cu2O-CoO/CF | CF | 286 mV | [ |
FNE300 | NF | 231 mV | [ |
Fe1/Mn NiO | NiO | 290 mV | [ |
(FeNiMo)O2/NF | NF | 250 mV | [ |
Ir1/Ni1.6Mn1.4O4 | — | 330 mV | [ |
(NiFe)C2O4/NF | NF | 320 mV | [ |
Table 3 Performance comparison of multi-metal oxide electrocatalysts.
Electrocatalyst | Substrate | Overpotential [η(mA cm-2)] (η10) | Ref. |
---|---|---|---|
CoFe2O4 | NF | 200 mV | [ |
CoNiWFeVOx | CC | 270 mV | [ |
NiCo2O4 | CC | 293 mV | [ |
Ru-CoOx/NF | NF | 220 mV | [ |
1D-Cu@Co-CoO/Rh | 1D-Cu | 200 mV | [ |
Mn0.25Ni0.75O | NF | 266 mV | [ |
RuO2@CC | CC | 600 mV | [ |
NiMoFe/NM | NM | 340 mV | [ |
Co/P-Fe3O4@IF | IF | 250 mV | [ |
RuNi‐Fe2O3/IF | IF | 580 mV | [ |
PtOx-NiOn/NF | NF | 390 mV | [ |
Fe0.01&Mo-NiO | NiO | 308 mV | [ |
NixCryO | CP | 370 mV | [ |
Cu2O-CoO/CF | CF | 286 mV | [ |
FNE300 | NF | 231 mV | [ |
Fe1/Mn NiO | NiO | 290 mV | [ |
(FeNiMo)O2/NF | NF | 250 mV | [ |
Ir1/Ni1.6Mn1.4O4 | — | 330 mV | [ |
(NiFe)C2O4/NF | NF | 320 mV | [ |
Electrocatalyst | Substrate | Overpotential [η (mA cm-2)] (η100) | Ref. | |
---|---|---|---|---|
cRu-X’Ni3N | NF | 477 mV | [ | |
Au-Gd-Co2B@TiO2 | TiO2 NS | 78 mV | [ | |
NixFeyN@C/NF | NF | 95 mV | [ | |
S,P-(Ni,Mo,Fe)OOH/Ni Mo P | wood aerogel | 185 mV | [ | |
NiSA-NiPi/MoS2 NSs | TiO2 NS | 320 mV | [ | |
NiMoN@NiFeN | NF | 286 mV | [ | |
NC-Ni3Nm/Fe3Nm | NF | 365 mV | [ | |
Co-N,P-HCS | HCS | 206 mV | [ | |
MIL-(IrNiFe)@NF | NF | 79 mV | [ | |
Ni(OH)2/L-LFP | L-LFP | 237 mV | [ | |
NiRu-PTA/NF | NF | 350 mV | [ | |
Ru@CoNi-MOF | NF | 480 mV | [ | |
ZnFe-BDC-0.75 | NF | 308 mV | [ | |
MoC-Mo2C/CNTs | CNTs | 370 mV | [ | |
Ni-BDC/NM88B(Fe) | NF | 295 mV | [ | |
Fe-Ni-O-N | IF | 250 mV | [ | |
NC-Ni3Nm/Fe3Nm | NF | 581 mV | [ | |
RuO2-Ti3C2/NF | NF | 378 mV | [ | |
ZIF67-600Ar | GF | 670 mV | [ |
Table 4 OER performance comparison of electrocatalysts.
Electrocatalyst | Substrate | Overpotential [η (mA cm-2)] (η100) | Ref. | |
---|---|---|---|---|
cRu-X’Ni3N | NF | 477 mV | [ | |
Au-Gd-Co2B@TiO2 | TiO2 NS | 78 mV | [ | |
NixFeyN@C/NF | NF | 95 mV | [ | |
S,P-(Ni,Mo,Fe)OOH/Ni Mo P | wood aerogel | 185 mV | [ | |
NiSA-NiPi/MoS2 NSs | TiO2 NS | 320 mV | [ | |
NiMoN@NiFeN | NF | 286 mV | [ | |
NC-Ni3Nm/Fe3Nm | NF | 365 mV | [ | |
Co-N,P-HCS | HCS | 206 mV | [ | |
MIL-(IrNiFe)@NF | NF | 79 mV | [ | |
Ni(OH)2/L-LFP | L-LFP | 237 mV | [ | |
NiRu-PTA/NF | NF | 350 mV | [ | |
Ru@CoNi-MOF | NF | 480 mV | [ | |
ZnFe-BDC-0.75 | NF | 308 mV | [ | |
MoC-Mo2C/CNTs | CNTs | 370 mV | [ | |
Ni-BDC/NM88B(Fe) | NF | 295 mV | [ | |
Fe-Ni-O-N | IF | 250 mV | [ | |
NC-Ni3Nm/Fe3Nm | NF | 581 mV | [ | |
RuO2-Ti3C2/NF | NF | 378 mV | [ | |
ZIF67-600Ar | GF | 670 mV | [ |
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[1] | Xiaoliang Li, Hao Xu, Wei Yan. Electrochemical oxidation of aniline by a novel Ti/TiOxHy/Sb-SnO2 electrode [J]. Chinese Journal of Catalysis, 2016, 37(11): 1860-1870. |
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