Topics in Current Chemistry (2018) 376:41
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Table 2
Bimetallic electrocatalysts for CO
2 reduction to hydrocarbons
Catalysts
Electrolyte
Selectivity @ potential
Partial current density @ potential
References
CuPd (phase separated)
1 M KOH
C
2 H
4 : 48% @− 0.74 V; C
2 H
5 OH: 15%@− 0.74 V C
2 H
4 : 173 mA/cm
2
; C
2 H
5 OH: 54 mA/cm
2
@− 0.74 V; [47]
Ag@Cu-20
0.1 M KHCO
3
C
2 H
4 : 23%; CH
4 : 18%; @− 1.06 V
C
2 H
4 : 1.1 mA/cm
2
; CH
4 : 0.4 mA/cm
2
; @− 1.06 V
[22]
Ag–Co
0.5 M KHCO
3
CH
4 : 19.5% @2.0 V
N/A
[48]
CuAg (40%Cu)
0.05 M Cs
2 CO
3
C
2 H
4 : 20.2%, CH
4 : 5%, @− 1.05 V
C
2 H
4 : 1.58 mA/cm
2
, CH
4 : 0.39 mA/cm
2
, @− 1.05 V
[49]
Au@Cu1 (6–7 Cu layers) 94 mL of 1 M
K
2 HPO
4 + 6 mL
of 1 M KH
2 PO
4
18% C
2 H
4 and 5% CH
4 in total gases @− 0.6 V
N/A
[50]
Cu–Ag (porous Cu)
0.1 M KHCO
3
C
2 H
6 + C
2 H
4 : 14%, @− 0.74 V
C
2 H
6 + C
2 H
4 : 1.5 mA/cm
2
; @− 0.74 V
[51]
Cu
2 Pd
0.1 M TBAPF
6 /
CH
3 CN with
1 M
H
2 O
CH
4 : 50%; @− 1.8 V vs Ag/AgCl
CH
4 : 1.88 mA/cm
2
; @− 1.8 V vs Ag/AgCl
[52]
Cu
94 Ag
6
1 M KOH
C
2 H
4 : 60%; C
2 H
5 OH: 25% @− 0.7 V
C
2 H
4 : 180 mA/cm
2
, C
2 H
5 OH: 75 mA/cm
2
, @− 0.7 V [53]
Reprinted from the journal
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