Table 1 Substrate scoping investigations.

From: Alcohols electrooxidation coupled with H2 production at high current densities promoted by a cooperative catalyst

Entry

Reactant

Au vs. Au/CoOOH

Charge transfer (C cm−2 h−1)

Production rate (mmol cm−2 h−1)

FE (%)

aldehyde/ketones

acid

aldehyde/ketones

acid

1

201.4/1463

0.21/0.91

0.41/3.27

21/12

77/86

2

99.4/1207.2

0.034/0.44

0.24/2.86

7/5

91/93

3

85.3/1020.1

0.12/0.86

0.12/1.81

56/16

27/69

4

178.1/1148.2

0.59/2.70

0.12/1.30

63/45

26/44

5

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63.82/638.1

0.029/0.085

0.15/1.58

9/3

90/96

6

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131.4/891.7

0.56/3.23

0.055/0.61

82/70

16/26

7

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8.8/110.2

0.00/0.00

0.022/0.29

0/0

96/99

8

102.6/967.8

0.53/5.01

0/0

99/99

0/0

9

73.1/651.9

0.016/0.52

0.18/1.45

4/15

94/84

10

17.8/255.5

0.00/0.00

0.049/0.71

0/0

85/85a

11

36.4/322.9

0.00/0.00

0.10/0.90

0/0

98/98b

12

3.5/253.2

0.00/0.00

0.011/0.77

0/0

97/96c

13

86.7/406.2

0.00/0.00

0.33/1.38

0/0

92/91d

  1. Comparison of the catalytic performance of electrooxidation of benzyl alcohol derivatives and alcohols with vicinal C=C, C=O and ‒OH groups over Au and Au/CoOOH catalysts.
  2. Note. Entries 1–8 were reacted in 1 M KOH with 0.1 M reactant at 60 °C, among them, the products for Entries 1–7 are aldehyde and acid, Entries 8 is acetophenone only. Entries 9–13 were reacted in 1 M KOH with 0.3 M reactant at r.t.
  3. aThe total acid products of hydroxyacetone, including pyruvic acid (59%/58%), acetic acid (5%/6%) and formic acid (21%/21%).
  4. bThe total acid products of ethylene glycol, including glycolic acid (65%/68%) and formic acid (33%/30%).
  5. cThe total acid products of 1,2-propanediol, including lactic acid (26%/29%), acetic acid (26%/28%) and formic acid (45%/39%).
  6. dThe total acid products of glycerol, including glyceric acid (24%/20%), lactic acid (2.0%/11%), glycolic acid (35%/26%) and formic acid (31%/34%).
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