Topics in Current Chemistry (2019) 377:11
1 3
The amount of a given species inside the thin layer cavity, Q (mol/cm
2
), can be
calculated using the ratio of respective integrated band intensities A i , and effective
absorption coefficient ε eff , as:
The values of ε eff for CO 2 , CH 3 COOH, and CH 3 CHO are taken as 3.5 × 10
4
,
5.8 × 10
3
, and 2.2 × 10
3
M
−1
cm
−2
, respectively [90]. Because the production of one
molecule of CO 2 , CH 3 COOH, and CH 3 CHO releases six, four, and two electrons,
respectively, the total oxidation efficiency, C CO 2 ∕C CO 2 +CH 3 COOH+CH 3 CHO , is calculated as:
(5)
Q =
A i
eff
.
(6)
C CO 2
C CO 2 + C CH 3 COOH + C CH 3 CHO
=
6 ∗ Q CO 2
6 ∗ Q CO 2 + 4 ∗ Q CH 3 COOH + 2 ∗ Q CH 3 CHO
.
Fig. 6 In situ IRRAS spectra from four Pt–Rh–SnO 2 /C nanocatalysts with different composition.
Reprinted with Ref. [31] with permission from American Chemical Society
Reprinted from the journal
14
1 3
The amount of a given species inside the thin layer cavity, Q (mol/cm
2
), can be
calculated using the ratio of respective integrated band intensities A i , and effective
absorption coefficient ε eff , as:
The values of ε eff for CO 2 , CH 3 COOH, and CH 3 CHO are taken as 3.5 × 10
4
,
5.8 × 10
3
, and 2.2 × 10
3
M
−1
cm
−2
, respectively [90]. Because the production of one
molecule of CO 2 , CH 3 COOH, and CH 3 CHO releases six, four, and two electrons,
respectively, the total oxidation efficiency, C CO 2 ∕C CO 2 +CH 3 COOH+CH 3 CHO , is calculated as:
(5)
Q =
A i
eff
.
(6)
C CO 2
C CO 2 + C CH 3 COOH + C CH 3 CHO
=
6 ∗ Q CO 2
6 ∗ Q CO 2 + 4 ∗ Q CH 3 COOH + 2 ∗ Q CH 3 CHO
.
Fig. 6 In situ IRRAS spectra from four Pt–Rh–SnO 2 /C nanocatalysts with different composition.
Reprinted with Ref. [31] with permission from American Chemical Society
Reprinted from the journal
14