Table 1 Selective hydrogenation of HMF over Pt1/Nb2O5-Ov catalysts[a].

From: Selective hydrogenation of 5-(hydroxymethyl)furfural to 5-methylfurfural over single atomic metals anchored on Nb2O5

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Entry

Catalyst

Conversion (%)

Selectivityc (%)

TOF/hb

1

2

3

4

1

–

–

–

–

–

–

0

2

Pt1/Nb2O5-Ov

>99

>99

–

No

–

1875

3d

Pt1/Nb2O5-Ov

92

>99

–

No

–

1742

4e

Pt1/Nb2O5-Ov

86

>99

–

No

–

1628

5f

Pt1/Nb2O5-Ov

71

>99

–

No

–

1344

6g

Pt1/Nb2O5-Ov

35

>99

–

No

–

656

  1. aReaction conditions: HMF (0.3 mmol), catalyst (20 mg), solvent (THF 2 mL), reaction temperature (160 °C), H2 pressure (4.0 MPa), reaction time (4 h), stirring speed (600 rpm).
  2. bTOF = moles of product × moles of metal−1 × h−1.
  3. cThe selectivity was calculated based on the product detected by gas chromatography.
  4. dReaction temperature (160 °C), H2 pressure (2.0 MPa).
  5. eReaction temperature (160 °C), H2 pressure (1.0 MPa).
  6. fReaction temperature (140 °C), H2 pressure (4.0 MPa).
  7. gReaction temperature (120 °C), H2 pressure (4.0 MPa).
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