Table 2.

Formic acid dehydrogenation in BMIM OAc using metal precursor, Ru-1, or Ru-2 as catalyst.^a.

Entry	Catalyst	T [°C]	Conversion [%]b					TOFoverallc [h−1]	TOFmaxd [h−1] (time interval [min])
			10 min	30 min	60 min	120 min	180 min
1	Precursor	90	56	78	87	94	97	330	3424 (0–10)
2	Precursor	80	24	51	72	84	91	309	1467 (0–10)
3	Precursor	70	18	43	65	81	88	299	1101 (0–10)
4	Precursor	60	6	29	40	59	65	221	703 (10–30)
5	Ru-1	90	74	90	93	96	98	333	4525 (0–10)
6	Ru-1	80	14	79	87	92	96	326	1988 (10–30)
7	Ru-1	70	23	73	85	90	93	315	1529 (10–30)
7	Ru-1	60	0	0	12	79	83	281	682 (60–120)
9	Ru-2	90	60	89	99	-	-	1009	3669 (0–10)
10	Ru-2	80	24	76	83	92	96	326	1590 (10–30)
11	Ru-2	70	0	42	80	86	86	292	1284 (10–30)
12	Ru-2	60	0	9	31	78	79	268	479 (60–120)

^a Conditions: 13 µmol catalyst, 0.5 mL (13.25 mmol) formic acid, 1.0 mL (5.35 mmol) BMIM OAc

^b Determined by NMR using BMIM OAc as internal reference

^c Average over entire experiment time

^d Maximum observed TOF between two measurements