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) with their peak at m/e 511. The species (c) further degrades with the subsequent loss of –C 4 H 3 species forming species (d) with their peak at m/e 460. The species (d) further degrades with the subsequent loss of –C 3 H 6 species forming species
Waste and fuels from waste
Part I. Analysis of thermal decomposition
4 , H 2 O, CO, CO 2 , C 2 H 6 , C 2 H 4 , C 2 H 2 ), the combination of nitrogen in the form of NH 3 and HCN are also given. These compounds are of importance in the organization of thermal destruction processes of the fuel, because they participate
Biofuels
Part II. Thermogravimetric research of dry decomposition
hydrogen elements (H 2 , CH 4 , H 2 O, CO, CO 2 , C 2 H 6 m / z = 30; C 2 H 4 m / z = 28; C 2 H 2 m / z = 26), the linkings of nitrogen in the form of NH 3 ( m / z = 17) and HCN ( m / z = 27) were also given. These compounds are of importance in the
O (18 Da) between the 2″-hydroxyl group of the sugar and the 5 or 7-hydroxyl group of the aglycone. The fragment ions at m / z 357.0694 ( 0,3 X 0 − ), m / z 327.0585 ( 0,2 X 0 − ), and m / z 297.0468 ( 0,1 X 0 − ) indicate the losses of C 3 H 6
550–650 °C and only for samples milled in air (containing V 2 MoO 8 phase) reaches up to 40%. Meantime, propylene, CO, and CO 2 are the main reaction products at low temperature. Temperature dependence of selectivity to propylene S C3H6 is rather
, Nd, Pr) and B is Ni, Co, Mn, and/or Al. Note that LaNi 5 H 6 , which is commonly used in batteries, stores only a maximum of 1.4 wt% of H. Another disadvantage of these materials for hydrogen storage is that lanthanides tend to be expensive and heavy
Hepta isobutyl polyhedral oligomeric silsesquioxanes (hib-POSS)
A thermal degradation study
NMR: 7.58 (d, 2H), 6.90 (d, 2H), 3.82 (s, 3H), 1.87 (m, 7H), 0.97 (m, 42 H), 0.64 (m, 14H). Anal. Calcd for C 35 H 70 Si 8 O 13 : C 45.55, H 7.64. Found: C 45.31, H 7.71. Compound 4 Yield 80.5%. 1 H NMR: 7
.7 Hz); H 5 = 6.78 (s, 2H); H 6 = 3.76 (t, 2H, J = 4.9 Hz); H 7 = 3.75 (t, 2H, J = 6.3 Hz); H 8 = 3.44 (s, 4H); H 9 = 3.33 (s, 4H); H 10 = 3.21 (t, 2H, J = 5.3 Hz); H 11 = 3.17 (t, 2H, J = 7.7 Hz); H 12 = 1.83 (q, 2H, J = 7.7 Hz). 13 C
the cavitand cucurbit[8]uril (C 6 H 6 N 4 O 2 ) 8 with the included coordination compounds of transition metals with amines are sufficiently stable. Although simple coordination compounds such as [Co(en) 2 Cl 2 ]Cl, [Ni(en) 2 Cl 2 ], [Cu(en) 2 (H 2 O
pressure. The gas mixture contained 5 vol% C 4 H 6 (Aldrich, 99+%), 5 vol% O 2 and 90 vol% He and was fed from a gas cylinder by a mass-flow controller. 100 mg of catalyst diluted with quartz sand of the same mesh size was placed in the reactor
