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##### Cited by 57 publications
(18 citation statements)
##### References 10 publications
(18 reference statements)
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“…Shelef and Gandhi (1972) reported that the selectivity for NH3 formation over ruthenium reached a maximum of 35% at 220 "C and declined to 10% at 400 O C . Klimisch and Taylor (1973) also found low NH3 selectivity with ruthenium, but selectivity differed for reduced and oxygen-treated catalysts. Since ruthenium is a good catalyst for NH3 decomposition, these authors suggested that the low NH3 selectivity at high temperatures might be attributed to NH3 decomposition, with reduction of NO to N2 proceeding through a gas-phase 0019-7890/78/1217-0322$01,00/0 NH3 intermediate.…” Section: Introductionmentioning confidence: 91% See 1 more Smart Citation “…Shelef and Gandhi (1972) reported that the selectivity for NH3 formation over ruthenium reached a maximum of 35% at 220 "C and declined to 10% at 400 O C . Klimisch and Taylor (1973) also found low NH3 selectivity with ruthenium, but selectivity differed for reduced and oxygen-treated catalysts. Since ruthenium is a good catalyst for NH3 decomposition, these authors suggested that the low NH3 selectivity at high temperatures might be attributed to NH3 decomposition, with reduction of NO to N2 proceeding through a gas-phase 0019-7890/78/1217-0322$01,00/0 NH3 intermediate.…”
Section: Introductionmentioning
confidence: 91%
“…The importance of catalyst history and of adhering to a strict experimental procedure is underscored by the "dual state" nature of ruthenium catalysts (Voorhoeve and Trimble, 1975;Klimisch and Taylor, 1973). Each charge was exposed to flowing hydrogen at 375 "C for 12 h before making kinetic tests, and between runs the reactor was swept with 2.5% H2 in N2.…”
Section: Apparatus and Proceduresmentioning
confidence: 99%
“…It is favored not only for its high activity but also because under exhaust conditions it has been shown to be more selective to the formation of Ng over ammonia (2)(3)(4)(5)(6)(7)(8) than platinum or rhodium.…”
Section: Kinetic Procedures 4lmentioning
confidence: 99%
“…Since the NH3 formed is thermodynamically unstable at 540°C, it would be expected to decompose readily on a suitable catalyst. Nickel has been reported to have such activity (Klimisch and Taylor, 1973). A run was made in the 9.5-mm reactor in which the bed consisted of two sections.…”
Section: Ni and Cu Cotalystsmentioning
confidence: 99%