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Microbial Ecology of the Dark Ocean above at and below ...

Microbial Ecology of the Dark Ocean above at and below ...

Anammox may account for 25 to 30% of the removal of fixed nitrogen from marine systems, representing a globally important fixed N sink . Other electron donors. Although less well studied, other electron donors in the dark ocean include methylated compounds (such as methanol, methylamines, and methyl sulfides such as methanethiol and ...

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Hollow carbon sphere encapsulated nickel nanoreactor for ...

Hollow carbon sphere encapsulated nickel nanoreactor for ...

As green chemistry, aqueous-phase reactions play a vital role in modern fine chemical synthesis. Herein, an encapsulated nickel in a hollow carbon sphere ([email protected]) catalyst was constructed to effectively catalyze an aqueous-phase hydrogenation-rearrangement tandem (AP-HRT) reaction, in which water was employed as the solvent and reactant simultaneously.

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Emerging applications of zeolites in catalysis separation ...

Emerging applications of zeolites in catalysis separation ...

Aug 24, 2021 During the hydrothermal synthesis, Ni ii species formed in situ and isolated Ni ii sites were confined within the 6-rings of faujasite. Alkynes bind to the open Ni ii …

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Surfactant-assisted preparation of Mo-Co-K sulfide ...

Surfactant-assisted preparation of Mo-Co-K sulfide ...

Figure 1 shows wide-angle XRD patterns of MoCo 0.9 K 0.6 catalysts prepared with the help of CTAB. The peaks of MoCo 0.9 K 0.6 prepared without CTAB could be assigned to MoS 2, MoO 2, Co-Mo-S, and K 2 CO 3 phases. With the gradual increase of the dosage of CTAB in the preparation, the intensity of the above peaks, especially those attributed to MoS 2 and MoO 2 …

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Cooperative copper centres in a metal ... - Nature Catalysis

Cooperative copper centres in a metal ... - Nature Catalysis

Jul 01, 2019 The reactor was purged with 5 MPa of H 2 and 25 MPa of CO 2. The CO 2 hydrogenation reaction was carried out at 85 C for 10 h. After reaction, the reactor was completely cooled, then slowly vented.

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Degradation and stabilization of ... - ScienceDirect

Degradation and stabilization of ... - ScienceDirect

Mar 01, 2019 The final PU structure depends largely on the macrodiol used, which reacts with the isocyanate initially during the PU synthesis to form the flexible segments [].The macrodiols used for manufacturing PU elastomers typically include those with a main chain formed from polyesters, polyethers, or polyalkyls (), for which the T g ’s are below room temperature (T g = …

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MoS2 monolayer catalyst doped with ... - Nature Chemistry

MoS2 monolayer catalyst doped with ... - Nature Chemistry

Mar 06, 2017 In terms of activity expressed per mole of Co, the catalyst also displays a superior activity of 7,772.5 ml s −1 mol Co −1 (entry 11), which is 89 times more active than that of …

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Development and Recent Progress on Ammonia Synthesis ...

Development and Recent Progress on Ammonia Synthesis ...

They synthesized the support material using two different methods, the solid phase reaction method and the hydrothermal method. [7, 96] The temperature at which water and hydroxyl groups were removed during the hydrothermal synthesis was varied between 873 and 1273 K to find out how this affected the surface area and catalytic performance.

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