Highly-active nickel phosphide hydrotreating catalysts prepared in situ using nickel hypophosphite precursors

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Electroless Nickel Plating with Hypophosphite

In the previous chapter, the components of electroless nickel plating baths were discussed from the viewpoint of the function each performs in the bath, with little attention paid to their effect on the plating process. The metal and the electron source (the reducing agent) are consumed in the electroless plating reaction and so their concentrations in the bath are continuously decreasing. Ther...

متن کامل

Highly Active Binuclear Neutral Nickel(II) Catalysts Affording High Molecular Weight Polyethylene

A series of new binuclear neutral κ-N,O-chelated Ni(II) complexes [(H2C)n{[(2,6-R2-4-yl-C6H2)NdC(H)-(3,5-I2-2-O-C6H2)-κ-N,O]Ni(CH3)(pyridine)}2] (R ) iPr, 3,5-(CF3)2C6H3; n ) 0, 1) are reported. The complexes are single-component catalyst precursors for ethylene polymerization. Catalyst activities exceed those of mononuclear analogues studied substantially. With 3.4 × 10 TO h, high molecular we...

متن کامل

Highly active nickel catalysts for the isomerization of unactivated vinyl cyclopropanes to cyclopentenes.

General information. N-Heterocyclic carbene ligands and their corresponding salts (e.g., IMes and IMesBF 4 , IPr and IPrBF 4) were prepared as previously reported or under slightly modified procedures and handled in a N 2 filled drybox or using standard Schlenk techniques.

متن کامل

High catalytic activity for water oxidation based on nanostructured nickel phosphide precursors.

For the first time, noble-metal-free nickel phosphide (Ni2P) was used as an excellent catalyst precursor for water oxidation catalysis. The lowest onset potential was observed at ∼1.54 V (vs. RHE) and a Tafel slope of 60 mV dec(-1) was obtained in alkaline solution (pH = 13.6).

متن کامل

The Kinetics of Methanation on Nickel Catalysts

An empirical rate equation was obtained for the methanation kinetics catalyzed by MCR-2X, a commercial catalyst prepared by Haldor-Topsoe. The studies were carried out in a fixed-bed reactor under differential conditions, and in a gradientless recycle reactor (Berry) over a range of total pressures, reactant concentractions (H2/CO ratios), and temperatures. The kinetics of methanation were foun...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Catalysis

سال: 2016

ISSN: 0021-9517

DOI: 10.1016/j.jcat.2015.12.006