Ni₃P as a high-performance catalytic phase for the hydrodeoxygenation of phenolic compounds

Abstract

Ni3P shows extremely high activity and stability in phenol hydrodeoxygenation both in the aqueous phase and in the organic phase.

Hollow MFI Zeolite Supported Pt Catalysts for Highly Selective and Stable Hydrodeoxygenation of Guaiacol to Cycloalkanes

“…As a result, bio-oils must be upgraded before they can be used as standard liquid fuels. Catalytic hydrodeoxygenation (HDO) is generally considered as the most effective strategy for upgrading bio-oils [9].…”

“…However, these catalysts suffer from gradual deactivation during the HDO reaction due to the loss of sulfur, because the sulfur content in bio-oils is very low and the lost sulfur will contaminate the resulting fuels [5]. Hence, non-sulfide catalysts have been developed and investigated including noble metals [12,13,14,15,16], transition metal phosphides [9,17,18,19], carbides [20,21], and nitrides [22,23] in order to replace sulfided catalysts and these catalysts exhibited excellent HDO activity of bio-oils and deoxygenation selectivity for hydrocarbons. However, the rapid deactivation because of coke formation during the HDO reaction hinders their extensive application [24,25].…”

“…Phenols are the primary oxygenates in bio-oils and phenolic oxygen is very difficult to be removed [9,35]. Therefore, guaiacol, a typical lignin monomer containing both methoxy and phenolic hydroxyl groups, is usually selected as a model compound to evaluate the HDO performance of various catalysts.…”

In-situ X-ray Observation of Synthesizing Process for Rare-earth Transition-metal Pnictides under High Temperature and High Pressure

“…Transition metal pnictides have attracted much attention for their various anomalous physical properties and application as functional materials such as thermoelectric (TE) materials, superconductors and [1][2][3][4][5][6][7] catalysts. However, a synthesis of good quality samples free from secondary phases or impurities for transition-metal pnictides is extremely difficult at ambient pressure because the vapor pressure of pnictogen is considerably high.…”

Understanding the Reduction of Transition‐Metal Phosphates to Transition‐Metal Phosphides by Combining Temperature‐Programmed Reduction and Infrared Spectroscopy

“…[5] They exhibit high activity and stability under hydrotreating conditions, and are suggested to constitute a new family of HDS and HDN catalysts. [6] In recent years, TMPs are also found to be promising for a variety of other important reactions such as hydrogenation, [7] hydrodeoxygenation, [8] hydrogen evolution, [9] oxygen reduction, [10] methanol oxidation, [11] methanol synthesis from CO and CO 2 , [12] as well as anode materials for lithium ion batteries. [13] In summary, TMPs have been identified as versatile and efficient catalysts in the fields of the production of clean fossil fuels and renewable energies, as well as energy storage technologies.…”