Atom Doping Engineering of Metal/Carbon Catalysts for Biomass Hydrodeoxygenation

Abstract

Developing novel and efficient hydrodeoxygenation (HDO) catalysts plays a crucial role on biomass utilization from green and sustainable points of view. In the past, carbon materials were recognized as ideal catalyst carriers due to their fascinating properties including tunable surface structure and excellent chemical and thermal stability. Recently, the newly emerging metal/heteroatom-doped carbon catalysts have arguably experienced tremendous advances and gained widespread interest in view of the fact that heteroatom doping can further tailor the properties of carbon and introduce various metal–carrier interactions, resulting in superior HDO catalyst performance compared to pristine metal/carbon catalysts. In this perspective, we focus on the synthesis strategies for metal/heteroatom-doped carbon catalysts, the property effects of heteroatom doping, and catalytic applications through these fascinating catalysts in biomass HDO. Notably, we try to elucidate the doping effects through a summary of the mechanisms, thereby providing guidance for the rational design of advanced HDO catalysts for biomass catalysis.

Coordination chemistry for innovative carbon-related materials

“…Post-synthetic metal coordination introduces metal ions into pre-made carbon-based materials [62][63][64]. There are several methods including atomic layer deposition (ALD) [65][66][67], strong electrostatic adsorption [68] and wet chemistry approaches [69][70][71].…”

Significant Promotion of Carboxyl Groups in Palladium Nanoparticles-Supported Biomass Carbon Catalysts for Efficient Low-Temperature Hydrodeoxygenation of Lignin Derivatives in Water

“…Biomass is considered an important nature renewable resource for the production of sustainable alternatives to meet the demands of the rapid development of industries and human lives. − However, a high content of oxygen in the feedstock (such as lignin), which decreases the octane number and cannot directly combust in the engines, greatly casts a shadow on its bright prospect. Besides, a certain amount of water (>10 wt %) also exists in the mixture of lignin derivatives, which are generally produced through direct pyrolysis of lignin or lignocellulosic biomass, , and it is difficult to separate these water-miscible organic compounds from the aqueous mixture in some cases.…”

Fluorescent porous organic polymers for detection and adsorption of nitroaromatic compounds

“…Porous organic polymers constructed by covalently linked porous materials exhibit unique structural and functional diversity and possess the advantages of a high specific surface area, low cost, ease modifiability, chemical robustness (e.g., acids and alkaline resistance, organic solvent tolerance, and so on), which have been developed rapidly in the area of gas adsorption 1 – 3 and separation 4 – 6 , catalysis 7 – 9 , energy storage 10 – 12 , sensing 13 – 15 , etc. The porous organic polymers mainly include: hyper-crosslinked polymers 16 , conjugated microporous polymers 17 , porous aromatic framework 18 , covalent triazine framework 19 , and covalent organic frameworks 20 .…”