Journal ArticleDOI
Engineering a homogeneous alloy-oxide interface derived from metal-organic frameworks for selective oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid
TLDR
In this article, an active and selective catalyst with an active interface between Au-Pd alloy nanoparticles (NPs) and cobalt oxide supports via calcination of a composite of NPs encapsulated in metal-organic frameworks (MOFs).Abstract:
The selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is an important biomass conversion reaction. However, the multiple intermediates of the reaction make the catalyst design challenging. We engineered an active and selective catalyst with an active interface between Au-Pd alloy nanoparticles (NPs) and cobalt oxide supports via calcination of a composite of NPs encapsulated in metal-organic frameworks (MOFs). The catalyst shows an effective HMF-to-FDCA oxidation with total conversion and 95 % yield by 10 % hydrogen peroxide solution at 90 °C in one hour under atmospheric pressure. The mechanistic study shows that the engineered interface promotes the formation of hydroperoxyl radicals and dioxygen molecules, which accelerate the oxidation of reactive intermediates to FDCA. This work demonstrates the advantage of using MOF composites as a precursor to generate complex but active interfaces with a strong interaction between the metal and metal oxides.read more
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Journal ArticleDOI
Biorefinery roadmap based on catalytic production and upgrading 5-hydroxymethylfurfural
Hou Qidong,Xinhua Qi,Zhen Meinan,Hengli Qian,Yifan Nie,Chuanyunlong Bai,Shiqiu Zhang,Xinyu Bai,Meiting Ju +8 more
TL;DR: In this article, a review describes the recent advances in the design and development of catalytic systems for the conversion of biomass and their constituent carbohydrates to HMF via hydrolysis, isomerization and dehydration reactions, and the upgrading of HMF towards polymer monomers, fine chemicals, fuel precursors, fuel additives, liquid fuels, and other platform chemicals via hydrogenation, oxidation, esterification, etherification, amination and aldol condensation reactions, with emphasis on how the catalysts, solvents and reaction conditions determine the reaction pathway and product
Journal ArticleDOI
Chitin derived nitrogen-doped porous carbons with ultrahigh specific surface area and tailored hierarchical porosity for high performance supercapacitors
TL;DR: In this article, a template-free and one-step carbonization-activation method was proposed for the fabrication of nitrogen rich activated nanosized carbon with hierarchical micro/mesoporous and ultrahigh specific surface area.
Journal ArticleDOI
A review on current trends in potential use of metal-organic framework for hydrogen storage
TL;DR: In this paper, the authors addressed the key strategies that could improve hydrogen storage properties for utilizing hydrogen as fuel and opportunities for further growth to meet energy demands, and found that hydrogen spill over mechanism is found to provide high density storage when compared to other mechanisms.
Journal ArticleDOI
Metal–organic frameworks based on multicarboxylate linkers
Hosein Ghasempour,Kun-Yu Wang,Joshua A. Powell,Farnoosh Zarekarizi,Xiu-Liang Lv,Ali Morsali,Hong-Cai Zhou +6 more
TL;DR: A review of multicarboxylate linkers in MOF systems and their applications, with specific emphasis on how high linker connectivity affects properties of MOFs such as topology, porosity, stability, and functionality can be found in this article.
Journal ArticleDOI
2,5-Furandicarboxylic acid production via catalytic oxidation of 5-hydroxymethylfurfural: Catalysts, processes and reaction mechanism
TL;DR: In this article, a review analytically discusses the recent progress in the thermocatalytic, electrocatalytic and photocatalyst-free oxidation of 5-hydroxymethylfurfural (HMF) into 2,5-furandicarboxylic acid (FDCA) is presented.
References
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Journal ArticleDOI
Metal–organic framework materials as catalysts
JeongYong Lee,Omar K. Farha,John M. Roberts,Karl A. Scheidt,SonBinh T. Nguyen,Joseph T. Hupp +5 more
TL;DR: A critical review of the emerging field of MOF-based catalysis is presented and examples of catalysis by homogeneous catalysts incorporated as framework struts or cavity modifiers are presented.
Journal ArticleDOI
Size- and support-dependency in the catalysis of gold
TL;DR: In this article, the adsorption properties and reactivities of gold are summarized in terms of their size dependency from bulk to fine particles, clusters and atoms, and the catalytic performances of gold markedly depend on dispersion, supports, and preparation methods.
Journal ArticleDOI
Formation of hollow nanocrystals through the nanoscale Kirkendall effect
Yadong Yin,Robert M. Rioux,Can K. Erdonmez,Steven Hughes,Gabor A. Somorjai,A. Paul Alivisatos +5 more
TL;DR: A simple extension of the process yielded platinum–cobalt oxide yolk-shell nanostructures, which may serve as nanoscale reactors in catalytic applications, and provides a general route to the synthesis of hollow nanostructureures of a large number of compounds.
ReportDOI
Top Value Added Chemicals from Biomass: Volume I -- Results of Screening for Potential Candidates from Sugars and Synthesis Gas
Todd A Werpy,G. Petersen +1 more
TL;DR: In this paper, the authors identified twelve building block chemicals that can be produced from sugar via biological or chemical conversions, and the twelve building blocks can be subsequently converted to a number of high-value bio-based chemicals or materials.
Journal Article
Formation of hollow nanocrystals through the nanoscale kirkendall effect
Yadong Yin,Robert M. Rioux,Can K. Erdonmez,Steven Hughes,Gabor A. Somorjai,A. Paul Alivisatos +5 more
TL;DR: Alivisatos et al. as mentioned in this paper demonstrate that hollow nanocrystals can be synthesized through a mechanism analogous to the Kirkendall Effect, in which pores form due to the difference in diffusion rates between two components in a diffusion couple.