scholarly journals Advances in porous and nanoscale catalysts for viable biomass conversion

2019 ◽  
Vol 48 (8) ◽  
pp. 2366-2421 ◽  
Author(s):  
Putla Sudarsanam ◽  
Elise Peeters ◽  
Ekaterina V. Makshina ◽  
Vasile I. Parvulescu ◽  
Bert F. Sels

Solid catalysts with unique porosity and nanoscale properties play a promising role for efficient valorization of biomass into sustainable advanced fuels and chemicals.

2018 ◽  
Vol 20 (2) ◽  
pp. 457-468 ◽  
Author(s):  
Eric P. Knoshaug ◽  
Ali Mohagheghi ◽  
Nick J. Nagle ◽  
Jonathan J. Stickel ◽  
Tao Dong ◽  
...  

Demonstration of a novel integrated algal biomass conversion process for fuels and chemicals.


2009 ◽  
Vol 3 (2) ◽  
pp. 219-230 ◽  
Author(s):  
Bruce E. Dale ◽  
Michael S. Allen ◽  
Mark Laser ◽  
Lee R. Lynd

2018 ◽  
Vol 20 (8) ◽  
pp. 1866-1873 ◽  
Author(s):  
Wei Zhang ◽  
Bernd Ensing ◽  
Gadi Rothenberg ◽  
N. Raveendran Shiju

A novel highly efficient solid catalyst in which vanadia is supported on pyridine-rich carbon is designed for the oxidation of ethyl lactate to ethyl pyruvate.


2018 ◽  
Vol 458 ◽  
pp. 247-260 ◽  
Author(s):  
Koushik Ponnuru ◽  
Jinesh C. Manayil ◽  
Hong Je Cho ◽  
Amin Osatiashtiani ◽  
Wei Fan ◽  
...  

Author(s):  
Sergio Tosoni ◽  
Hsin-Yi Tiffany Chen ◽  
Antonio Ruiz Puigdollers ◽  
Gianfranco Pacchioni

Biomass refers to plant-based materials that are not used for food or feed. As an energy source, lignocellulosic biomass (lignin, cellulose and hemicellulose) can be converted into various forms of biofuel using thermal, chemical and biochemical methods. Chemical conversion implies the use of solid catalysts, usually oxide materials. In this context, reducible oxides are considered to be more active than non-reducible oxides. But why? Using density functional theory DFT + U calculations with the inclusion of dispersion forces, we describe the properties of anatase TiO 2 , a reducible oxide, and tetragonal ZrO 2 , a non-reducible oxide, the (101) surfaces in this context. In particular, we focus on the role of surface reduction, either by direct creation of oxygen vacancies via O 2 desorption, or by treatment in hydrogen. We show that the presence of reduced centres on the surface of titania or zirconia (either Ti 3+ or Zr 3+ ions, or oxygen vacancies) results in lower barriers and more stable intermediates in two key reactions in biomass catalytic conversion: ketonization of acetic acid (studied on ZrO 2 ) and deoxygenation of phenol (studied on TiO 2 ). We discuss the role of Ru nanoparticles in these processes, and in particular in favouring H 2 dissociation and hydrogen spillover, which results in hydroxylated surfaces. We suggest that H 2 O desorption from the hydroxylated surfaces may be a relevant mechanism for the regeneration of oxygen vacancies, in particular on low-coordinated sites of oxide nanoparticles. Finally, we discuss the role of nanostructuring in favouring oxide reduction, by discussing the properties of ZrO 2 nanoparticles of diameter of about 2 nm. This article is part of a discussion meeting issue ‘Providing sustainable catalytic solutions for a rapidly changing world’.


2019 ◽  
Vol 109 ◽  
pp. 386-411 ◽  
Author(s):  
Farah B. Ahmad ◽  
Zhanying Zhang ◽  
William O.S. Doherty ◽  
Ian M. O'Hara

2016 ◽  
Vol 6 (8) ◽  
pp. 2543-2559 ◽  
Author(s):  
Daniel E. Resasco ◽  
Bin Wang ◽  
Steven Crossley

Biomass conversion to fuels requires elimination of oxygenated functionalities along with formation of C–C bonds to help keeping the largest possible amount of carbon in the fuel range (e.g. C7–C15).


Sign in / Sign up

Export Citation Format

Share Document