scholarly journals A review of recent progress on electrocatalysts toward efficient glycerol electrooxidation

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Peter Adeniyi Alaba ◽  
Ching Shya Lee ◽  
Faisal Abnisa ◽  
Mohamed Kheireddine Aroua ◽  
Patrick Cognet ◽  
...  
Keyword(s):  
Industrial Development ◽  
High Performance ◽  
Rational Design ◽  
Carbon Materials ◽  
Value Added ◽  
Cost Effective ◽  
Biodiesel Production ◽  
Glycerol Oxidation ◽  
Glycerol Electrooxidation ◽  
Insight Into

AbstractGlycerol electrooxidation has attracted immense attention due to the economic advantage it could add to biodiesel production. One of the significant challenges for the industrial development of glycerol electrooxidation process is the search for a suitable electrocatalyst that is sustainable, cost effective, and tolerant to carbonaceous species, results in high performance, and is capable of replacing the conventional Pt/C catalyst. We review suitable, sustainable, and inexpensive alternative electrocatalysts with enhanced activity, selectivity, and durability, ensuring the economic viability of the glycerol electrooxidation process. The alternatives discussed here include Pd-based, Au-based, Ni-based, and Ag-based catalysts, as well as the combination of two or three of these metals. Also discussed here are the prospective materials that are yet to be explored for glycerol oxidation but are reported to be bifunctional (being capable of both anodic and cathodic reaction). These include heteroatom-doped metal-free electrocatalysts, which are carbon materials doped with one or two heteroatoms (N, B, S, P, F, I, Br, Cl), and heteroatom-doped nonprecious transition metals. Rational design of these materials can produce electrocatalysts with activity comparable to that of Pt/C catalysts. The takeaway from this review is that it provides an insight into further study and engineering applications on the efficient and cost-effective conversion of glycerol to value-added chemicals.

scholarly journals Solvent-Free Benzylation of Glycerol by Benzyl Alcohol Using Heteropoly Acid Impregnated on K-10 Clay as Catalyst

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Devendra P. Tekale ◽  
Ganapati D. Yadav ◽  
Ajay K. Dalai
Keyword(s):  
Heterogeneous Catalysis ◽  
Benzyl Alcohol ◽  
Batch Reactor ◽  
Value Added ◽  
Solvent Free ◽  
Biodiesel Production ◽  
Area Measurement ◽  
Solid Catalyst ◽  
Glycerol Ether ◽  
Insight Into

Value addition to glycerol, the sole co-product in biodiesel production, will lead to reform of the overall biodiesel economy. Different valuable chemicals can be produced from glycerol using heterogeneous catalysis and these valuable chemicals are useful in industries such as cosmetics, pharmaceuticals, fuels, soap, paints, and fine chemicals. Therefore, the conversion of glycerol to valuable chemicals using heterogeneous catalysis is a noteworthy area of research. Etherification of glycerol with alkenes or alcohols is an important reaction in converting glycerol to various value-added chemicals. This article describes reaction of glycerol with benzyl alcohol in solvent-free medium by using a clay supported modified heteropolyacid (HPA), Cs2.5H0.5PW12O40/K-10 (Cs-DTP/K-10) as solid catalyst and its comparison with other catalysts in a batch reactor. Mono-Benzyl glycerol ether (MBGE) was the major product formed in the reaction along with formation of di-benzyl glycerol ether (DBGE). The effects of different parameters were studied to optimize the reaction parameters. This work provides an insight into characterization of Cs2.5H0.5PW12O40/K-10 catalyst by advanced techniques such as surface area measurement, X-ray analysis, ICP-MS, FT-IR, and SEM. Reaction products were characterized and confirmed by using the GCMS method. The kinetic model was developed from an insight into the reaction mechanism. The apparent energy of activation was found to be 18.84 kcal/mol.

Bioinspired tailoring of nanoarchitectured nickel sulfide@nickel permeated carbon composite as highly durable and redox chemistry enabled battery-type electrode for hybrid supercapacitors

2021 ◽  
Author(s):  
Mohan Reddy Pallavolu ◽  
Ramesh Reddy N ◽  
Hemachandra Rao Goli ◽  
Arghya Narayan Banerjee ◽  
G. Rajasekhara Reddy ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Cost Effective ◽  
Carbon Composite ◽  
Metal Chalcogenides ◽  
Energy Storage Devices ◽  
Active Electrode ◽  
Storage Devices ◽  
Hybrid Supercapacitors

Rational design of highly conductive and redox-active electrode materials composed of metal chalcogenides and carbon composites has attracted promising attention for the development of high-performance energy storage devices. Herein, cost-effective...

Utilization of lipid-extracted biomass (LEB) to improve the economic feasibility of biodiesel production from green microalgae

2020 ◽  
Vol 28 (3) ◽  
pp. 325-338
Author(s):  
Sabrina Marie Desjardins ◽  
Corey Alfred Laamanen ◽  
Nathan Basiliko ◽  
John Ashley Scott
Keyword(s):  
Lipid Extraction ◽  
Cell Mass ◽  
Value Added ◽  
Cost Effective ◽  
Economic Feasibility ◽  
Biodiesel Production ◽  
Green Microalgae ◽  
Eukaryotic Microorganisms ◽  
Anthropogenic Carbon ◽  
Additional Value

Photosynthetic green microalgae are eukaryotic microorganisms that can mitigate anthropogenic carbon dioxide and generate lipids as a feedstock for production of biodiesel. Biodiesel production may not, however, compete economically with fossil fuel sourced diesel, but obtaining additional value from the biomass left after lipid extraction has the potential to help make the overall process more cost-effective. This review focuses on these additional value-added options that obtain and utilize either whole lipid-extracted biomass (LEB), which typically constitutes 60%–70% of total cell mass, or specific non-biodiesel lipid components such as polyunsaturated fatty acids, carbohydrates, and proteins.

scholarly journals Perovskite Oxides as Electrocatalyst for Glycerol Oxidation.

2020 ◽  
Author(s):  
Patrícia Santiago ◽  
Carlos C. Lima ◽  
José L. Bott-Neto ◽  
Pablo Fernández ◽  
Camilo A. Angelucci ◽  
...  
Keyword(s):  
Glycolic Acid ◽  
Market Price ◽  
Catalytic Performance ◽  
Perovskite Oxides ◽  
Biodiesel Production ◽  
Glycerol Oxidation ◽  
Alternative Source ◽  
Glycerol Electrooxidation ◽  
New Class ◽  
Current Densities

Glycerol is a co-product from Biodiesel production with high abundance and low market price. Its transformation into valuable products or as an alternative source of energy has driven the search for selective catalysts. Herein we present the first findings of perovskites as electrocatalysts for glycerol electrooxidation (GEOR). Alternatively to Pt and Pd based catalyst, perovskite oxides (LaNiO<sub>3</sub> and LaCoO<sub>3</sub>) demonstrated high catalytic performance with faradaic currents of ca. 18 mA mg<sup>-1</sup> at potentials higher than 1.6 V vs. RHE. Consecutive potential cycles exhibited the LaCoO<sub>3</sub> perovskite resistant to poisoning during GEOR. Based on FTIR and online HPLC experiments the GEOR on perovskite oxides yields formic acid and glycolic acid as final products, with no signal of CO<sub>2</sub> formation. Our results thus indicate that perovskites can be considered as an alternative for selectively oxidize glycerol, opening the door for a large variety of a new class of catalysts for polyols oxidation with efficiency in terms of current densities and poisoning stability.

Rational design of cost-effective dyes for high performance dye-sensitized cells in indoor light environments

2018 ◽  
Vol 59 ◽  
pp. 69-76 ◽  
Author(s):  
Chih-Hsin Chen ◽  
Po-Ting Chou ◽  
Ta-Chung Yin ◽  
Kuan-Fu Chen ◽  
Man-Ling Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Cost Effective ◽  
Dye Sensitized

scholarly journals Structure Engineering in Biomass-Derived Carbon Materials for Electrochemical Energy Storage

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-27 ◽  
Author(s):  
Ruizi Li ◽  
Yanping Zhou ◽  
Wenbin Li ◽  
Jixin Zhu ◽  
Wei Huang
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Rational Design ◽  
Large Scale ◽  
Electrode Materials ◽  
Carbon Materials ◽  
Electrochemical Energy Storage ◽  
Diffusion Kinetics ◽  
Practical Application ◽  
Electrochemical Energy

Biomass-derived carbon materials (B-d-CMs) are considered as a group of very promising electrode materials for electrochemical energy storage (EES) by virtue of their naturally diverse and intricate microarchitectures, extensive and low-cost source, environmental friendliness, and feasibility to be produced in a large scale. However, the practical application of raw B-d-CMs in EES is limited by their relatively rare storage sites and low diffusion kinetics. In recent years, various strategies from structural design to material composite manipulation have been explored to overcome these problems. In this review, a controllable design of B-d-CM structures boosting their storage sites and diffusion kinetics for EES devices including SIBs, Li-S batteries, and supercapacitors is systematically summarized from the aspects of effects of pseudographic structure, hierarchical pore structure, surface functional groups, and heteroatom doping of B-d-CMs, as well as the composite structure of B-d-CMs, aiming to provide guidance for further rational design of the B-d-CMs for high-performance EES devices. Besides, the contemporary challenges and perspectives on B-d-CMs and their composites are also proposed for further practical application of B-d-CMs for EES devices.

scholarly journals Electrocatalytic glycerol oxidation with concurrent hydrogen evolution utilizing an efficient MoOx/Pt catalyst

2020 ◽  
Author(s):  
Mats Johnsson ◽  
Xiaowen Yu ◽  
Egon Campos dos Santos ◽  
Jai White ◽  
German Salazar-Alvarez ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
High Performance ◽  
Theoretical Calculations ◽  
Value Added ◽  
Pt Nanoparticles ◽  
Cell Voltage ◽  
Water Electrolysis ◽  
Pt Catalyst ◽  
Electronic Interaction ◽  
Glycerol Oxidation

Abstract Glycerol electrolysis affords a green and energetically favorable route for the production of value-added chemicals at the anode and H2 production in parallel at the cathode. Here, we report a novel and facile method for trapping Pt nanoparticles at oxygen vacancies of molybdenum oxide (MoOx) nanosheets, yielding a high-performance MoOx/Pt composite electrocatalyst for both the glycerol oxidation reaction (GOR) and the hydrogen evolution reaction (HER) in alkaline electrolytes. Combined electrochemical experiments and theoretical calculations revealed the important role of MoOx nanosheets for the adsorption of glycerol molecules in GOR and the dissociation of water molecules in HER, as well as the strong electronic interaction with Pt. With MoOx/Pt electrodes serving as both cathode and anode, we achieve two-electrode glycerol electrolysis at a cell voltage of 0.70 V to reach a current density of 10 mA cm− 2, which is 0.90 V less than that required for water electrolysis.

scholarly journals Perovskite Oxides as Electrocatalyst for Glycerol Oxidation.

2020 ◽  
Author(s):  
Patrícia Santiago ◽  
Carlos C. Lima ◽  
José L. Bott-Neto ◽  
Pablo Fernández ◽  
Camilo A. Angelucci ◽  
...  
Keyword(s):  
Glycolic Acid ◽  
Market Price ◽  
Catalytic Performance ◽  
Perovskite Oxides ◽  
Biodiesel Production ◽  
Glycerol Oxidation ◽  
Alternative Source ◽  
Glycerol Electrooxidation ◽  
New Class ◽  
Current Densities

Glycerol is a co-product from Biodiesel production with high abundance and low market price. Its transformation into valuable products or as an alternative source of energy has driven the search for selective catalysts. Herein we present the first findings of perovskites as electrocatalysts for glycerol electrooxidation (GEOR). Alternatively to Pt and Pd based catalyst, perovskite oxides (LaNiO<sub>3</sub> and LaCoO<sub>3</sub>) demonstrated high catalytic performance with faradaic currents of ca. 18 mA mg<sup>-1</sup> at potentials higher than 1.6 V vs. RHE. Consecutive potential cycles exhibited the LaCoO<sub>3</sub> perovskite resistant to poisoning during GEOR. Based on FTIR and online HPLC experiments the GEOR on perovskite oxides yields formic acid and glycolic acid as final products, with no signal of CO<sub>2</sub> formation. Our results thus indicate that perovskites can be considered as an alternative for selectively oxidize glycerol, opening the door for a large variety of a new class of catalysts for polyols oxidation with efficiency in terms of current densities and poisoning stability.

scholarly journals Strategies to Produce Cost-Effective Third-Generation Biofuel From Microalgae

2021 ◽  
Vol 9 ◽  
Author(s):  
Nazifa Rafa ◽  
Shams Forruque Ahmed ◽  
Irfan Anjum Badruddin ◽  
M. Mofijur ◽  
Sarfaraz Kamangar
Keyword(s):  
Large Scale ◽  
Cost Minimization ◽  
Value Added ◽  
Cost Effective ◽  
Global Market ◽  
Production Costs ◽  
Biodiesel Production ◽  
Third Generation ◽  
The Cost ◽  
Generation Biofuel

Third-generation biofuel produced from microalgae is a viable solution to global energy insecurity and climate change. Despite an annual current global algal biomass production of 38 million litres, commercialization confronts significant economic challenges. However, cost minimization strategies, particularly for microalgae cultivation, have largely been excluded from recent studies. Therefore, this review provides essential insights into the technologies and economics of cost minimization strategies for large-scale applications. Cultivation of microalgae through aquafarming, in wastewater, or for biogas upgrading, and co-production of value-added products (VAPs) such as photo-bioreactors, protein, astaxanthin, and exopolysaccharides can drastically reduce biodiesel production costs. For instance, the co-production of photo-bioreactors and astaxanthin can reduce the cost of biodiesel production from $3.90 to $0.54 per litre. Though many technical challenges need to be addressed, the economic analysis reveals that incorporating such cost-effective strategies can make the biorefinery concept feasible and profitable. The cost of producing microalgal biodiesel can be lowered to $0.73kg−1 dry weight when cultivated in wastewater or $0.54L−1 when co-produced with VAPs. Most importantly, access to co-product markets with higher VAPs needs to be encouraged as the global market for microalgae-based VAPs is estimated to rise to $53.43 billion in 2026. Therefore, policies that incentivize research and development, as well as the production and consumption of microalgae-based biodiesel, are important to reduce the large gap in production cost that persists between biodiesel and petroleum diesel.

Rational design of cobalt–chromium layered double hydroxide as a highly efficient electrocatalyst for water oxidation

2016 ◽  
Vol 4 (29) ◽  
pp. 11292-11298 ◽  
Author(s):  
Chenlong Dong ◽  
Xiaotao Yuan ◽  
Xin Wang ◽  
Xiangye Liu ◽  
Wujie Dong ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
High Performance ◽  
Rational Design ◽  
Cost Effective ◽  
Cobalt Chromium ◽  
Electrochemical Water Splitting ◽  
Double Hydroxide

The design of a high performance, stable and cost-effective electrocatalyst for oxygen evolution is crucial for H2 production from electrochemical water splitting.

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