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Bisarya A, Karim S, Narjinari H, Banerjee A, Arora V, Dhole S, Dutta A, Kumar A. Production of hydrogen from alcohols via homogeneous catalytic transformations mediated by molecular transition-metal complexes. Chem Commun (Camb) 2024; 60:4148-4169. [PMID: 38563372 DOI: 10.1039/d4cc00594e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Hydrogen obtained from renewable sources such as water and alcohols is regarded as an efficient clean-burning alternative to non-renewable fuels. The use of the so-called bio-H2 regardless of its colour will be a significant step towards achieving global net-zero carbon goals. Challenges still persist however with conventional H2 storage, which include low-storage density and high cost of transportation apart from safety concerns. Global efforts have thus focussed on liquid organic hydrogen carriers (LOHCs), which have shown excellent potential for H2 storage while allowing safer large-scale transformation and easy on-site H2 generation. While water could be considered as the most convenient liquid inorganic hydrogen carrier (LIHC) on a long-term basis, the utilization of alcohols as LOHCs to generate on-demand H2 has tasted instant success. This has helped to draw a road-map of futuristic H2 storage and transportation. The current review brings to the fore the state-of-the-art developments in hydrogen generation from readily available, feed-agnostic bio-alcohols as LOHCs using molecular transition-metal catalysts.
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Affiliation(s)
- Akshara Bisarya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
| | - Suhana Karim
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
- National Centre of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Himani Narjinari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
| | - Anwesha Banerjee
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
- National Centre of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
| | - Sunil Dhole
- ChemDist Group of Companies, Plot No 144 A, Sector 7, PCNTDA, Bhosari Pune - 411026, Maharashtra, India
| | - Arnab Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
- National Centre of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India
- Jyoti and Bhupat Mehta School of Health Science & Technology Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India
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Morsy FM, Elbadry M, Elbahloul Y. Semidry acid hydrolysis of cellulose sustained by autoclaving for production of reducing sugars for bacterial biohydrogen generation from various cellulose feedstock. PeerJ 2021; 9:e11244. [PMID: 33976974 PMCID: PMC8061573 DOI: 10.7717/peerj.11244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/18/2021] [Indexed: 11/20/2022] Open
Abstract
Cellulosic biowastes are one of the cheapest and most abundant renewable organic materials on earth that can be, subsequent to hydrolysis, utilized as an organic carbon source for several fermentation biotechnologies. This study was devoted to explore a semidry acid hydrolysis of cellulose for decreasing the cost and ionic strength of the hydrolysate. For semidry acid hydrolysis, cellulose was just wetted with HCl (0 to 7 M) and subjected to autoclaving. The optimum molar concentration of HCl and period of autoclaving for semidry acid hydrolysis of cellulose were 6 M and 50 min respectively. Subsequent to the semidry acid hydrolysis with a minimum volume of 6 M HCl sustained by autoclaving, the hydrolysate was diluted with distilled water and neutralized with NaOH (0.5 M). The reducing sugars produced from the semidry acid hydrolysis of cellulose was further used for dark fermentation biohydrogen production by Escherichia coli as a representative of most hydrogen producing eubacteria which cannot utilize non-hydrolyzed cellulose. An isolated E. coli TFYM was used where this bacterium was morphologically and biochemically characterized and further identified by phylogenetic 16S rRNA encoding gene sequence analysis. The reducing sugars produced by semidry acid hydrolysis could be efficiently utilized by E. coli producing 0.4 mol H2 mol-1 hexose with a maximum rate of hydrogen gas production of 23.3 ml H2 h-1 L-1 and an estimated hydrogen yield of 20.5 (L H2 kg-1 dry biomass). The cheap cellulosic biowastes of wheat bran, sawdust and sugarcane bagasse could be hydrolyzed by semidry acid hydrolysis where the estimated hydrogen yield per kg of its dry biomass were 36, 18 and 32 (L H2 kg-1 dry biomass) respectively indicating a good feasibility of hydrogen production from reducing sugars prepared by semidry acid hydrolysis of these cellulosic biowastes. Semidry acid hydrolysis could also be effectively used for hydrolyzing non-cellulosic polysaccharides of dry cyanobacterial biomass. The described semidry acid hydrolysis of cellulosic biowastes in this study might be applicable not only for bacterial biohydrogen production but also for various hydrolyzed cellulose-based fermentation biotechnologies.
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Affiliation(s)
- Fatthy Mohamed Morsy
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Assiut, Egypt
| | - Medhat Elbadry
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Agricultural Microbiology Department, Faculty of Agriculture, Fayoum University, Fayoum, Fayoum, Egypt
| | - Yasser Elbahloul
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Alexandria, Egypt
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Weide T, Hernández Regalado RE, Brügging E, Wichern M, Wetter C. Biohydrogen Production via Dark Fermentation with Pig Manure and Glucose Using pH‐Dependent Feeding. Chem Eng Technol 2020. [DOI: 10.1002/ceat.201900678] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tobias Weide
- Münster University of Applied Sciences Faculty of Energy·Building Services·Environmental Engineering Stegerwaldstrasse 39 48565 Steinfurt Germany
- Münster University of Applied Sciences Institute Association for Resources, Energy and Infrastructure Stegerwaldstrasse 39 48565 Steinfurt Germany
| | - Roberto Eloy Hernández Regalado
- Münster University of Applied Sciences Faculty of Energy·Building Services·Environmental Engineering Stegerwaldstrasse 39 48565 Steinfurt Germany
- Münster University of Applied Sciences Institute Association for Resources, Energy and Infrastructure Stegerwaldstrasse 39 48565 Steinfurt Germany
| | - Elmar Brügging
- Münster University of Applied Sciences Faculty of Energy·Building Services·Environmental Engineering Stegerwaldstrasse 39 48565 Steinfurt Germany
- Münster University of Applied Sciences Institute Association for Resources, Energy and Infrastructure Stegerwaldstrasse 39 48565 Steinfurt Germany
| | - Marc Wichern
- Ruhr-Universität Bochum Institute of Urban Water Management and Environmental Engineering Universitätsstrasse 150 44801 Bochum Germany
| | - Christof Wetter
- Münster University of Applied Sciences Faculty of Energy·Building Services·Environmental Engineering Stegerwaldstrasse 39 48565 Steinfurt Germany
- Münster University of Applied Sciences Institute Association for Resources, Energy and Infrastructure Stegerwaldstrasse 39 48565 Steinfurt Germany
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Simple, fast and accurate method for the determination of glycogen in the model unicellular cyanobacterium Synechocystis sp. PCC 6803. J Microbiol Methods 2019; 164:105686. [PMID: 31400361 DOI: 10.1016/j.mimet.2019.105686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
Glycogen is a highly soluble branched polymer composed of glucose monomers linked by glycosidic bonds that represents, together with starch, one of the main energy storage compounds in living organisms. While starch is present in plant cells, glycogen is present in bacteria, protozoa, fungi and animal cells. Due to its essential function, it has been the subject of intense research for almost two centuries. Different procedures for the isolation and quantification of glycogen, according to the origin of the sample and/or the purpose of the study, have been reported in the literature. The objective of this study is to optimize the methodology for the determination of glycogen in cyanobacteria, as the interest in cyanobacterial glycogen has increased in recent years due to the biotechnological application of these microorganisms. In the present work, the methodology reported for the quantification of glycogen in cyanobacteria has been reviewed and an extensive empirical analysis has been performed showing how this methodology can be optimized significantly to reduce time and improve reliability and reproducibility. Based on these results, a simple and fast protocol for quantification of glycogen in the model unicellular cyanobacterium Synechocystis sp. PCC 6803 is presented, which could also be successfully adapted to other cyanobacteria.
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