A comparative review on clean hydrogen production from wastewaters

Aydin, Muhammed Iberia; Karaca, Ali Erdogan; Qureshy, Ali M.M.I.; Dinçer, İbrahim

doi:10.1016/j.jenvman.2020.111793

Cited by 118 publications

(27 citation statements)

References 122 publications

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“…Over the last decade, wastewater treatment through electrocatalysis has attracted numerous attentions by virtue of the high efficiency, feasibility and environmental friendliness. [137,138] Many pollutants in wastewater possessing various active functional groups with low thermodynamic oxidation potential, making them promising to be coupled with the HER in the HWE for low-voltage H 2 generation. Compared with biomass refining, active anodic pollutants, such as urea, ammonia, and hydrazine, usually possess low molecular weight and high solubility, presenting practical onset potentials far lower than biomass oxidation.…”

Section: Oxidative Degradation Of Pollutantsmentioning

confidence: 99%

Earth‐Abundant Metal‐Based Electrocatalysts Promoted Anodic Reaction in Hybrid Water Electrolysis for Efficient Hydrogen Production: Recent Progress and Perspectives

Deng

Toe

Xuan

et al. 2022

Advanced Energy Materials

142

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Figure 14. a) Schematic diagram of the ammonia-assisted HWE electrolyzer. b) LSVs curves of LNCO55-Ar and Pt/C. c) Electrolysis current density at 1.23 V, and d) the concentration profile of ammonia and removal efficiency of LNCO55-Ar. Reproduced with permission. [219] Copyright 2021, Wiley-VCH. e) Schematic illustration of the AmOR over ternary NiCuFe oxyhydroxide. f) Energy barrier profiles of different reaction steps in NiCuFe oxyhydroxide and NiCu oxyhydroxide via pathway II. Charge difference g) in NiCu oxyhydroxide system, and h) NiCuFe oxyhydroxide. Reproduced with permission. [221] Copyright 2021, Wiley-VCH. i) Performance comparison of sulfide oxidation and OER catalyzed by CoNi@NGs. j) Photo of the H 2 S electrolysis device driven by a 1.2 V commercial battery directly. k) FE and H 2 evolution rates in a galvanostatic test at 100 mA cm −2 . l) Comparison of the projected density of states of S(3p) and its bonded C(2p) when S is adsorbed on the surface of pristine graphene, CoNi@Gs and CoNi@NGs. m) Free energy profiles of the formation of polysulfides (S x *) in the aqueous solution on N-Graphene's surface and CoNi@NGs' surface. Reproduced with permission. [222]

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Section: Oxidative Degradation Of Pollutantsmentioning

confidence: 99%

Earth‐Abundant Metal‐Based Electrocatalysts Promoted Anodic Reaction in Hybrid Water Electrolysis for Efficient Hydrogen Production: Recent Progress and Perspectives

Deng

Toe

Xuan

et al. 2022

Advanced Energy Materials

142

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“…The most analyzed species for direct bio-photolysis is the microalgae 14hlamydomonas reinhardtii. Both photosystems (PSI and PSII) and hydrogenase enzymes play active roles in direct bio-photolysis [82]. The molecules of water are split by green algae in direct bio-photolysis to form oxygen and hydrogen ion via photosynthesis.…”

Section: Bio-photolysis Process Of Hydrogen Productionmentioning

confidence: 99%

“…In this case, the process of the photosynthesis is accompanied by dark fermentation to produce H2O and H2. The conversion of CO2 into an endogenous reserve carbohydrate occurs before the production of hydrogen in the presence of hydrogenase enzyme [82,84]. Figure 10 illustrates the indirect mechanism of the production of hydrogen.…”

Section: Bio-photolysis Process Of Hydrogen Productionmentioning

confidence: 99%

A Critical Review of Renewable Hydrogen Production Methods: Factors Affecting Their Scale-Up and Its Role in Future Energy Generation

Nutakor²,

et al. 2022

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An increase in human activities and population growth have significantly increased the world’s energy demands. The major source of energy for the world today is from fossil fuels, which are polluting and degrading the environment due to the emission of greenhouse gases. Hydrogen is an identified efficient energy carrier and can be obtained through renewable and non-renewable sources. An overview of renewable sources of hydrogen production which focuses on water splitting (electrolysis, thermolysis, and photolysis) and biomass (biological and thermochemical) mechanisms is presented in this study. The limitations associated with these mechanisms are discussed. The study also looks at some critical factors that hinders the scaling up of the hydrogen economy globally. Key among these factors are issues relating to the absence of a value chain for clean hydrogen, storage and transportation of hydrogen, high cost of production, lack of international standards, and risks in investment. The study ends with some future research recommendations for researchers to help enhance the technical efficiencies of some production mechanisms, and policy direction to governments to reduce investment risks in the sector to scale the hydrogen economy up.

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“…Holladay et al discussed hydrogen production from wastewater treatment processes in the detailed review of hydrogen production technologies in 2009. Recently, Aydin et al discussed the state-of-the-art and technological advancements in this area in 2021. Different protocols for different kinds of waste treatment which can efficiently serve the purpose and open new doors of possibilities are listed with advantages and disadvantages in Table . , …”

Section: Hydrogen Generation Processesmentioning

confidence: 99%

“…Recently, Aydin et al discussed the state-of-the-art and technological advancements in this area in 2021. Different protocols for different kinds of waste treatment which can efficiently serve the purpose and open new doors of possibilities are listed with advantages and disadvantages in Table . , …”

Section: Hydrogen Generation Processesmentioning

confidence: 99%

Hydrogen Economy and Role of Hythane as a Bridging Solution: A Perspective Review

2021

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Molecular hydrogen is the most optimistic solution for achieving a carbon-neutral energy economy, and it requires scientific intervention for its production, storage, and transportation. In the present time, hydrogen is produced primarily from conventional fossil fuels. Hydrogen production from natural gas using partial oxidation and steam reforming processes is a relatively mature process. However, several modifications and improvements are being researched. Hydrogen generation from potential renewable and biological sources such as water splitting and biomass conversion are propitious approaches. Hydrogen is one of the smallest molecules, and the volumetric efficiency of its storage is quite poor. The creative and innovative ways for molecular hydrogen storage, including pressurized, liquified, physically adsorbed, chemically adsorbed, and in the form of gas hydrates, are being investigated. The delay in developing a systematic and mature hydrogen economy is mainly due to challenging storage conditions and the safety aspect of its transportation. Hythane, a patented mixture of hydrogen and natural gas, can act as a bridge for the hydrogen economy by sharing the current natural gas infrastructure. This review delivers an extensive understanding of the properties of hythane fuel with a brief history. Hydrogen addition can increase NO x emissions due to exceptional heat generation that can be solved to a certain extent with the approach of inventive technologies developed for internal combustion engines, including three-way catalyst, lean burn combustion, exhaust gas recirculation (EGR), and direct fuel injection (DFI).

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A comparative review on clean hydrogen production from wastewaters

Cited by 118 publications

References 122 publications

Earth‐Abundant Metal‐Based Electrocatalysts Promoted Anodic Reaction in Hybrid Water Electrolysis for Efficient Hydrogen Production: Recent Progress and Perspectives

Earth‐Abundant Metal‐Based Electrocatalysts Promoted Anodic Reaction in Hybrid Water Electrolysis for Efficient Hydrogen Production: Recent Progress and Perspectives

A Critical Review of Renewable Hydrogen Production Methods: Factors Affecting Their Scale-Up and Its Role in Future Energy Generation

Hydrogen Economy and Role of Hythane as a Bridging Solution: A Perspective Review

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