A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts

Chemical Reviews, Journal Year: 2019, Volume and Issue: 120(2), P. 1250 - 1349

Published: Oct. 2, 2019

The support plays an important role for supported metal catalysts by positioning itself as a macromolecular ligand, which conditions the nature of active site and contributes indirectly but also sometimes directly to reactivity. Metal species such nanoparticles, clusters, or single atoms can be deposited on carbon materials various catalytic reactions. All used catalyst constitute large family compounds that vary both at textural structural levels. Today, recent developments well-controlled synthesis methodologies, advanced characterization techniques, modeling tools allow one correlate relationships between metal/support/reactant molecular level. Based these considerations, in this Review article, we wish provide some answers question "How why anchoring catalysis?". To do this, will rely experimental theoretical studies. We first analyze what sites are available surface phase. Then, describe effects catalysis inherent presence carbon-type (metal–support interaction, confinement, spillover, functional group effects). These commented putting into perspective results obtained numerous reactions thermal catalysis, electrocatalysis, photocatalysis.

Language: Английский

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Biochar in climate change mitigation

Nature Geoscience, Journal Year: 2021, Volume and Issue: 14(12), P. 883 - 892

Published: Dec. 1, 2021

Language: Английский

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Waste-derived biochar for water pollution control and sustainable development

Nature Reviews Earth & Environment, Journal Year: 2022, Volume and Issue: 3(7), P. 444 - 460

Published: June 21, 2022

Language: Английский

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A comprehensive review of engineered biochar: Production, characteristics, and environmental applications

Journal of Cleaner Production, Journal Year: 2020, Volume and Issue: 270, P. 122462 - 122462

Published: June 1, 2020

Language: Английский

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Applications of biochar in redox-mediated reactions

Bioresource Technology, Journal Year: 2017, Volume and Issue: 246, P. 271 - 281

Published: June 30, 2017

Language: Английский

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Microplastic effects on carbon cycling processes in soils

PLoS Biology, Journal Year: 2021, Volume and Issue: 19(3), P. e3001130 - e3001130

Published: March 30, 2021

Microplastics (MPs), plastic particles <5 mm, are found in environments, including terrestrial ecosystems, planetwide. Most research so far has focused on ecotoxicology, examining effects performance of soil biota controlled settings. As pivots to a more ecosystem and global change perspective, questions about soil-borne biogeochemical cycles become important. MPs can affect the carbon cycle numerous ways, for example, by being themselves influencing microbial processes, plant growth, or litter decomposition. Great uncertainty surrounds nano-sized particles, an expected by-product further fragmentation MPs. A major concerted effort is required understand pervasive functioning soils ecosystems; importantly, such needs capture immense diversity these terms chemistry, aging, size, shape.

Language: Английский

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Biochar as both electron donor and electron shuttle for the reduction transformation of Cr(VI) during its sorption

Environmental Pollution, Journal Year: 2018, Volume and Issue: 244, P. 423 - 430

Published: Oct. 16, 2018

Language: Английский

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Hydrochar-Facilitated Anaerobic Digestion: Evidence for Direct Interspecies Electron Transfer Mediated through Surface Oxygen-Containing Functional Groups

Environmental Science & Technology, Journal Year: 2020, Volume and Issue: 54(9), P. 5755 - 5766

Published: April 7, 2020

Acceleration of the anaerobic digestion (AD) process is crucial to achieving energy-efficient recycling organic wastes. Hydrochar produced by hydrothermal liquefaction biomass, yet its application in AD rarely reported. The present study showed that sewage sludge-derived hydrochar (SH) enhanced methane production rate glucose 37%. SH increased from acetate but did not affect acidification and H2/CO2. hydrogenotrophic methanogenesis, which could be due direct interspecies electron transfer (DIET) converting H+, e–, CO2 methane. Trichococcus Methanosaeta were dominant with SH. Label-free proteomic analysis was involved DIET as reflected up-regulation proteins methanogenesis. Hydrochars derived corn straw (CH), Enteromorpha algae (EH), poplar wood (PH), well activated carbon (AC), also tested process. SH, CH, EH obviously rates, 39%, 15%, 20% higher than control experiment, respectively. It neither electrical conductivity nor total redox property hydrochars AC abundances surface oxygen-containing functional groups correlated rates.

Language: Английский

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Activated Carbon, Biochar and Charcoal: Linkages and Synergies across Pyrogenic Carbon’s ABCs

Water, Journal Year: 2018, Volume and Issue: 10(2), P. 182 - 182

Published: Feb. 9, 2018

Biochar and activated carbon, both carbonaceous pyrogenic materials, are important products for environmental technology intensively studied a multitude of purposes. A strict distinction between these materials is not always possible, also generally accepted terminology lacking. However, research on increasingly overlapping: sorption remediation the domain which nowadays addressed by studies biochar. Thus, awareness fields knowledge about biochar carbon necessary designing novel materials. Here, we describe dividing ranges common grounds biochar, other such as charcoal based their history, definition production technologies. This review summarizes thermochemical conversions non-thermal pre- post-treatments that used to produce carbon. Our overview shows should take advantage numerous techniques activation modification tailor biochars intended applications.

Language: Английский

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How does biochar influence soil N cycle? A meta-analysis

Plant and Soil, Journal Year: 2018, Volume and Issue: 426(1-2), P. 211 - 225

Published: March 16, 2018

Language: Английский

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