Kategorie: New Publications

Pereira & Gamboa (2023): In situ carbon storage potential in a buried volcano

Ricardo Pereira, Davide Gamboa IN: Geology, https://doi.org/10.1130/G50965.1

In situ mineral carbonation in porous and permeable mafic and ultramafic volcanic rocks is proposed to be a promising process that can contribute toward safe and permanent CO2 sequestration. Here,the authors investigated a partially buried Late Cretaceous composite volcano located offshore the central West Iberian margin as a proxy for potential in situ mineral carbonation in volcanic edifices on continental margins worldwide. Based on seismic data, geochemistry, and petrophysical properties, deterministic scenarios for permanent carbon storage were estimated.


Xiang et al. (2023): Synthesis of stable single-crystalline carbon dioxide clathrate powder by pressure swing crystallization

Zhiling Xiang, Congyan Liu, Chunhui Chen, Xin Xiao, Thien S. Nguyen, Cafer T. Yavuz, Qiang Xu, Bo Liu IN: Cell Reports Physical Science 4, 101383, https://doi.org/10.1016/j.xcrp.2023.101383

Here, the authors report the pressure swing crystallization of CO2 in a single-crystalline guanidinium sulfate-based clathrate salt under practical conditions of 52 kPa and 298 K, with a high CO2 density (0.252 g cm−3) and capacity (17 wt %). The captured CO2 is released as a pure stream through moderate means of pressure or temperature stimulation, all while the desorbed Gua2SO4 is ready for another cycle. The clathrate is selective exclusively to CO2 even in the presence of common flue gas components, such as water vapor and N2, owing to the specific electrostatic interaction between the CO2 and guanidinium cations. The mechanism unraveled through single-crystal studies is distinctively different from physisorption or chemisorption, opening up a promising venue for future carbon capture and storage technologies through rapid CO2 solidification using an abundant salt.


La Plante et al. (2023): Electrolytic Seawater Mineralization and the Mass Balances That Demonstrate Carbon Dioxide Removal

Erika Callagon La Plante, Xin Chen, Steven Bustillos, Arnaud Bouissonnie, Thomas Traynor, David Jassby, Lorenzo Corsini, Dante A. Simonetti, Gaurav N. Sant IN: ACS EST Engg., https://doi.org/10.1021/acsestengg.3c00004

The authors present the mass balances associated with carbon dioxide (CO2) removal (CDR) using seawater as both the source of reactants and as the reaction medium via electrolysis following the “Equatic” (formerly known as “SeaChange”) process. This process involves the application of an electric overpotential that splits water to form H+ and OH ions, producing acidity and alkalinity, i.e., in addition to gaseous coproducts, at the anode and cathode, respectively. Geochemical simulations quantify the extents of net CO2 removal including the dependencies on the process configuration. It is furthermore indicated that the efficiency of realkalinization of the acidic anolyte using alkaline solids depends on their acid neutralization capacity and dissolution reactivity.


Nature – Rosentreter et al. (2023): Coastal vegetation and estuaries are collectively a greenhouse gas sink

Judith A. Rosentreter, Goulven G. Laruelle, Hermann W. Bange, Thomas S. Bianchi, Julius J. M. Busecke, Wei-Jun Cai, Bradley D. Eyre, Inke Forbrich, Eun Young Kwon, Taylor Maavara, Nils Moosdorf, Raymond G. Najjar, V. V. S. S. Sarma, Bryce Van Dam, Pierre Regnier IN: Nat. Clim. Chang.; https://doi.org/10.1038/s41558-023-01682-9

Coastal ecosystems release or absorb carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), but the net effects of these ecosystems on the radiative balance remain unknown. The authors compiled a dataset of observations from 738 sites from studies published between 1975 and 2020 to quantify CO2, CH4 and N2O fluxes in estuaries and coastal vegetation in ten global regions.


Wei et al. (2023): Can ocean carbon sink trading achieve economic and environmental benefits? Simulation based on DICE-DSGE model

Zhenhao Wei, Xuzhao Jiang, Zhibo Zhao, Wenli Xu, Lingyi Guo, Qiaoyu Zheng IN: Environ Sci Pollut Res, https://doi.org/10.1007/s11356-023-27435-x

Low-carbon development requires joint efforts in terms of “carbon reduction” and “carbon sink increase.” This study thus proposes a DICE-DSGE model for exploring the environmental and economic benefits of ocean carbon sinks and provides policy suggestions for marine economic development and carbon emission policy choices.


Science – Roebroek et al. (2023): Releasing global forests from human management: How much more carbon could be stored?

Caspar T. J. Roebroek, Gregory Duveiller, Sonia I. Seneviratne, Edouard L. Davin, Alessandro Cescatti IN: Science, Vol 380 (6646), pp. 749-753, DOI: 10.1126/science.add5878

The authors integrated global maps of forest biomass and management with machine learning to show that by removing human intervention, under current climatic conditions and carbon dioxide (CO2) concentration, existing global forests could increase their aboveground biomass by up to 44.1 (error range: 21.0 to 63.0) petagrams of carbon. This is an increase of 15 to 16% over current levels, equating to about 4 years of current anthropogenic CO2 emissions.


Prairie et al. (2023): Restoring particulate and mineral-associated organic carbon through regenerative agriculture

Aaron M. Prairie, Alison E. King, M. Francesca Cotrufo IN: PNAS, https://doi.org/10.1073/pnas.2217481120

To better understand soil organic carbon (SOC ) formation and persistence, the authors separate it into two distinct forms, particulate organic carbon (POC) and mineral associated (MAOC). This study presents results from a global meta-analysis on the response of SOC, POC, and MAOC, to regenerative agricultural practices including no-till, cropping system intensification, and integrated crop–livestock (ICL). The authors found that regenerative practices increased both POC and MAOC, thus improving soil health and promoting long-term carbon storage.


Denny et al. (2023): Carbon Farming: Nature-Based Solutions in Brazil

Danielle Mendes Thame Denny, Carlos Eduardo Pellegrino Cerri, Maurício Roberto Cherubin, Heloisa Lee Burnquist IN: Green and Low-Carbon Economy, https://doi.org/10.47852/bonviewGLCE3202887

The Research Centre for Greenhouse Gas Innovation, which was created in 2016, in its last renewal in 2021, established the first nationwide nature-based solutions empirical data collection from the seven Brazilian biomes, on forestry, pasture, and agriculture, more specifically researching the role of agriculture for carbon sequestration and the possibilities to implement low emissions pastures.


Sanchez et al. (2023): The Role of Direct Air Capture in EU’s Decarbonisation and Associated Carbon Intensity for Synthetic Fuels Production

Rocio Gonzalez SanchezAnatoli Chatzipanagi, Rocio Gonzalez SanchezAnatoli Chatzipanagi IN: Econ Papers, https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:9:p:3881-:d:1138804

Given the high expectations placed on DAC for future decarbonisation, this study presents an extensive review of DAC technologies, exploring a number of techno-economic aspects, including an updated collection of the current and planned DAC projects around the world. A dedicated analysis focused on the production of synthetic methane, methanol, and diesel from DAC and electrolytic hydrogen in the European Union (EU) is also performed, where the carbon footprint is analysed for different scenarios and energy sources.


Choi et al. (2023): Electrochemical direct CO2 capture technology using redox-active organic molecules to achieve carbon-neutrality

Gwan Hyun Choi, Hyun Jun Song, Seolhwa Lee, Jeong Yoon Kim, Myoung-Woon Moon, Pil J. Yoo IN: Nano Energy 112, 108512, https://doi.org/10.1016/j.nanoen.2023.108512

An alternative approach is electrochemical direct carbon capture (EDCC), which allows for the capture of CO2 from diluted sources such as direct air capture (DAC) or direct ocean capture (DOC), ultimately resulting in net-zero carbon emissions. In this review, the authors discuss recent advancements in EDCC technology and their potential for future applications, especially using organic active materials. They provide an overview of the fundamentals of EDCC and practical strategies for demonstrating an EDCC system, including molecular design, electrolyte selection, and device configuration. The authors also delve into design strategies for potential redox-active organic sorbents, with a particular emphasis on understanding currently utilized material candidates from other electrochemical applications and density functional theory (DFT) calculation-guided material selection in the design principle of EDCC.