Article
Chemistry, Multidisciplinary
Hochan Chang, Elise B. Gilcher, George W. Huber, James A. Dumesic
Summary: Functional polyurethanes and polyesters can be synthesized from biomass-derived 5-hydroxymethyl furfural (HMF)-acetone-HMF (HAH) monomers, which can be selectively hydrogenated to produce partially-hydrogenated (PHAH) and fully-hydrogenated (FHAH). PHAH provides diene binding sites for Diels-Alder reactions, while FHAH leads to energy-dissipating rubbers with branched structures.
Article
Multidisciplinary Sciences
Alexander Ahrens, Andreas Bonde, Hongwei Sun, Nina Kolln Wittig, Hans Christian D. Hammershoj, Gabriel Martins Ferreira Batista, Andreas Sommerfeldt, Simon Frolich, Henrik Birkedal, Troels Skrydstrup
Summary: Fibre-reinforced epoxy composites are widely used in load-bearing applications due to their light weight and high durability. However, the lack of viable recycling strategies for these composites has led to their disposal in landfills. This study presents a chemical recycling approach that allows for the recovery of polymer building blocks and intact fibres from epoxy composites.
Article
Chemistry, Multidisciplinary
Shuang Chen, Yingying Xin, Chen Zhao
Summary: The study focused on the multispectroscopic analysis in the synthesis of lignin-based biophenolic resins, revealing that hydrogenolyzing lignin to phenolic oil can increase phenolic hydroxyl group content for higher thermal stability and rigidity in the resulting phenolic resin.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Yixin Zhao, Rui Xu, Yao Xiao, Hailou Wang, Wei Zhang, Guangyu Zhang
Summary: The study involved modifying epoxy resin with phenolic to improve mechanical properties at room temperature, but it resulted in decreased mechanical performance at high temperatures, with a more severe impact as phenolic content increased. Thermogravimetric analyses indicated that phenolic modification led to the formation of unstable molecules at high temperatures, causing an earlier weight loss compared to unmodified epoxy resin.
Article
Chemistry, Multidisciplinary
Nadim Eid, Bruno Ameduri, Bernard Boutevin
Summary: The discovery of huge petroleum reserves in the 19th century drove the industrial revolution but also led to concerns over global warming and environmental issues, prompting researchers to seek biorenewable monomers and more sustainable polymer production. Natural feedstocks such as cellulose and hemicellulose have been explored as sources for epoxy resin synthesis, with an aim to replace phthalic moieties in polyethylene terephthalate. The study highlights advancements in preparing diamines and diepoxy monomers from furanic sources, emphasizing the potential of biobased monomers as substitutes for nonrenewable ones in epoxy resin production.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Minjie Shen, Megan L. Robertson
Summary: The research shows that biobased epoxy resins undergo accelerated hydrolytic degradation in acidic solutions, providing a route for end-of-life management of thermoset waste. A solid-state reaction order model can predict the remaining mass fraction as a function of exposure time.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Polymer Science
Amandine L. Flourat, Mattia Annatelli, Sami Fadlallah, Fabio Arico, Florent Allais
Summary: A new class of furanic alpha,omega-dienes was synthesized using cellulose-derived starting material, and their properties in acyclic diene metathesis polymerization were investigated. The resulting biobased polyethers showed high molecular weights and good thermal stability, with low glass transition temperatures. The use of green solvents and copolymerization experiments were explored to improve the performance of the polyethers.
Article
Chemistry, Multidisciplinary
Yuan Jiang, Jie Yun, Xiangcheng Pan
Summary: The rapid depletion of oil reserves has increased interest in researching biobased polymers derived from renewable resources. Furan-based compounds, due to their aromatic characteristics and sustainability, are considered suitable replacements for petro-sourced chemicals. This study presents a mild and scalable synthesis of furan-based diepoxide monomers from readily available 5-hydroxymethylfurfural (HMF) and furfural. Various diamines were used as curing agents, resulting in a series of biobased epoxy/amine systems. Thermal and mechanical evaluation demonstrated that the synthetic furan-based epoxy resins have the potential to complement current phenyl-based polymer materials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Energy & Fuels
Mahsan Basafa, Kelly Hawboldt
Summary: Residues from biomass processing/harvesting can be converted to high-value chemicals and fuels through pyrolysis. Pyrolysis oils derived from lignocellulosic biomass, particularly hemp residues, have potential as sources of bio-phenols. The extraction and recovery of phenolic compounds from pyrolysis oils require further investigation for optimizing pre-treatment, extraction, and analytical techniques. Considerable progress has been made in producing cost-effective renewable phenolic resins, but challenges remain in achieving satisfactory quality and low cost.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Review
Materials Science, Multidisciplinary
Xiaoqian Mi, Nuo Liang, Haifeng Xu, Juan Wu, Yu Jiang, Bei Nie, Daohong Zhang
Summary: This review provides an up-to-date overview of toughening methods and mechanisms for epoxy resins, as well as guidance for the sustainable development of epoxy resins in versatile high-tech fields.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Polymer Science
Wei Wei, Haolan Gou, Xin Sun, Xiaoma Fei, Xiaojie Li, Xiaoya Liu
Summary: HPBI is a thermal latent curing accelerator with long storage stability and high curing activity at high temperatures. The intramolecular hydrogen bond of HPBI provides inertness towards resins at room temperature, while releasing high activity pyridine-type nitrogen at elevated temperatures to accelerate the curing process of epoxy/phenolic resins. The thermosets from HPBI exhibit comparable mechanical and thermal properties with common curing accelerators, showing great potential for application in the electronic packaging field.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Materials Science, Multidisciplinary
Filipa A. M. M. Goncalves, Marta Santos, Teresa Cernadas, Paula Ferreira, Patricia Alves
Summary: The urgent need to replace fossil resource-based products has led to a search for more sustainable materials to reduce polymer pollution, solve economic and environmental issues. This review highlights the significant advances in epoxy resins (ERs) over the past decade, focusing on the replacement of bisphenol A (BPA) and the production of renewable-based ERs with good properties. Emphasis is also given to the synthesis of ERs from renewable sources and the use of new biobased curing agents and biofillers to enhance the biocharacter of the ERs.
INTERNATIONAL MATERIALS REVIEWS
(2022)
Article
Polymer Science
Ping Sen Choong, Ning Xi Chong, Eric Kwok Wai Tam, Abdul Majeed Seayad, Jayasree Seayad, Satyasankar Jana
Summary: This article presents the development of bio-/CO2-derived nonisocyanate polyurethane (NIPU) coatings, which have high levels of renewable carbon and self-healing properties through three different healing mechanisms: thermo-healing, moisture-healing, and self-healing at room temperature. The coatings feature a unique combination of recyclability and intrinsic healing capabilities, making them ideal for sustainable and functional applications.
Article
Polymer Science
Hong Song, Chaofan Liu, Daxiang Gui, Ye Sha, Qingping Song, Puyou Jia, Jiangang Gao, Ying Lin
Summary: The study develops sustainable and functional epoxy resins from renewable biomass, specifically chitosan and tung oil, with proton conduction properties. By preparing tung oil-based epoxy monomers and chitosan-based chain transfer agent, a reversible addition-fragmentation chain transfer (RAFT) polymerization is conducted on chitosan using epoxy monomers to obtain elastic graft copolymer with rigid backbone and flexible side chains. Biomass-based epoxy resins with dual network structure can be obtained after curing with citric acid, and their thermal and mechanical properties can be controlled by adjusting the cross-linker content. The abundant amino groups in chitosan enhance the strength and proton conductivity of the epoxy resins. Overall, the epoxy resins show high tensile strength and comparable proton conduction, offering a new approach for designing green functional materials with potential applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Ying-Feng He, Ssu-Ting Huang, Chia-Hao Chen, Yu-Hsuan Chang, Chi-Chung Hua, Ping-Ray Chiang, Jien-Yi Weng
Summary: Four representative bisurea molecules were synthesized and loaded into resins for anti-sagging applications. Detailed characterization revealed that the structural features of the bisurea molecules significantly impact their thixotropic and anti-sagging performances. The importance of resolving detailed structural features to establish a full structure-performance relationship is emphasized for similar material systems and applications.
Article
Green & Sustainable Science & Technology
M. Genovese, F. Piraino, P. Fragiacomo
Summary: This research proposes the concept of a hydrogen valley in southern Italy, where hydrogen is produced centrally and delivered via fuel cell hybrid trains to refueling stations, providing transportation services. The analysis from both technical and economic perspectives shows that the cost of hydrogen and energy efficiency reached competitive levels, and hydrogen rail transport offers significant benefits in terms of emissions reduction and economic gains compared to conventional diesel trains and fully electric trains.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Miaomiao Liu, Payam Nejat, Pinlu Cao, Carlos Jimenez-Bescos, John Kaiser Calautit
Summary: This article provides a critical review of the performance of windcatchers, pointing out the current research gaps and issues, and proposing directions for further investigation and market prospects.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Solomon Boadu, Ebenezer Otoo
Summary: Despite Africa's vast energy resources, including wind energy, the continent faces challenges in developing its wind energy industry. Northern African countries and South Africa currently dominate the wind energy sector in Africa. To uplift Africa's socio-economic status, strong political will, supportive policies, and institutional frameworks are needed to drive the development of wind energy and overcome existing challenges.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
E. K. Grubbs, S. M. Gruss, V. Z. Schull, M. J. Gosney, M. V. Mickelbart, S. Brouder, M. W. Gitau, P. Bermel, M. R. Tuinstra, R. Agrawal
Summary: As the global population grows, the demand for food, energy, and water will increase significantly. However, limited land availability and competition for solar resources pose challenges to resource generation technologies. In the United States, both agriculture and solar energy production have adopted densification schemes to improve yields and energy output per unit of land. This research proposes an Agrivoltaic food and energy coproduction architecture that optimizes power generation while maintaining crop productivity by implementing ideal anti-tracking during critical growth periods. This technology offers a viable pathway for widespread solar implementation throughout the contiguous United States.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Han Shao, Rui Henriques, Hugo Morais, Elisabetta Tedeschi
Summary: The integration of offshore wind energy into the electric grid provides opportunities in terms of environmental sustainability and cost efficiency, but poses challenges to power quality. This survey offers a deeper understanding of disturbance detection and classification tools, exploring root causes, disturbance locations, and algorithmic solutions. It highlights synchronized waveform measurement and discusses evaluation metrics for detection and classification algorithms. Additionally, a novel system-wide monitoring framework is proposed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Eleni Davidson, Yair Schwartz, Joe Williams, Dejan Mumovic
Summary: A continued upward trend in global greenhouse gas emissions poses risks to global infrastructure and built assets. Maintaining high indoor environmental quality standards is a challenge for higher education institutions under future climates. Passive cooling mechanisms may be insufficient to tolerate predicted temperature increases. Different building typologies have varying energy demand projections.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Kexin Pang, Jian Zhou, Stamatis Tsianikas, David W. Coit, Yizhong Ma
Summary: This study proposes a new framework for long-term microgrid expansion planning, using deep reinforcement learning method to consider various uncertainties and constraints. The framework aims to enhance the effectiveness of microgrid expansion planning from the perspectives of economy, resilience, and greenhouse gas emission reduction.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Jun Zhao, Kangyin Dong, Xiucheng Dong
Summary: The continuous growth of global electricity penetration has provided modern energy for alleviating energy poverty, but its impact on carbon neutrality has been overlooked. The research reveals that clean electricity from traditional fossil energy and renewable energy has a positive influence on the greenhouse effect. Eradicating energy poverty can effectively alleviate the greenhouse effect, especially in non-Belt and Road Initiative (B&RI) nations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Hossein Shahbeik, Hamed Kazemi Shariat Panahi, Mona Dehhaghi, Gilles J. Guillemin, Alireza Fallahi, Homa Hosseinzadeh-Bandbafha, Hamid Amiri, Mohammad Rehan, Deepak Raikwar, Hannes Latine, Bruno Pandalone, Benyamin Khoshnevisan, Christian Sonne, Luigi Vaccaro, Abdul-Sattar Nizami, Vijai Kumar Gupta, Su Shiung Lam, Junting Pan, Rafael Luque, Bert Sels, Wanxi Peng, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This review explores the production of biocrude oil from biomass feedstocks through the process of hydrothermal liquefaction (HTL). It discusses the impact of process parameters on the quality, quantity, cost, and environmental impacts of biofuels. The review also highlights the challenges and prospects for the future development of biocrude oil.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Meysam Majidi Nezhad, Mehdi Neshat, Georgios Sylaios, Davide Astiaso Garcia
Summary: Digital twins promise innovation for the marine renewable energy sector by using modern technological advances and the existing maritime knowledge frameworks. This research presents critical aspects of digital twin implementation challenges in marine energy digitalization approaches that use and combine data systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Yeganeh Sharifian, Hamdi Abdi
Summary: This paper discusses the background and objectives of the multi-area economic dispatch problem, as well as various techniques and methods applied in this field. It also covers comprehensive formulations of the problem and important issues in the field of probabilistic MAED, along with some related concepts and suggestions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
J. G. B. Churchill, V. B. Borugadda, A. K. Dalai
Summary: The increasing global energy demand and the need to reduce fossil fuel reliance have created a demand for renewable and sustainable fuel sources. This review explores the potential of tall oil, a by-product of the pulping industry, as a feedstock for biofuels. The review provides an overview of tall oil production, purification, and treatment, and investigates recent trends and barriers towards tall oil-derived biofuels.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
David C. Broadstock, Xiangnan Wang
Summary: This study provides a general review of research on district cooling, identifying key topics and themes and highlighting potential research priorities for future studies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
L. Scharnhorst, D. Sloot, N. Lehmann, A. Ardone, W. Fichtner
Summary: This study investigates and analyzes the barriers to demand response in industrial and commercial sectors, highlighting their significance. Concerns about diminished product quality, disruptions to production processes, human resource management, and revenue uncertainty are identified as the most frequently cited barriers. Overcoming these barriers requires bridging knowledge gaps, allocating sufficient resources, and adapting external incentives and policies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Tong Feng, Yuechi Sun, Yating Shi, Jie Ma, Chunmei Feng, Zhenni Chen
Summary: Air pollution is a significant global challenge, and policymakers have implemented policies to reduce it. Evaluating the effectiveness of these policies is critical, and our study reveals trends and gaps in air pollution policy research. We found that research has shifted from focusing solely on air pollutants to including methodologies, policies, and health implications. China has emerged as a major contributor in this field of research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)