Article
Engineering, Environmental
Ali Zaker, Samia ben Hammouda, Jie Sun, Xiaolei Wang, Xia Li, Zhi Chen
Summary: Climate change poses a growing threat to civilization, primarily due to the increase in anthropogenic greenhouse gas emissions, particularly CO2. Efforts are being made globally to develop new and affordable strategies for reducing CO2 emissions. Carbon-based materials (CBMs) show promise for industrial applications in CO2 capture, as they are cost-effective, easily regenerated, and capable of physically absorbing significant amounts of CO2. This paper reviews recent progress in understanding the fundamental mechanism of CO2 capture using CBMs and discusses the design and synthesis of various CBMs for efficient CO2 adsorption. While advancements have been made, further research is still needed in this field, and sustainable CO2 capture development is discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Thien S. Nguyen, Nesibe A. Dogan, Haeseong Lim, Cafer T. Yavuz
Summary: The development of porous solid materials with tunable amine content is necessary for efficient CO2 capture, and unifying both sorbents in one system can address regeneration issues.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Environmental Sciences
Jian Wang, Yunlong Zhou, Xiaotian Hu
Summary: Novel amine functionalized ternary composite aerogels were prepared, showing promising performance in CO2 adsorption, especially when doped with acid activation zeolites.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Zheng Wu, Xing-Hao Du, Qian-Feng Zhang, Maria Stromme, Chao Xu
Summary: This study introduces a new technique called solar thermal swing adsorption (STSA) which utilizes intermittent illumination on porous carbon monolith (PCM) sorbents to selectively adsorb and release CO2 during the CO2 capture process. The PCM sorbents have high CO2 adsorption capacity and selectivity, and when combined with vacuum swing adsorption, can achieve a high CO2 capture rate.
Article
Engineering, Chemical
Raheleh Zafari, Fernanda G. Mendonca, R. Tom Baker, Clemence Fauteux-Lefebvre
Summary: Adsorbents made from amine-functionalized cellulose were studied for SO2 capture, showing a significantly higher adsorption capacity compared to pristine nanocrystalline cellulose. The effects of functionalization time, temperature, and amount of amine were assessed, and the adsorption mechanism for SO2 capture was confirmed. The study also investigated the impact of different operating adsorption temperatures and flow rates on the capture capacity and breakthrough time of SO2.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Green & Sustainable Science & Technology
Urooj Kamran, Soo-Jin Park
Summary: This article reviews the application of carbonaceous materials in CO2 adsorption, discusses the impact and role of various modification methods, and summarizes future research challenges and prospects.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Rita Fonseca, Ricardo Vieira, Mariana Sardo, Ildefonso Marin-Montesinos, Luis Mafra
Summary: This study comprehensively investigates the molecular dynamics of different chemisorbed and physisorbed CO2 species in amine-modified silica materials using solid-state NMR. The differences in molecular dynamics between the species correlate well with their interactions with the silica surface.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Zhou Dong, Mohammad Peydayesh, Felix Donat, Tonghui Jin, Ting Li, Christoph R. Muller, Raffaele Mezzenga
Summary: This study develops a method using amyloid fibrils derived from food proteins as solid adsorbents for direct capture of CO2 from the air. The results show that the CO2 sorption properties of the adsorbents depend on the mixing ratio of aminosilane and the type of amyloid fibril. Beta-lactoglobulin fibril-templated aerogels exhibit the highest CO2 adsorption capacity.
Article
Chemistry, Physical
Chia-Hsin Chen, Erika L. Sesti, Jason J. Lee, Frederic Mentink-Vigier, Carsten Sievers, Christopher W. Jones, Sophia E. Hayes
Summary: This spectroscopic study investigates the formation and environments of bicarbonate in solid-amine CO2 sorbent materials under humid carbon capture conditions using tertiary, secondary, and primary amine moieties with mesoporous silica support. The presence of water on the walls of the mesoporous silica support and in the pore or mid-channel significantly influences the generation of bicarbonate in these materials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Jiupeng Zhang, Jing Zuo, Weidong Ai, Jinyi Zhang, Dandan Zhu, Shiding Miao, Cundi Wei
Summary: A novel adsorbent was prepared from coal-gasification fine slag by acid leaching and amine modification for CO2 capture. The FSA-TEPA-20 composite showed excellent CO2 adsorption capacity and cycling stability, outperforming other mesoporous materials. The study provides a new approach for developing high-performance adsorbents from low-cost solid wastes.
APPLIED SURFACE SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
X. Duan, G. Song, G. Lu, Y. Wang, J. Sun, A. Chen, X. Xie
Summary: This review summarizes the preparation methods and performance characteristics of current amine-modified sorbents, compares the differences in adsorption capacity, adsorption kinetics, regeneration energy, and cycling stability. It also analyzes the influencing factors of chemisorption performance and evaluates the technical and economic feasibility of four low-energy CO2 sorbent regeneration routes. Finally, it outlines the future challenges and research interests in the development of industrialized DAC technology.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Thermodynamics
Chao Chen, Huifang Xu, Qingbin Jiang, Zhan Lin
Summary: Silica-supported amine adsorbents have been extensively studied for CO2 capture, but the rational design of silica materials with specific pore structures remains a challenge. This study synthesized ordered silicas with bimodal or trimodal meso-macro porosities as supports for polyethylenimines, showing different CO2 adsorption performance at medium and high amine loading. The research provides insights into factors affecting the CO2 capture performance and guidance for designing high-performance solid amine CO2 adsorbents in the future.
Article
Chemistry, Physical
Yangguan Chen, Jinrui Zhang, Haorui Liu, Xiaoqiong Wang, Shuixia Chen
Summary: Surfactants were added into polyethylenimine (PEI) cryogel to enhance mass transfer and reduce the adsorption temperature, thereby improving the CO2 adsorption capacity and amine efficiency.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Juliana S. A. Carneiro, Giada Innocenti, Hyun June Moon, Yoseph Guta, Laura Proano, Carsten Sievers, Miles A. Sakwa-Novak, Eric W. Ping, Christopher W. Jones
Summary: This study investigates the impact of humidity on the oxidative degradation of a solid supported amine sorbent, poly(ethylenimine) (PEI) supported on Al2O3. Through various analysis techniques, the researchers obtained a comprehensive understanding of the sorbent oxidation process under accelerated conditions, including the identification of major oxidative products and the role of humidity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Energy & Fuels
Hyunho Kim, Jong Yeon Jung, Ki-Heum Park, Praveen Linga, Yutaek Seo, Colin D. Wood
Summary: The study found that amine-infused hydrogel (AIH) particles can efficiently capture CO2 and have a higher CO2 uptake capacity compared to traditional MEA solution. The kinetic performance for CO2 absorption was investigated under different conditions, showing that temperature, mixing, and additives affect the CO2 absorption performance of AIH particles. AIH particles tend to agglomerate without mixing, leading to decreased CO2 absorption capacity, but remain separated and show increased CO2 uptake when mixed with the gas mixture. Additional decane and dodecyltrimethylammonium bromide (DTAB) can alleviate particle coagulation and enhance both CO2 absorption rate and capacity.
Article
Energy & Fuels
May-Suan Lee, Andrew Hoadley, Jim Patel, Seng Lim, Karen Kozielski, Chao'en Li
Summary: This study investigates alternative methods for utilizing solid wastes from ethanol and wine plants. Processes such as combustion and anaerobic digestion were explored, resulting in the production of energy products. The anaerobic digestion of wet distiller's grain with soluble (WDGS) for electricity generation was found to be the most profitable scenario, providing the ethanol plant with significant annual income. Furthermore, an environmental analysis of CO2 emissions revealed that anaerobic digestion of WDGS for heat supply resulted in the largest CO2 abatement.
BIOENERGY RESEARCH
(2023)
Article
Engineering, Chemical
Ding Wei, Qinlan Luo, Tong Ouyang, Qie Liu, Yangqiang Huang, Bo Jin, Hongxia Gao, Xiao Luo, Zhiwu Liang
Summary: The effect of amine chain length on CO2 absorption performance was explored using experimental and theoretical methods. Kinetic models for CO2 absorption based on a base-catalyzed hydration mechanism and a zwitterion mechanism were established, and the accuracy of the models was verified through free energy barrier analysis.
Article
Chemistry, Analytical
Li Cai, Qinhui Wang, Qingang Xiong, Xuerong Wang, Linchen Fu, Luchang Han, Zhiping Wang, Yefeng Zhou
Summary: In this study, a two-dimensional fluidized bed reactor model was established and verified with experimental data, using multiphase CFD simulation method and pyrolysis reaction kinetics. The effects of biomass and nitrogen inlet modes on flow behavior, heat transfer, and pyrolysis reaction were investigated. The results showed that changing the inlet modes could improve the uniformity of particle and temperature distribution and increase the tar yield. The nitrogen inlet mode had a greater impact on the tar yield compared to the biomass inlet mode.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Environmental
Rui Zhang, Ruixi Liu, Francesco Barzagli, Meher Geetika Sanku, Chao 'en Li, Min Xiao
Summary: Mixing different amines is a common method for developing better solvents for CO2 capture. The study investigated CO2 absorption in monoethanolamine (MEA), methyldiethanolamine (MDEA), and their mixtures. The speciation profiles and CO2 loading were analyzed using NMR to understand the competition and coordination between MEA and MDEA in the key reactions for CO2 absorption. The calculated CO2 loading agreed well with experimental data.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Xinwei He, Hang He, Francesco Barzagli, Mohammad Waleed Amer, Chao'en Li, Rui Zhang
Summary: Blending two or more amines has been recognized as an efficient strategy for CO2 capture. Four new dual-amine aqueous blends based on 2-dimethylamino-2-methyl-1-propanol (2DMA2M1P) mixed with different primary and secondary amines were formulated and evaluated. The blends showed appreciable CO2 capture performance and, importantly, better desorption performance than conventional MEA.
Article
Engineering, Chemical
Yunlei Zhao, Bo Jin, Zhineng Zhang, Kun Huang, Yakun Wang, Xiao Luo, Qingjie Guo, Zhiwu Liang
Summary: Using self-templated metal-organic framework (MOF) to develop efficient iron-based oxygen carriers is an effective way, but the effect of metal oxide-support interaction and crystal structure on the reactivity of MOF-derived iron-based materials is still unclear.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Fraz Saeed Butt, Allana Lewis, Riccardo Rea, Nurul A. Mazlan, Ting Chen, Norbert Radacsi, Enzo Mangano, Xianfeng Fan, Yaohao Yang, Shuiqing Yang, Yi Huang
Summary: Global warming is a pressing environmental issue, mainly caused by carbon dioxide (CO2). Various technologies, such as adsorption, cryogenic separation, and sequestration, have been developed for CO2 separation and storage/utilization. Among these, carbon capture using nano-adsorbents shows promise due to their excellent CO2 separation and storage performance. In this study, a facile synthesis method was developed for selective CO2 separation and storage using ZIF-8 hollow nanospheres. The optimized hollow ZIF-8 nanospheres exhibited remarkable CO2 adsorption capability, good CO2 storage capacity, and excellent cyclic adsorption/desorption performance. These findings are important for the development of nanomaterials for future CO2 capture technologies.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Guanchu Lu, Zhe Wang, Zongyang Yue, Wenjing Wei, Yi Huang, Xiaolei Zhang, Xianfeng Fan
Summary: The high energy consumption of aqueous amine absorbents hinders their global deployment for carbon dioxide capture. Non-aqueous amine systems provide energy-efficient alternatives, but are prone to precipitation during the absorption process. This study combines experimental and theoretical approaches to investigate the factors influencing precipitation and the effectiveness of different solvents. Based on these findings, novel non-aqueous absorbents have been developed to improve CO2 absorption and desorption performance, resulting in reduced energy consumption.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Delong Feng, Han Li, Luchang Han, Haizhuan Yuan, Yefeng Zhou
Summary: This study investigates the effect of liquid addition on the gas-solid flow characteristics in a spouted fluidized bed reactor using a coupled computational fluid dynamics-discrete element method. The study proposes a liquid bridge model that includes both capillary force and viscous force and explores the microscopic mechanism of liquid action. The results show that increasing liquid content and viscosity strengthen the liquid bridges between particles, with liquid content leading to an increase in liquid bridge capillary force and liquid viscosity leading to an increase in viscous force and a decrease in capillary force. Additionally, both the number of liquid bridges and contact points between particles increase with increasing liquid content, while they decrease with increasing liquid viscosity. The study also reveals that increasing liquid content and viscosity reduce the bed expansion ratio and bubble phase volume. These findings provide important references for research on liquid-containing systems.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Review
Engineering, Chemical
Yufan Li, Francesco Barzagli, Peng Liu, Xiaoan Zhang, Zhao Yang, Min Xiao, Yangqiang Huang, Xiao Luo, Chao'en Li, He'an Luo, Rui Zhang
Summary: Stainless steel is commonly used for high-pressure hydrogen storage, but hydrogen can cause embrittlement, reducing the lifetime and hindering the development of the hydrogen industry. Adding hydrogen permeation barrier coatings to stainless steel surface is an effective way to delay or prevent hydrogen permeation. This review investigates the mechanism and working principle of hydrogen permeation, classifies hydrogen barrier coatings, analyzes their influence factors and defects, and summarizes preparation techniques and evaluation methods. Polymer composites strengthened by graphene and other materials are considered more competitive.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Environmental Sciences
Mengyu Cao, Shibo Shao, Wenxi Ji, Xianfeng Fan
Summary: Carbon-doped TiN nanoparticles exhibited remarkable plasmonic photocatalytic performance for dye degradation under visible light. The catalyst showed much higher reaction rate constant compared to benchmark catalysts. The doping concentration of carbon and the crystal size of TiN nanoparticles were crucial factors governing the plasmonic photocatalytic activity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Nanoscience & Nanotechnology
Yuxiang Xue, Xinyao Ma, Xue Feng, Sam Roberts, Guangyu Zhu, Yi Huang, Xianfeng Fan, Jun Fan, Xianfeng Chen
Summary: Gold nanostructures, especially gold nanobipyramids, have gained significant attention due to their unique physical and optical properties. However, synthesizing and purifying homogeneous gold nanobipyramids is a challenging task.
ACS APPLIED NANO MATERIALS
(2023)
Article
Energy & Fuels
Rui Zhang, Haonan Liu, Ruixi Liu, Yingjie Niu, Luning Yang, Francesco Barzagli, Chao'en Li, Min Xiao
Summary: This study investigates the CO2 absorption performance of amine blends and elucidates the reaction mechanisms and species formed during CO2 capture using experimental methods and 13C NMR spectroscopy. An excess property model is introduced to accurately predict CO2 equilibrium solubility.
GAS SCIENCE AND ENGINEERING
(2023)
Review
Green & Sustainable Science & Technology
Ting Li, Qian Yu, Francesco Barzagli, Chao'en Li, Mingrui Che, Zhien Zhang, Rui Zhang
Summary: High energy penalty in amine-based solvent regeneration process is a critical challenge in industrial application for post-combustion CO2 capture technology. Recently, efforts have been made to lower the energy requirement by using efficient blended amine systems or adding solid acid catalysts. This review discusses the recent advances in applying various catalysts to reduce the energy cost in solvent regeneration process, including the performance, analytical techniques, and structure-activity relationships of catalysts. Recommendations for assembling high-quality catalysts and their industrial implication are also provided.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2023)
Article
Energy & Fuels
Shitong Fang, Houfan Du, Tao Yan, Keyu Chen, Zhiyuan Li, Xiaoqing Ma, Zhihui Lai, Shengxi Zhou
Summary: This paper proposes a new type of nonlinear VIV energy harvester (ANVEH) that compensates for the decrease in peak energy output at low wind speeds by introducing an auxiliary structure. Theoretical and experimental results show that ANVEH performs better than traditional nonlinear VIV energy harvesters under various system parameter variations.
Article
Energy & Fuels
Wei Jiang, Shuo Zhang, Teng Wang, Yufei Zhang, Aimin Sha, Jingjing Xiao, Dongdong Yuan
Summary: A standardized method was developed to evaluate the availability of solar energy resources in road areas, which combined the Analytic Hierarchy Process (AHP) and the Geographic Information System (GIS). By analyzing critical factors and using a multi-indicator evaluation method, the method accurately evaluated the utilization of solar energy resources and guided the optimal location selection for road photovoltaic (PV) projects. The results provided guidance for the application of road PV projects and site selection for route corridors worldwide, promoting the integration of transportation and energy.
Article
Energy & Fuels
Chang Liu, Jacob A. Wrubel, Elliot Padgett, Guido Bender
Summary: The study investigates the effects of coating defects on the performance of the anode porous transport layer (PTL) in water electrolyzers. The results show that an increasing fraction of uncoated regions on the PTL leads to decreased cell performance, with continuous uncoated regions having a more severe impact compared to multiple thin uncoated strips.
Article
Energy & Fuels
Marcos Tostado-Veliz, Xiaolong Jin, Rohit Bhakar, Francisco Jurado
Summary: In this paper, a coordinated charging price mechanism for clusters of parking lots is proposed. The research shows that enabling vehicle-to-grid characteristics can bring significant economic benefits for users and the cluster coordinator, and vehicle-to-grid impacts noticeably on the risk-averse character of the uncertainty-aware strategies. The developed pricing mechanism can reduce the cost for users, avoiding to directly translate the energy cost to charging points.
Article
Energy & Fuels
Duan Kang
Summary: Building an energy superpower is a key strategy for China and a long-term goal for other countries. This study proposes an evaluation system and index for measuring energy superpower, and finds that China has significantly improved its ranking over the past 21 years, surpassing other countries.
Article
Energy & Fuels
Fucheng Deng, Yifei Wang, Xiaosen Li, Gang Li, Yi Wang, Bin Huang
Summary: This study investigated the synergistic blockage mechanism of sand and hydrate in gravel filling layer and the evolution of permeability in the layer. Experimental models and modified permeability models were established to analyze the effects of sand particles and hydrate formation on permeability. The study provided valuable insights for the safe and efficient exploitation of hydrate reservoirs.
Article
Energy & Fuels
Hao Wang, Xiwen Chen, Natan Vital, Edward Duffy, Abolfazl Razi
Summary: This study proposes a HVAC energy optimization model based on deep reinforcement learning algorithm. It achieves 37% energy savings and ensures thermal comfort for open office buildings. The model has a low complexity, uses a few controllable factors, and has a short training time with good generalizability.
Article
Energy & Fuels
Moyue Cong, Yongzhuo Gao, Weidong Wang, Long He, Xiwang Mao, Yi Long, Wei Dong
Summary: This study introduces a multi-strategy ultra-wideband energy harvesting device that achieves high power output without the need for external power input. By utilizing asymmetry, stagger array, magnetic coupling, and nonlinearity strategies, the device maintains a stable output voltage and high power density output at non-resonant frequencies. Temperature and humidity monitoring are performed using Bluetooth sensors to adaptively assess the device.
Article
Energy & Fuels
Tianshu Dong, Xiudong Duan, Yuanyuan Huang, Danji Huang, Yingdong Luo, Ziyu Liu, Xiaomeng Ai, Jiakun Fang, Chaolong Song
Summary: Electrochemical water splitting is crucial for hydrogen production, and improving the hydrogen separation rate from the electrode is essential for enhancing water electrolyzer performance. However, issues such as air bubble adhesion to the electrode plate hinder the process. Therefore, a methodology to investigate the two-phase flow within the electrolyzer is in high demand. This study proposes using a microfluidic system as a simulator for the electrolyzer and optimizing the two-phase flow by manipulating the micro-structure of the flow.
Article
Energy & Fuels
Shuo Han, Yifan Yuan, Mengjiao He, Ziwen Zhao, Beibei Xu, Diyi Chen, Jakub Jurasz
Summary: Giving full play to the flexibility of hydropower and integrating more variable renewable energy is of great significance for accelerating the transformation of China's power energy system. This study proposes a novel day-ahead scheduling model that considers the flexibility limited by irregular vibration zones (VZs) and the probability of flexibility shortage in a hydropower-variable renewable energy hybrid generation system. The model is applied to a real hydropower station and effectively improves the flexibility supply capacity of hydropower, especially during heavy load demand in flood season.
Article
Energy & Fuels
Zhen Wang, Kangqi Fan, Shizhong Zhao, Shuxin Wu, Xuan Zhang, Kangjia Zhai, Zhiqi Li, Hua He
Summary: This study developed a high-performance rotary energy harvester (AI-REH) inspired by archery, which efficiently accumulates and releases ultralow-frequency vibration energy. By utilizing a magnetic coupling strategy and an accumulator spring, the AI-REH achieves significantly accelerated rotor speeds and enhanced electric outputs.
Article
Energy & Fuels
Yi Yang, Qianyi Xing, Kang Wang, Caihong Li, Jianzhou Wang, Xiaojia Huang
Summary: In this study, a novel hybrid Quantile Regression (QR) model is proposed for Probabilistic Load Forecasting (PLF). The model integrates causal dilated convolution, residual connection, and Bidirectional Long Short-Term Memory (BiLSTM) for multi-scale feature extraction. In addition, a Combined Probabilistic Load Forecasting System (CPLFS) is proposed to overcome the inherent flaws of relying on a single model. Simulation results show that the hybrid QR outperforms traditional models and CPLFS exceeds the best benchmarks in terms of prediction accuracy and stability.
Article
Energy & Fuels
Wen-Jiang Zou, Young-Bae Kim, Seunghun Jung
Summary: This paper proposes a dynamic prediction model for capacity fade in vanadium redox flow batteries (VRFBs). The model accurately predicts changes in electrolyte volume and capacity fade, enhancing the competitiveness of VRFBs in energy storage applications.
Article
Energy & Fuels
Yuechao Ma, Shengtie Wang, Guangchen Liu, Guizhen Tian, Jianwei Zhang, Ruiming Liu
Summary: This paper focuses on the balance of state of charge (SOC) among multiple battery energy storage units (MBESUs) and bus voltage balance in an islanded bipolar DC microgrid. A SOC automatic balancing strategy is proposed considering the energy flow relationship and utilizing the adaptive virtual resistance algorithm. The simulation results demonstrate the effectiveness of the proposed strategy in achieving SOC balancing and decreasing bus voltage unbalance.
Article
Energy & Fuels
Raad Z. Homod, Basil Sh. Munahi, Hayder Ibrahim Mohammed, Musatafa Abbas Abbood Albadr, Aissa Abderrahmane, Jasim M. Mahdi, Mohamed Bechir Ben Hamida, Bilal Naji Alhasnawi, A. S. Albahri, Hussein Togun, Umar F. Alqsair, Zaher Mundher Yaseen
Summary: In this study, the control problem of the multiple-boiler system (MBS) is formulated as a dynamic Markov decision process and a deep clustering reinforcement learning approach is applied to obtain the optimal control policy. The proposed strategy, based on bang-bang action, shows superior response and achieves more than 32% energy saving compared to conventional fixed parameter controllers under dynamic indoor/outdoor actual conditions.
