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Recycling of Aluminosilicate-Based Solid Wastes through Alkali-Activation: Preparation, Characterization, and Challenges

Feng, Lichao (author), Yi, Shengjie (author), Zhao, Shuyuan (author), Zhong, Qiucheng (author), Ren, Feirong (author), Liu, C. (author), Zhang, Y. (author), Wang, Wenshou (author), Li, Zhenming (author)

Recycling aluminosilicate-based solid wastes is imperative to realize the sustainable development of constructions. By using alkali activation technology, aluminosilicate-based solid wastes, such as furnace slag, fly ash, red mud, and most of the bio-ashes, can be turned into alternative binder materials to Portland cement to reduce the carbon...

review 2024

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Effect of microporous layer structural parameters on heat and mass transfer in proton exchange membrane fuel cells

Zhang, Zhenya (author), Mao, Jia (author), Wei, Houyu (author), Cheng, Chuanxiao (author), Liu, Zhengxuan (author)

Proton exchange membrane fuel cells offer promising clean energy solutions for various applications. However, their performance relies heavily on the properties of the microporous layer, which plays a crucial role in transporting and distributing the components in the fuel cell. To date, the potential for optimising the microporous layer...

journal article 2024

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Unraveling the hydrogen sulfide aging mechanism on electrical-thermal–mechanical property degradation of sintered nanocopper interconnects used in power electronics packaging

Chen, Wei (author), Liu, Xu (author), Hu, D. (author), Liu, X. (author), Zhu, Xi (author), Fan, Xuejun (author), Zhang, Kouchi (author), Fan, J. (author)

During operation in environments containing hydrogen sulfide (H₂S), such as in offshore and coastal environments, sintered nanoCu in power electronics is susceptible to degradation caused by corrosion. In this study, experimental and molecular dynamics (MD) simulation analyses were conducted to investigate the evolution and...

journal article 2024

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Role of thermodynamic relaxation on effectiveness of recycling agents on properties of aged bitumen

Ren, S. (author), Liu, X. (author), Erkens, S. (author)

The low-temperature relaxation and fatigue cracking performance are two essential aspects in estimating the rejuvenation efficiency of recycling agents (RAs). This study aims to fundamentally investigate the effects of recycling agent type/dosage and aging degree of bitumen on thermodynamic and rheological properties of rejuvenated bitumen at...

journal article 2024

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General Optimal Trajectory Planning: Enabling Autonomous Vehicles with the Principle of Least Action

Huang, H. (author), Liu, Yicong (author), Liu, Jinxin (author), Yang, Q. (author), Wang, Jianqiang (author), Abbink, D.A. (author), Zgonnikov, A. (author)

This study presents a general optimal trajectory planning (GOTP) framework for autonomous vehicles (AVs) that can effectively avoid obstacles and guide AVs to complete driving tasks safely and efficiently. Firstly, we employ the fifth-order Bezier curve to generate and smooth the reference path along the road centerline. Cartesian coordinates...

journal article 2024

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A resilience assessment framework for complex engineered systems using graphical evaluation and review technique (GERT)

Geng, S. (author), Yang, M. (author), Mitici, Mihaela (author), Liu, Sifeng (author)

System resilience characterizes the capability of maintaining the required functionality under disruptions, which is of great significance in evaluating the productivity and safety of complex engineered systems. Although most studies conduct resilience assessment from qualitative and quantitative perspectives, system functionality that reflects...

journal article 2023

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Heavily boron-doped diamond grown on scalable heteroepitaxial quasi-substrates: A promising single crystal material for electrochemical sensing applications

Liu, Z. (author), Baluchová, S. (author), Frota Sartori, A. (author), Li, Z. (author), Gonzalez Garcia, Y. (author), Schreck, Matthias (author), Buijnsters, J.G. (author)

In this work, three distinct heteroepitaxial single-crystal boron-doped diamond (SC-BDD) electrodes were fabricated and subjected to detailed surface analysis and electrochemical characterization. Specifically, the heteroepitaxy approach allowed to synthesize large-area (1 cm²) and heavily-doped (100)-oriented SC-BDD electrodes....

journal article 2023

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Unraveling the critical indicators for evaluating the high-temperature performance of rejuvenator-aged bitumen blends

Ren, S. (author), Liu, X. (author), Erkens, S. (author)

This study aims to systematically investigate the influence of rejuvenator type/dosage and the aging degree of bitumen on the rutting resistance, flow behavior, and elastic/creep potential of rejuvenated bitumen at high temperatures. The rutting parameter (G*/sinδ), rutting failure temperature (RFT) from Linear viscoelastic test (LVE), zero...

journal article 2023

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Microwave Heating Healing of Asphalt Mixture with Coal Gangue Powder and Basalt Aggregate

Zhang, Bin (author), Gao, Xu (author), Xu, S. (author), Yang, Xinkui (author), Tian, Qin (author), Liu, Jiayi (author)

Microwave heating is an effective method to achieve autonomic crack healing in asphalt mixtures, and the use of microwave-absorbing materials can largely improve this healing efficiency. As a solid waste, coal gangue contains metal oxides, which shows the possibility of microwave heating. In order to further promote the application of coal...

journal article 2023

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Investigating the rheological properties and compatibility behaviours of RET/PE and WR/CR/ SBS compound-modified bitumen

Ren, S. (author), Liu, X. (author), Jing, R. (author), Gao, Y. (author), Lin, P. (author), Erkens, S. (author)

Two types of elastomer/plastic compound-modified bitumen were developed by means of incorporating the reactive elastomeric terpolymer (RET) into the plastic (high-density polyethylene HDPE or recycled polyethylene RPE) modified bitumen and adding the wax residue (WR) into the bitumen/elastomer (crumb rubber CR or styrene–butadiene–styrene SBS)...

journal article 2023

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Do different chemical and rheological properties act as effective and critical indicators for efficiency evaluation of rejuvenated bitumen?

Ren, S. (author), Liu, X. (author), van Aggelen, M. (author), Lin, P. (author), Erkens, S. (author)

This study investigates the impacts of rejuvenator type/dosage and the aging degree of bitumen on the chemical and rheological properties of rejuvenated bitumen, and propose critical chemo-rheological indicators for evaluating rejuvenation efficiency. Moreover, the potential connections between essential chemical and rheological indices of...

journal article 2023

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Review on the diffusive and interfacial performance of bituminous materials: From a perspective of molecular dynamics simulation

Ren, S. (author), Liu, X. (author), Lin, P. (author), Gao, Y. (author), Erkens, S. (author)

The cohesive and adhesive performances of bituminous materials significantly affect the service life of asphalt pavement. The molecular dynamics (MD) simulation method has been proved as an effective tool to predict the thermodynamics parameters of different multisubstance and multi-phase bitumen models during different diffusion, self-healing,...

review 2022

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Evaluation of the fatigue properties for the long-term service asphalt pavement using the semi-circular bending tests and stereo digital image correlation technique

Cheng, Long (author), Zhang, Lei (author), Liu, X. (author), Yuan, Fang (author), Ma, Yang (author), Sun, Yinqing (author)

Reliable assessment of the fatigue resistance of asphalt pavement with a long-term service is critically crucial for the rational formulation of original pavement utilization strategies in reconstruction and expansion projects. Currently, the pavement performance evaluation indicators are mainly used to guide pavement preventive maintenance,...

journal article 2022

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One-step controllable fabrication of 3D structured self-standing Al₃Ni₂/Ni electrode through molten salt electrolysis for efficient water splitting

Hua, Zhongsheng (author), Wu, Xiaobin (author), Zhu, Zengli (author), He, Jiwen (author), He, Shiwei (author), Liu, Huan (author), Xu, Liang (author), Yang, Y. (author), Zhao, Zhuo (author)

Exploring more efficient and low-cost electrocatalysts to replace platinum (Pt) is highly desired to promote the practical hydrogen production through water splitting. Herein, a facile and effective strategy is proposed to fabricate self-standing Al₃Ni₂/Ni electrode with controlled phase composition and surface...

journal article 2022

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Influence of high content crumb rubber and different preparation methods on properties of asphalt under different aging conditions: Chemical properties, rheological properties, and fatigue performance

Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author)

Asphalt pavements are prone to aging in construction and during service, which can affect the properties of the asphalt. The aging behaviors of high content crumb rubber modified asphalt (HCRMA) were investigated in this paper. The binders were aged in the laboratory and the performances before and after aging were tested using the attenuated...

journal article 2022

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An integrated approach to the key parameters in methanol-to-olefins reaction catalyzed by MFI/MEL zeolite materials

Liu, C. (author), Uslamin, E. (author), van Vreeswijk, Sophie H. (author), Yarulina, Irina (author), Ganapathy, S. (author), Weckhuysen, Bert M. (author), Kapteijn, F. (author), Pidko, E.A. (author)

Identification of the catalyst characteristics correlating with the key performance parameters including selectivity and stability is key to the rational catalyst design. Herein we focused on the identification of property-performance relationships in the methanol-to-olefin (MTO) process by studying in detail the catalytic behaviour of MFI,...

journal article 2022

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Research on Design and Performance of Self-Compacting Cement Emulsified Bitumen Mixture (CEBM)

Yi, Jinming (author), Feng, Jianlin (author), Li, Yuanyuan (author), Bai, Tao (author), Chen, Anqi (author), Gao, Y. (author), Wu, Fan (author), Wu, Shaopeng (author), Liu, Quantao (author), Li, Chuangmin (author)

To meet the needs of the road industry for maintenance operations, a new cement emulsified bitumen mixture (CEBM) with early-strength, self-compacting, and room-temperature construction characteristics was designed. The strength formation mechanism of CEBM was revealed with a scanning electron microscope (SEM) and the surface free energy (SFE...

journal article 2022

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Evaluation of photocatalytic micro-surfacing mixture: road performance, vehicle exhaust gas degradation capacity and environmental impacts

Zhang, Zhao (author), Liu, Kai (author), Chong, Dan (author), Niu, D. (author), Lin, P. (author), Liu, X. (author), Niu, Yanhui (author), Jing, R. (author)

To purify severe air pollution in traffic-intensive urban areas and tunnels, an innovative type of photocatalytic micro-surfacing mixture (PMM) was designed, which was enhanced by polypropylene (PP) fiber and nano-TiO₂. In this work, the road performance of sixteen PMMs with the different contents of PP and nano-TiO₂...

journal article 2022

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State-of-the-art of data collection, analytics, and future needs of transmission utilities worldwide to account for the continuous growth of sensing data

Segundo Sevilla, Felix Rafael (author), Liu, Yanli (author), Barocio, Emilio (author), Korba, Petr (author), Andrade, Manuel (author), Chaudhuri, Balarko (author), Cremer, Jochen (author), Rueda, José L. (author), Tindemans, Simon H. (author)

Nowadays, transmission system operators require higher degree of observability in real-time to gain situational awareness and improve the decision-making process to guarantee a safe and reliable operation. Digitalization of energy systems allows utilities to monitor the system dynamic performance in real-time at fast time scales. The use of...

journal article 2022

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Thickness-Independent Capacitive Performance of Holey Ti₃C₂T_x Film Prepared through a Mild Oxidation Strategy

Guo, R. (author), Yuan, Peng (author), Han, Xiying (author), He, Xuexia (author), Lu, Jiangbo (author), Li, Qi (author), Dang, Liqin (author), Sun, Jie (author), Liu, Zonghuai (author), Lei, Zhibin (author)

The Ti₃C₂T_x film with metallic conductivity and high pseudo-capacitance holds profound promise in flexible high-rate supercapacitors. However, the restacking of Ti₃C₂T_x sheets hinders ion access to thick film electrodes. Herein, a mild yet green route has been developed to...

journal article 2022