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Near-infrared light-driven asymmetric photolytic reduction of ketone using inorganic-enzyme hybrid biocatalyst

Qiao, Li (author), Zhang, Jing (author), Jiang, Yongjian (author), Ma, Bianqin (author), Chen, Haomin (author), Gao, Peng (author), Zhang, Pengfei (author), Wang, Anming (author), Sheldon, R.A. (author)

Effective photolytic regeneration of the NAD(P)H cofactor in enzymatic reductions is an important and elusive goal in biocatalysis. It can, in principle, be achieved using a near-infrared light (NIR) driven artificial photosynthesis system employing H₂O as the sacrificial reductant. To this end we utilized TiO₂/reduced...

journal article 2024

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Precision Engineering of the Co-immobilization of Enzymes for Cascade Biocatalysis

Luo, Zhiyuan (author), Qiao, Li (author), Chen, Haomin (author), Mao, Zhili (author), Wu, Shujiao (author), Ma, Bianqin (author), Xie, Tian (author), Wang, Anming (author), Pei, Xiaolin (author), Sheldon, R.A. (author)

The design and orderly layered co-immobilization of multiple enzymes on resin particles remain challenging. In this study, the SpyTag/SpyCatcher binding pair was fused to the N-terminus of an alcohol dehydrogenase (ADH) and an aldo-keto reductase (AKR), respectively. A non-canonical amino acid (ncAA), p-azido-L-phenylalanine (p-AzF), as the...

journal article 2024

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Effect of Dispersing Solvents for an Ionomer on the Performance of Copper Catalyst Layers for CO₂ Electrolysis to Multicarbon Products

Idros, Mohamed Nazmi (author), Wu, Yuming (author), Duignan, Timothy (author), Li, Mengran (author), Cartmill, Hayden (author), Maglaya, Irving (author), Burdyny, T.E. (author), Wang, Geoff (author), Rufford, Thomas E. (author)

To explore the effects of solvent-ionomer interactions in catalyst inks on the structure and performance of Cu catalyst layers (CLs) for CO₂ electrolysis, we used a “like for like” rationale to select acetone and methanol as dispersion solvents with a distinct affinity for the ionomer backbone or sulfonated ionic heads,...

journal article 2023

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道路沥青挥发性有机化合物减排材料的研究进展

Chang, Xiwen (author), Long, Yongshuang (author), Yi, Mingwei (author), Wang, C. (author), Xiao, Yue (author)

Due to the complex organic properties of asphalt materials, the heating process during asphalt pavement construction will lead to the release of asphalt VOCs‧ Asphalt VOCs volatilization will cause irreversible harm to both the environment and health of construction workers‧ Researchers in the field of road construction have carried out...

review 2023

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Efficient Angle Estimation for MIMO Systems via Redundancy Reduction Representation

Zhang, Yu (author), Wang, Yue (author), Tian, Zhi (author), Leus, G.J.T. (author), Zhang, Gong (author)

This paper proposes an efficient direction of departure (DOD) and direction of arrival (DOA) estimation method for multi-input multi-output (MIMO) systems. For uncorrelated scenarios, the redundancy of the covariance matrix is first exploited by establishing its concise representation through redundancy reduction, which transforms the...

journal article 2022

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Effects of microporous layer on electrolyte flooding in gas diffusion electrodes and selectivity of CO₂ electrolysis to CO

Wu, Yuming (author), Garg, Sahil (author), Li, Mengran (author), Idros, Mohamed Nazmi (author), Li, Zhiheng (author), Lin, Rijia (author), Chen, Jian (author), Wang, Guoxiong (author), Rufford, Thomas E. (author)

Understanding the relationship between gas diffusion electrode (GDE) structures and the performance of electrochemical CO₂ reduction reaction (CO₂RR) is crucial to developing industrial-scale technologies to convert CO₂ to valuable products. We studied how the microporous layer (MPL) on GDE's coated with...

journal article 2022

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Electrochemical CO₂ reduction in membrane-electrode assemblies

Ge, Lei (author), Rabiee, Hesamoddin (author), Li, Mengran (author), Subramanian, S.S. (author), Zheng, Yao (author), Lee, Joong Hee (author), Burdyny, T.E. (author), Wang, H. (author)

Electrochemical conversion of gaseous CO₂ to value-added products and fuels is a promising approach to achieve net-zero CO₂ emission energy systems. Significant efforts have been achieved in the design and synthesis of highly active and selective electrocatalysts for this reaction and their reaction mechanism. To perform...

review 2022

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Parameter estimation for a global tide and surge model with a memory-efficient order reduction approach

Wang, X. (author), Verlaan, M. (author), Apecechea, Maialen Irazoqui (author), Lin, H.X. (author)

Accurate parameter estimation for the Global Tide and Surge Model (GTSM) benefits from observations with long time-series. However, increasing the number of measurements leads to a large computation demand and increased memory requirements, especially for the ensemble-based methods that assimilate the measurements at one batch. In this study,...

journal article 2022

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Computation-Efficient Parameter Estimation for a High-Resolution Global Tide and Surge Model

Wang, X. (author), Verlaan, M. (author), Apecechea, Maialen Irazoqui (author), Lin, H.X. (author)

In this study, a computation-efficient parameter estimation scheme for high-resolution global tide models is developed. The method is applied to Global Tide and Surge Model with an unstructured grid with a resolution of about 2.5 km in the coastal area and about 4.9 million cells. The estimation algorithm uses an iterative least squares...

journal article 2021

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Regime shifts in the Changjiang (Yangtze River) Estuary: The role of concentrated benthic suspensions

Lin, J. (author), van Prooijen, Bram (author), Guo, Leicheng (author), Zhu, C. (author), He, Qing (author), Wang, Zhengbing (author)

Channel deepening often triggers positive feedback between tidal deformation, sediment import and drag reduction, which leads to the regime shift in estuaries from low-turbid to hyper-turbid state. In this study, a transition in profiles of suspended sediment concentration (SSC) is hypothesised by including a positive feedback loop of...

journal article 2021

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Engineering Metal–Organic Frameworks for the Electrochemical Reduction of CO₂: A Minireview

Wang, R. (author), Kapteijn, F. (author), Gascon, Jorge (author)

The electrochemical reduction of CO₂ holds great promise for lowering the concentration of CO₂ in the Earth′s atmosphere. However, several challenges have hindered the commercialization of this technology, including energy efficiency, the solubility of CO₂ in the aqueous phase, and electrode stability. In this...

review 2019

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Adverse effects of potassium on NO_x reduction over Di-Air catalyst (Rh/La-Ce-Zr)

Wang, Y. (author), Makkee, M. (author)

The influence of potassium in Rh on a lanthium promoted zirconia stablised ceria (CZ) catalysts was studied toward NO_xreduction reactivity and selectivity. The results are compared with a Rh/CZ catalyst. The samples were characterised by N₂ adsorption, XRD, SEM, ICP, and H₂-TPR. The study highlighted the...

journal article 2019

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NO_x reduction in the Di-Air system over noble metal promoted ceria

Wang, Y. (author), Kapteijn, F. (author), Makkee, M. (author)

In this study, the role of the noble metals Pt and Rh (0.5 wt.%) for the selective reduction of NO into N₂ is evaluated by the transient TAP technique and in-situ spectroscopy using a commercial stable ceria support (denoted as CZ) and applying isotopically labelled ¹⁵NO and ¹⁸O₂. The transient...

journal article 2018

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Metal-Organic-Framework-Mediated Nitrogen-Doped Carbon for CO₂ Electrochemical Reduction

Wang, R. (author), Sun, X. (author), Ould-Chikh, Samy (author), Osadchii, D. (author), Bai, F. (author), Kapteijn, F. (author), Gascon, Jorge (author)

A nitrogen-doped carbon was synthesized through the pyrolysis of the well-known metal-organic framework ZIF-8, followed by a subsequent acid treatment, and has been applied as a catalyst in the electrochemical reduction of carbon dioxide. The resulting electrode shows Faradaic efficiencies to carbon monoxide as high as ∼78%, with hydrogen...

journal article 2018

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Bromate reduction by iron(II) during managed aquifer recharge: A laboratory-scale study

Wang, F. (author), Salgado Ismodes, V.A. (author), van der Hoek, J.P. (author), van Halem, D. (author)

The removal of bromate (BrO₃ ^-) as a byproduct of ozonation in subsequent managed aquifer recharge (MAR) systems has so far gained little attention. This preliminary study with anoxic batch experiments was executed to explore the feasibility of chemical BrO₃ ^- reduction in Fe-reducing zones of MAR...

journal article 2018

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The influence of CO₂ on NO reduction into N₂ over reduced ceria-based catalyst

Wang, Y. (author), Makkee, M. (author)

Oxygen defects in reduced ceria are the catalytic sites for the NO reduction into N₂ in the Toyota Di-Air DeNO_x abatement technology. Traces of NO (several hundred ppm) have to compete with the excess amount of other oxidants, e.g., 5% CO₂ and 5% O₂, in an exhaust gas of a lean burn (diesel) engine....

journal article 2018

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Dynamic optimization of ship energy efficiency considering time-varying environmental factors

Wang, K. (author), Yan, Xinping (author), Yuan, Yupeng (author), Jiang, X. (author), Lin, X. (author), Negenborn, R.R. (author)

Nowadays, optimization of ship energy efficiency attracts increasing attention in order to meet the requirement for energy conservation and emission reduction. Ship operation energy efficiency is significantly influenced by environmental factors such as wind speed and direction, water speed and depth. Owing to inherent time-variety and...

journal article 2018

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Oxygen Vacancies in Reduced Rh/ and Pt/Ceria for Highly Selective and Reactive Reduction of NO into N₂ in excess of O₂

Wang, Y. (author), Oord, Ramon (author), van den Berg, D. (author), Weckhuysen, Bert M. (author), Makkee, M. (author)

Currently commercial NO_x removal (DeNO_x) abatement systems for lean-burn engines exceed regulation limits on the road for NO_x emissions. Commercial DeNO_x catalysts exhibit poor performance in the selective conversion of NO to N₂, especially at high temperature and high gas hourly space...

journal article 2017

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Fundamental Understanding of the Di-Air System: The Role of Ceria in NO_x Abatement

Wang, Y. (author), Posthuma De Boer, J (author), Kapteijn, F. (author), Makkee, M. (author)

Temporal analysis of product (TAP) is used to investigate the effectiveness of CO, C₃H₆, and C₃H₈ in the reduction of a La–Zr doped ceria catalyst and NO reduction into N₂ over this pre-reduced catalyst. Hydrocarbons are found to be substantially more effective in the reduction of this...

journal article 2016

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Characterization of Failure and Permanent Deformation Behaviour of Asphalt Concrete

Wang, J.G. (author)

Asphalt concrete is a viscoelastic material consisting of aggregates, filler and bitumen. The response of asphalt concrete is highly dependent on temperature, loading rate and confining pressure. Permanent deformation is one of the most important distresses developing during the flexible pavement service life. The total deformation which is...

doctoral thesis 2015