A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Advancing Hydrovoltaic Energy Harvesting from Wood through Cell Wall Nanoengineering
Converting omnipresent environmental energy through the assistance of spontaneous water evaporation is an emerging technology for sustainable energy systems. Developing bio-based hydrovoltaic materials further pushes the sustainability, where wood is a prospect due to its native hydrophilic and anisotropic structure. However, current wood-based water evaporation-assisted power generators are facing the challenge of low power density. Here, an efficient hydrovoltaic wood power generator is reported based on wood cell wall nanoengineering. A highly porous wood with cellulosic network filling the lumen is fabricated through a green, one-step treatment using sodium hydroxide to maximize the wood surface area, introduce chemical functionality, and enhance the cell wall permeability of water. An open-circuit potential of ≈140 mV in deionized water is realized, over ten times higher than native wood. Further tuning the pH difference between wood and water, due to an ion concentration gradient, a potential up to 1 V and a remarkable power output of 1.35 µW cm−2 is achieved. The findings in this study provide a new strategy for efficient wood power generators. ; QC 20230512
Advancing Hydrovoltaic Energy Harvesting from Wood through Cell Wall Nanoengineering
Converting omnipresent environmental energy through the assistance of spontaneous water evaporation is an emerging technology for sustainable energy systems. Developing bio-based hydrovoltaic materials further pushes the sustainability, where wood is a prospect due to its native hydrophilic and anisotropic structure. However, current wood-based water evaporation-assisted power generators are facing the challenge of low power density. Here, an efficient hydrovoltaic wood power generator is reported based on wood cell wall nanoengineering. A highly porous wood with cellulosic network filling the lumen is fabricated through a green, one-step treatment using sodium hydroxide to maximize the wood surface area, introduce chemical functionality, and enhance the cell wall permeability of water. An open-circuit potential of ≈140 mV in deionized water is realized, over ten times higher than native wood. Further tuning the pH difference between wood and water, due to an ion concentration gradient, a potential up to 1 V and a remarkable power output of 1.35 µW cm−2 is achieved. The findings in this study provide a new strategy for efficient wood power generators. ; QC 20230512
Advancing Hydrovoltaic Energy Harvesting from Wood through Cell Wall Nanoengineering
Garemark, Jonas (author) / Ram, Farsa (author) / Liu, Lianlian (author) / Sapouna, Ioanna (author) / Cortes Ruiz, Maria F. (author) / Larsson, Per Tomas (author) / Li, Yuanyuan (author)
2023-01-01
Scopus 2-s2.0-85142365851
Article (Journal)
Electronic Resource
English
DDC:
690
High Hydrovoltaic Power Density Achieved by Universal Evaporating Potential Devices
| Wiley | 2023
Construction method of graded anti-blocking low-pressure pipeline system for hydrovoltaic generators
| European Patent Office | 2021
Nanoengineering of Particle Surfaces
| British Library Online Contents | 2001
Nanoengineering in the modern steel industry
British Library Online Contents | 2013
Nanoengineering UHPC materials and structures
| Tema Archive | 2008