Living microbial cement supercapacitors with reactivatable energy storage DOI
Qi Luo, Zhongming Li, Yongxin Li

et al.

Published: April 9, 2025

Abstract For millennia, cement has been regarded as inert structural material. Here, we challenge this long-standing perception by transforming into a “living” energy device, pioneering the first microbial supercapacitor. This biohybrid system achieves 178.7 Wh/kg density and 8.3 kW/kg power density, surpassing state-of-the-art cement-based capacitors some lithium-ion capacitors. By integrating electroactive microorganisms cement, established functional charge storage network that leverages extracellular electron transfer to enable dynamic redox-active storage. exhibits cycling stability, retaining 88% of its capacitance after 5,000 cycles. Even inactivation, residual conductive networks biofilms sustain Moreover, introduce reactivation strategy, wherein an embedded microfluidic periodically supplies nutrients restore activity, enabling up 18% recovery sustaining long-term efficiency. Our findings establish new paradigm for bio-integrated, materials, paving way energy-autonomous infrastructure.

Language: Английский

Influence of aluminum enrichment zone on chloride ion penetration resistance in rubber cement-based materials DOI
Xingyu Zhao,

Youzhi Yang,

Jinrui Zhang

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 471, P. 140619 - 140619

Published: March 7, 2025

Language: Английский

Citations

0
Dynamic Accounting of Carbon Uptake in the Built Environment DOI Creative Commons
Elisabeth Van Roijen, Seth Kane, Fan Jin

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Transforming building materials from net life-cycle CO2e emitters to carbon sinks is a key pathway towards decarbonizing the industrial sector. Current assessments of (particularly "low-carbon" materials) often focus on cradle-to-gate emissions, which can exclude emissions and uptake (i.e., fluxes) later in materials' life-cycle. Further, conventional emission characterization disregards dynamic effects timing cumulative radiative forcing processes like manufacturing, biomass growth, decadal storage long-lived materials. This work presents framework analyze cradle-to-grave balance using time-dependent global warming potential calculation. We apply this accounting built environment (D-CUBE) tool examine two case studies: concrete cross-laminated timber (CLT). When for effects, long time biogenic CLT results reduced warming, while slow rate via carbonation does not result significant reductions warming. The D-CUBE allows consistent comparisons across mitigation strategies at varying stages be adapted other or systems with different lifespans applications. flexibility ability identify hot-spot will instrumental identifying pathways achieving net-carbon-sequestering

Language: Английский

Citations

0
3D printing technology in concrete construction DOI
Yuying Zhang, Xiaohong Zhu, Muduo Li

et al.

Published: April 4, 2025

Language: Английский

Citations

0
Living microbial cement supercapacitors with reactivatable energy storage DOI
Qi Luo, Zhongming Li, Yongxin Li

et al.

Published: April 9, 2025

Abstract For millennia, cement has been regarded as inert structural material. Here, we challenge this long-standing perception by transforming into a “living” energy device, pioneering the first microbial supercapacitor. This biohybrid system achieves 178.7 Wh/kg density and 8.3 kW/kg power density, surpassing state-of-the-art cement-based capacitors some lithium-ion capacitors. By integrating electroactive microorganisms cement, established functional charge storage network that leverages extracellular electron transfer to enable dynamic redox-active storage. exhibits cycling stability, retaining 88% of its capacitance after 5,000 cycles. Even inactivation, residual conductive networks biofilms sustain Moreover, introduce reactivation strategy, wherein an embedded microfluidic periodically supplies nutrients restore activity, enabling up 18% recovery sustaining long-term efficiency. Our findings establish new paradigm for bio-integrated, materials, paving way energy-autonomous infrastructure.

Language: Английский

Citations

0