Jie Xia, Yanxian Geng, Shuting Huang et al.

Journal of Power Sources • 2021

Jian‐Chun Ma, Lifang Wang, Yezhen Zhang et al.

Molecules • 2024

A nanocomposite of multi-walled carbon nanotubes (MWCNTs) decorated with molybdenum dioxide (MoO 2 ) nanoparticles is fabricated through the reduction of phosphomolybdic acid hydrate on functionalized MWCNTs in a hydrogen-argon (10%) atmosphere in a tube furnace. The MoO 2 /MWCNTs composite is proposed as an anodic modification material for microbial fuel cells (MFCs). MWCNTs have outstanding physical and chemical peculiarities, with functionalized MWCNTs having substantially large electroactive areas. In addition, combined with the exceptional properties of MoO 2 nanoparticles, the synergistic advantages of functionalized MWCNTs and MoO 2 nanoparticles give a MoO 2 /MWCNTs anode a large electroactive area, excellent electronic conductivity, enhanced extracellular electron transfer capacity, and improved nutrient transfer capability. Finally, the power harvesting of an MFC with the MoO 2 /MWCNTs anode is improved, with the MFC showing long-term repeatability of voltage and current density outputs. This exploratory research advances the fundamental application of anodic modification to MFCs, simultaneously providing valuable guidance for the use of carbon-based transition metal oxide nanomaterials in high-performance MFCs.

Ruiwen Wang, Da Liu, Mei Yan et al.

Bioresource Technology • 2019

Jayesh M. Sonawane, Saad Al-Saadi, R.K. Singh Raman et al.

Electrochimica Acta • 2018

Zeyu Fan, Jun Li, Yi Zhou et al.

International Journal of Hydrogen Energy • 2017

Yi Liu, Yong Zhao, Kexun Li et al.

Journal of Power Sources • 2017

Jingyi Ye, Wenwen Tan, Yi Zhou et al.

Process Safety and Environmental Protection • 2025

Haiping Luo, Shuxian Yu, Guangli Liu et al.

Fuel • 2016

Liang Tan, Zhao‐Qing Liu, Nan Li et al.

Electrochimica Acta • 2016

Mehrdad Mashkour, Mostafa Rahimnejad, Mahdi Mashkour et al.

Applied Energy • 2020

Demin Jiang, Kai Cheng, Liang Li et al.

ACS Applied Engineering Materials • 2023

Anodes are considered an important component of microbial fuel cells (MFCs) to recover electric energy from organic wastewater. Herein, Fe/N codoped paper carbon fiber foam was developed as an anode for MFCs to enhance electricity generation and wastewater treatment. The interconnected microporous network was beneficial for bacteria colonization and biofilm formation. The N doping enhanced the hydrophilicity to facilitate bacterial proximity. The Fe doping modulation adhered to the microorganisms due to the positive charge of iron ions. The codoped anode promoted the organic matter degradation efficiency and intrinsic electricity generation property based on the optimized thick biofilm. The high electricity output of MFCs was increased by the decreased internal resistance. The assembled MFCs possessed a short start-up time of 29.1 h, high maximum power density of 2270 ± 118 mW·m–2, desirable chemical oxygen demand removal efficiency of 71.7 ± 1.9%, and high decolorization efficiency of 90.3 ± 2.5% at 44 h. Fe/N codoped strategy is proposed to construct anodes for improving the electricity generation property and wastewater treatment efficiency of MFCs.

Ruyan Chen, Xiaodan Liu, Yutong Liang et al.

Separation and Purification Technology • 2025

Xinwen Peng, Shuiliang Chen, Lang Liu et al.

Electrochimica Acta • 2016

Da Liu, Qinghuan Chang, Yan Gao et al.

Electrochimica Acta • 2019

Jing Song, Yan Zhang, Xin Nong et al.

Fuel • 2023

Yuqin Wang, Haoshan Xu, Shuhong Huang et al.

Applied Surface Science • 2022

Chengxian Wang, Xiaoli Chai, Fei Yu et al.

Electrochimica Acta • 2023

Lina Jaya Diguna, Rike Tri Kumala Dewi, Tobias Haposan et al.

International Journal of Hydrogen Energy • 2025

Maryam Asghary, Jahan Bakhsh Raoof, Mostafa Rahimnejad et al.

International Journal of Hydrogen Energy • 2016

Yilkal Dessie, Sisay Tadesse, Rajalakshmanan Eswaramoorthy et al.

All Life • 2021

Microbial fuel cell (MFC) has novel technological advances in simultaneous power generation and wastewater treatment applications. In this study, low-cost biosynthesized α-MnO2 nanoparticles integration with conducting polyaniline (PANI) matrix to form α-MnO2/PANI hybrid nanocomposite was fabricated by in situ polymerization method. The prepared material was characterized through UV-Vis spectroscopy, XRD, FTIR, TGA-DTA, DSC, SEM, cyclic voltammetry, and impedance spectroscopy. MFC performance study was done by using an external resistance in the range of 100 Ω–100 kΩ. The continuous test on bare pencil graphite electrode (PGE), α-MnO2/PGE, PANI/PGE, and α-MnO2/PANI/PGE were evaluated in glucose-fed-Escherichia coli-based MFC. It was found that α-MnO2/PANI/PGE produces a maximum power and current densities of 426.26 ± 38.89 mW m−2 and 2485.51 ± 397.31 mA m−2, respectively. This was 6.5 and 5.7-fold higher in power and current densities than unmodified PGE. The maximum chemical oxygen demand produced by hybrid composite modified anode during closed circuit voltage or with external resistance and open circuit voltage (OCV) (circuit without connecting external resistance) measurements were found to be 88.19% and 92.27%, respectively. A maximum of 650.61 ± 10.11 mV OCV was obtained by α-MnO2/PANI/PGE while 222.36 ± 8.16 mV of OCV was generated by PGE.

Yuyang Wang, Hongtao Zheng, Cunguo Lin et al.

Journal of Applied Electrochemistry • 2020

Yujing Jiang, Su Hui, Shihao Tian et al.

Nanoscale Advances • 2022

Low efficiency of extracellular electron transfer (EET) is a major bottleneck in developing high-performance microbial fuel cells (MFCs). Herein, we construct Shewanella oneidensis MR-1@Au for the bioanode of MFCs. Through performance recovery experiments of mutants, we proved that abundant Au nanoparticles not only tightly covered the bacteria surface, but were also distributed in the periplasm and cytoplasm, and even embedded in the outer and inner membranes of the cell. These Au nanoparticles could act as electron conduits to enable highly efficient electron transfer between S. oneidensis MR-1 and electrodes. Strikingly, the maximum power density of the S. oneidensis MR-1@Au bioanode reached up to 3749 mW m -2 , which was 17.4 times higher than that with the native bacteria, reaching the highest performance yet reported in MFCs using Au or Au-based nanocomposites as the anode. This work elucidates the role of Au nanoparticles in promoting transmembrane and extracellular electron transfer from the perspective of molecular biology and electrochemistry, while alleviating bottlenecks in MFC performances.

Lizhen Zeng, Shaofei Zhao, Lixia Zhang et al.

RSC Advances • 2018

A novel macroscale porous structure electrode, molybdenum carbide nanoparticles-modified carbonized cotton textile (Mo 2 C/CCT), was synthesized by a facile two-step method and used as an anode material for high-performance microbial fuel cells (MFCs). The characterization results show that the carbonized cotton textile modified with Mo 2 C nanoparticles offers a great specific surface area (832.17 m 2 g -1 ) for bacterial adhesion. The MFC using Mo 2 C/CCT anode delivers the maximum power density of 1.12 W m -2 , which is 51% and 116% higher than that of CCT and unmodified carbon felt anodes under the same conditions. The high power density is mainly due to the Mo 2 C nanoparticles with good biocompatibility and high conductivity and superior electrochemical activity, as well as the macroscale porous structure of carbonized cotton textile, which facilitate the formation of electroactive biofilm and improve the electron transfer. This paper introduces a feasible way to synthesize cost-effective and high-performance anode materials for MFCs.

Meiqiong Chen, Wenxian Guo, Yan Zhang et al.

Electrochimica Acta • 2021

Lihua Huang, Xiufen Li, Yueping Ren et al.

RSC Advances • 2016

Monolithic 3D-G which is inflexible and has a macroporous structure, crumpled matrix, good conductivity and low cost enhanced the electrogenesis of a MFC.

Yuyang Wang, Xu Pan, Ye Chen et al.

Journal of Applied Electrochemistry • 2020

Haojia Liu, Zhihao Zhang, Yan Xu et al.

Bioelectrochemistry • 2020

Nan Xiao, Rong Wu, Jinhui Jeanne Huang‬‬‬‬ et al.

Sensors and Actuators B Chemical • 2019

Long Zou, Yan Qiao, Canyu Zhong et al.

Electrochimica Acta • 2017

Yuyang Wang, Qing Wen, Ye Chen et al.

Journal of the Taiwan Institute of Chemical Engineers • 2017

Jiajia Li, Jiaqi Qian, Xiaoyu Chen et al.

Composites Part B Engineering • 2021

Haoran Yuan, Ge Dong, Denian Li et al.

The Science of The Total Environment • 2018

Yufeng Jia, Huajun Feng, Dongsheng Shen et al.

Journal of Hazardous Materials • 2018

Xiaoxiao Ma, Chunhua Feng, Weijia Zhou et al.

Journal of Power Sources • 2016

Haitao Xu, Luguang Wang, Qing Wen et al.

Bioelectrochemistry • 2019

Dieter Klemm, Emily D. Cranston, Dagmar Fischer et al.

Materials Today • 2018

Nanocelluloses are natural materials with at least one dimension in the nano-scale. They combine important cellulose properties with the features of nanomaterials and open new horizons for materials science and its applications. The field of nanocellulose materials is subdivided into three domains: biotechnologically produced bacterial nanocellulose hydrogels, mechanically delaminated cellulose nanofibers, and hydrolytically extracted cellulose nanocrystals. This review article describes today's state regarding the production, structural details, physicochemical properties, and innovative applications of these nanocelluloses. Promising technical applications including gels/foams, thickeners/stabilizers as well as reinforcing agents have been proposed and research from last five years indicates new potential for groundbreaking innovations in the areas of cosmetic products, wound dressings, drug carriers, medical implants, tissue engineering, food and composites. The current state of worldwide commercialization and the challenge of reducing nanocellulose production costs are also discussed.

Jiazhang Lian, Mohammad HamediRad, Sumeng Hu et al.

Nature Communications • 2017

Designing an optimal microbial cell factory often requires overexpression, knock-down, and knock-out of multiple gene targets. Unfortunately, such rewiring of cellular metabolism is often carried out sequentially and with low throughput. Here, we report a combinatorial metabolic engineering strategy based on an orthogonal tri-functional CRISPR system that combines transcriptional activation, transcriptional interference, and gene deletion (CRISPR-AID) in the yeast Saccharomyces cerevisiae. This strategy enables perturbation of the metabolic and regulatory networks in a modular, parallel, and high-throughput manner. We demonstrate the application of CRISPR-AID not only to increase the production of β-carotene by 3-fold in a single step, but also to achieve 2.5-fold improvement in the display of an endoglucanase on the yeast surface by optimizing multiple metabolic engineering targets in a combinatorial manner.

Qinghua Wang, Yayi Liang, Jiankang Tang et al.

Journal of Cleaner Production • 2024

Mostafa El‐Shafie, Shinji Kambara, Yukio Hayakawa

Journal of Power and Energy Engineering • 2019

Hydrogen energy became the most significant energy as the current demand gradually starts to increase. Hydrogen energy is an important key solution to tackle the global temperature rise. The key important factor of hydrogen production is the hydrogen economy. Hydrogen production technologies are commercially available, while some of these technologies are still under development. This paper reviews the hydrogen production technologies from both fossil and non-fossil fuels such as (steam reforming, partial oxidation, auto thermal, pyrolysis, and plasma technology). Additionally, water electrolysis technology was reviewed. Water electrolysis can be combined with the renewable energy to get eco-friendly technology. Currently, the maximum hydrogen fuel productions were registered from the steam reforming, gasification, and partial oxidation technologies using fossil fuels. These technologies have different challenges such as the total energy consumption and carbon emissions to the environment are still too high. A novel non-fossil fuel method [ammonia NH3] for hydrogen production using plasma technology was reviewed. Ammonia decomposition using plasma technology without and with a catalyst to produce pure hydrogen was considered as compared case studies. It was showed that the efficiency of ammonia decomposition using the catalyst was higher than ammonia decomposition without the catalyst. The maximum hydrogen energy efficiency obtained from the developed ammonia decomposition system was 28.3% with a hydrogen purity of 99.99%. The development of ammonia decomposition processes is continues for hydrogen production, and it will likely become commercial and be used as a pure hydrogen energy source.

Javier Quílez‐Bermejo, Emilia Morallón, Diego Cazorla‐Amorós

Carbon • 2020