Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion
Abstract Hydrogels are promising for moist-electric generator, yet their performance is limited by microscale pores, low charge density, and unstable pore structures. Here, a delignified pomelo peel-confined carboxymethyl cellulose nanofluidic hydrogel is designed to address these limitations. Lever...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-08-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-61716-y |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849764031642992640 |
|---|---|
| author | Xuejiao Lin Shenming Tao Jilong Mo Xijun Wang Yizhe Shao Yingfan Hu Changjing Qiu Kaiyuan Shen Chao Dang Haisong Qi |
| author_facet | Xuejiao Lin Shenming Tao Jilong Mo Xijun Wang Yizhe Shao Yingfan Hu Changjing Qiu Kaiyuan Shen Chao Dang Haisong Qi |
| author_sort | Xuejiao Lin |
| collection | DOAJ |
| description | Abstract Hydrogels are promising for moist-electric generator, yet their performance is limited by microscale pores, low charge density, and unstable pore structures. Here, a delignified pomelo peel-confined carboxymethyl cellulose nanofluidic hydrogel is designed to address these limitations. Leveraging the hierarchical porous architecture of delignified pomelo peel, the nanofluidic hydrogel achieves sub-Debye-length nanopores with high stability and charge density. At 80% relative humidity, a single device unit exhibits an open-circuit voltage of 1.32 V and a short-circuit current density of 693.2 µA cm-2, which are nearly triple and twenty times higher than delignified pomelo peel. The output voltage exceeds that of conventional hydrogel without nanopores by about 0.4 V. This enhanced performance is due to sub-Debye-length nanopores synergizing H+/Cu2+ gradient diffusion and Debye screening effect. Moreover, the integrated devices reach an ultrahigh output voltage exceeding 5000 V. We report the prototype of a moisture-stimulated negative air ion generator for efficient air purification. This work advances moisture energy harvesting through pore engineering and expands its applications. |
| format | Article |
| id | doaj-art-9f96699df9c44a0499446a74cd583b97 |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-9f96699df9c44a0499446a74cd583b972025-08-20T03:05:14ZengNature PortfolioNature Communications2041-17232025-08-0116111510.1038/s41467-025-61716-yCellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversionXuejiao Lin0Shenming Tao1Jilong Mo2Xijun Wang3Yizhe Shao4Yingfan Hu5Changjing Qiu6Kaiyuan Shen7Chao Dang8Haisong Qi9State Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyDepartment of Mechanical Engineering, National University of SingaporeState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyDepartment of Mechanical Engineering, National University of SingaporeState Key Laboratory of Pulp and Paper Engineering, South China University of TechnologyAbstract Hydrogels are promising for moist-electric generator, yet their performance is limited by microscale pores, low charge density, and unstable pore structures. Here, a delignified pomelo peel-confined carboxymethyl cellulose nanofluidic hydrogel is designed to address these limitations. Leveraging the hierarchical porous architecture of delignified pomelo peel, the nanofluidic hydrogel achieves sub-Debye-length nanopores with high stability and charge density. At 80% relative humidity, a single device unit exhibits an open-circuit voltage of 1.32 V and a short-circuit current density of 693.2 µA cm-2, which are nearly triple and twenty times higher than delignified pomelo peel. The output voltage exceeds that of conventional hydrogel without nanopores by about 0.4 V. This enhanced performance is due to sub-Debye-length nanopores synergizing H+/Cu2+ gradient diffusion and Debye screening effect. Moreover, the integrated devices reach an ultrahigh output voltage exceeding 5000 V. We report the prototype of a moisture-stimulated negative air ion generator for efficient air purification. This work advances moisture energy harvesting through pore engineering and expands its applications.https://doi.org/10.1038/s41467-025-61716-y |
| spellingShingle | Xuejiao Lin Shenming Tao Jilong Mo Xijun Wang Yizhe Shao Yingfan Hu Changjing Qiu Kaiyuan Shen Chao Dang Haisong Qi Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion Nature Communications |
| title | Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion |
| title_full | Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion |
| title_fullStr | Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion |
| title_full_unstemmed | Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion |
| title_short | Cellulose hydrogel with in-situ confined nanopores for boosting moist-electric conversion |
| title_sort | cellulose hydrogel with in situ confined nanopores for boosting moist electric conversion |
| url | https://doi.org/10.1038/s41467-025-61716-y |
| work_keys_str_mv | AT xuejiaolin cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT shenmingtao cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT jilongmo cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT xijunwang cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT yizheshao cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT yingfanhu cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT changjingqiu cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT kaiyuanshen cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT chaodang cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion AT haisongqi cellulosehydrogelwithinsituconfinednanoporesforboostingmoistelectricconversion |