The DOI matches its Crossref record.
Solar driven hydrogen releasing from urea and human urine
Abstract
Urea has been considered as a potential hydrogen source, while the conventional methods to extract hydrogen from urea are typically energy intensive processes. Here we report the first demonstration of solar driven hydrogen releasing from urea and human urine in a photoelectrochemical cell, with the assistance of Ni(OH)2 modified metal oxide photoelectrodes (e.g., TiO2 and α-Fe2O3). Ni(OH)2 serves as a urea oxidation catalyst. Under light illumination, photoexcited holes generated at the metal oxide electrode oxidize urea, while photoexcited electrons reduce water to produce hydrogen gas at the Pt counter electrode. Urea oxidation was achieved under a small external bias or even at zero bias. Significantly, we observed continuous and stable hydrogen evolution at the Pt electrode in both urea and human urine electrolyte solutions under AM 1.5G (100 mW cm−2) light illumination. This work presents a safe, low energy cost, environmentally friendly and sustainable method to produce hydrogen, and simultaneously treat urine.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Metallic Nickel Hydroxide Nanosheets Give Superior Electrocatalytic Oxidation of Urea for Fuel Cells
Zhu, X., Dou, X., Dai, J., An, X., Guo, Y., Zhang, L., Tao, S., Zhao, J., Chu, W., Zeng, X. C., et al. (2016) · Angewandte Chemie International Edition · doi:10.1002/anie.201606313 · Cited by 438
Boosting urea electrooxidation on oxyanion-engineered nickel sites via inhibited water oxidation
Gao, X., Bai, X., Wang, P., Jiao, Y., Davey, K., Zheng, Y., & Qiao, S.-Z. (2023) · Nature Communications · doi:10.1038/s41467-023-41588-w · Cited by 306
Kampouri, S., & Stylianou, K. C. (2019) · ACS Catalysis · doi:10.1021/acscatal.9b00332 · Cited by 298
Xu, S., Ruan, X., Ganesan, M., Wu, J., Ravi, S. K., & Cui, X. (2024) · Advanced Functional Materials · doi:10.1002/adfm.202313309 · Cited by 264
Metadata
- Authors
- Wang, G., Ling, Y., Lu, X., Wang, H., Qian, F., Tong, Y., & Li, Y.
- Venue
- Energy & Environmental Science
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 5
- Issue
- 8
- Pages
- 8215
- ISSN
- 1754-5692 (ISSN-L)
- 1754-5706
- OpenAlex
- W2154236653
- Cited by
- 188
- References
- 0
- FWCI
- 2.92
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Solar driven hydrogen releasing from urea and human urine. https://app.cochat.ai/papers/10.1039/c2ee22087c
- The paper
- Wang, G., Ling, Y., Lu, X., Wang, H., Qian, F., Tong, Y., & Li, Y. (2012). Solar driven hydrogen releasing from urea and human urine. Energy & Environmental Science. https://doi.org/10.1039/c2ee22087c
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
