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Institution

Hydro-Québec

GovernmentMontreal, Quebec, Canada
About: Hydro-Québec is a government organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Electric power system & Dielectric. The organization has 2596 authors who have published 4433 publications receiving 100878 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors focused on the general status of heavy metal contamination of soils, including the excessive heavy metal concentrations in crops and the assessment of the recent advanced technologies and future challenges.

153 citations

Journal ArticleDOI
TL;DR: In this paper, Dongliang Chao, Chun-Han Lai, Pei Liang, Qiulong Wei, Yue-Sheng Wang, Changrong (Rose) Zhu, Gang Deng... et al.
Abstract: Dongliang Chao, Chun‐Han (Matt) Lai, Pei Liang, Qiulong Wei, Yue‐Sheng Wang, Changrong (Rose) Zhu, Gang Deng ... et al.

151 citations

Journal ArticleDOI
TL;DR: A series of lattice-strained homogeneous NiSx Se1- x nanosheets@nanorods hybrids are designed and synthesized by a facile strategy, providing a new insight to regulate the lattice strain of advanced catalyst materials and further improve the performance of energy conversion technologies.
Abstract: Developing highly-efficient non-noble-metal electrocatalysts for water splitting is crucial for the development of clean and reversible hydrogen energy. Introducing lattice strain is an effective strategy to develop efficient electrocatalysts. However, lattice strain is typically co-created with heterostructure, vacancy, or substrate effects, which complicate the identification of the strain-activity correlation. Herein, a series of lattice-strained homogeneous NiSx Se1-x nanosheets@nanorods hybrids are designed and synthesized by a facile strategy. The NiS0.5 Se0.5 with ≈2.7% lattice strain exhibits outstanding activity for hydrogen and oxygen evolution reaction (HER/OER), affording low overpotentials of 70 and 257 mV at 10 mA cm-2 , respectively, as well as excellent long-term durability even at a large current density of 100 mA cm-2 (300 h), significantly superior to other benchmarks and the precious metal catalysts. Experimental and theoretical calculation results reveal that the generated lattice strain decreases the metal d-orbital overlap, leading to a narrower bandwidth and a closer d-band center toward the Fermi level. Thus, NiS0.5 Se0.5 possesses favorable H* adsorption kinetics for HER and lower energy barriers for OER. This work provides a new insight to regulate the lattice strain of advanced catalyst materials and further improve the performance of energy conversion technologies.

150 citations

Journal ArticleDOI
TL;DR: In this article, an electrochemical model for lithium polymer cells was developed and a parameter set for the model was measured using a series of laboratory experiments, which were used to identify processes that limit cell performance and for optimizing cell design.

150 citations

Journal ArticleDOI
TL;DR: In this paper, the role of carbon as a conductive additive was investigated for LiFePO4 cathodes with different carbon contents and showed that carbon increased the utilization of active material and the electrical conductivity of electrode, but decreased volumetric capacity of electrode.
Abstract: The electrochemical properties of LiFePO4 cathodes with different carbon contents were studied to determine the role of carbon as conductive additive. LiFePO4 cathodes containing from 0 to 12% of conductive additive ~carbon black or mixture of carbon black and graphite! were cycled at different C rates. The capacity of the LiFePO4 cathode increased as conductive additive content increased. Carbon increased the utilization of active material and the electrical conductivity of electrode, but decreased volumetric capacity of electrode. This composition ~LiFePO4 with 3 wt % of carbon and 3 wt % of Graphite! is suitable for HEV application.

150 citations


Authors

Showing all 2603 results

NameH-indexPapersCitations
John B. Goodenough1511064113741
Mark Sutton128100978703
Pierre Legendre9836682995
Jackie Y. Ying8958735694
Karim Zaghib6953316785
Geza Joos6751415880
M. V. Reddy6625415772
Kamal Al-Haddad6182821017
Jean-Pol Dodelet5916418473
Taha B. M. J. Ouarda5834912230
Michael R. Wertheimer5432011003
Richard Martin5433911465
Michel Armand5415244873
Marc Lucotte501698088
Abdelbast Guerfi492156739
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20231
202256
2021115
2020173
2019162
2018156