Results 81 to 90 of about 111,764 (351)

Rational design of sustainable transition metal-based bifunctional electrocatalysts for oxygen reduction and evolution reactions

, 2020
Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are two critical processes for metal-air batteries (MABs) that afford large energy capacity and high power density. However, both reactions suffer from sluggish kinetics.
Xu, Li, Liu, Xianhu, Qiu, Jingxia, Shanqing Zhang, Zhang, Shanqing, Tian, Yuhui, Yuhui Tian, Xianhu Liu, Jingxia Qiu, Li Xu   +9 more
core   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Design, synthesis, and progress of covalent organic frameworks (COFs)-based electrocatalysts for valorisation of biomass-derived platform chemicals

Materials Today Advances
The heavy reliance on fossil-based industries for basic chemicals not only contributes to severe global environmental problems but also hampers the sustainable development of the whole society. In addressing this issue, electrocatalysis utilizing biomass-
Changyu Weng, Hongmei Yuan, Lungang Chen, Xinghua Zhang, Qi Zhang, Longlong Ma, Jianguo Liu   +6 more
doaj   +1 more source

Construction of Hierarchical PdAgAu Nanorings/MXene–GO Electrocatalysts for Efficient and Ultrastable Hydrogen Evolution Reaction

Advanced Energy & Sustainability Research, 2023
High overpotential and poor long‐term operation stability of electrocatalysts are two major barriers for the hydrogen evolution reaction (HER). Herein, 2D ultrathin PdAgAu nanorings are synthesized and further self‐assembled on Ti2CTx–graphene oxide (GO)
Chaohai Sun, Yong Tan, Yi Huang, Fang Guo, Linghan Deng, Si Cheng   +5 more
doaj   +1 more source

Designing Electrocatalysts for Hydrogen Evolution in Saline Electrolyte Using Rapid Synthesis on Carbon Paper Supports

, 2023
Generating hydrogen from brackish or seawater could enable flexible energy generation, de-centralized electricity storage, and decreased reliance on energy-intensive water purification for hydrogen evolution reaction (HER).
Sangmin, Jeong, Melissa, King, Connor, Sullivan, Michael, Ross   +3 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Defect‐engineered two‐dimensional transition metal dichalcogenides towards electrocatalytic hydrogen evolution reaction

Carbon Energy, 2023
Recently, two‐dimensional transition metal dichalcogenides (TMDs) demonstrated their great potential as cost‐effective catalysts in hydrogen evolution reaction.
Hang Su, Xiaodong Pan, Suqin Li, Hao Zhang, Ruqiang Zou   +4 more
doaj   +1 more source

Activation strategies of water-splitting electrocatalysts

, 2020
Electrocatalysts featuring high activity, selectivity and stability are urgently needed in solar-electricity powered energy-conversion technologies. In the past decade, various electrocatalysts have been demonstrated to be electrocatalytically active ...
Zhao, Huijun, Zu, Meng Yang, Yin, Huajie, Liu, Peng Fei, Fu, Huai Qin, Yang, Hua Gui   +5 more
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

Applicability of analytical protocols for the characterisation of carbon-supported platinum group metal fuel cell electrocatalysts

South African Journal of Science, 2009
The nanoparticulate size of fuel cell electrocatalysts raises significant challenges in the analytical techniques used in their structural and electrochemical characterisation. For this reason, the applicability of analytical protocols in the qualitative
M. Williams, L. Khotseng, Q. Naidoo, L. Petrik, A. Nechaev, V. Linkov   +5 more
doaj