Results 41 to 50 of about 8,513 (257)

Insight toward the role of Fe in layered Ni(OH)2 for electrochemical oxidations of water and 5-hydroxymethylfurfural

Catalysis Communications, 2022
5-hydroxymethylfurfural oxidation reaction (HMFOR) has been considered as promising anodic reaction alternating oxygen evolution reaction (OER). The introduction of Fe into layered nickel hydroxide has been effective strategy to enhance performance of ...
Bora Seo, Jongin Woo, Eunji Kim, Seok-Hyeon Cheong, Dong Ki Lee, Hyunjoo Lee   +5 more
doaj   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

Co3Mo3N—An efficient multifunctional electrocatalyst

The Innovation, 2021
Efficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices. However, current precious metal-based electrocatalysts do not perform well across the full range of reactions and
Yao Yuan, Samira Adimi, Tiju Thomas, Jiacheng Wang, Haichuan Guo, Jian Chen, J. Paul Attfield, Francis J. DiSalvo, Minghui Yang   +8 more
doaj   +1 more source

The oxygen reduction (ORR) and evolution (OER) reaction at perovskites in alkaline electrolyte

, 2021
In this study , we tried to investigate catalytic activity towards ORR and OER on silver, gold and glassy carbon electrodes by loading of spinnel type cobalt oxide nanoparticles and perovskites ( MnCoO, LSF , LSCF) in alkaline electrolyte lithium hydroxide via RRDE measurements.Polarization curves showed cobalt oxide nanopartices on silver, glassy ...
openaire   +2 more sources

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

Advanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan, Soshan Cheong, Sankhadip Saha, Qinyu Li, Xiaoran Zheng, Samuel V. Somerville, Agus R. Poerwoprajitno, Priyank V. Kumar, Liming Dai, J. Justin Gooding, Richard D. Tilley   +10 more
wiley   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

Advanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He, Zhiqi Wang, Jiaqi Guan, Younan Xia   +3 more
wiley   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Dual Integrating Oxygen and Sulphur on Surface of CoTe Nanorods Triggers Enhanced Oxygen Evolution Reaction

Advanced Science, 2023
The bottleneck of large‐scale implementation of electrocatalytic water‐splitting technology lies in lacking inexpensive, efficient, and durable catalysts to accelerate the sluggish oxygen evolution reaction kinetics.
Xin Wang, Zhelin Mao, Xin Mao, Ximiao Hu, Feiyue Gao, Minrui Gao, Qi‐Long Wu, Xiao Lyu, Aijun Du, Xiangsheng Xu, Yi Jia, Lei Wang   +11 more
doaj   +1 more source

Laplace‐Pressure‐Stabilized Rutile Solid‐Solution Catalysts for Acidic Water Oxidation: Enabling DSA‐Inspired Compositions

Advanced Materials, EarlyView.
The miscibility of foreign elements in rutile‐type IrO2 and SnO2 is greatly enhanced under high Laplace pressure, where their crystal size is reduced to the nanoscale. This enhancement leads to the successful synthesis of DSA‐composition solid‐solution nanocatalysts with notable durability during the acidic OER in water electrolysis.
Chang Hyun Park, Juneseo Ahn, Dongho Kim, Hyeonsoo Wi, Ki Hyun Park, Jun Seop Kim, Sangmyeong Lee, Sung‐Yoon Chung   +7 more
wiley   +1 more source

Sol-gel derived low crystalline manganese-iron phosphide: a stable and efficient electrocatalyst for oxygen evolution reaction

Discover Catalysis
The sluggish kinetics of the oxygen evolution reaction (OER) is a primary bottleneck that hampers the overall efficiency of water electrolysis. The exploration of transition metal phosphides (TMPs) as promising electrocatalysts for OER has attracted ...
Alok Pratap Singh, Susanta Ghosh
doaj   +1 more source