Results 51 to 60 of about 8,513 (257)

Bifunctional Ni-Fe/NiMoNx nanosheets on Ni foam for high-efficiency and durable overall water splitting

Catalysis Communications, 2022
Fabricating bifunctional electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is challengeable. Herein, an efficient and durable bifunctional Ni-Fe/NiMoNx electrocatalyst has been synthesized on nickel foam.
Yu Qiu, Mengxiao Sun, Jia Cheng, Junwei Sun, Deshuai Sun, Lixue Zhang   +5 more
doaj   +1 more source

Ir nanoparticles with ultrahigh dispersion as oxygen evolution reaction (OER) catalysts: synthesis and activity benchmarking

Catalysis Science & Technology, 2019
In this work, we present a facile and straightforward approach to synthesize, activate and benchmark small, i.e. 1.6 nm in diameter, Ir nanoparticles (NP) as oxygen evolution reaction (OER) catalysts.
Francesco Bizzotto, Jonathan Quinson, Alessandro Zana, Jacob J. K. Kirkensgaard, Alexandra Dworzak, Mehtap Oezaslan, Matthias Arenz   +6 more
openaire   +4 more sources

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Interfacial Acid Sites‐Mediated ZnO‐Based Electrocatalysts for Sustainable Dual‐Pathway H2O2 Production and Rechargeable Zn‐H2O2 Electrochemical Cell

Advanced Materials, EarlyView.
In this work, a synergistic strategy introduces interfacial acid sites, oxygen vacancies, and built‐in electric field into ZnSe/ZnO heterojunction to optimize its electronic structure and electrode micro‐environment. This overcomes sluggish oxygen reduction reaction kinetics and low H2O2 selectivity, achieving record H2O2 productivity (754.4 M gcat−1 ...
Lijun Yang, Sitong Liu, Wencheng He, Fengzhan Sun, Shubing Bi, Hongge Pan, Lingfeng Zhu, Tianyi Ma, Lei Zhang   +8 more
wiley   +1 more source

Spinel-Type Metal Oxide Nanoparticles Supported on Platelet-Type Carbon Nanofibers as a Bifunctional Catalyst for Oxygen Evolution Reaction and Oxygen Reduction Reaction

Electrochemistry, 2020
Development of highly active bifunctional electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is required for air electrodes of zinc-air secondary batteries (ZAB). In this study, we synthesize spinel-type MnCo2O4 (MCO)
Yuki SATO, Sho KITANO, Damian KOWALSKI, Yoshitaka AOKI, Naoko FUJIWARA, Tsutomu IOROI, Hiroki HABAZAKI   +6 more
doaj   +1 more source

From Behavior to Dynamics: Decoding Carrier Roles in Cu‐based Photocathodes for Solar‐Driven CO2 Reduction

Advanced Materials, EarlyView.
The performance of Cu‐based photocathodes in photoelectrochemical CO2 reduction is not governed by catalytic sites alone, but by the dynamic journey of photogenerated carriers. This review decodes how carrier generation, recombination, transport, accumulation, extraction, and electrolyte coupling shape catalytic activity, selectivity, and stability ...
Yi‐Cheng Wang, Chenyu Xu, Peng‐Fei Sui, Yi Liu, Xiaolei Wang, Jing‐Li Luo   +5 more
wiley   +1 more source

Organic–Inorganic Hybrid Hole‐Selective Layer Interface Engineering for Enhanced Photoelectrochemical Water Oxidation on Bismuth Vanadate Photoanodes

Advanced Materials, EarlyView.
In this research the [4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl] phosphonic acid (Me‐4PACz) self‐assembled monolayers (SAMs) to bond with NiOx is first designed to be the organic‐inorganic hybrid hole‐selective layers, which promotes the BiVO4 photoanodes photoelectrochemical water splitting performance with 6.9 mA cm−2 photocurrent at 1.23 VRHE and at ...
Kaige Tian, Dingyanyan Zhou, Jiafan Zhang, Zhennan Wang, Yujin Ji, Youyong Li, Hui Li, Zhong‐Yong Yuan, Shuit‐Tong Lee, Tianyi Ma, Junqing Yan   +10 more
wiley   +1 more source

Surface Reconstruction‐Promoted Alkaline Overall Water Splitting on Fe‐Doped Ni2P/NiMoO4 Composite Structure

Electron
Nickel‐based catalysts hold significant promise for efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) due to their dynamic reconstruction capability. However, uncontrolled reconstruction promotes lattice oxygen participation,
Wenxin Jin, Mengxin Chen, Hao Wu, Siqi Xie, Siteng Wang, Bo Song, Yunchen Du, Xun Cao, Bin Zhang, Ruitao Wang, Ping Xu   +10 more
doaj   +1 more source

Mechanistically Interpretable Artificial Intelligence for Designing Oxygen Electrocatalysts

Advanced Materials, EarlyView.
Mechanistically interpretable artificial intelligence screens nearly seven million perovskite compositions and identifies key descriptors—d‐p hybridization and densification resistance—that govern oxygen electrocatalysis. The discovered BaCo0.8Nb0.1Zr0.1O3‐δ achieves a record 2.68 W cm−2 peak power density at 600°C with over 500 h of durable operation ...
Xueyu Hu, Yucun Zhou, Haoyu Li, Zheyu Luo, Nai Shi, Yong Ding, Weining Wang, Weilin Zhang, Doyeub Kim, Chanho Kim, Yoojin Ahn, Nikhil Govindarajan, Minda Zou, Zhijun Liu, Yuefeng Song, Meilin Liu   +15 more
wiley   +1 more source

Fe-S dually modulated adsorbate evolution and lattice oxygen compatible mechanism for water oxidation

Nature Communications
Simultaneously activating metal and lattice oxygen sites to construct a compatible multi-mechanism catalysis is expected for the oxygen evolution reaction (OER) by providing highly available active sites and mediate catalytic activity/stability, but ...
Xu Luo, Hongyu Zhao, Xin Tan, Sheng Lin, Kesong Yu, Xueqin Mu, Zhenhua Tao, Pengxia Ji, Shichun Mu   +8 more
doaj   +1 more source