Results 51 to 60 of about 1,061,404 (353)

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Sustainable Conversion of Agricultural Biomass into Renewable Energy Products: A Discussion

BioResources, 2022
This paper discusses the use of agricultural biomass as a promising resource for renewable energy production, e.g., bio-oil and biogas via pyrolysis and catalysis, among other technologies.
Quan Zhou, Quyet Van Le, Han Yang, Haiping Gu, Yafeng Yang, Christian Sonne, Meisam Tabatabaei, Su Shiung Lam, Cheng Li, Xiangmeng Chen, Wanxi Peng   +10 more
doaj   +1 more source

Using a dual plasma process to produce cobalt--polypyrrole catalysts for the oxygen reduction reaction in fuel cells -- part I: characterisation of the catalytic activity and surface structure

, 2012
A new dual plasma coating process to produce platinum-free catalysts for the oxygen reduction reaction in a fuel cell is introduced. The catalysts thus produced were analysed with various methods.
Brüser, Volker, Kummer, Kurt, Quade, Antje, Vyalikh, Denis, Walter, Christian, Weltmann, Klaus-Dieter   +5 more
core   +1 more source

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

Advanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor, Youwei Ma, Hyunwoo Park, Tae‐Lim Choi, Damien Guironnet, Francesco Stellacci   +5 more
wiley   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Strategies to Improve Quality and Yield of Pyrolysis Bio-oils

Chemical Engineering Transactions, 2022
Crude bio-oil obtained from fast pyrolysis of biomass and wastes is typically characterised by the presence of high levels of oxygenated compounds, which are mainly responsible for its unfavourable characteristics (e.g., low heating value, high acidity ...
Paola Brachi, Renata Migliaccio, Elvis T. Ganda, Massimo Urciuolo, Giovanna Ruoppolo, Antonio Coppola, Fabrizio Scala, Piero Salatino   +7 more
doaj   +1 more source

Catalytic Fast Pyrolysis: A Review [PDF]

Energies, 2013
Catalytic pyrolysis is a promising thermochemical conversion route for lignocellulosic biomass that produces chemicals and fuels compatible with current, petrochemical infrastructure. Catalytic modifications to pyrolysis bio-oils are geared towards the elimination and substitution of oxygen and oxygen-containing functionalities in addition to ...
Theodore Dickerson, Juan Soria
openaire   +2 more sources

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source

Catalytic pyrolysis of Alhagi sparsifolia Shap biomass over HZSM-5: Thermal behavior, kinetics, thermodynamics and evolved products

Industrial Crops and Products
Biomass feedstocks and their complex components can yield a wide range of pyrolysis products. Furthermore, catalytic pyrolysis has emerged as a promising technology for the conversion of biomass into high-value chemicals.
Zhitong Yao, Jiayao Tong, Jingjing Jiang, Qiang Yu, Obid Tursunov, Xiaobo Wang, Jie Liu, Wei Qi   +7 more
doaj   +1 more source

Ni-modified dolomite for the catalytic deoxygenation of pyrolyzed softwood and non-wood to produce bio-oil

Results in Engineering, 2022
This study investigated the effect of process conditions during the catalytic pyrolysis of softwood and non-wood on the pyrolysis product. Ni modified on calcined dolomite (Ni-DM) was used to determine the effectiveness of the catalytic activity and the ...
Kittidech Praserttaweeporn, Tharapong Vitidsant, Witchakorn Charusiri   +2 more
doaj   +1 more source