Results 81 to 90 of about 4,417 (299)

Hydrogen (H2) Recovery From Hydrogen Sulfide (H2S): Current Technologies, Challenges, and Future Outlook

Advanced Science, EarlyView.
ABSTRACT Hydrogen sulfide (H2S) can be transformed into hydrogen (H2) through several chemical and catalytic processes, offering a promising route for both waste treatment and clean H2 production. This colorless, flammable, and toxic gas is found abundantly in swamps, volcanoes, hot springs, sewages, other natural gas fields, and even in refineries and
Divyesh Cirikonda, Astrid Campos‐Mata, Sehmus Ozden, Shreyasi Chattopadhyay, Pulickel M. Ajayan   +4 more
wiley   +1 more source

Low-Rank Coal Supported Ni Catalysts for CO2 Methanation

, 2021
As renewable energy source integration increases, P2G technology that can store surplus renewable power as methane is expected to expand. The development of a CO2 methanation catalyst, one of the core processes of the P2G concept, is being actively ...
Sangdo Kim, Donghyuk Chun, Renata Lippi, Hokyung Choi, Hyuk Im, Jiho Yoo, Soohyun Kim, Yunxia Yang, Sihyun Lee   +8 more
core   +1 more source

High‐Throughput Screening and Interpretable Machine Learning for Rational Design of Bimetallic Catalysts for Methane Activation

Advanced Science, EarlyView.
ABSTRACT Methane's efficient catalytic removal is vital for sustainable development. Bimetallic catalysts, though promising for methane activation, pose a design challenge due to their complex compositional space. This work introduces an integrated framework that combines high‐throughput density functional theory (DFT) and interpretable machine ...
Mingzhang Pan, Tian Zhang, Jiawei Dong, Yubao Xie, Kaifeng Zhong, Wei Guan, Haiqiao Wei, Changcheng Fu, Yaqiong Su   +8 more
wiley   +1 more source

Environmental Insights and Sustainability Opportunities for Scaled‐Up MXene Production Without Etching

Advanced Science, EarlyView.
Through a systematic and comprehensive analysis of the environmental impacts for the emerging MXene synthesis pathways, this study presents process transformation and optimization opportunities for low‐carbon MXene production from laboratory to industrial scales.
Yushuai Huang, Peng Peng, Maoqiao Xiang, Fen Yue, Jiangyan Wang, Wenwei Liu, Qingshan Zhu   +6 more
wiley   +1 more source

Harnessing the Beneficial Attributes of Ceria and Titania in a Mixed-Oxide Support for Nickel-Catalyzed Photothermal CO2 Methanation

Engineering, 2017
Solar-powered carbon dioxide (CO2)-to-fuel conversion presents itself as an ideal solution for both CO2 mitigation and the rapidly growing world energy demand.
Ee Teng Kho, Salina Jantarang, Zhaoke Zheng, Jason Scott, Rose Amal   +4 more
doaj   +1 more source

A fluidized-bed model for NiMgW-catalyzed CO2 methanation

, 2020
The reduction of carbon dioxide to methane by hydrogen (“CO2 methanation”) using renewable energy is a promising process for recycling CO2. Better catalysts and better reactors are both required for the practical application of CO2 methanation.
Dai, Yihu, Yang, Yanhui, Jia, Chunmiao, Chew, Jia Wei   +3 more
core   +1 more source

Reaction‐Induced Reversible Reconstruction Enhanced Ni‐MgO/CaO Dual Functional Material for Stable CO2 Capture and In Situ Conversion

Advanced Science, EarlyView.
A highly dispersed NiO‐MgO solid solution (MgxNi1‐xO) is created in a hierarchically porous Ca‐based matrix to protect Ni and CaO nanoparticles against carbon deposition and sintering. Owing to the reversible reconstruction of MgxNi1‐xO, this superior structure is self‐regenerative in the calcium looping dry reforming of methane process, thereby ...
Hao Xu, Chen Hou, Jiawei Zhong, Chuande Huang, Wei Wei, Jiawei Hu   +5 more
wiley   +1 more source

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

Advanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang, Yuhuan Li, Quanxin Wang, Deng Li, Pakkin Leong, Meng Wang, Shi Feng, Runyang Mo, Xianjin Shi, Xiaohui Li, Gangqiang Zhu, Chipui Tang   +11 more
wiley   +1 more source

A 3D-printed metal-supported gyroid Ni/Al2O3 catalyst for CO2 methanation

Journal of CO2 Utilization
The utilization of 3D-printing in catalyst production for CO2 methanation has emerged as a response to the challenges posed by the highly exothermic reaction and high gas space velocity, conditions that necessitate enhanced heat and mass transfer while ...
Kedar Bharat Jivrakh, Ayesha Alkhoori, Miguel Palomino, L.M. Andrés-Olmos, Antonio Chica, Fernando Rey, Susana Valencia, Kyriaki Polychronopoulou, Rashid Abu Al-Rub, Nahla Alamoodi, Georgios N. Karanikolos   +10 more
doaj   +1 more source

Ceria-Zirconia encapsulated Ni nanoparticles for CO2 methanation [PDF]

, 2019
We prepared uniformly-sized Ni nanoparticles on ceria-zirconia (CZ) as model catalysts for CO2 methanation in the context of renewable energy storage.
Groeneveld, Esther, van Helden, J.W.A., Parastaev, Alexander, Pidko, Evgeny, Hensen, Emiel, Vrijburg, Wilbert   +5 more
core   +1 more source