Results 31 to 40 of about 6,993 (249)

Insights Into CO2 Loss, pH Effects, and Tafel Kinetics in Ni Single Atom‐Driven Bicarbonate Electroreduction

Advanced Science, EarlyView.
Selective CO formation in bicarbonate electrolysis is achieved by retaining reactive CO2 and tuning pH, while the competing hydrogen evolution reaction occurs at the interface. The rate‐determining step couples the chemical equilibrium of bicarbonate/CO2 with electrochemical charge transfer, offering insight into optimizing reaction conditions for ...
Lin Li, Yi‐Jie Kong, Ting Zhang, Xu Han, Kristine Aalestrup, Steen Uttrup Pedersen, Xin‐Ming Hu, Kim Daasbjerg   +7 more
wiley   +1 more source

So sánh các đặc trưng quá trình cháy động cơ dual fuel cung cấp syngas kiểu hút và kiểu phun trực tiếp

Tạp chí Khoa học và Công nghệ, 2023
Phun trực tiếp syngas vào xi lanh làm tăng khối lượng khí nạp mới, tạo phân lớp hỗn hợp trong buồng cháy, giúp cải thiện công suất động cơ so với trường hợp cung cấp hỗn hợp syngas-không khí chuẩn bị trước trên đường nạp. So với động cơ diesel, công suất
Bùi Văn Ga, Bùi Thị Minh Tú, Hồ Trần Ngọc Anh   +2 more
doaj  

Synthesis Gas from Waste Plasma Gasification for Fueling Lime Kiln

Chemical Engineering Transactions, 2014
High fuel price coupled with the requirement to reduce the use of fossil fuels has created the interest to use low calorific value gases. Fuelling lime kilns with renewable fuels to displace fossil fuel is not a new idea and has been subject of many ...
G. Talebi, M. Van Goethem
doaj   +1 more source

Lattice Distortion‐Driven Metal Exsolution in Perovskite Oxides

Advanced Science, EarlyView.
This study elucidates the mechanism of lattice distortion‐driven exsolution through a combination of computational simulations and experimental approaches. Lattice distortion facilitates the formation of oxygen vacancies and subsequent metal segregation, thereby enhancing the exsolution behavior.
Yo Han Kim, Uchan Jeon, Hyeongwon Jeong, Bo‐Ram Won, Jeong Woo Han, Jae‐ha Myung   +5 more
wiley   +1 more source

Key Drivers of Activity and Selectivity in Cu‐Based Catalysts for Methanol Synthesis From CO2: Insights From Atomically Dispersed Promoters

Angewandte Chemie, EarlyView.
Mechanistic studies on model Cu─M/SiO2 catalysts (M = Zn, Ga, and In) reveal that promoters enable a formate spillover pathway from Cu to Mn+ (n = 2 or 3) sites. The promoter's electronic effect on formate bond strengths serves as a quantitative descriptor for activity and selectivity, balancing spillover dynamics with intermediate stabilization to ...
Nat Phongprueksathat, Gina Noh, Scott R. Docherty, Damian Vico van Berkel, Yannik Stiefel, Christophe Copéret, Atsushi Urakawa   +6 more
wiley   +2 more sources

Triple‐Stimuli Responsive Soft Robots with Photo‐Programmable Ferriferous Oxide Particle Patterns

Advanced Science
Magneto‐driven soft robots featuring remote and highly permeable controllability are considered promising, especially in biomedical and engineering applications.
Siwei Hu, Kexing Li, Weijia Nong, Zhong‐Wen Liu, Zhao‐Tie Liu, Yanhu Zhan, Jinqiang Jiang, Peng Yang, Guo Li   +8 more
doaj   +1 more source

Improvement of Municipal Solid Waste Syngas Premixed Flame with Cellular Structure on a Flat Burner

Energies, 2023
This research was conducted to study the flame instability of syngas derived from raw municipal solid waste (MSW) and its potential as a natural gas (NG) replacement in power generation. MSW syngas is a mixture of various components such as methane (CH4),
Amornrat Kaewpradap, Paweenuch Sarmarnjit, Pisit Korkeatkangwan, Kritchaniphat Sawatnuchart, Sumrerng Jugjai   +4 more
doaj   +1 more source

Towards syngas biorefineries: The potential of microbial consortia for syngas valorisation

Biotechnology Advances
Gasification has emerged as a promising platform to cope with recalcitrant organic waste within the framework of biomass-based biorefineries, producing syngas that can be fermented into valuable bioproducts. Despite its potential, syngas fermentation is based predominantly on pure cultures, which faces significant challenges, including the limited ...
García Casado, Silvia María, Muñoz Torre, Raúl, Lebrero Fernández, Raquel   +2 more
openaire   +3 more sources

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

An Experiment Study on Implementing Syngas on a Small Generator Set

ASEAN Journal on Science and Technology for Development
This paper presents an experiment on syngas's influence on the performance and pollutant characteristics of a mechanical diesel engine generator set. Using syngas as an external fuel is good for medium and light loads of less than 80%.
Bui Van Chinh, Khong Vu Quang, Khanh Nguyen Duc   +2 more
doaj   +1 more source