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Article
Chemistry, Physical
Changhui Zhou et al.
Summary: A novel photoelectric catalytic system, Co3O4/BiVO4 - MoNiCuOx/Cu, was proposed to efficiently produce H2 and remove TN in urine treatment. The key design involved the valence band position of BiVO4 photoanode and the co-catalyst of Co3O4. The PEC system exhibited excellent performance with significantly higher H2 production and TN removal compared to BiVO4, WO3, and TiO2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Yu-Yang Tai et al.
Summary: A core-shell structural Rh-CrOx loaded on Al3+ doped strontium titanate was used for simultaneous photocatalytic degradation of isopropanol and hydrogen production. A specially designed twin photoreactor was utilized, and with the help of an electron-mediator and an anion-exchanged membrane, high amounts of hydrogen gas were evolved through photocatalytic water splitting under simulated sunlight. The rate-limiting H2 rate was successfully overcome, indicating the potential of this system for efficient hydrogen production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Guobin Liu et al.
Summary: NH3 catalytic oxidation technology (NH3-SCO) has shown promise for direct conversion of NH3 to N2 and H2O. However, balancing the catalytic activity and selectivity remains a challenge. In this study, the redox properties and surface oxygen vacancies of a CoB2O4 catalyst were modulated using three elements (Co, Mn, Al) to enhance its activity. CoMn2O4, synthesized with Mn as the B-site element, exhibited increased surface oxygen vacancies and generated Mn3+-Mn4+ pairs that facilitated the redox properties, leading to improved catalytic activity and complete NH3 conversion at 150 degrees C. Additionally, using Mn as the B-site element also promoted the generation of Bronsted acid sites on the catalyst surface, improving its N2 selectivity (65% at 150 degrees C). In situ DRIFTs analysis revealed two reaction mechanisms over CoMn2O4, involving bidentate nitrate and hydrazine as the main intermediate species.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Liangmiao Zhang et al.
Summary: In this work, electric-/thermal-dual-responsive smart windows with a three-layer sandwiched structure were developed using H+/Li+ doped HPC-PAA hydrogel as a novel electrolyte. The windows can switch between highly transparent, thermochromic, electrochromic, and double-colored states. They possess excellent heat regulation ability, making them suitable for applications in building facades, energy harvesting, privacy protection, and color display.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Gaofei Xiao et al.
Summary: This study systematically investigated the impact of complex flue gas on the synergistic elimination of toluene and NOx over V2O5-MoO3(WO3)/TiO2 catalyst. It revealed that NO and SO2 had a mutual inhibitory effect, and NH3 reduced the selectivity of toluene oxidation. Additionally, multiple polycyclic aromatic hydrocarbons were detected in the exhaust emissions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yan Liu et al.
Summary: In this research, a novel Ce-doped mesoporous WO3 material was synthesized and showed excellent H2S gas sensing performance at low temperatures. A portable sensor device based on this material was also developed for real-time monitoring of H2S concentration on a smartphone.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sifan Zhang et al.
Summary: A novel Pd/CuO-Ni(OH)(2)/C catalyst was successfully synthesized and exhibited excellent electrocatalytic activity and durability in the oxidation of ethanol, attributed to the high dispersion of Pd and synergistic effects of CuO and Ni(OH)(2).
Article
Nanoscience & Nanotechnology
Jiachen Jiao et al.
Summary: A powerful approach for the selective reduction of nitrobenzene using light as the driving force has been developed by combining photosensitizers and electron-storable components in a cooperative photocatalysis fashion. In this study, a new precious metal-free photocatalyst, {ZnW-TPT}, was successfully prepared by incorporating a Zn-substituted monovacant Keggin polyanion and a photoactive organic bridging link. The {ZnW-TPT} photocatalyst exhibited excellent photoelectrochemical properties and demonstrated high efficiency in the reduction of nitrobenzene to anilines.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Jie Ouyang et al.
Summary: Controlling facet exposure can modulate the activity and selectivity of a photoanode. This study demonstrates that a WO3 photoanode with predominant exposure of {202} facets exhibits superior photoelectrocatalytic oxidation efficiency for glycerol, achieving high selectivity and Faraday efficiency for the valuable C3 products.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Xiaoxiang Wang et al.
Summary: A flower-like 0.1%WO3/CeO2 catalyst was fabricated with high-efficiency for the selective reduction of NOx by NH3. The flower-like structure promoted a more uniform dispersion of tungsten species on the support and a stronger interaction between WO3 and CeO2, resulting in increased acid sites and surface vacancies. The catalyst exhibited significant SCR performance, with 90% NOx conversion and 95% N2 selectivity within a wide temperature range. The study provides a new strategy for developing high-efficiency ceria supported NH3-SCR catalyst.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Ziting Zhu et al.
Summary: Covalent organic frameworks (COFs) are demonstrated as promising membrane materials for hydrogen peroxide (H2O2) enrichment. By modulating the composition of mixed linkers, the pore size of COF membranes can be tuned for selective separation of water and H2O2. Additionally, introducing hydrophilic linkers enhances the water capture ability of the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shiqi Zhou et al.
Summary: Ti3C2Tx-MXene-supported Ni SACs with ultralow onset potential and exceptional operational stability are successfully synthesized via a self-reduction strategy using Ti vacancies on the Ti3C2Tx MXene surface. Density functional theory calculations reveal a strong coupling of Ni single atoms and their surrounding C atoms, optimizing the electronic density of states and enhancing electrochemical activity.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Hongtao Zou et al.
Summary: A powerful and practical approach to biomass-based amine, reductive amination of furfural (1a) to furfurylamine (2a), was developed using Ru catalyst (Ru/BNC) supported on boron/nitrogen co-doped carbon (BNC) with hydrous hydrazine (N2H4·H2O) as a nitrogen source and hydrazone as an intermediate. The Ru/BNC catalyst exhibited high efficiency and selectivity in promoting 1a/N2H4-to-2a transformation with a yield exceeding 99%.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Agricultural Engineering
Junkai Zhao et al.
Summary: The inhibitory roles of hydroxylamine (NH2OH) and hydrazine (N2H4) on nitrite-oxidizing bacteria were investigated in a comparative study. The results showed that nitrite accumulation was achieved by adding NH2OH or N2H4, with NH2OH having a more significant effect. However, nitritation deteriorated after the cessation of inhibitors addition.
BIORESOURCE TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Lukas R. H. Gerken et al.
Summary: Nanoparticles can serve as radioenhancers in radiation therapy. This research investigates the dose enhancement capabilities of various nanoparticles based on their metal core composition and beam characteristics, providing design criteria for their optimal performance in specific radiotreatments.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jianmin Li et al.
Summary: A method to improve the efficiency of Sb-2(S,Se)(3) solar cells by using hydrazine hydrate solution post-treatment to modify CdS electron transport layer (ETL) is proposed in this study. The CdS ETL becomes smoother and the quality of Sb-2(S,Se)(3) thin films is improved after the treatment. Furthermore, the interfacial energy band alignment and recombination loss are both improved, resulting in a high efficient solar cell.
Article
Chemistry, Multidisciplinary
Yangyang Feng et al.
Summary: In this study, a new type of rechargeable Zn-hydrazine battery was proposed and realized, which can efficiently generate separated hydrogen through temporarily decoupled electrochemical hydrazine splitting. The battery exhibits low energy input and high energy efficiency, as well as outstanding long-term stability for continuous hydrogen production on demand, showing great potential for practical application.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Yiseul Yu et al.
Summary: The study demonstrates that AuPt alloys have high activity for the hydrazine oxidation reaction in a water electrolyzer system, and exhibit excellent stability and electrocatalytic activity. This is significant for achieving high-rate hydrogen fuel generation and the advancement of hydrazine fuel cells.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Muhammad Asim Mushtaq et al.
Summary: In this study, low-cost Mo-doped WO3@CdS porous hollow microspheres were synthesized and demonstrated as efficient catalysts for reducing gaseous N-2 into ammonia. The Mo-doping and interconnected porous heterostructures provide sufficient catalytic sites for effective photoelectrocatalytic N-2 reduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Qian Zhang et al.
Summary: This study presents a gas-liquid interface reaction strategy based on an aerophobicity surface, which improves the dehydrogenation rate of liquid hydrogen carriers by promoting rapid product removal. A hierarchically porous resin-grafted reduced graphene oxide aerogel is designed, featuring a superaerophobic surface and a structure-oriented interface reaction design. It achieves a record hydrogen evolution rate and high storage density.
Article
Chemistry, Physical
Jingshu Wang et al.
Summary: In this study, a new type of Ru nanoparticle/mesoporous N-doped carbon (Ru/MPNC) composite was constructed as a high-performance bifunctional electrocatalyst for low-voltage water electrolysis and high hydrogen production rate, outperforming commercial Pt/C. The composite, with robust Ru-N metal-support interaction formed from specific precursor, allows the exposed Ru sites to lower the water dissociation energy barrier, significantly enhancing the activity of oxygen evolution reaction and hydrazine oxidation reaction.
Article
Chemistry, Physical
Tong Cui et al.
Summary: This study successfully constructed Ru-doped FeP4 nanosheets as bifunctional electrocatalysts for simultaneous H2 production and hydrazine oxidation reactions, avoiding chlorine evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Yue Xuan et al.
Summary: In this study, a facile and low-cost method was proposed to prepare anti-lead catalysts using Fe2O3 from red mud as a sacrifice carrier. The catalysts showed higher resistance to lead poisoning and maintained good catalytic activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Qian Liu et al.
Summary: This study reports a remarkable electrocatalyst for the hydrazine oxidation reaction (HzOR) based on low-coordinated cobalt arrays. The catalyst demonstrates excellent performance in direct hydrazine fuel cells, with a low onset potential and a small Tafel slope. Density functional theory calculations suggest that the improved catalytic activity can be attributed to the weakened adsorption of N2H3* on low-coordinated cobalt sites. A prototype direct hydrazine fuel cell has been developed using this catalyst, achieving high open circuit voltage and maximal power density at ambient temperatures.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Applied
Bo Zhou et al.
Summary: This study investigates the electrochemical reaction behaviors and optimization of reaction kinetics of hydrazine electrooxidation at metal phosphides. Experimental results show that Co doping effectively adjusts the dehydrogenation kinetics of hydrazine electrooxidation, lowering the adsorption energy and boosting the reaction kinetics. This work represents a breakthrough in improving the catalytic performance of non-precious metal electrocatalysts for hydrazine electrooxidation and highlights an energy-saving electrochemical hydrogen production method.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Engineering, Environmental
Yue Xuan et al.
Summary: A new approach for preparing anti-lead catalysts using red mud as a sacrificial carrier has been proposed, showing promising benefits in maintaining high NOx conversion rates even after lead poisoning by preferentially bonding with lead ions to protect active sites.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
J. Rossmeisl et al.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2007)
Article
Chemistry, Physical
Jeff Greeley et al.
Article
Chemistry, Physical
JK Norskov et al.
JOURNAL OF PHYSICAL CHEMISTRY B
(2004)