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Amorphous electrocatalysts for urea oxidation reaction

Progress in Natural Science:Materials International 2024年第2期34卷 362-375页

作者： Fenghui Guo Dongle Cheng Qian Chen Hao Liu Zhiliang Wu ning Han bing-jie ni Zhijie Chen School of Materials Science and Technology China University of Geosciences Shenzhen Academy of Metrology and Quality Inspection Centre for Technology in Water and Wastewater School of Civil and Environmental Engineering University of Technology Sydney College of Safety and Environmental Engineering Shandong University of Science and Technology Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity Shandong University of Science and Technology Discipline of Chemical Engineering Western Australian School of Mines: Minerals Energy and Chemical Engineering Curtin University Department of Materials Engineering School of Civil and Environmental Engineering The University of New South Wales

Electrochemical urea oxidation reaction(UOR) is a promising alternative to oxygen evolution reaction(OER) for realizing energy-saving hydrogen production. Developing efficient electrocatalysts for UOR becomes a central challenge. Recently, amorphous materials have been extensively used as UOR catalysts because of their numerous defective sites and flexible electronic properties. In this review, recent advancements in the development of amorphous UOR electrocatalysts are analyzed. The UOR mechanism is discussed, and the design of amorphous catalysts is then analyzed. The main catalyst design strategies are illustrated, including nanostructure control,heteroatom doping, composition regulation, and heterostructure construction. Also, electrocatalysts' structureperformance correlation is interpreted. Perspectives in this field are proposed for guiding future studies on the development of high-performance amorphous catalysts towards energy sustainability.

关键词： Catalyst design Component regulation Heteroatom doping Heterostructures Hydrogen energy

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Tungsten pnictides for water electrolysis:advances and perspectives

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Tungsten 2024年第4期6卷 675-695页

作者： Xue Kang Xi-Han Tan ning Han Jian-Feng Hou Chen-Min Yao Zhi-jie Chen bing-jie ni Department of Chemistry and Chemical Engineering Lyuliang University Department of Materials Engineering State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of Education Hubei Key Laboratory of Stomatology School & Hospital of Stomatology Wuhan University School of Civil and Environmental Engineering The University of New South Wales

Hydrogen fuel is recognized as a promising energy carrier for the sustainable development of global energy system and the green hydrogen production via water electrolysis attracts great *** development of cost-effective electrocatalysts for water electrolysis is important for enhancing green hydrogen production ***,tungsten pnictides(phosphides and nitrides) have emerged as promising catalysts for water electrolysis,and efficient tungsten pnictide-based catalysts with different nanostructures,compositions,and surface chemical properties have been *** this review,recent progress in the design of tungsten pnictide-based electrocatalysts for water electrolysis is comprehensively *** synthesis of tungsten pnictide-based electrocatalysts are discussed ***,current achievements in developing efficient tungsten pnictide electrocatalysts for water electrolysis are detailed,and four key catalyst design strategies(i.e.,nanostructure control,heteroatom doping,defect engineering,and heterostructure design) are *** physicochemical properties-catalytic performance relationship of tungsten pnictide-based electrocatalysts is also *** last,perspectives in this field are put forward for guiding further research on the design and application of high-performance tungsten pnictide-based electrocatalysts.

关键词： Electrocatalysts Hydrogen evolution reaction Oxygen evolution reaction Tungsten nitrides Tungsten phosphides

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Reconstructed anti-corrosive and active surface on hierarchically porous carbonized wood for efﬁcient overall seawater electrolysis

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Science Bulletin 2024年第15期69卷 2337-2341页

作者： Zhijie Chen Wenfei Wei Xiaomin Xu Xiaosong Gu Changzhu Huang Wei Wei Zongping Shao bing-jie ni Hong Chen Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control SUSTech Energy Institute for Carbon NeutralitySchool of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China UNSW Water Research Centre School of Civil and Environmental EngineeringThe University of New South WalesSydney 2052Australia Key Laboratory of Comprehensive and Highly Efﬁcient Utilization of Salt Lake Resources Qinghai Institute of Salt LakesChinese Academy of SciencesXining 810008China WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerth 6845Australia Eastern Institute for Advanced Study Eastern Institute of TechnologyNingbo 315200China Centre for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneySydney 2007Australia

Seawater electrolysis for sustainable hydrogen fuel production emerges as an auspicious practice to decarbonize the global energy sector [1]. However, direct seawater electrolysis is severely challenged by the corrosion of anodes by chloride ions, the unwanted chloride oxidation reaction (Cl OR), and the low activity and high cost of catalysts [2].

关键词： corrosion seawater carbon

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Chain Elongation Using Native Soil Inocula:Exceptional n-Caproate Biosynthesis Performance and Microbial Mechanisms

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Engineering 2024年第8期39卷 262-272页

作者： Lin Deng Yang Lv Tian Lan Qing-Lian Wu Wei-Tong Ren Hua-Zhe Wang bing-jie ni Wan-Qian Guo State Key Laboratory of Urban Water Resource and the Environment Harbin Institute of TechnologyHarbin 150090China Centre for Technology in Water and Wastewater&School of Civil and Environmental Engineering University of Technology SydneySydneyNSW 2007Australia

This study demonstrates the feasibility and effectiveness of utilizing native soils as a resource for inocula to produce n-caproate through the chain elongation(CE)platform,offering new insights into anaerobic soil *** results reveal that all five of the tested soil types exhibit CE activity when supplied with high concentrations of ethanol and acetate,highlighting the suitability of soil as an ideal source for n-caproate *** with anaerobic sludge and pit mud,the native soil CE system exhibited higher selectivity(60.53%),specificity(82.32%),carbon distribution(60.00%),electron transfer efficiency(165.00%),and conductivity(0.59 ms∙cm^(-1)).Kinetic analysis further confirmed the superiority of soil in terms of a shorter lag time and higher yield.A microbial community analysis indicated a positive correlation between the relative abundances of Pseudomonas,Azotobacter,and Clostridium and n-caproate ***,metagenomics analysis revealed a higher abundance of functional genes in key microbial species,providing direct insights into the pathways involved in n-caproate formation,including in situ CO_(2)utilization,ethanol oxidation,fatty acid biosynthesis(FAB),and reverse beta-oxidation(RBO).The numerous functions in FAB and RBO are primarily associated with Pseudomonas,Clostridium,Rhodococcus,Stenotrophomonas,and Geobacter,suggesting that these genera may play roles that are involved or associated with the CE ***,this innovative inoculation strategy offers an efficient microbial source for n-caproate production,underscoring the importance of considering CE activity in anaerobic soil microbial ecology and holding potential for significant economic and environmental benefits through soil consortia exploration.

关键词： Soil Chain elongation n-caproate Reverse beta-oxidation Fatty acid biosynthesis Metagenomics

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Electrocatalysis-driven sustainable plastic waste upcycling

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Electron 2024年第2期2卷 53-84页

作者： Gaihong Wang Zhijie Chen Wei Wei bing-jie ni Centre for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneySydneyNew South WalesAustralia UNSW Water Research Centre School of Civil and Environmental EngineeringThe University of New South WalesSydneyNew South WalesAustralia

With large quantities and natural resistance to degradation,plastic waste raises growing environmental concerns in the *** achieve the upcycling of plastic waste into value-added products,the electrocatalytic-driven process is emerging as an attractive option due to the mild opera-tionconditions,highreactionselectivity,***,this review provides a comprehensive overview of the upgrading of plastic waste via ***,key electrooxidation processes including the target products,intermediates and reaction pathways in the plastic electro-reforming process are ***,advanced electrochemical systems,including the integration of anodic plastic monomer oxidation and value-added cathodic reduction and photo-involved electrolysis processes,are *** design strategies of electrocatalysts with enhanced activity are highlighted and catalytic mechanisms in the electrocatalytic oxidation of plastic waste are *** promote the electrochemistry-driven sustainable upcycling of plastic waste,challenges and opportunities are further put forward.

关键词： catalyst design electrocatalytic reforming electrochemical oxidation hydrogen energy plastic waste

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Unlocking the electrocatalytic activity of natural chalcopyrite using mechanochemistry

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Journal of Energy Chemistry 2022年第5期31卷 275-283页

作者： Zhijie Chen Renji Zheng Wenfei Wei Wei Wei bing-jie ni Hong Chen Centre for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneyNSW 2007Australia State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials(SKLISEM)School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055GuangdongChina

Manipulating the structure self-reconstruction of transition metal sulfide-based(pre)catalysts during the oxygen evolution reaction(OER) process is of great interest for developing cost-effective OER catalysts,which remains a central challenge. Here we realize a deep structure self-reconstruction of natural chalcopyrite to unlock its OER performance via mechanochemical activation. Compared with the manually milled counterpart(CuFeS_(2)-HM), the mechanically milled catalyst(CuFeS_(2)-BM) with a reduced crystallinity exhibits a 7.11 times higher OER activity at 1.53 V vs. RHE. In addition, the CuFeS_(2)-BM requires a low overpotential of 243 mV for generating 10 mA cm^(-2) and exhibits good stability over 24 h. Further investigations suggest that the excellent OER performance of CuFeS_(2)-BM mainly originates from the decreased crystallinity induced the in situ deep structure self-reconstruction of the originally sulfides into the electroactive and stable metal(oxy)hydroxide phase(e.g., a-Fe OOH) via S etching under OER conditions. This study demonstrates that regulating the crystallinity of catalysts is a promising design strategy for developing highly efficient OER catalysts via managing the structure self-reconstruction process, which can be further extended to the design of efficient catalysts for other advanced energy conversion devices. In addition, this study unveils the great potentials of engineering abundant natural minerals as cost-effective catalysts for diverse applications.

关键词： Mechanochemistry Crystallinity Oxygen evolution reaction Self-reconstruction Mineral electrocatalysts

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Small moleculeπ-conjugated electron acceptor for highly enhanced photocatalytic nitrogen reduction of BiOBr

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Journal of Materials Science & Technology 2022年第14期109卷 276-281页

作者： Derek Hao Tianyi Ma Baohua Jia Yunxia Wei Xiaojuan Bai Wei Wei bing-jie ni Centre for Technology in Water and Wastewater(CTWW) School of Civil and Environmental EngineeringUniversity of Technology Sydney(UTS)SydneyNSW 2007Australia Centre for Translational Atomaterials Faculty of ScienceEngineering and TechnologySwinburne University of TechnologyHawthornVIC 3122Australia College of Chemistry and Chemical Engineering Lanzhou City UniversityLanzhou 730070China Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control Beijing University of Civil Engineering and ArchitectureBeijing 102612China

Artificial ammonia synthesis using solar energy is of great significance as it can help narrow the gap to the zero-net emission ***,the current photocatalytic activity is generally too low for mass ***,we report a novel bismuth bromide oxide(BiOBr)-Tetracyanoquinodimethane(TCNQ)photocatalyst prepared via a facile self-assembly *** to the well-match band structure of TCNQ and Bi OBr,the separation and transfer of photogenerated electron-hole pairs were significantly *** importantly,the abundant delocalizedπelectrons of TCNQ,and the electron-withdrawing property of TNCQ made electrons efficiently accumulated on the catalysts,which can strengthen the adsorption and cleavage of nitrogen *** a result,the photocatalytic activity increased *** highest ammonia yield of the optimized sample reached 2.617 mg/(h gcat),which was 5.6-fold as that of pristine BiOBr and higher than the reported BiOBr-based *** isotope labeled^(15)N_(2)was used to confirm that the ammonia is formed form the fixation of N_(2).Meanwhile,the sample also had good *** 4-time usage,the photocatalysts still had about 81.8%as the fresh *** results of this work provide a new way for optimizing the electronic structure of photocatalysts to achieve highly efficient photochemical N_(2) reduction.

关键词： BiOBr TCNQ nitrogen reduction Electron accepter Photocatalysis。

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Dual‑Doped nickel Sulfide for Electro‑Upgrading Polyethylene Terephthalate into Valuable Chemicals and Hydrogen Fuel

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纳微快报:英文版 2023年第11期15卷 385-399页

作者： Zhijie Chen Renji Zheng Teng Bao Tianyi Ma Wei Wei Yansong Shen bing‑jie ni Centre for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneySydneyNSW 2007Australia School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083People’s Republic of China School of Biology Food and Environment EngineeringHefei UniversityHefei 230601People’s Republic of China School of Science STEM CollegeRMIT UniversityMelbourneVIC 3000Australia School of Chemical Engineering University of New South WalesSydneyNSW 2052Australia

Electro-upcycling of plastic waste into value-added chemicals/fuels is an attractive and sustainable way for plastic waste ***,electrocatalytically converting polyethylene terephthalate(PET)into formate and hydrogen has aroused great interest,while developing low-cost catalysts with high efficiency and selectivity for the central ethylene glycol(PET monomer)oxidation reaction(EGOR)remains a ***,a high-performance nickel sulfide catalyst for plastic waste electro-upcycling is designed by a cobalt and chloride co-doping *** from the interconnected ultrathin nanosheet architecture,dual dopants induced upshifting d band centre and facilitated in situ structural reconstruction,the Co and Cl co-doped ni_(3)S_(2)(Co,Cl-niS)outperforms the singledoped and undoped analogues for *** self-evolved sulfide@oxyhydroxide heterostructure catalyzes EG-to-formate conversion with high Faradic efficiency(>92%)and selectivity(>91%)at high current densities(>400 mA cm^(−2)).Besides producing formate,the bifunctional Co,Cl-niS-assisted PET hydrolysate electrolyzer can achieve a high hydrogen production rate of 50.26 mmol h^(−1)in 2 M KOH,at 1.7 *** study not only demonstrates a dual-doping strategy to engineer cost-effective bifunctional catalysts for electrochemical conversion processes,but also provides a green and sustainable way for plastic waste upcycling and simultaneous energy-saving hydrogen production.

关键词： Hydrogen energy Electro-upcycling Structural reconstruction Organic waste upcycling d Band centre

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Design of earth-abundant amorphous transition metal-based catalysts for electrooxidation of small molecules:Advances and perspectives

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SusMat 2023年第3期3卷 290-319页

作者： Zhijie Chen ning Han Renji Zheng Zijie Ren Wei Wei bing-jie ni Centre for Technology inWater and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneyUltimoNew South WalesAustralia Department of Materials Engineering KU LeuvenLeuvenBelgium School of Minerals Processing and Bioengineering Central South UniversityChangshaHunanChina School of Resources and Environmental Engineering Wuhan University of TechnologyWuhanChina

Electrochemical oxidation of small molecules(e.g.,water,urea,methanol,hydrazine,and glycerol)has gained growing scientific interest in the fields of electrochemical energy conversion/storage and environmental *** cost-effective catalysts for the electrooxidation of small molecules(ESM)is thus crucial for improving reaction ***,earth-abundant amorphous transition metal(TM)-based nanomaterials have aroused souring interest owing to their earth-abundance,flexible structures,and excellent electrochemical *** of amorphous TM-based nanomaterials have been designed and used as promising ESM ***,recent advances in the design of amorphous TM-based ESM catalysts are comprehensively *** features(e.g.,large specific surface area,flexible electronic structure,and facile structure reconstruction)of amorphous TM-based ESM catalysts are first ***,the design of various TM-based catalysts with advanced strategies(e.g.,nanostructure design,component regulation,heteroatom doping,and heterostructure construction)is fully scrutinized,and the catalysts’structure-performance correlation is *** perspectives in the development of cost-effective amorphous TM-based catalysts are then *** review is expected to provide practical strategies for the design of next-generation amorphous electrocatalysts.

关键词： amorphous catalysts catalyst design electrocatalytic conversion electrochemical oxidation transition metals

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Recent advances in waste-derived functional materials for wastewater remediation

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Eco-Environment & Health 2022年第2期1卷 86-104页

作者： Zhijie Chen Wei Wei Hong Chen bing-jie ni Center for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneyNSW2007Australia State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control Shenzhen Key Laboratory of Interfacial Science and Engineering of MaterialsSchool of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China

Water pollution is a major concern for public health and a sustainable *** is urgent to purify wastewater with effective methods to ensure a clean water *** wastewater remediation techniques rely heavily on functional materials,and cost-effective materials are thus highly *** great environmental and economic significance,developing waste-derived materials for wastewater remediation has undergone explosive growth ***,the applications of waste(e.g.,biowastes,electronic wastes,and industrial wastes)-derived materials for wastewater purification are comprehensively *** strategies for turning wastes into functional materials are firstly summarized,including pyrolysis and combustion,hydrothermal synthesis,sol–gel method,co-precipitation,and ball ***,critical experimental parameters within different design strategies are ***,recent applications of waste-derived functional materials in adsorption,photocatalytic degradation,electrochemical treatment,and advanced oxidation processes(AOPs)are *** mainly focus on the development of efficient functional materials via regulating the internal and external characteristics of waste-derived materials,and the material’s property-performance correlation is also ***,the key future perspectives in the field of waste-derived materials-driven water remediation are highlighted.

关键词： Wastewater remediation Solid wastes Waste-derived materials Adsorption Advanced oxidation processes Catalytic degradation

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