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Journal of Energy Chemistry 2019年第7期28卷 33-42页

作者： Yixing Shen Feng Peng yonghai cao Jianliang Zuo Hongjuan Wang Hao Yu School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510640GuangdongChina Guangzhou Key Laboratory for New Energy and Green Catalysis School of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006GuangdongChina

Renewable lignin used for synthesizing materials has been proven to be highly potential in specific ***,we report a simple method to synthesize nitrogen and sulfur co-doped carbon nanosheets by using bagasse lignin,denoted as lignin-derived carbon(LC).By adjusting the ratio of nitrogen source and annealing temperature,we obtained the ultrathin graphitic lignin carbon(LC-4-1000)with abundant wrinkles with high surface area of 1208 m2g_1 and large pore volume of 1.40 cm3g_*** alkaline medium,LC-4-1000 has more positive half-wave potential and nearly current density compared to commercial Pt/C for oxygen reduction reaction(ORR).More importantly,LC-4-1000 also exhibits comparable activity and superior stability for ORR in acid medium due to its high graphitic N ratio and a direct four electron pathway for *** study develops a cost-effective and highly efficient method to prepare biocarbon catalyst for ORR in fuel cells.

关键词： Electrocatalyst Biocarbon Lignin Nitrogen and sulfur co-doped carbon Oxygen reduction reaction

Syngas production by dry reforming of the mixture of glycerol and ethanol with CaCO3

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Journal of Energy Chemistry 2020年第4期29卷 90-97页

作者： Chengxiong Dang Shijie Wu Guangxing Yang yonghai cao Hongjuan Wang Feng Peng Hao Yu School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006GuangdongChina School of Chemistry and Chemical Engineering Guangdong Provincial Key Lab of Green Chemical Product TechnologySouth China University of TechnologyGuangzhou 510640GuangdongChina

The reduction of CO2 emission is crucial for the mitigation of climate change.A considerable amount of industrial CO2 can be absorbed in the form of carbonates through high-temperature sorption *** this regard,the efficient conversion of carbonates to value-added products will provide an economically viable method for the sustainable usage of carbon ***,we report a promising solution involving the use of a glycerol and ethanol mixture as a hydrogen donor in the dry reforming process with CaCO3 to produce syngas.A series of metal active components,including Ni,Fe,Co,Cu,Pt,Pd,Ru,and Rh,was used to promote this *** showed comparable performance with that of Pd,but outperformed Co,Fe,Cu,Rh,Ru,and *** 100%conversion of glycerol and ethanol,~92%selectivity of synthesis gas(H2 and CO),and a H2/CO ratio of^1.2 were achieved over CaCO3 containing10 wt%Ni(10Ni-CaCO3).Meanwhile,the CO2 concentration was less than 5 vol%,indicating that most of the CO2 captured by the carbonate can be transformed into chemicals;however,they cannot simply be *** CO2 released from the decomposition of CaCO3 not only adjusted the ratio of H2 to CO but also eliminated cokes to guarantee the CO2 absorption-conversion cyclic stability in the absence of steam and at high temperatures.

关键词： Glycerol Ethanol CaCO3 Dry reforming Syngas

Bi-functional particles for integrated thermo-chemical processes:Catalysis and beyond

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Particuology 2021年第3期19卷 10-32页

作者： Hanke Li Chengxiong Dang Guangxing Yang yonghai cao Hongjuan Wang Feng Peng Hao Yu State Key Laboratory of Pulp and Paper Engineering School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640China School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China

Particulate materials possessing dual functionalities have received tremendous investigations in many fields,owing to their superiority over mono-functional counterparts and their potential for process integration and *** review focuses on bi-functional catalytic particles which also serve as sorbents/adsorbents or heat suppliers in the scheme of various thermo-chemical processes,enabling inherent separation or energy conservation within single-step ***-functional particles applied for integration of reaction and separation including sorption-enhanced hydrogen production and integrated capture and catalytic conversion processes are reviewed in detail,providing insights into material design and key performance *** the other hand,bi-functional particles applied for integration of reaction and non-thermal radiation heating,including electrothermal and photothermal assisted heterogeneously catalyzed reactions,are also reviewed,with emphasis on the material property and energy efficiency *** bi-functional particles show broad adaptability and feasibility in various reactions operated in integrated and intensified schemes,affording huge potentials for further improving productivity and efficiency in thermo-chemical processes.

关键词： Bi-functional particles Thermo-chemical processes Catalysis Separation Energy conservation Process integration and intensification

Noble-metal-based high-entropy-alloy nanoparticles for electrocatalysis

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Journal of Energy Chemistry 2022年第5期31卷 721-751页

作者： Xianfeng Huang Guangxing Yang Shuang Li Hongjuan Wang yonghai cao Feng Peng Hao Yu School of Biology and Biological Engineering South China University of TechnologyGuangzhou 510006GuangdongChina School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510641GuangdongChina School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006GuangdongChina

Since the two seminal papers were published independently in 2004, high-entropy-alloys(HEAs) have been applied to structural and functional materials due to the enhanced mechanical properties, thermal stability, and electrical conductivity. In recent years, HEA nanoparticles(HEA-NPs) were paid much attention to in the field of catalysis for the promoted catalytic activity. Furthermore, the various ratios among the metal components and tunable bulk and surface structures enable HEAs have big room to enhance the catalytic performance. Especially, noble-metal-based HEAs displayed significantly improved performance in electrocatalysis, where the ‘core effects’ were employed to explain the superior catalytic activity. However, it is insufficient to understand the essential mechanism or further guide the design of electrocatalysts. Structure–property relationship should be disclosed for the catalysis on HEA-NPs to accelerate the process of seeking high effective and efficient electrocatalysts. Therefore, we summarized the recent advances of noble-metal-based HEA-NPs applied to electrocatalysis, such as hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, methanol oxidation reaction, ethanol oxidation reaction, formic acid oxidation reaction, hydrogen oxidation reaction, carbon dioxide reduction reaction and nitrogen reduction reaction. For each electrocatalytic reaction, the reaction mechanism and catalyst structure were presented, and then the structure–property relationship was elaborated. The review begins with the development, concept, four ‘core effect’ and synthesis methods of HEAs. Next,the electrocatalytic reactions on noble-metal-based HEA-NPs are summarized and discussed independently. Lastly, the main views and difficulties pertaining to structure–property relationship for HEAs are discussed.

关键词： Noble-metal-based High-entropy-alloy Nanoparticles ‘Core effects’ Structure–property relationship Electrocatalysis

Production of high-purity hydrogen from paper recycling black liquor via sorption enhanced steam reforming

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Green Energy & Environment 2021年第5期6卷 771-779页

作者： Hanke Li Shijie Wu Chengxiong Dang Guangxing Yang yonghai cao Hongjuan Wang Feng Peng Hao Yu State Key Laboratory of Pulp and Paper Engineering School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou510640China School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou510006China

Environmentally friendly and energy saving treatment of black liquor(BL),a massively produced waste in Kraft papermaking process,still remains a big ***,by adopting a NiecaoeCa_(12)Al_(14)O_(33) bifunctional catalyst derived from hydrotalcite-like materials,we demonstrate the feasibility of producing high-purity H_(2)(~96%)with 0.9 mol H_(2) mol^(-1) C yield via the sorption enhanced steam reforming(SESR)of *** SESRBL performance in terms of H_(2) production maintained stable for 5 cycles,but declined from the 6th ***,Raman spectroscopy,elemental analysis and energy dispersive techniques were employed to rationalize the deactivation of the *** was revealed that gradual sintering and agglomeration of Ni and cao and associated coking played important roles in catalyst deactivation and performance degradation of SESRBL,while deposition of Na and K from the BL might also be responsible for the declined *** the other hand,it was demonstrated that the SESRBL process could effectively reduce the emission of sulfur species by storing it as CaSO_(3).Our results highlight a promising alternative for BL treatment and H_(2) production,thereby being beneficial for pollution control and environment governance in the context of mitigation of climate change.

关键词： Black liquor High-purity hydrogen Sorption enhanced steam reforming Sulfur removal

The photo-decomposition and self-restructuring dynamic equilibrium mechanism of Cu_(2)(OH)_(2)CO_(3)for stable photocatalytic CO_(2)reduction

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Journal of Energy Chemistry 2024年第5期92卷 104-112页

作者： Yaqing Zhi Haoning Mao Guangxing Yang Qiao Zhang Zhiting Liu yonghai cao Siyuan Yang Feng Peng School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006GuangdongChina College of Materials and Energy South China Agricultural UniversityGuangzhou 510642GuangdongChina School of Chemistry and Chemical Engineering South China University and TechnologyGangzhou 510640GuangdongChina

Developing suitable photocatalysts and understanding their intrinsic catalytic mechanism remain key challenges in the pursuit of highly active,good selective,and long-term stable photocatalytic CO_(2)reduction(PCO_(2)R)***,monoclinic Cu_(2)(OH)_(2)CO_(3)is firstly proven to be a new class of photocatalyst,which has excellent catalytic stability and selectivity for PCO_(2)R in the absence of any sacrificial agent and *** on a Cu_(2)(OH)_(2)^(13)CO_(3)photocatalyst and 13CO_(2)two-sided^(13)C isotopic tracer strategy,and combined with in situ diffused reflectance infrared Fourier transform spectroscopy(DRIFTS)analysis and density functional theory(DFT)calculations,two main CO_(2)transformation routes,and the photo-decomposition and self-restructuring dynamic equilibrium mechanism of Cu_(2)(OH)_(2)CO_(3)are definitely *** PCO_(2)R activity of Cu_(2)(OH)_(2)CO_(3)is comparable to some of state-of-the-art novel ***,the PCO_(2)R properties can be further greatly enhanced by simply combining Cu_(2)(OH)_(2)CO_(3)with typical TiO_(2)to construct composites *** highest CO_(2)and CH_(4)production rates by 7.5 wt%Cu_(2)(OH)_(2)CO_(3)-TiO_(2)reach 16.4μmol g^(-1)h^(-1)and 116.0μmol g^(-1)h^(-1),respectively,which are even higher than that of some of PCO_(2)R systems containing sacrificial agents or precious metals modified *** work provides a better understanding for the PCO_(2)R mechanism at the atomic levels,and also indicates that basic carbonate photocatalysts have broad application potential in the future.

关键词： CO_(2)photocatalytic reduction Photocatalysis Basic copper carbonate Self-reconstruction Photocatalyst

Enhancing hydrogen evolution and oxidation kinetics through oxygen insertion into nickel lattice

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Journal of Energy Chemistry 2024年第8期95卷 529-539,I0012页

作者： Wanli Liang Xiyu Gong Jinchang Xu Zixuan Dan Fanyan Xie Hulei Yu Hao-Fan Wang Yanshuo Jin Hongjuan Wang yonghai cao Hui Meng Hao Yu School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510641GuangdongChina Siyuan Laboratory Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy MaterialsGuangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy MaterialsGuangdong Provincial Key Laboratory of Optical Fiber Sensing and CommunicationsDepartment of PhysicsJinan UniversityGuangzhou 510632GuangdongChina GBA Branch of Aerospace Information Research Institute Chinese Academy of SciencesGuangzhou 510700GuangdongChina Instrumental Analysis&Research Center Sun Yat-sen UniversityGuangzhou 510275GuangdongChina School of Materials Science and Engineering South China University of TechnologyGuangzhou 510641GuangdongChina

Nickel-based materials,including metallic Ni and Ni oxide,have been widely studied in the exploration of non-precious-metal hydrogen electrocatalysts,but neither pure Ni nor NiO is ideal for the hydrogen evolution reaction(HER)and hydrogen oxidation reaction(HOR).In this paper,an oxygen insertion strategy was applied on nickel to regulate its hydrogen electrocatalytic performance,and the oxygen-inserted nickel catalyst was successfully obtained with the assistance of tungsten dioxide support(denoted as O-Ni/WO_(2)).The partial insertion of oxygen in Ni maintains the face-centered cubic arrangement of Ni atoms,simultaneously expanding the lattice and increasing the lattice ***,the adsorption strength of^(*)H and^(*)OH on Ni is optimized,thus resulting in superior electrocatalytic performance of0-Ni/WO_(2)in alkaline HER/*** Tafel slope of O-Ni/WO_(2)@NF for HER is 56 mV dec^(-1),and the kinetic current density of O-Ni/WO_(2)for HOR reaches 4.85 mA cm^(-2),which is ahead of most currently reported *** proposed strategy of inserting an appropriate amount of anions into the metal lattice could provide more possibilities for the design of high-performance catalysts.

关键词： Hydrogen evolution Hydrogen oxidation Nickel Oxygen insertion Adsorption free energy

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数字时代司法质量量化评估的困境与因应

甘肃社会科学 2024年第2期 128-138页

作者：郑智航曹永海山东大学法学院山东青岛266237

科学有效的司法质量量化评估既是当下中国司法改革的一项重要内容,也是检验司法改革成效的重要方式。小数据司法质量评估以线性因果关系为分析逻辑,通过收集、整理和分析司法数据,对具体司法活动进行评价。小数据司法质量评估在优化司... 详细信息

科学有效的司法质量量化评估既是当下中国司法改革的一项重要内容,也是检验司法改革成效的重要方式。小数据司法质量评估以线性因果关系为分析逻辑,通过收集、整理和分析司法数据,对具体司法活动进行评价。小数据司法质量评估在优化司法管理、检验司法改革成效、维护司法公信力等方面发挥着重要价值。但它存在数据质量不高,指标体系科学性不强,实效性弱的问题。以大数据技术为基础的司法质量评估具有数据来源丰富、数据种类广泛,以及评估体系客观、全面等优势。目前,大数据司法质量评估面临着高可用司法数据不足、算法偏见等问题。在构建以大数据分析技术为主的司法质量评估体系的过程中,既要充分发挥大数据分析方法所具有的优势,同时也要克服现有不足。通过完善司法大数据库的建设,充分发挥大数据司法质量评估的优势;通过明确大数据方法的应用范畴,保障大数据分析方法在司法质量评估中应用的合理性;通过融合小数据量化评估和定性评估范式,弥补大数据司法质量评估的不足。

关键词：司法质量评估大数据量化评估司法公正司法改革

大类招生背景下基于微课预习的分析化学实验课程改革探索

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化工高等教育 2020年第6期37卷 78-82页

作者：陶佳曹永海余皓华南理工大学化学与化工学院广东广州510640

近年来"通才教育"理念受到越来越多的关注,许多高校开始实施按专业大类招生。立足于化工与制药类专业大类招生背景下的学生培养目标,针对分析化学实验课程的特点,文章提出将微课用于实验课程预习环节,并以"混合碱的组成及各组分含量的测... 详细信息

近年来"通才教育"理念受到越来越多的关注,许多高校开始实施按专业大类招生。立足于化工与制药类专业大类招生背景下的学生培养目标,针对分析化学实验课程的特点,文章提出将微课用于实验课程预习环节,并以"混合碱的组成及各组分含量的测定"章节为例,探讨了基于微课预习的实验课程设计。

关键词：大类招生化工与制药类专业化学分析实验课程微课

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面向二氧化碳捕集的过程强化技术进展

化工进展 2020年第12期39卷 4919-4939页

作者：李函珂党成雄杨光星曹永海王红娟彭峰余皓华南理工大学化学与化工学院广东广州510640 广州大学化学化工学院广东广州510006

化石能源的大量燃烧在推进人类工业化进程的同时也使当今世界面临愈发严峻的气候变化和环境问题。为降低大气中日益增长的CO_2浓度并实现《巴黎协定》所设定的2℃目标,CO_2捕集技术得到了越来越广泛的关注和研究,其中部分技术已实现了... 详细信息

化石能源的大量燃烧在推进人类工业化进程的同时也使当今世界面临愈发严峻的气候变化和环境问题。为降低大气中日益增长的CO_2浓度并实现《巴黎协定》所设定的2℃目标,CO_2捕集技术得到了越来越广泛的关注和研究,其中部分技术已实现了小规模工业化。在持续推进节能减排的背景下,通过CO_2捕集对现有工业过程进行强化是CO_2捕集技术发展的一个新兴方向,如此不但可提高原有过程的效率和产品品质,还可大幅减少其碳排放,是具有应用前景的技术路线。本文从CO_2捕集的主流技术出发,介绍了面向CO_2捕集的过程强化技术,重点介绍CO_2捕集强化的蒸汽重整制氢过程、水气变换过程和生物质气化过程,以及耦合CO_2捕集的CO_2加氢过程、CH_4干重整过程和化学链燃烧过程,最后还对捕集后CO_2的利用与转化技术进行了简介。

关键词：二氧化碳捕集二氧化碳利用制氢过程耦合过程强化