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Photophysics and electrochemistry relevant to photocatalytic water splitting involved at solid–electrolyte interfaces

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Journal of Energy Chemistry 2017年第2期26卷 259-269页

作者： Tatsuya Shinagawa Zhen Cao luigi cavallo Kazuhiro Takanabe King Abdullah University of Science and Technology(KAUST) KAUST Catalysis Center and Physical Sciences and Engineering Division(PSE)4700 KAUSTThuwal 23955-6900Saudi Arabia

Direct photon to chemical energy conversion using semiconductor–electrocatalyst–electrolyte interfaces has been extensively investigated for more than a half century. Many studies have focused on screening materials for efficient photocatalysis. Photocatalytic efficiency has been improved during this period but is not sufficient for industrial commercialization. Detailed elucidation on the photocatalytic water splitting process leads to consecutive six reaction steps with the fundamental parameters involved: The photocatalysis is initiated involving photophysics derived from various semiconductor properties(1: photon absorption, 2: exciton separation). The generated charge carriers need to be transferred to surfaces effectively utilizing the interfaces(3: carrier diffusion, 4: carrier transport). Consequently, electrocatalysis finishes the process by producing products on the surface(5: catalytic efficiency, 6: mass transfer of reactants and products). Successful photocatalytic water splitting requires the enhancement of efficiency at each stage. Most critically, a fundamental understanding of the interfacial phenomena is highly desired for establishing 'photocatalysis by design' concepts, where the kinetic bottleneck within a process is identified by further improving the specific properties of photocatalytic materials as opposed to blind material screening. Theoretical modeling using the identified quantitative parameters can effectively predict the theoretically attainable photon-conversion yields. This article provides an overview of the state-of-the-art theoretical understanding of interfacial problems mainly developed in our *** water splitting(especially hydrogen evolution on metal surfaces) was selected as a topic,and the photophysical and electrochemical processes that occur at semiconductor–metal, semiconductor–electrolyte and metal–electrolyte interfaces are discussed.

关键词： Photocatalysis Interface Water splitting Modeling Electrocatalysis Hydrogen evolution

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Clinical features,radiological profiles,pathological features and surgical outcomes of pituicytomas:a report of 11 cases and a pooled analysis of individual patient data

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Military Medical Research 2022年第3期9卷 277-285页

作者： Jian-Hua Cheng Ding Nie Bin Li Song-Bai Gui Chu-Zhong Li Ya-Zhuo Zhang luigi Maria cavallo Peng Zhao Neurosurgical Department Beijing Tiantan HospitalCapital Medical UniversityNo.119 South Fourth Ring West RoadFengtai DistrictBeijing 100070China Department of Cell and Biology Beijing Neurosurgical InstituteBeijing 100070China Division of Neurosurgery UniversitáDegli Studi di Napoli FedericoⅡ80142 NaplesItaly

Background:Pituicytoma is an extremely rare low-grade glial tumor that is closely related to the neurohypophysis *** studies of pituicytomas include only several *** better understand this disease,we reviewed a series of cases of *** diagnosis and treatment of pituicytoma must be further ***:Eleven patients with pituicytoma admitted to Beijing Tiantan Hospital from 2012 to 2019 were *** clinical features,including radiological and histological examination,surgical records and prognosis were ***-eight other previously published cases of pituicytoma also were used to analyze the predictive factors for the *** Cox regression model was used for univariate and multivariate ***:Our patients included 5 males(45.5%)and 6 females(54.5%),with a mean age of 49.3 *** tumor was located in the suprasellar region in 5 patients(45.5%),intrasellar region in 4 patients(36.4%),and intrasellarsuprasellar region in 2 patients(18.2%).All patients were misdiagnosed with other common tumors in the sellar region before the *** the operation,gross total resection(GTR)of the tumor was achieved in 6 patients(54.5%),and subtotal resection(STR)was achieved in 5 patients(45.5%).The mean progression-free survival(PFS)time was 29.82 *** progression after surgical resection occurred in 4 patients(36.4%).Among them,60.0%of the patients(cases 4,5,7)with STR experienced progression,while 16.7%of the patients(case 2)with GTR experienced *** with the 68 cases in the literature,GTR was an independent risk factor for PFS time(P<0.05).Conclusions:Pituicytomas are more common in middle-aged people and the sellar *** clinical manifestations of pituicytomas are different,but no diagnostic clinical features have been identified other than an abnormally abundant blood ***,GTR is the best approach for the treatment of *** patients and longer follow-up perio

关键词： Pituicytoma Endoscopic transsphenoidal surgery Craniotomy Posterior pituitary lobe tumor

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Tungsten Blue Oxide as a Reusable Electrocatalyst for Acidic Water Oxidation by Plasma-Induced Vacancy Engineering

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CCS Chemistry 2021年第3期3卷 1553-1561页

作者： Hanfeng Liang Zhen Cao Chuan Xia Fangwang Ming Wenli Zhang Abdul-Hamid Emwas luigi cavallo Husam N.Alshareef Materials Science and Engineering Physical Science and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal 23955 KAUST Catalysis Center(KCC) King Abdullah University of Science and Technology(KAUST)Thuwal 23955 Department of Chemical and Biomolecular Engineering Rice UniversityHoustonTX 770054 Core LabsKing Abdullah University of Science and Technology(KAUST)Thuwal 23955 Core Labs King Abdullah University of Science and Technology(KAUST)Thuwal 23955

In contrast to alkaline water electrolysis,acidic water electrolysis remains an elusive goal due to the lack of earth-abundant,efficient,and acid-stable water oxidation ***,we show that materials with intrinsically poor electrocatalytic activity can be turned into active electrocatalysts that drive the acidic oxygen evolution reaction(OER)*** development is achieved through ultrafast plasma sputtering,which introduces abundant oxygen vacancies that reconstruct the surface electronic structures,and thus,regulated the surface interactions of electrocatalysts and the OER *** tungsten oxide(WO_(3))as an example,we present a broad spectrum of theoretical and experimental characterizations that show an improved energetics of OER originating from surface oxygen vacancies and resulting in a significantly boosted OER performance,compared with pristine WO_(3).Our result suggests the efficacy of using defect chemistry to modify electronic properties and hence to improve the OER performance of known materials with poor activity,providing a new direction for the discovery of acid-stable OER catalysts.

关键词： WO_(3) vacancy engineering plasma acidic OER reusable electrocatalyst

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Quantum confinement effect of two-dimensional all-inorganic halide perovskites

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Science China Materials 2017年第9期60卷 811-818页

作者：蔡波李晓明顾宇 Moussab Harb 李建海谢美秋曹菲宋继中张胜利 luigi cavallo 曾海波 MIIT Key Laboratory of Advanced Display Materials and Devices Institute of Optoelectronics & NanomaterialsCollege of Materials Science and EngineeringNanjing University of Science and Technology King Abdullah University of Science and Technology (KAUST) KAUST Catalysis Center (KCC)Physical Sciences and Engineering Division (PSE)

Quantum confinement effect（QCE）, an essential physical phenomenon of semiconductors when the size becomes comparable to the exciton Bohr radius, typically results in quite different physical properties of low-dimensional materials from their bulk counterparts and can be exploited to enhance the device performance in various optoelectronic applications. Here, taking Cs Pb Br3 as an example, we reported QCE in all-inorganic halide perovskite in two-dimensional（2D） nanoplates. Blue shifts in optical absorption and photoluminescence spectra were found to be stronger in thinner nanoplates than that in thicker nanoplates, whose thickness lowered below -7 nm. The exciton binding energy results showed similar trend as that obtained for the optical absorption and photoluminescence. Meanwile, the function of integrated intensity and full width at half maximum and temperature also showed similar results, further supporting our conclusions. The results displayed the QCE in all-inorganic halide perovskite nanoplates and helped to design the all-inorganic halide perovskites with desired optical properties.

关键词： quantum confinement effect all-inorganic halide perovskites nanoplates temperature dependence luminescence

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内镜下扩大经鼻蝶入路术中多层技术颅底重建

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中国微侵袭神经外科杂志 2010年第9期15卷 392-394页

作者：展如才张合林 Paolo Cappabianca luigi Mariacavallo 济南市第三人民医院神经外科 250101 那不勒斯费德里克二世大学神经医学中心神经外科意大利80133

目的总结内镜下扩大经鼻蝶入路鞍区及鞍旁区多层技术重建颅底的经验。方法回顾性分析12例鞍区及鞍旁区肿瘤的临床资料,其中颅咽管瘤4例,鞍区脑膜瘤3例,巨大垂体腺瘤5例;均行内镜下扩大经鼻蝶入路肿瘤切除术,并采用多层技术进行颅底重建... 详细信息

目的总结内镜下扩大经鼻蝶入路鞍区及鞍旁区多层技术重建颅底的经验。方法回顾性分析12例鞍区及鞍旁区肿瘤的临床资料,其中颅咽管瘤4例,鞍区脑膜瘤3例,巨大垂体腺瘤5例;均行内镜下扩大经鼻蝶入路肿瘤切除术,并采用多层技术进行颅底重建。结果所有病例肿瘤均达全切除,颅底重建均1次修补成功。术后部分临床症状明显改善。随访3～6个月,均未出现脑脊液漏、细菌性脑膜炎和张力性气颅等并发症。结论内镜下扩大经鼻蝶入路术中多层技术重建颅底是一种简单、安全、有效的方法。

关键词：脑肿瘤神经内镜颅底重建手术入路,经鼻蝶

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经鼻蝶内镜下鞍区手术后颅底多层重建技术

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泰山医学院学报 2009年第8期30卷 598-600页

作者：张合林展如才 Cappabianca. Paolo 齐再利李玉强 cavallo. luigi M 济南市第三人民医院神经外科山东济南250101 Division of Neurosurgery Department of Neurological sciencesUniversità degli Studi di Napoli Federico II

目的探讨内镜下鞍区手术后颅底多层重建技术的应用价值。方法收集病例12例,其中颅咽管瘤4例,鞍区脑膜瘤3例,巨大垂体瘤5例,均行内镜下经鼻蝶扩大入路肿瘤切除术,术中采用多层重建技术进行颅底重建。结果所有病例术后及随访3-6个月均未... 详细信息

目的探讨内镜下鞍区手术后颅底多层重建技术的应用价值。方法收集病例12例,其中颅咽管瘤4例,鞍区脑膜瘤3例,巨大垂体瘤5例,均行内镜下经鼻蝶扩大入路肿瘤切除术,术中采用多层重建技术进行颅底重建。结果所有病例术后及随访3-6个月均未出现脑脊液漏和张力性气颅等并发症。结论内镜下经鼻蝶鞍区手术后颅底多层重建技术是一种简单安全有效的方法。

关键词：内镜经鼻蝶扩大入路颅底重建

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Isolated repeated anastomotic recurrence after sigmoidectomy

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World Journal of Gastroenterology 2014年第43期20卷 16343-16348页

作者： Giovanni Conzo Claudio Mauriello Claudio Gambardella Fabio cavallo Ernesto Tartaglia Salvatore Napolitano luigi Santini Department of Anaesthesiologic Surgical and Emergency ScienceⅦ Division of General SurgerySecond University of Naples80131 NaplesItaly

Repeated anastomotic recurrence(AR)of colonic cancer is *** report a case of a double-isolated AR after *** 2003,a 60-year-old woman underwent stapled sigmoid resection for a moderately differentiated *** rectal bleeding occurred after six months,and colonoscopy detected an ***,an additional stapled colorectal anastomosis was *** months later,a colonoscopy detected a circumferential AR that prompted the completion of a second colorectal resection,with a doublestapled colorectal ***-four hours after surgery,a massive pulmonary embolism occurred,and the patient died within a few *** present,onlysix cases of repeated isolated AR have been *** segmental colorectal resections are generally associated with a favourable prognosis,with a median survival rate of 45 mo(range,13-132 mo).Repeated isolated ARs are rare,and segmental colorectal resections are generally associated with long-term diseasefree survival.

关键词： Repeated Anastomotic Recurrence Stapled Anastomosis Viable Exfoliated Cells

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