Search Results 1-20 of 855

1
2
3
4
5
6
...
43
1 / 43

1

Alkaline Fuel Cells : Current Status and Future Prospect of Anion Exchange Membrane Fuel Cells [in Japanese]

宮武健治

燃料電池 19(4), 67-71, 2020
2

CONSIDERATION ON EFFICIENT RECOVERY SYSTEM OF USEFUL METALS IN MUNICIPAL WASTE UTILIZING CENTRALIZED REDUCTIVE MELTING [in Japanese]

YAMAGUCHI Naohisa , MATSUTO Toshihiko

　廃棄物に含まれる金属資源の効率的な回収方法の1つとして焼却残渣の集約型還元溶融が実用化されている．一方で小型家電リサイクルの回収目標は未達であり，特に人口100万人以上の都市での回収効率が低いことが指摘されている．本研究では，小型家電の回収効率が低い人口100万人以上の都市の一部に集約型還元溶融を導入し焼却残渣から金属回収を行うことによって，小型家電リサイクルの回収目標と同等の …

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 76(6), II_81-II_90, 2020

J-STAGE
3

Estimation of the fate of gold during waste thermal treatments using thermodynamic equilibrium calculation [in Japanese]

Yui Kazuko , Kuramochi Hidetoshi , Osako Masahiro

廃棄物の熱処理における金属回収技術の開発と高度化は近年注目されており、金などの貴金属に関して、これまでに灰の分級や加熱処理による回収法が報告されている。さらなる技術の進展のためには、さまざまな雰囲気における元素の挙動に関して理解を深めることが有効である。廃棄物の熱処理において想定される金の化合物形態は、単体または合金の金、硫化金、ハロゲン化金、スラグ相に分配した状態が想定されるが …

Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 31(0), 197, 2020

J-STAGE
4

Microporous Titanate Nanofibers as Excellent Adsorbents for Water Purification and Softening

Abdelaal Haitham Mohammad , Ide Yusuke

… Efficient and ultrafast collection of metal ions from water is indispensable for applications such as drinking water purification and precious elements recovery. …

Chemistry Letters 49(11), 1274-1277, 2020

J-STAGE
5

Environmentally Sound Recovery of Gold from Waste Electrical and Electronic Equipment Using Organic Aqua Regia

Yoshimura Akihiro , Takatori Kota , Matsuno Yasunari

We conducted experiments using unit processes to prove the feasibility of the concept of an environmentally sound Au recovery process from waste electrical and electronic equipment (WEEE) usi …

International Journal of Automation Technology 14(6), 999-1004, 2020

J-STAGE
6

Study on the NOx Reduction Mechanism of Precious Metal Single-Nano Sized Catalyst during the Acceleration and Deceleration Region [in Japanese]

Matsumura Yasuhiro , Shigetsu Masahiko , Nakanishi Mie , Koda Yuki , Sumida Hirosuke , Yamada Hiroshi

三元触媒において、車両減速から再加速時（加減速領域）のNOx還元機能を高める必要がある。これまでに、耐久後でも貴金属粒子が数ナノメートルで分散可能な貴金属シングルナノ粒子触媒が有効であることを報告した。今回、加減速領域でのロジウム粒子の化学状態変化を解析することで、NOx還元メカニズムを検討した。

Transactions of Society of Automotive Engineers of Japan 51(5), 888-893, 2020

J-STAGE
7

Preparation of Highly Selective Sorbents Composed of Peptides and Silica Using Novel Molecular Imprinting Technology for Target Metal Ions

Stevens Morlu Gf , Yokota Saki , Gotoh Takeshi

… A novel molecular imprinting technology was developed to prepare highly selective sorbents, composed of adhesive peptides and microporous silica particles, for the adsorption of target metal ions from aqueous environments. … The resulting DOPA-peptides were incubated with target metal ions Ni(II), Cu(II), Co(II), or Zn(II), and subsequently with microporous silica particles, at pH 8.0 and 25°C. …

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 53(9), 485-493, 2020

J-STAGE
8

Industry-Academia Cooperation by Sumitomo Metal Mining Collaborative Research Unit [in Japanese]

Uchikoshi Masahito

Materia Japan 59(9), 466-471, 2020

J-STAGE
9

Long-term clinical outcome of posterior metal-ceramic crowns fabricated with direct metal laser-sintering technology

Chaar M. Sad , Passia Nicole , Kern Matthias

… Objectives: To evaluate the long-term clinical outcome of posterior metal-ceramic crowns fabricated with CAD/CAM-based laser-sintering technology (BEGO Medical, Bremen, Germany).Materials and Methods: Sixty posterior crowns were placed in 39 patients. … A base metal alloy (CoCr) and a precious alloy (AuPt) were used for 31 and 29 posterior crowns, respectively, which were veneered using the layering technique. …

Journal of Prosthodontic Research 64(3), 354-357, 2020

J-STAGE
10

Development of a Selective Adsorbent for Platinum(II) and Gold(III) by Simple Treatment of Glycidyl Methacrylate Polymer with Ammonia

OJIMA Sakiko , SAITO Shotaro , ASAKAWA Miho , YAMAGUCHI Hitoshi , KUBOTA Toshio , IGARASHI Shukuro

… The polymer-immobilizing absorbent was prepared by the treatment of a cotton ball having no metal ion adsorption feature with the ammonia-treated polymer solution. … The method shown in this study is expected to apply to the separation and recovery of precious metals from urban mines where cost effectiveness and environmental impact are important. …

BUNSEKI KAGAKU 69(4.5), 187-191, 2020

J-STAGE
11

Hydrogenation of Carbon Dioxide to Formic Acid Using Phosphine-free Non-precious Metal Catalyst [in Japanese]

Takeuchi Katsuhiko

… In recent years, formic acid synthesis reactions using non-precious metal complexes as catalysts are attracting attention from the viewpoint of environmental harmony and economy. … without using precious metals: (1) phosphine free iron complexes catalyst combined with MOF, (2) transition metal free B(C6F5)3 …

Journal of Synthetic Organic Chemistry, Japan 78(7), 726-727, 2020

J-STAGE
12

Synthesis and Carbonization of Polyimide Nanoparticles Modified with Long Alkyl Chains Aspiring to Non-precious-metal Fuel Cell Catalysts

Hori Kazushige , Nagata Shinsuke , Nabae Yuta , Hayakawa Teruaki

… Polyimide (PI) nanoparticles are known as precursors of non-precious metal cathode catalysts, which are expected to be the alternatives for platinum-based catalysts for the globalization of polymer electrolyte fuel cells. …

Journal of Photopolymer Science and Technology 33(3), 327-332, 2020

J-STAGE
13

Effect of Copper Collector Form on Recovery of Suspended Platinum and Palladium Metals in the Al2O3-CaO-SiO2 Slag at 1723 K [in Japanese]

Murata Takashi , Yamaguchi Katsunori

… PGMs (Platinum group metals) used as catalyst which reduces toxic substances in emission gas exhausted from an automobile should be recycled because they are precious metals produced only at the limited regions and scarcity. …

Journal of the Japan Institute of Metals and Materials 84(4), 115-120, 2020

J-STAGE
14

In Situ Preparation and Unique Electrical Behaviors of Gold@Hollow Polyaniline Nanospheres through Recovery of Gold from Simulated e-Waste

Tian Xiangyu , Zhang Bin , Hou Jie , Gu Minchao , Chen Yu

… One of the most effective ways to solve the dilemma between resources shortages and increasing demand is to develop a cost-effective approach for recovery and reuse of the precious metals (especially Au and Ag) derived from e-wastes (electronic devices and the components thereof), which will most likely be driven by breakthroughs in environmentally friendly methodologies that combine the economy of scale with function. …

Bulletin of the Chemical Society of Japan 93(3), 373-378, 2020

J-STAGE
15

Study on Adsorbents for Metal Ions Using Porous Silicate and Cellulose Fiber [in Japanese]

OSHIMA Syunichi

溶媒抽出法で用いられるβ-ジケトン型キレート試薬を担持したメソポーラスケイ酸塩MCM-41への二価金属イオンの吸着挙動を明らかにした。検討した金属イオンはキレート試薬と1：2錯体を形成し，MCM-41表面に吸着することを見出した。またMCM-41表面の疎水性を制御することにより，金属イオンの吸着能を改善できることが示唆された。さらに，窒素ドナー原子を有する多座配位子をセルロース繊 …

Journal of Ion Exchange 31(1), 1-8, 2020

J-STAGE
16

EVALUATION OF METAL RESOURCE POTENTIAL OF MOLTEN METAL PRODUCED IN MUNICIPAL SOLID WASTE GASIFICATION MELTING FURNACES AND ASH MELTING FURNACES [in Japanese]

YAMAGUCHI Naohisa , MATSUTO Toshihiko , TOJO Yasumasa , NAKAMINE Akihito

　一般廃棄物のガス化溶融・灰溶融施設で生成される溶融メタルには有用金属が分離濃縮される．本研究では溶融メタルの金属資源性に着目し，全国のガス化溶融・灰溶融施設の溶融メタル等の金属濃度を分析するとともに，炉形式や溶融条件等との関係を考察した．溶融メタル中の金属濃度は既存研究と同程度であり，鉱石の金属品位と比べてAu，Pt，Pdは10倍以上であった．金属濃度は炉形式間で差が見られ，こ …

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 76(1), 1-8, 2020

J-STAGE
17

Non Precious Metal Diesel Particulate Matter Oxidation Catalyst Using Lattice Oxygen [in Japanese]

石原達己

触媒 = Catalysts & catalysis 61(6), 367-372, 2019-12
18

Thermal Deterioration Analysis of Fe and PGM Catalysts for Gasoline Engines [in Japanese]

岩知道均一

触媒 = Catalysts & catalysis 61(6), 347-352, 2019-12
19

Precious Metal Free Automotive Three-Way Catalyst : Inhibition of NO Reduction by Self-Poisoning and Solution with Tandem Configuration [in Japanese]

植田格弥 , 辻雅史 , 大山順也 , 薩摩篤

触媒 = Catalysts & catalysis 61(6), 336-340, 2019-12
20

Reducing Precious Metal Loading and Improving Durability in Automotive Exhaust Catalyst [in Japanese]

堀正雄

触媒 = Catalysts & catalysis 61(6), 329-335, 2019-12

1
2
3
4
5
6
...
43
1 / 43

Search Results 1-20 of 855

Related Authors

Related Journals